GARDENA CITY
COUNCIL
Regular Meeting Notice and Agenda
Council Chamber at City Hall
1700 West 162nd Street, Gardena, California
Website: www.cityofgardena.org
Tuesday, April 14, 2026
Closed Session 7:00 p.m.
Open Session 7:30 p.m.
TASHA CERDA, Mayor
MARK E. HENDERSON, Mayor Pro Tem
RODNEY G. TANAKA, Council Member
PAULETTE C. FRANCIS, Council Member
WANDA LOVE, Council Member
MINA SEMENZA, City Clerk
GUY H. MATO, City Treasurer
CLINT OSORIO, City Manager
CARMEN VASQUEZ, City Attorney
LISA KRANITZ, Assistant City Attorney
IVY TSAI, Assistant City Attorney
If you would like to participate in this meeting, you can participate via the following options:
1. VIEW THE MEETING live on SPECTRUM CHANNEL 22 or ONLINE at youtube.com/CityofGardena
2. PARTICIPATE BEFORE THE MEETING by emailing the Deputy City Clerk at [email protected] by 5:00p.m. on the day of the meeting and write "Public Comment" in the subject line. Written public comments will be provided to the City Council and will be part of the record but will not be read aloud.
3. ATTEND THE MEETING IN PERSON
PUBLIC COMMENT: The City Council will hear from the public on any item on the agenda or any item of interest that is not on the agenda at the following times:
Agenda Items - At the time the City Council considers the item or during Oral Communications Non-agenda Items - During Oral Communications
Public Hearings - At the time of the Public Hearings listed on the Agenda If you wish to address the Council, please complete a “Speaker Request” form and present it to the City Clerk or Sergeant of Arms. You will be called to the podium by name when it is your turn to address the Council.
The City Council cannot legally take action on any item not scheduled on the Agenda. Such items may be referred for administrative action or scheduled on a future Agenda. Members of the public wishing to address the City Council will be given three (3) minutes to speak.
4. The City of Gardena, in complying with the Americans with Disabilities Act (ADA), requests individuals who require special accommodations to access, attend and/or participate in the City meeting due to disability, to please contact the City Clerk's Office by phone (310) 217-9565 or email [email protected] at least 24 business hours prior to the scheduled general meeting to ensure assistance is provided. Assistive listening devices are available.
STANDARDS OF BEHAVIOR THAT PROMOTE CIVILITY AT ALL PUBLIC MEETINGS Treat everyone courteously;
Listen to others respectfully;
Exercise self-control;
Give open-minded consideration to all viewpoints;
Focus on the issues and avoid personalizing debate; and Embrace respectful disagreement and dissent as democratic rights, inherent components of an inclusive public process, and tools for forging sound decisions
Thank you for your attendance and cooperation
1. ROLL CALL
2. PUBLIC COMMENT ON CLOSED SESSION
3. CLOSED SESSION
3.A. CONFERENCE WITH LABOR NEGOTIATORS
Government Code Section 54957.6
Agency Designated Representative: Clint Osorio, City Manager Employee Organization:
1. Confidential / Unrepresented Employees
RETURN FROM CLOSED SESSION ROLL CALL
CITY ATTORNEY REPORT OUT OF CLOSED SESSION
4. PLEDGE OF ALLEGIANCE
186th Street Elementary School
5. INVOCATION
Gardena-Torrance Baptist Church
Pastor Chris Codrington
6. PRESENTATIONS
6.A. Certificate of Recognition to Moe Shemirani in appreciation of his service to the community as a member of the Gardena Economic Business Advisory Commission
6.B. Certificate of Recognition to Sam Kang in appreciation of his service to the community as a member of the Gardena Beautification Commission
6.C. Gardena Events Video Presentation
7. PROCLAMATIONS
7.A. National Volunteer Week - April 19-25, 2026
7.B. "Challenge the Norm and Influence of Marijuana Use on Youth Day" - April 20, 2026
8. APPOINTMENTS
Council Appointments to Commissions, Committees, Councils and Boards (Appointees to be Ratified and Sworn In)
9. PUBLIC COMMENT ON CONSENT CALENDAR
10. CONSENT CALENDAR
NOTICE TO THE PUBLIC- Roll Call Vote Required On The Consent Calendar All matters listed under the Consent Calendar will be enacted by one motion unless a Council Member requests Council discussion, in which case that item will be removed from the Consent Calendar and considered separately following this portion of the agenda.
10.A. Waiver of Reading in Full of All Ordinances Listed on this Agenda and that they be Read by Title Only
CONTACT: CITY CLERK
10.B. Approval of Minutes - Regular Meeting of the City Council, March 24, 2026 CONTACT: CITY CLERK
10.C. Receive and File Minutes - Regular Meeting of the Planning and Environmental Quality Commission, February 17, 2026
CONTACT: COMMUNITY DEVELOPMENT
10.D. Approval of Warrants/Payroll Register, April 14, 2026 CONTACT: ADMINISTRATIVE SERVICES
10.E. Personnel Report P-2026-6 04-14-26
CONTACT: ADMINISTRATIVE SERVICES
11. PLANNING & ENVIRONMENTAL QUALITY COMMISSION ACTION SHEET
11.A. April 7, 2026 MEETING ITEM 6.A
The Planning and Environmental Quality Commission reviewed a request to approve a modification to amend Conditional Use Permit (CUP #5-21); Site Plan Review (SPR #5-21); and Environmental Assessment (EA#2- 26); to replace a previously approved pool and spa with a courtyard and landscaping for the 121-unit single room occupancy housing development that is currently under construction, per Section 18.36.030.P.4 of the Gardena Municipal Code.
Environmental Consideration: The project was considered for a categorical exemption from the provisions of the California Environmental Quality Act (CEQA) pursuant to Section 15332 (Class 32- infill development project).
APPLICANT: Lee Johnson (West Realty Group)
LOCATION: 13126 S. Western Ave., APN (6102-006-013)
Commission Action: The Planning and Environmental Quality Commission adopted Resolution No. PC 4-26, by vote of 4-0, with one commissioner absent, to approve Modification of Conditional Use Permit #5-21, Site Plan Review #5-21; and Environmental Assessment #2-26, subject to the conditions of approval, and directed staff to file a notice of exemption
City Council Action: Receive and file OR Call for Review (By way of two votes from the City Council).
12. ORAL COMMUNICATIONS (LIMITED TO A 30-MINUTES PERIOD) Oral Communications by the public will be heard for one-half hour during the oral communication segment of the agenda. Any additional speakers will be allowed to speak at the end of the meeting after Council Remarks.
Speakers are limited to three minutes, unless otherwise stated by the Mayor. The timer will be displayed on the screen. Your cooperation is appreciated.
12.A. PUBLIC COMMENTS
13. DEPARTMENTAL ITEMS - ADMINISTRATIVE SERVICES
14. DEPARTMENTAL ITEMS - COMMUNITY DEVELOPMENT
14.A. PUBLIC HEARING: INTRODUCTION OF ORDINANCE NO. 1890, An Ordinance of the City of Gardena, California, Amending Portions of Title 18 (Zoning) of the Municipal Code Relating to Review Process and Standards for Mechanical/Robotic Parking Structures, and On-Site Parking Standards for Commercial Uses on Gardena Boulevard Between Normandie Avenue and Vermont Avenue; and Finding the Action Statutorily Exempt from the California Environmental Quality Act Pursuant to the Common Sense Exemption of CEQA Guidelines Section 15061(b)(3) Staff Recommendation:
- Conduct the public hearing and receive public testimony; - Allow three (3) minutes for each speaker; and
- Introduce Ordinance No. 1890
15. DEPARTMENTAL ITEMS - ELECTED & CITY MANAGER'S OFFICES
16. DEPARTMENTAL ITEMS - POLICE
17. DEPARTMENTAL ITEMS - PUBLIC WORKS
17.A. RESOLUTION NO. 6725, Approving the Engineer's Report for the Gardena Consolidated Street Lighting Assessment District for fiscal year 2026-2027, Declaring its Intention to Levy and Collect Assessments Under the Gardena Consolidated Street Lighting District for Fiscal Year 2026-2027, and Setting a Time and Place for Hearing Protests in Relation Thereto (Public Hearing: May 12, 2026) Staff Recommendation: Adopt Resolution No. 6725
17.B. RESOLUTION NO. 6724, Approving the Engineer's Report for the Gardena Artesia Boulevard Landscaping Assessment District for Fiscal Year 2026-2027, Declaring its Intention to Levy and Collect Assessments Under the Gardena Artesia Boulevard Landscaping Assessment District for Fiscal Year 2026-2027, and Appointing a Time and Place for a Public Hearing Thereon (Public Hearing: May 12, 2026)
Staff Recommendation: Adopt Resolution No. 6724
17.C. RESOLUTION NO. 6733, Adopting Storm Drain Master Plan Staff Recommendation: Adopt Resolution No. 6733
18. DEPARTMENTAL ITEMS - RECREATION & HUMAN SERVICES
19. DEPARTMENTAL ITEMS - TRANSPORTATION
20. COUNCIL ITEMS
21. COUNCIL DIRECTIVES
22. CITY MANAGER REMARKS RE: DIRECTIVES / COUNCIL ITEMS
23. COUNCIL REMARKS
1. COUNCIL MEMBER LOVE
2. COUNCIL MEMBER FRANCIS
3. MAYOR PRO TEM HENDERSON
4. MAYOR CERDA
5. COUNCIL MEMBER TANAKA
24. ANNOUNCEMENT(S)
25. REMEMBERANCES
Mrs. Renee Anderson, 82 years old, former Human Services Commissioner, and longtime resident of Gardena.
26. ADJOURNMENT
The Gardena City Council will adjourn to the Closed Session portion of the City Council Meeting at 7:00pm followed by the Regular City Council Meeting at 7:30pm on Tuesday, April 28, 2026.
I hereby certify under penalty of perjury under the laws of the State of California that the foregoing agenda was posted in the City Hall lobby not less than 72 hours prior to the meeting. A copy of said Agenda is available on our website at www.CityofGardena.org.
/s/ MINA SEMENZA
MINA SEMENZA, City Clerk
Date Posted: April 10, 2026
MINUTES
Regular Meeting Notice
Gardena City Council
Tuesday, March 24, 2026
The Regular Meeting Notice and Agenda of the Gardena City Council of the City of Gardena, California was called toorder at 7:08 p.m. on March 24, 2026, in the Council Chamber at City Hall 1700 West 162nd Street, Gardena,California, Mayor Tasha Cerda presiding.
1. ROLL CALL
Present: Mayor Tasha Cerda; Mayor Pro Tem Mark E. Henderson; Council Member Rodney G. Tanaka; Council Member Paulette C. Francis; and Council Member Wanda Love. Other City Officials and Employees present: City Manager Clint Osorio; City Attorney Carmen Vasquez; City Clerk Mina Semenza; and Deputy City Clerk Becky Romero. City Treasurer Guy Mato was not present.
2. PUBLIC COMMENT ON CLOSED SESSION
None.
3. CLOSED SESSION
3.A. CONFERENCE WITH LABOR NEGOTIATORS
Government Code Section 54957.6
Agency Designated Representative: Clint Osorio, City Manager Employee Organization: Gardena Municipal Employees Association (GMEA), Fred G. Quiel, Attorney Director of Administrative Services Ray Beeman was present for Closed Session.
RETURN FROM CLOSED SESSION ROLL CALL
City Clerk Semenza called roll and reported that all Members of the Council were present.
CITY ATTORNEY REPORT OUT OF CLOSED SESSION
When Mayor Cerda asked City Attorney Vasquez if there was anything to report out of Closed Session, City Attorney Vasquez reported that Council met with regards to Item 3.A; staff was provided with direction, but no reportable action was taken.
4. PLEDGE OF ALLEGIANCE
Kyle Chin, who is in 10th grade at North High School, led the Pledge of Allegiance. Kyle is currently serving as a Youth Commissioner with the City and is an active volunteer who is passionate about giving back to his community. He enjoys trying new things and staying involved in a variety of activities. Kyle has participated in cross country and tennis. He is currently taking dance, where he continues to explore new interests and challenge himself.
5. INVOCATION
Pastor Les Higgins of True Way Missionary Baptist Church led the Invocation.
6. PRESENTATIONS
6.A. Certificate of Recognition to Darlene Castillo in appreciation of her service to the community as a member of the Gardena Beautification Commission
Ms. Castillo was not present at the meeting. Mayor Cerda read the Certificate of Recognition, and Council Member Tanaka thanked Ms. Castillo for her service, and wished her well.
6.B. Certificate of Recognition to Cassandra Villa in appreciation of her service to the community as a Tenant Representative of the Rent Mediation Board
Ms. Villa was not present at the meeting. Mayor Cerda read the Certificate of Recognition, and Mayor Cerda then thanked Ms. Villa for her service, and wished her well.
6.C. Boards & Commissions Presentation - Beautification Commission A video was presented informing our Council about the Beautification Commission. Paulette C. Francis, Chair of the Beautification Commission, then spoke about the commission and its upcoming events.
6.D. Gardena Events Video Presentation
The video presentation highlighted the Recreation and Human Services Department's current and future events.
7. PROCLAMATIONS
7.A. Women's History Month - March 2026 (To be proclaimed only) Women's History Month was proclaimed only.
7.B. "Fair Housing Month" April 2026 (To be accepted by members of the Fair Housing Foundation) Alicia Nguyen of the Fair Housing Foundation accepted the Proclamation, and thanked the Council for all their support.
8. APPOINTMENTS
There were no Appointments.
9. PUBLIC COMMENT ON CONSENT CALENDAR
There were no Public Comments.
10. CONSENT CALENDAR
10.A. Waiver of Reading in Full of All Ordinances Listed on this Agenda and that they be Read by Title Only CONTACT: CITY CLERK
10.B. Approval of Minutes - Regular Meeting of the City Council, March 10, 2026 CONTACT: CITY CLERK
10.C. Receive and File Minutes - Regular Meeting of the Planning and Environmental Quality Commission, January 20, 2026
CONTACT: COMMUNITY DEVELOPMENT
10.D. Approval of Warrants/Payroll Register, March 24, 2026 CONTACT: ADMINISTRATIVE SERVICES
10.E. Monthly Investment Report, February 2026
CONTACT: ADMINISTRATIVE SERVICES
10.F. Personnel Report P-2026-5 03-24-26
CONTACT: ADMINISTRATIVE SERVICES
10.G. Gardena General Plan Annual Progress Report
CONTACT: COMMUNITY DEVELOPMENT
A motion was made by Council Member Tanaka and was seconded by Council Member Francis to Approve the Consent Calendar Items. The motion passed 5-0 (Yea: Tanaka, Francis, Cerda, Henderson and Love).
11. PLANNING & ENVIRONMENTAL QUALITY COMMISSION ACTION SHEET
11.A. MARCH 17, 2026 MEETING - Cancelled
12. ORAL COMMUNICATIONS (LIMITED TO A 30-MINUTES PERIOD) 1) Andrea Simental, Community Library Manager of the Mayme Dear Library; came to give updates regarding the Mayme Dear and the Masao W. Satow Libraries.
2) Rachel Johnson, representative of the Holly Park Homeowners Association; came out to ask Council to re-evaluate the parking district on Van Ness Avenue between 132nd and 134th streets. 3) Hermina Singson Minami, resident; came to speak regarding a situation she experienced at El Camino College, asking Council for their support.
12.A. PUBLIC COMMENTS
Mayor Cerda asked City Clerk Semenza if any other public comments had been received by email. City Clerk Semenza stated that we received three public comments prior to the agenda getting posted, which have been attached to the agenda packet; and mentioned that one additional comment came in this morning. She continued to say that all of the comments were distributed to Council and made part of the record.
13. DEPARTMENTAL ITEMS - ADMINISTRATIVE SERVICES
13.A. Single Audit Report Required for Federally Funded Programs for Fiscal Year Ended June 30, 2025 This item was Received and Filed.
14. DEPARTMENTAL ITEMS - COMMUNITY DEVELOPMENT
No Items.
15. DEPARTMENTAL ITEMS - ELECTED & CITY MANAGER'S OFFICES No Items.
16. DEPARTMENTAL ITEMS - POLICE
No Items.
17. DEPARTMENTAL ITEMS - PUBLIC WORKS
17.A. Award Engineering Design Services Contract for the Local Street Improvements Fiscal Year 2025-2026 and 2026-2027 Projects for various locations, JN 553 & 571, to DMS Consultants, Inc. in the Amount of $147,460.
Additionally Approve a 10% Contingency in the amount of $15,000 and Budget Transfer of $1,130,000, SB1 Gast Tax Funds
City Manager Osorio presented the Staff Report.
Mayor Cerda asked if anyone had asked to speak on this item and if the Council had any questions or comments; there were no public speakers.
Questions and comments were made by Council Member Francis. City Manager Osorio and Public Works Director Allan Rigg answered all questions.
A motion was made by Mayor Pro Tem Henderson and was seconded by Council Member Francis to Award Engineering Design Services Contract, Approve Contingency and Budget Transfer. The motion passed 5-0 (Yea:
Henderson, Francis, Cerda, Tanaka and Love).
17.B. Award Engineering Design Services Contract for the Western Ave Street Improvement Project, Redondo Beach Blvd. to Rosecrans Ave., JN 556 to Cannon Corporation, in the Amount of $154,927 and Approve a 10% Contingency in the Amount of $16,000
City Manager Osorio presented the Staff Report.
Mayor Cerda asked if anyone had asked to speak on this item and if the Council had any questions or comments; there were no public speakers.
Questions and comments were made by Council Members Francis and Love. City Manager Osorio and Public Works Director Allan Rigg answered all questions.
A motion was made by Council Member Tanaka and was seconded by Mayor Pro Tem Henderson to Award Engineering Design Services Contract, and Approve Contingency. The motion passed 5-0 (Yea: Tanaka, Henderson, Cerda, Francis and Love).
18. DEPARTMENTAL ITEMS - RECREATION & HUMAN SERVICES
18.A. RESOLUTION NO. 6732, Authorizing the Acceptance of a Home-American Rescue Plan (HOME-ARP) Grant and the Execution of a Standard Agreement and Related Documents with the California Department of Housing and Community Development
City Manager Osorio presented the Staff Report.
Mayor Cerda asked if anyone had asked to speak on this item and if the Council had any questions or comments; there were no public speakers.
Questions and comments were made by Council Members Francis, Love and Tanaka. City Manager Osorio and Acting Recreation and Human Services Director Nikki Sweeney answered all questions.
A motion was made by Council Member Tanaka and was seconded by Council Member Francis to Adopt Resolution No. 6732. The motion passed 5-0 (Yea: Tanaka, Francis, Cerda, Henderson and Love).
19. DEPARTMENTAL ITEMS - TRANSPORTATION
No Items.
20. COUNCIL ITEMS
No Items.
21. COUNCIL DIRECTIVES
None.
22. CITY MANAGER REMARKS RE: DIRECTIVES / COUNCIL ITEMS City Manager Osorio stated he had no updates.
23. COUNCIL REMARKS
1) COUNCIL MEMBER FRANCIS – Since the last Council Meeting, she attended the Los Angeles County Democratic Central Committee meeting; and the State of the City. She mentioned she got to see our new Aquatic and Senior Center, and stated its a really beautiful facility. She attended the Gardena Holly Park Community Association meeting and the Beautification Commission meeting. She encouraged everyone to tour the Gardena Willows Wetland Preserve. She thanked Ms. Simental from the Gardena Library for coming to the meeting and announcing all the library events. She also encouraged everyone to visit our public library. She mentioned Spring Break is coming up, so watch out for the kids when you are driving. She reminded everyone about the election coming up, and she encouraged everyone to vote; she also mentioned to take your young people with you so they can see you voting, and perhaps we can increase the number of votes in our City.
2) MAYOR PRO TEM HENDERSON – He attended our State of the City at the new Gardena Aquatic and Senior Center. He mentioned it's a beautiful facility, and thanked all the staff who helped put it on. He also thanked the community for coming out. Since the last meeting, he attended the Assembly District 66 Town Hall meeting at Torrance's City Hall. He mentioned he also did his regular business visits and community visits around town. He brought greetings on behalf of the council at the Los Angeles International Church of Christ Health Fair, where he educated the congregation on the Gardena boundaries. He asked Mr. City Manager to thank the Department Heads and Staff at the next staff meeting for being available for questions, comments and concerns. Lastly, he mentioned he wants us all to pray and support all our servicemen and women who are doing their job, whether they want to or not; they signed up for a job to do. Let’s pray that these folks come home.
3) COUNCIL MEMBER TANAKA – Since the last meeting, he attended the State of the City address by our Mayor showcasing our new Aquatic and Senior Center. He mentioned that this is an amazing, terrific place and that he hopes, once it opens, people will start coming. He thanked all the Department Heads, all the employees who came out and celebrated with us for this great accomplishment, and for a job well done and commented that we are the Emerald City. On St. Patrick's Day, he mentioned we were surprised by Gardena Valley Baptist Church members, who along with Pastor Daniel, showed up with some of the staff and went around to our departments giving out little thank-you gifts. He also mentioned that this church is so awesome that on cleanup days, half the church comes out and joins the Beautification Commission event. He mentioned he also attended Casino Night and the Kiwanis Club of Gardena fundraiser at the Lucky Lady. He stated that he also wants us all to pray for our military people and pray for this country. Lastly, he congratulated the City of Torrance on the unveiling of its Dodger mural on the hotel.
4) MAYOR CERDA – Since the last time she gave a report, she attended a District 2 meeting; presented a Certificate of Recognition for our resident, Mr. Reginald’s 70th birthday; she was a speaker at the Progressive Democratic Club, where she gave them a quick overview of some of the great things that the City of Gardena is doing. She attended her monthly CCGA meeting; her monthly Sanitation meeting; the California Contract Cities Association meeting; a meeting with Union Pacific Railroad; and the ICA conference in Santa Barbara. Since the last meeting, she met District Attorney Nathan Hochman, who came to visit our Police Department; she attended the County Sanitation personnel meeting; she presented a Certificate of Recognition to a resident who turned 100 years old. She also mentioned that she had her Town Hall meeting last month with Chief Fox; she also attended the Lions Club Love event; Serra High School’s Black History Month program; the JCI's Day of Remembrance; a Beauty Pageant in our City called the Miss Los Angeles County Scholarship Pageant; the Holly Park Homeowners meeting; and the 20th Anniversary of Sun Goddess Beauty Center, joined by her colleagues, Council members Francis and Love. She mentioned she attended the State of the City, and she thanked everybody for coming out; she wanted everyone to know that she just presented at the State of the City, but it's what all of you guys have done, and it's our community that is out here supporting us. She mentioned we got a couple of shoutouts from the KJLH radio station because of our mistress of ceremonies, Adai Lamar; she was so happy and intrigued to be here in our City, and she just fell in love with our pool. She attended the Good Neighbor Health Fair; she was also in the office with Council Member Tanaka as Gardena Valley Baptist Church members came by to present some of the gifts to us; they took a moment to pray for our City and for our City Council. She also attended the City of Carson's State of the City; she was the guest speaker for the 153rd Street Elementary School Career Day.; she attended the Spring Equinox Event; the Koi Show; and the Kiwanis Casino Poker Event. Lastly, she announced her next Town Hall meeting coming on Friday, March 27, 2026, at 6 p.m. at Matthew's Homestyle restaurant; this month, they will discuss all the upcoming developments, projects, and things that are happening here in the City of Gardena. 5) COUNCIL MEMBER LOVE – Since the last Council Meeting, she mentioned she had the pleasure of attending a walk through of the Pelican Manufacturing over in the City of Torrance. She thanked Torrance’s Chamber Director, Donna Duperron. She also attended the Gardena State of the City address; she mentioned raising her sons in the City of Gardena, she and her sons remember when they would go swim at Primm Pool, and so to see the transformation, they were all amazed. She stated she hopes to get her grandchildren in the same water. She thanked the staff for a great job they all did, and Public Works for the work that they did to hurry up and get that facility ready for that event. She also attended Carson's State of the City address, and they are raising the bar on us, and we have some catching up to do. She attended the Girl Boss Day and the Koi Show. She also attended Councilwoman France’s Financial Literacy event; the Spring Equinox Event, and she thanked Cheryl Sherman for her dedication to the Willows. She thanked Pastor Higgins. She also attended the District 4 meeting at GJJIP. She thanked Gardena Valley Baptist Church for the gift. She attended the Holly Park Homeowners Association meeting. She commented that we all have to be respectful of other people's opinions; you can respectfully agree to disagree, but you should never scream, holler, or be disrespectful in a meeting; be considerate, respectful, mindful of our neighbors, and watch out for our neighbors. She mentioned she agrees with her colleagues about praying for our military; being a mother of a son who's in the military, she not only wants to pray for our military that's being deployed, but also for our military that's refusing deployment; they signed up to serve our country and go to war, but to go to war that was ordered by Congress.
24. ANNOUNCEMENT(S)
1) Paper Shredding Event, Saturday, March 28, 2026 from 8:00 a.m. to 12:00 p.m. at the City Hall Complex; 2) Willows Week of Service, Monday, March 30, 2026 to Friday, April 3, 2026 from 8:00 a.m. to 11:00 a.m. at the City of Gardena's Willows Wetland Preserve;
3) Hoppin Good Time & Egg Hunt, Saturday, April 4, 2026 from 10:00 a.m. to 12:00 p.m. at Rowley Park; 4) Bunny Brunch Buffet & Egg Hunt, Saturday, April 4, 2026 from 8:30 a.m. to 11:00 a.m. at the Nakaoka Community Center;
5) Shine Gardena, Graffiti Clean-up Event, Saturday, April 11, 2026 from 8:00 a.m. to 10:30 a.m. and Saturday, May 2, 2026 from 8:00 a.m. to 10:00 a.m. starting at Gardena Public Works Department; 6) 2026 Youth Chess Tournament, Saturday, April 18, 2026 from 9:00 a.m. to 3:00 p.m. at the Nakaoka Community Center; 7) Compost Giveaway, Saturday, April 18, 2026 and Saturday, May 30, 2026 from 8:00 a.m. to 12:00 p.m. at Rowley Park; and
8) Spring Community Yard Sale, Saturday, April 25, 2026 from 7:00 a.m. to 1:00 p.m. at Mas Fukai Park.
25. REMEMBERANCES
Mr. Richard Gomez, 82 years of age and a member of AADAP; a Gardena resident, and was once a Block Captain in our City; a GDAAP Chairperson, as well as the President of the El Camino Lions Club.
26. ADJOURNMENT
At 9:18 p.m., Mayor Cerda adjourned the Gardena City Council Meeting to the Closed Session portion of the City Council Meeting at 7:00 p.m., and the Regular City Council Meeting at 7:30 p.m. on Tuesday, April 14, 2026.
APPROVED:
MINA SEMENZA
City Clerk of the City of Gardena and
Ex-officio Clerk of the Council
___________________________________
Tasha Cerda, Mayor
By:__________________________________
Becky Romero, Deputy City Clerk
MINUTES
Regular PEQC Meeting of the
Planning and Environmental Quality Commission
Tuesday, February 17, 2026
The Regular PEQC Meeting Notice and Agenda of the Planning and Environmental Quality Commission of the City of Gardena, California, was called to order on February 17, 2026, at 7:00PM, in the Council Chambers at 1700 W. 162nd Street, Gardena, California.
1. CALL MEETING TO ORDER
The meeting was called to order at 7:10 PM.
2. PLEDGE OF ALLEGIANCE
Commissioner Jules Kanhan led the Pledge of Allegiance.
3. ROLL CALL
Present: Chair Ronald Wright-Scherr; Vice-Chair Jules Kanhan; Commissioner Steve Sherman; and Commissioner Deryl Henderson. Employees present: Director of Community Development Greg Tsujiuchi; Assistant Director of Community Development Jo-Anne Burns; and Planning Assistant Dayana Nava.
Commissioners Stephen P. Langley was away on an excused absence.
4. APPROVAL OF MINUTES
4.A. Planning and Environmental Quality Commission Approval of Minutes for January 20, 2026.
MOTION: A motion was made by Vice-Chair Kanhan and seconded by Commissioner Sherman to approve the minutes of the meeting held on January 20, 2026.
The motion passed by a vote of 4-0 (Yea: Kanhan, Sherman, Henderson and Wright-Scherr; Noes: None)
Absent: Langley
5. ORAL COMMUNICATIONS
Administrative Analyst I, Georgina Placido, noted that no members of the public were present. (Public speaker Michelle Walker arrived during Item 7.A and was given the opportunity to address the Commission under Item
5. Oral Communications):
Chair Wright-Scherr announced that a few members of the public were in attendance and wished to speak during Item 5.
Oral Communications segment. As a result, he decided to open the floor for public comments.
Public Speaker: Michelle Walker, a resident, expressed her concerns regarding the lack of street lights and issues with illegal dumping around Denker and 144th Street. She inquired about how street lights could be added and how to implement no dumping signs in that area.
Director of Community Development Greg Tsujiuchi informed Ms. Walker that her request fell outside the Planning Commission's jurisdiction and suggested that her concerns would be better addressed at the City Council Meeting. He encouraged her to attend the next meeting and assured her that he would pass on her concerns to be included in the official record.
Chair Wright-Scherr then continued with the meeting.
6. PUBLIC HEARING ITEMS
Chair Wright-Scherr announced that there were no Public Hearing items agendized.
7. OTHER ITEMS
7.A. Los Angeles County Sanitation District Presentation Director of Community Development Greg Tsujiuchi and Assistant Director of Community Development Jo-Anne Burns were present and available to answer any questions.
Ms. Burns introduced Genesis Rodriguez, Public Affairs Specialist from the Los Angeles County Sanitation District.
Ms. Rodriguez, presented the PowerPoint Presentation for "Sanitation Districts: Who We Are and What We Do".
Ms. Rodriguez provided an overview and explained in detail the Los Angeles County Sanitation District's functions; discussing the Sanitation Districts Act; the air pollution problem in Los Angeles County, and the amendment to the Sanitation Districts Act; and the Los Angeles County Sanitation Districts Mission to protect public health and the environment through innovative and cost-effective wastewater sand solid waste management and in doing so, convert waste into resources such as recycled water, energy and recycled materials. She distinguished between local and district sewers and highlighted the 1,400 miles of trunk sewers, displaying images of the sewers on the screen.
Ms. Rodriguez explained the operations of a Wastewater Treatment Plant, noting that clean water is produced in 10 to 12 hours. She provided examples of how recycled water augments the local water supply. Additionally, she discussed the value of solids, which produce biogas within 15 days, and how biosolids are used to create compost.
Ms. Rodriguez explained the role of landfills in disposing of trash and the energy generated from capturing methane, which is transformed into green energy. She emphasized the importance of recycling, particularly food waste recycling, and detailed how green energy is produced from both wastewater and solid waste. She also provided information on the Pure Water Southern California Program and its operations.
Ms. Rodriguez highlighted the A.K. Warren Water Resources Facility in the City of Carson, which includes food waste recycling, green energy production, biosolid management, an Advanced Water Purification Facility, the Napolitano Innovation Center, and plans for a Workforce Training Center, which were also displayed on the screen.
To conclude, Ms. Rodriguez summarized the educational resources and tours available to schools and informed the Commission that she was available to answer any questions.
Questions and comments were made by Director of Community Development Greg Tsujiuchi, Commissioner Henderson, Chair Wright-Scherr and Commissioner Sherman. Ms. Rodriguez answered all questions.
Chair Wright-Scherr expressed gratitude to Ms. Rodriguez for her presentation, and there were no further questions or comments made by any member of the Commission.
7.B. Consideration of Outdoor Dining Regulations
Director of Community Development Greg Tsujiuchi was present to answer any questions.
Assistant Director of Community Development Jo-Anne Burns presented the staff report, informing the Commission of the consideration of outdoor dining regulations.
Ms. Burns provided background information regarding the last discussion of outdoor dining by the Planning Commission, which took place in study sessions held in June and August of 2023. She aimed to revisit the topic to ensure whether the Planning Commission still wished to move forward and for staff to prepare an ordinance for the Commission's consideration and recommendation to the City Council.
Ms. Burns outlined the areas where outdoor dining is allowed and where restaurants are permitted, displaying a map on the screen. She provided detailed information on the discussions and consensus from June 6 and August 15, 2023, including the current parking requirements and options for outdoor dining.
Ms. Burns indicated that staff would like the Commission to provide direction on whether they would like an ordinance drafted that allows outdoor dining in all zones that permit restaurants. She informed the Commissioners that she was available to answer any questions.
Chair Wright-Scherr, Commissioner Henderson, Vice-Chair Kanhan, and Director Tsujiuchi all asked questions and provided comments during the discussion.
Ms. Burns informed the Commission that staff could draft standards requiring that a restaurant or shopping center would not be allowed to remove any parking spaces unless it is over-parked.
Director Tsujiuchi emphasized that a key issue from the initial discussion was ensuring sufficient parking for outdoor dining, as it continues to be a concern given that not everyone is going to stop using their cars. He noted that while creating standards for new developments is straightforward, the challenge lies in accommodating existing restaurants that were not designed for outdoor dining. He briefly discussed common areas and outdoor dining spaces in shopping centers, along with the relationships between tenants and landlords. Vice-Chair Kanhan pointed out that changes in tenants and businesses may also pose issues.
Commissioner Henderson requested that the parking information be displayed, using it as an example to illustrate his perspective on the parking requirements. Vice-Chair Kanhan added his own example, prompting further comments from Director Tsujiuchi and explanations from Commissioner Henderson, with Chair Wright-Scherr joining the discussion.
Ms. Burns notified the Commission that she would prepare draft language and options for their review, allowing time to discuss whether they agree with the draft, wish to include it in the ordinance, or propose revisions to the language. All Commissioners expressed their agreement.
There were no additional questions or comments made by any member of the Commission.
8. COMMUNITY DEVELOPMENT DIRECTOR'S REPORT
Director of Community Development Greg Tsujiuchi, announced upcoming city events.
1. City Council called for review: CUP No. 9-04 at 2169 W. Redondo Beach Boulevard for Target onsite instructional tasting and sales of beer, wine, and distilled spirits; scheduled for March 10, 2026, City Council Meeting.
2. City Council scheduled items for the March 10, 2026, City Council Meeting - Consideration of Ordinance No, 1890 (Review and Standards for Mechanical/Robotic Parking and On-site Parking Standards for Commercial Uses on Gardena Blvd. Between Normandie Ave and Vermont Ave.)
3. Reminder, 2026 Planning Commissioners Academy, on March 11-13, 2026.
4. Save the Date - 2026 State of the City, Thursday, March 12, 2026. Stay tuned for more information.
5. Funeral Services, February 28, 2026, at 10:30 a.m. for the late Nancy Langley, wife of Commissioner Stephen Langley.
9. PLANNING & ENVIRONMENTAL QUALITY COMMISSIONERS' REPORTS
1. VICE-CHAIR KANHAN - No items to report.
2. COMMISSIONER HENDERSON - He shared that his daughter was appointed to the City of Gardena Youth Commission.
3. CHAIR WRIGHT-SCHERR - No items to report.
4. COMMISSIONER SHERMAN - No items to report.
MEMORANDUM
TO: Honorable Mayor and City Council
FROM: City Treasurer’s Office
DATE: April 9, 2026
SUBJECT: WARRANT REGISTER
PAYROLL REGISTER
April 14, 2026 TOTAL WARRANTS ISSUED: $11,973,465.98
Wire Transfer: 13227-13244
Prepay: 184501-184507
Check Numbers: 184508-184702
Checks Voided:
Total Pages of Register: 24
April 3, 2026 TOTAL PAYROLL ISSUED: $1,924,156.01
__________________________________
for Guy Mato, City Treasurer
04/09/2026
Voucher List
CITY OF GARDENA
1 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 13227 3/12/2026 112326 LWP CLAIMS SOLUTIONS INC. 031126 WORKERS' COMP CLAIMS 54,240.37 Total : 54,240.37
13228 3/16/2026 101641 CALPERS 100000018224554 MISC GROUP UAL PAYMENT - MARCH 2026 82,034.00 Total : 82,034.00
13229 3/16/2026 101641 CALPERS 100000018224565 SAFETY CLASSIC UAL PAYMENT - MARCH 2026 137,246.75 Total : 137,246.75
13230 3/16/2026 101641 CALPERS 100000018224569 SAFETY PEPRA UAL PAYMENT - MARCH 2026 2,729.92 Total : 2,729.92
13231 3/17/2026 111374 LINCOLN NATIONAL LIFE, INSURANCE COMPANY4942517117 023-01627 LIFE INSURANCE GRP PLANS - MARCH 2026 3,898.50 Total : 3,898.50
13232 3/18/2026 113747 DELTA DENTAL OF CALIFORNIA BE006973825C DENTAL INSURANCE CLAIMS 10,888.10 Total : 10,888.10
13233 3/19/2026 112441 ANTHEM BLUE CROSS LIFE &, HEALTH INSURANCE COMPANY365997992158 HEALTH INSURANCE CLAIMS 16,747.63 Total : 16,747.63
13234 3/19/2026 419630 U.S. BANK 3149583 TAXABLE POB SERIES 2020 6,448,132.99 Total : 6,448,132.99
13235 3/19/2026 619005 GAS COMPANY, THE 035-746-60944 030626 CNG FUEL 46,452.43 Total : 46,452.43
13236 3/12/2026 112326 LWP CLAIMS SOLUTIONS INC. 031226 WORKERS' COMP CLAIMS 100,000.00 Total : 100,000.00
13237 3/24/2026 112326 LWP CLAIMS SOLUTIONS INC. 032426 WORKERS' COMP CLAIMS 68,391.63 Total : 68,391.63
13238 3/24/2026 112401 PINNACLE CLAIMS MANAGEMENT INC 031826 HEALTH INSURANCE CLAIMS 14,505.75 Total : 14,505.75
13239 3/25/2026 113747 DELTA DENTAL OF CALIFORNIA BE006990707C DENTAL INSURANCE CLAIMS 11,098.50 1Page:
04/09/2026
Voucher List
CITY OF GARDENA
2 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 11,098.50 13239 3/25/2026 113747 113747 DELTA DENTAL OF CALIFORNIA 13240 3/26/2026 112441 ANTHEM BLUE CROSS LIFE &, HEALTH INSURANCE COMPANY365997831987 HEALTH INSURANCE CLAIMS 21,764.03 Total : 21,764.03
13241 3/25/2026 112326 LWP CLAIMS SOLUTIONS INC. 032526 WORKERS' COMP CLAIMS 100,000.00 Total : 100,000.00
13242 3/26/2026 112401 PINNACLE CLAIMS MANAGEMENT INC 032626 HEALTH INSURANCE CLAIMS 88,139.73 Total : 88,139.73
13243 3/31/2026 111016 KAISER FOUNDATION HEALTH PLAN APRIL 2026 HEALTH INSURANCE 437,408.36 Total : 437,408.36
13244 4/1/2026 112326 LWP CLAIMS SOLUTIONS INC. 040126 WORKERS' COMP CLAIMS 14,506.67 Total : 14,506.67
184501 3/30/2026 105900 KONECRANES, INC. 163085661 037-10461 PREVENTATIVE MAINT & INSPECTION OF CRANE 525.00 Total : 525.00
184502 4/3/2026 619003 SOUTHERN CALIFORNIA EDISON 031926 LIGHT & POWER 24,692.32 Total : 24,692.32
184503 4/8/2026 112173 PEREZ, NATHALIE 04/13-04/16. 19TH ANNUAL FTA DRUG AND ALCOHOL 150.00 Total : 150.00
184504 4/8/2026 106129 FEDEX 9-231-03144 SHIPPING SERVICES 14.63 Total : 14.63
184505 4/8/2026 106129 FEDEX 9-240-60061 SHIPPING SERVICES 185.05 Total : 185.05
184506 4/8/2026 106129 FEDEX 9-240-60062 SHIPPING SERVICES 14.63 Total : 14.63
184507 4/8/2026 106129 FEDEX 9-241-29040 SHIPPING SERVICES 39.22 Total : 39.22
184508 4/14/2026 106086 ABC COMPANIES 3968573 GTRANS AUTO PARTS 170.30 2Page:
04/09/2026
Voucher List
CITY OF GARDENA
3 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184508 4/14/2026 (Continued)106086 ABC COMPANIES
-170.30GTRANS AUTO PARTS3971438
510.91GTANS AUTO PARTS3975015
170.30GTRANS AUTO PARTS3978397
323.23GTRANS AUTO PARTS3978587
Total : 1,004.44
184509 4/14/2026 110161 ABRO, JENNIFER 02/24-02/27 2026 CSMFO ANNUAL CONFERENCE 989.19 Total : 989.19
184510 4/14/2026 110028 ACCENTURE INFRASTRUCTURE, AND CAPITAL PROJECTS, LLC38534 037-10228 PROJECT MGMT SUPPORT - ELECTRIFICATION P 2,160.00 Total : 2,160.00
184511 4/14/2026 112691 ADVANCE TRUCK PAINTING, INC. 35258 BUS SERVICE & REPAIR - #2303 4,492.50 Total : 4,492.50
184512 4/14/2026 101748 AFTERMARKET PARTS COMPANY LLC, THE 84187932 037-10469 GTRANS AUTO PARTS 417.87 Total : 417.87
184513 4/14/2026 113561 AIELLO, ANGELA RA-GERMANY 04/2026 RENTAL ASSISTANCE PROGRAM 925.00 Total : 925.00
184514 4/14/2026 113329 AIR AND LUBE SYSTEMS INC. 58856 GTRANS MAINT SERVICE 3,529.86 3,360.88GTRANS MAINT SERVICE58857
Total : 6,890.74
184515 4/14/2026 100925 AMERICAN MOVING PARTS 01A179905 GTRANS AUTO PARTS 561.78 Total : 561.78
184516 4/14/2026 107939 AMS.NET 0099492 023-01663 AQUATIC & SENIOR CENTER NETWORK EQUIPMEN 818.35 023-01663 837.75AQUATIC & SENIOR CENTER NETWORK EQUIPMEN0099507 023-01661 30,872.00AQUATIC & SENIOR CENTER CABLE INSTALLATI0099508 Total : 32,528.10
184517 4/14/2026 101628 AQUA-FLO SUPPLY SI2710094 PARK MAINT SUPPLIES 126.95
51.02PARK MAINT SUPPLIESSI2717695
Total : 177.97
3Page:
04/09/2026
Voucher List
CITY OF GARDENA
4 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184518 4/14/2026 105293 ARC DOCUMENT SOLUTIONS, LLC 13066616 REPROGRAPHIC SERVICES - RFP CITYWIDE 41.37
41.37REPROGRAPHIC SERVICES - RFP CITYWIDE13066617
Total : 82.74
184519 4/14/2026 112640 ARELLANO ASSOCIATES, LLC 23620 037-10284 MICROTRANSIT SERVICE COMMUNITY OUTREACH 713.96 037-10284 3,298.53MICROTRANSIT SERVICE COMMUNITY OUTREACH23731 Total : 4,012.49
184520 4/14/2026 101459 ASBURY ENVIRONMENTAL SERVICES I500-01350832 HAZARDOUS WASTE DISPOSAL SERVICES 260.00 472.19HAZARDOUS WASTE DISPOSAL SERVICESI500-01350833
Total : 732.19
184521 4/14/2026 104687 AT&T 24953125 TELEPHONE 3,884.68 Total : 3,884.68
184522 4/14/2026 104687 AT&T 24955932 TELEPHONE 218.71 Total : 218.71
184523 4/14/2026 100474 AT&T LONG DISTANCE 031226 TELEPHONE 73.34 Total : 73.34
184524 4/14/2026 100964 AT&T MOBILITY 287275680401X040126 PD CELL PHONE ACCT #287275680401 148.43 Total : 148.43
184525 4/14/2026 112942 AWP SAFETY 40019575 STREET SIGN - 169TH ST 106.55 619.20SIGNS - 40"X55" 'WELCOME TO GARDENA'40019689
2,184.36SIGNS - 24"X24" 'NO DUMPING ALLOWED'40019691
141.66SIGNS - 12"X6 HIP 1160 (W/Y)40019692
194.49SIGNS - 12"X24" NO PARKING HANDICAP40019769
1,432.63SIGNS - 18"X24" STREET SWEEPING40019770
381.42SIGN - 36"X10" WAYFINDING SIGNS40019811
63.57SIGNS - WAYFINDER SIGN 36"X10" CIVIC CEN90019690
Total : 5,123.88
184526 4/14/2026 110686 AZTECH ELEVATOR COMPANY AZ20860 037-10452 ELEVATOR MAINTENANCE - GTRANS 83.33 037-10452 285.00ELEVATOR MAINTENANCE - GTRANSAZ20862
Total : 368.33
4Page:
04/09/2026
Voucher List
CITY OF GARDENA
5 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184527 4/14/2026 102054 BAVCO 380294 (10) BACKFLOW VALVE INSPECTIONS 650.00 Total : 650.00
184528 4/14/2026 102400 BAYSIDE MEDICAL CENTER 00189728 PRE-EMPLOYMENT PHYSICALS 310.00 Total : 310.00
184529 4/14/2026 102035 BD WHITE TOP SOIL CO., INC. 94233 PARK MAINT SUPPLIES 198.90
66.30PARK MAINT SUPPLIES94235
Total : 265.20
184530 4/14/2026 103641 BECNEL UNIFORMS 90913 BUS UNIFORM SUPPLIES 758.92 602.21BUS UNIFORM SUPPLIES90914
37.59BUS UNIFORM SUPPLIES91085
1,266.69BUS UNIFORM SUPPLIES91117
27.71BUS UNIFORM SUPPLIES91195
Total : 2,693.12
184531 4/14/2026 109037 BEEMAN, RAYMOND 01/21-01/23 2026 LCW ANNUAL EMPLOYMENT LAW CONFERENC 201.88 225.002026 CSMFO ANNUAL CONFERENCE02/24-02/27
Total : 426.88
184532 4/14/2026 102135 BEHRENDS, KENT 403 AQUATIC CENTER NETWORK SETUP 2,187.50 Total : 2,187.50
184533 4/14/2026 113662 BIG BELLY SOLAR LLC 62067 GTRANS FACILITY SUPPLIES 427.21 Total : 427.21
184534 4/14/2026 113412 BLUETRITON BRANDS INC 06C8710038701 DRINKING WATER FILTRATION SYSTEM 60.64 Total : 60.64
184535 4/14/2026 111902 BPR CONSULTING GROUP LLC 4016 032-00231 CONSULTING SERVICES - FEBRUARY 2026 28,885.77 Total : 28,885.77
184536 4/14/2026 112674 BUCK SIGNS & GRAPHICS INC 2979 GTRANS BUS DECAL SUPPLIES 1,139.70 265.20GTRANS BUS DECAL SUPPLIES2984
Total : 1,404.90
184537 4/14/2026 105008 CALIFORNIA BUILDING STANDARDS, COMMISSIONJAN-MAR 2026 BUILDING STANDARDS ADMIN SPECIAL 714.50 5Page:
04/09/2026
Voucher List
CITY OF GARDENA
6 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 714.50 184537 4/14/2026 105008 105008 CALIFORNIA BUILDING STANDARDS, COMMISSION 184538 4/14/2026 113787 CALZADILLA, MARCO A. PERMIT #50025-0159 PERMIT DEPOSIT REFUND - 2027 W. 152ND ST 5,000.00 Total : 5,000.00
184539 4/14/2026 110538 CANNON COMPANY 95168 024-00821 RBB ARTERIAL IMPROVEMENT PROJECT, JN945 2,354.00 024-00927 1,528.75ARTESIA BLVD. STREET IMPROVEMENT, JN 93595226 024-00821 13,209.13RBB ARTERIAL IMPROVEMENT PROJECT, JN94595459 024-00927 156.00ARTESIA BLVD. STREET IMPROVEMENT, JN 93595465 Total : 17,247.88
184540 4/14/2026 113737 CATALYST CONSULTING 036 034-00733 EXECUTIVE STAFF ASSESSMENT & OPERATIONAL 15,750.00 Total : 15,750.00
184541 4/14/2026 303331 CDTFA FEBRUARY 2026 DIESEL FUEL EXEMPT BUS 2.00 Total : 2.00
184542 4/14/2026 104126 CHARTER COMMUNICATIONS 232843901032126 023-01640 SPECTRUM FIBER PEG CHANNELS 1,080.00 Total : 1,080.00
184543 4/14/2026 111612 CHARTER COMMUNICATIONS PERMIT #18692 PERMIT DEPOSIT REFUND - 13007 S WESTERN 1,000.00 Total : 1,000.00
184544 4/14/2026 112352 CIRCLE, THE 233531 TOSHIBA 3525AC COPIER USAGE - CLERK 118.60 164.54TOSHIBA 3525AC COPIER USAGE - CM233532
168.58TOSHIBA 3525AC COPIER USAGE - HR233533
114.87TOSHIBA 3525AC COPIER USAGE - ADMIN233534
67.36TOSHIBA 3525AC COPIER USAGE - CDD233535
256.08TOSHIBA 3525AC COPIER USAGE - CDD233536
689.83TOSHIBA 5525AC COPIER USAGE - DB233537
12.32TOSHIBA 908 COPIER USAGE - PRINT SHOP233538
239.62TOSHIBA 6527AC COPIER USAGE - PRINT SHOP233539
29.46TOSHIBA 3525AC COPIER USAGE - PW ADMIN233540
48.26TOSHIBA 3525AC COPIER USAGE - PW ADMIN233541
213.76TOSHIBA 3525AC COPIER USAGE - GTRANS DIS233542
209.56TOSHIBA 3525AC COPIER USAGE - NCC233543
1.81TOSHIBA 3525AC COPIER USAGE - HS233544
125.78TOSHIBA 3525AC COPIER USAGE - HS233545
6Page:
04/09/2026
Voucher List
CITY OF GARDENA
7 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184544 4/14/2026 (Continued)112352 CIRCLE, THE
44.38TOSHIBA 3525AC COPIER USAGE - RECORDS233546
12.92TOSHIBA 3525AC COPIER USAGE - CHIEF233547
75.04TOSHIBA 3525AC COPIER USAGE - PD ADMIN233548
137.95TOSHIBA 3525AC COPIER USAGE - WATCH CMDR233549
108.11TOSHIBA 3525AC COPIER USAGE - SR BUREAU233550
174.83TOSHIBA 6525AC COPIER USAGE - RECORDS233551
200.11TOSHIBA 3525AC COPIER USAGE - GTRANS ADM233552
37.70TOSHIBA 3525AC COPIER USAGE - GTRANS DIS233553
Total : 3,251.47
184545 4/14/2026 111534 CLEAN ENERGY CE12835860 037-10478 CNG O&E SERVICES - FEBRUARY 2026 12,917.00 Total : 12,917.00
184546 4/14/2026 113784 CONNER, SABRINA E DR #26-1044 RETURN MONEY BOOKED AS EVIDENCE 44,732.61 Total : 44,732.61
184547 4/14/2026 102388 COPYLAND, INC. 93077 037-10457 GTRANS - 8.5"X11" EMPLOYEE ABSENCE FORM 414.23 037-10457 1,976.29GTRANS - 5.5"X8.5" STATEMENT OF SCHEDULE93173 Total : 2,390.52
184548 4/14/2026 102791 CPAC, INC. 1302591 023-01668 AQUATIC & SENIOR CENTER COMPUTERS 32,380.96 Total : 32,380.96
184549 4/14/2026 103512 CRENSHAW LUMBER CO. 30232 SIGNS/SIGNALS SUPPLIES 178.92 Total : 178.92
184550 4/14/2026 109005 CRESPO, ERNIE 02/26-02/27 2026 CSMFO ANNUAL CONFERENCE 245.74 Total : 245.74
184551 4/14/2026 103353 CRM COMPANY, LLC. LA29629 SCRAP TIRE DISPOSAL FEE 69.50
69.50SCRAP TIRE DISPOSAL FEELA29639
69.50SCRAP TIRE DISPOSAL FEELA29682
124.50SCRAP TIRE DISPOSAL FEELA29703
Total : 333.00
184552 4/14/2026 106193 CUMMINS SALES AND SERVICE X4-260393305 037-10470 GTRANS AUTO PARTS 745.81 7Page:
04/09/2026
Voucher List
CITY OF GARDENA
8 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 745.81 184552 4/14/2026 106193 106193 CUMMINS SALES AND SERVICE 184553 4/14/2026 110319 CWE DIRECTOR F26153 024-01157 CALRECYCLE USED OIL & BEVERAGE PROGRAM 1,652.23 Total : 1,652.23
184554 4/14/2026 104736 D&R OFFICE WORKS, INC. 138897 037-10507 GTRANS BUILDING A FURNITURE 1,300.00 4,859.37REC OFFICE FURNITURE138940
Total : 6,159.37
184555 4/14/2026 113099 DASH CONSTRUCTION COMPANY, INC 05 024-01149 ARTESIA BLVD STREET IMPROVEMENT, JN935 416,710.93 Total : 416,710.93
184556 4/14/2026 312558 DEPARTMENT OF ANIMAL CARE, & CONTROLFEBRUARY 2026 MONTHLY ANIMAL SERVICES - FEBRUARY 2026 123.52 Total : 123.52
184557 4/14/2026 104310 DEPARTMENT OF CONSERVATION JAN-MAR 2026 STRONG MOTION INSTRUMENTATION & SEISMIC 2,622.78 Total : 2,622.78
184558 4/14/2026 312117 DEPARTMENT OF WATER & POWER 032626 LIGHT & POWER 118.34
88.00LIGHT & POWER040126
Total : 206.34
184559 4/14/2026 113292 DIAZ, JENNIPHER 02/22-02/25 2026 APTA MCX WORKSHOP 208.13 Total : 208.13
184560 4/14/2026 107268 DIVISION OF THE STATE, ARCHITECT JUL-DEC 2025 SB 1186 DISABILITY ACCESS & EDUCATION 1,450.99 Total : 1,450.99
184561 4/14/2026 113586 DRASIN, CORINNE RA-LOPEZ 04/2026 RENTAL ASSISTANCE PROGRAM 665.60 Total : 665.60
184562 4/14/2026 113664 DREAMERS LOVE COMPANY 032626 020-00069 SOCIAL MEDIA STRATEGY 7,000.00 Total : 7,000.00
184563 4/14/2026 110534 EL DORADO NATIONAL 90895541 GTRANS BUS VEHICLE SUPPLIES 252.15 609.82GTRANS BUS VEHICLE SUPPLIES90895829
148.04GTRANS BUS VEHICLE SUPPLIES90895899
81.95GTRANS BUS VEHICLE SUPPLIES90895931
8Page:
04/09/2026
Voucher List
CITY OF GARDENA
9 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184563 4/14/2026 (Continued)110534 EL DORADO NATIONAL
799.04GTRANS BUS VEHICLE SUPPLIES90895972
614.86GTRANS BUS VEHICLE SUPPLIES90896220
614.86GTRANS BUS VEHICLE SUPPLIES90896222
Total : 3,120.72
184564 4/14/2026 113793 EMERGENCY SERVICES, ADVISORS, INC. ESA-1016 020-00074 FIRE SERVICE AGREEMENT EVALUATION 11,837.50 020-00074 18,667.15FIRE SERVICE AGREEMENT EVALUATIONESA-1021 020-00074 7,250.00FIRE SERVICE AGREEMENT EVALUATIONESA-1024 Total : 37,754.65
184565 4/14/2026 105418 EMPIRE CLEANING SUPPLY S7616573 034-00713 CUSTODIAL SUPPLIES 271.58 Total : 271.58
184566 4/14/2026 105392 ENTENMANN-ROVIN COMPANY 0192346 PD UNIFORM SUPPLIES 414.48 Total : 414.48
184567 4/14/2026 106459 ENTERPRISE FM TRUST FBN5599157 023-01620 ENTERPRISE LEASE - APRIL 2026 - PD 9,455.64 023-01620 12,300.54ENTERPRISE LEASE - APRIL 2026FBN5599317 023-01572
023-01634
023-01638
037-10492
Total : 21,756.18
184568 4/14/2026 105650 EWING IRRIGATION PRODUCTS 29401188 PARK MAINT SUPPLIES 332.54 334.74PARK MAINT SUPPLIES29423696
235.96PARK MAINT SUPPLIES29602732
Total : 903.24
184569 4/14/2026 110320 EYEDEAL INTERIORS INC CG600213 HR OFFICE REMODEL 1,473.00 Total : 1,473.00
184570 4/14/2026 106129 FEDEX 9-212-51232 SHIPPING SERVICES 276.93 Total : 276.93
184571 4/14/2026 111415 FILTERBUY, INC BAFEC8C7-0046 GTRANS AUTO PARTS 960.63 9Page:
04/09/2026
Voucher List
CITY OF GARDENA
10 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 960.63 184571 4/14/2026 111415 111415 FILTERBUY, INC 184572 4/14/2026 106545 FLEETPRIDE, INC 133019458 STREET SWEEPER SUPPLIES 25.40 152.42STREET SWEEPER SUPPLIES133019582
Total : 177.82
184573 4/14/2026 112329 FM THOMAS AIR CONDITIONING INC 49268 024-01206 HVAC PREVENTATIVE MAINT SERVICES 21,146.50 Total : 21,146.50
184574 4/14/2026 106465 FOX FIRST AID & SAFETY INC 77588 STREET MAINT SUPPLIES 15.47 629.85PARK MAINT SUPPLIES77605
Total : 645.32
184575 4/14/2026 112566 GALLS, LLC 034503437 PD UNIFORM SUPPLIES 1,011.26 Total : 1,011.26
184576 4/14/2026 107011 GARDENA VALLEY NEWS 00161685 SUMMARY OF ORDINANCE NO. 1888 - 168.00 154.00NOTICE OF PUBLIC HEARING - ORDINANCE00161789
Total : 322.00
184577 4/14/2026 107034 GARDENA WELDING SUPPLY CO INC. 95 133597 GTRANS MAINT SUPPLIES 35.91 185.09GTRANS MAINT SUPPLIES95 133598
Total : 221.00
184578 4/14/2026 619005 GAS COMPANY, THE 040226 GAS 5,488.77 Total : 5,488.77
184579 4/14/2026 619005 GAS COMPANY, THE 058-854-91703 040726 CNG FUEL 1,300.89 Total : 1,300.89
184580 4/14/2026 106470 GILLIG LLC 41410972 037-10409 GTRANS AUTO PARTS 4,496.91 037-10471 26.52GTRANS AUTO PARTS41411596
037-10471 45.74GTRANS AUTO PARTS41411597
037-10471 1,746.61GTRANS AUTO PARTS41412727
037-10471 261.89GTRANS AUTO PARTS41413908
037-10471 261.89GTRANS AUTO PARTS41415055
037-10409 1,913.60GTRANS AUTO PARTS41415056
10Page:
04/09/2026
Voucher List
CITY OF GARDENA
11 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 8,753.16 184580 4/14/2026 106470 106470 GILLIG LLC 184581 4/14/2026 112692 GOCANVAS INV00225022 MONTHLY SUBSCRIPTION - APRIL 2026 1,350.00 Total : 1,350.00
184582 4/14/2026 102542 GOLD COAST K9 GARDENAPD-15 POLICE K9 BOARDING SERVICES 200.00 Total : 200.00
184583 4/14/2026 619004 GOLDEN STATE WATER CO. 032326 WATER 29,463.21 Total : 29,463.21
184584 4/14/2026 110887 GONZALEZ, GABRIEL GEPCO 2025 GEPCO LOAN 2,000.00 Total : 2,000.00
184585 4/14/2026 107513 GRAINGER 9826964232 037-10459 GTRANS MAINT SUPPLIES 223.06 3,049.78GTRANS MAINT SUPPLIES9833782460
037-10459 321.46GTRANS FACILITY SUPPLIES9838663467
87.50GTRANS MAINT SUPPLIES9840463583
037-10459 224.67GTRANS MAINT SUPPLIES9848239936
-3,049.78GTRANS MAINT SUPPLIES9848900685
62.25STREET MAINT SUPPLIES9856867602
Total : 918.94
184586 4/14/2026 112374 GRIFFIN STRUCTURES, INC. GSI-GCASC-38 024-00910 AQUATIC & SENIOR CENTER, JN978 33,652.43 Total : 33,652.43
184587 4/14/2026 113760 H & H JOBBING INC. GARDENA MARCH 12TH. AQUATIC UNIFORM SUPPLIES 261.69 Total : 261.69
184588 4/14/2026 111549 HF & H CONSULTANTS, LLC 9723017 024-01096 CONSULTING SERVICES - SOLID WASTE 12,423.75 Total : 12,423.75
184589 4/14/2026 111549 HF & H CONSULTANTS, LLC 9723019 024-01185 SB1383 GRANT AUDIT ASSISTANCE 3,866.25 Total : 3,866.25
184590 4/14/2026 108324 HI-LINE INC. 3240498 PW MAINT SUPPLIES 187.69 Total : 187.69
11Page:
04/09/2026
Voucher List
CITY OF GARDENA
12 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184591 4/14/2026 110371 HINDERLITER DE LLAMAS, & ASSOCIATES SIN060503 CONTRACT SERVICES - TRANSACTION TAX 1,013.13 023-01629 2,430.12CONTRACT SERVICES - SALES TAXSIN060923 Total : 3,443.25
184592 4/14/2026 108434 HOME DEPOT CREDIT SERVICES 0541732 REC PROGRAM SUPPLIES 124.22 165.05REC PROGRAM SUPPLIES1540395
7.71CUSTODIAL SUPPLIES1901344
12.69PD PROGRAM SUPPLIES2900623
27.40REC PROGRAM SUPPLIES3542776
20.42CUSTODIAL SUPPLIES4211237
125.60PARK MAINT SUPPLIES4804934
164.76PD PROGRAM SUPPLIES4903690
288.35CUSTODIAL SUPPLIES5173268
73.24PARK MAINT SUPPLIES5344171
66.17CUSTODIAL SUPPLIES7905401
28.64CUSTODIAL SUPPLIES8905156
Total : 1,104.25
184593 4/14/2026 113218 HORVITZ & LEVY LLP 105539 PROFESSIONAL SERVICES 1,183.70 Total : 1,183.70
184594 4/14/2026 113798 HOSODA BROS INC. PERMIT #18735 PERMIT DEPOSIT REFUND - 2040 W 135TH ST 2,000.00 Total : 2,000.00
184595 4/14/2026 106714 INTERSTATE BATTERIES OF, CALIFORNIA COAST, INC.120174794 037-10472 GTRANS AUTO PARTS 869.53 037-10472 716.73GTRANS AUTO PARTS120174905
Total : 1,586.26
184596 4/14/2026 104659 IRON MOUNTAIN INFORMATION, MANAGEMENT, LLCLGBG136 OFF-SITE STORAGE SERVICES - MARCH 2026 65.62 Total : 65.62
184597 4/14/2026 108579 J.D. FIELDS LUMBER COMPANY 15895 STREET MAINT SUPPLIES 85.41 Total : 85.41
184598 4/14/2026 100436 J.J. KELLER & ASSOCIATES, INC 9111027364 037-10460 FLEET MANAGEMENT AND COMPLIANCE SOFTWARE 532.18 Total : 532.18
184599 4/14/2026 110010 JANEK CORPORATION, THE 117984 GTRANS SHOP SUPPLIES 1,823.25 12Page:
04/09/2026
Voucher List
CITY OF GARDENA
13 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 1,823.25 184599 4/14/2026 110010 110010 JANEK CORPORATION, THE 184600 4/14/2026 113781 JOHNSON JR, LAWRENCE PERMIT #18804 PERMIT DEPOSIT REFUND - 1566 W 132ND ST 2,000.00 Total : 2,000.00
184601 4/14/2026 110853 JONES MAYER 140081 ATTORNEY SERVICES 2,864.02 3,953.23ATTORNEY SERVICES140082
538.21ATTORNEY SERVICES140083
89.50ATTORNEY SERVICES140084
656.34ATTORNEY SERVICES140085
24.46ATTORNEY SERVICES140086
865.16ATTORNEY SERVICES140087
298.34ATTORNEY SERVICES140088
3,222.05ATTORNEY SERVICES140089
1,253.03ATTORNEY SERVICES140090
1,272.57ATTORNEY SERVICES140091
6,165.13ATTORNEY SERVICES140092
3,648.74ATTORNEY SERVICES140093
880.72ATTORNEY SERVICES140094
2,006.11ATTORNEY SERVICES140095
15,662.53ATTORNEY SERVICES140096
59.66ATTORNEY SERVICES140097
924.85ATTORNEY SERVICES140098
020-00064 11,695.19ATTORNEY SERVICES140099
Total : 56,079.84
184602 4/14/2026 211429 KEMP, TAMARA MARCH 2026 DANCE INSTRUCTOR 1,640.00 Total : 1,640.00
184603 4/14/2026 112812 KIMBALL MIDWEST 104228159 GTRANS SHOP SUPPLIES 98.17 Total : 98.17
184604 4/14/2026 110385 KIMLEY-HORN AND ASSOCIATES, INC 35062984 032-00236 CONSULTING SERVICES - GARDENA PARTIAL GP 7,541.64 Total : 7,541.64
184605 4/14/2026 110848 KREUZER CONSULTING GROUP 25-161 024-01134 CONSULTANT SERVICES - LOCAL STREET IMPRO 5,972.00 Total : 5,972.00
13Page:
04/09/2026
Voucher List
CITY OF GARDENA
14 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184606 4/14/2026 312240 L.A. COUNTY DEPARTMENT OF, PUBLIC WORKS26030905054 024-01160 INDUSTRIAL WASTE SERVICES 21,673.98 024-01161 3,556.45TRAFFIC SIGNAL MAINT - FEBRUARY 202626030905381 Total : 25,230.43
184607 4/14/2026 312039 L.A. COUNTY FIRE DEPARTMENT C0014119 023-01601 FIRE PROTECTION SERVICES - MAY 2026 1,007,394.12 Total : 1,007,394.12
184608 4/14/2026 106372 LANDSCAPE STRUCTURES, INC. INV-176544 PARK MAINT SUPPLIES 3,749.40 Total : 3,749.40
184609 4/14/2026 105279 LOS ANGELES TRUCK CENTERS LLC XA220711129 STREET SWEEPER SUPPLIES 98.33 Total : 98.33
184610 4/14/2026 112326 LWP CLAIMS SOLUTIONS INC. 26425 023-01623 WORKERS' COMP CLAIMS ADMINISTRATOR 22,583.00 Total : 22,583.00
184611 4/14/2026 113301 M & K METAL CO. 420533 BLDG MAINT SUPPLIES 76.43 Total : 76.43
184612 4/14/2026 105082 MAJESTIC LIGHTING, INC. ML92273 037-10516 GTRANS FACILITIES SUPPLIES 19,061.25
88.37BLDG MAINT SUPPLIESML92321
Total : 19,149.62
184613 4/14/2026 109203 MAKAI SOLUTIONS I033126-455 FACILITIES & EQUIPMENT MAINT SERVICES 877.08 Total : 877.08
184614 4/14/2026 113113 MANERI DIRECT 25343 TREE TRIMMING SUPPLIES 1,701.70 Total : 1,701.70
184615 4/14/2026 110530 MANHATTAN STITCHING COMPANY, INC 114082 2026 FIVER STAR ROADEO SUPPLIES 3,923.63 Total : 3,923.63
184616 4/14/2026 813030 MANNING & KASS 858514 LEGAL SERVICES 369.95 1,053.75LEGAL SERVICES858520
Total : 1,423.70
184617 4/14/2026 104841 MAR-CO EQUIPMENT COMPANY 214946 STREET SWEEPER SUPPLIES 182.61 14Page:
04/09/2026
Voucher List
CITY OF GARDENA
15 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 182.61 184617 4/14/2026 104841 104841 MAR-CO EQUIPMENT COMPANY 184618 4/14/2026 110306 MARIPOSA LANDSCAPES, INC 116652 024-01175 MEDIAN LANDSCAPE MAINTENANCE 8,864.00 024-01175 8,864.00MEDIAN LANDSCAPE MAINTENANCE117076
024-01175 8,864.00MEDIAN LANDSCAPE MAINTENANCE117650
024-01162 4,042.00TREE TRIMMING MAINTENANCE SERVICE4363 Total : 30,634.00
184619 4/14/2026 112412 MARKETABLE ENG PROJ LLC DBA, MAX ENERGY PROFESSIONALS7410 REV1 024-01081 DESIGN SERVICES - ELECTRICAL UPGRADE, JN 3,172.50 Total : 3,172.50
184620 4/14/2026 113046 MARX BROS. FIRE EXTINGUISHER, CO., INC. M20228 FIRE EXTINGUISHER SERVICE - GTRANS 3,900.00 2,055.00FIRE EXTINGUISHER SERVICE - GTRANSP32122
Total : 5,955.00
184621 4/14/2026 113064 MCMASTER-CARR SUPPLY COMPANY 61032214 GTRANS SHOP SUPPLIES 65.00 389.79GTRANS SHOP SUPPLIES61192611
108.86GTRANS FACILITIES SUPPLIES61194307
Total : 563.65
184622 4/14/2026 112524 MDG ASSOCIATES, INC. 20591 032-00229 CDBG ADMINISTRATION - FEBRUARY 2026 5,848.00 032-00229 10,742.00CDBG HOUSING REHAB PROGRAM - FEBRUARY 2020592 032-00229 500.00CDBG ADMINISTRATION SOFTWARE - FEBRUARY20593 032-00229 500.00CDBG HOUSING REHAB PROGRAM SOFTWARE - FE20594 034-00687 500.00CPF ADMINISTRATION SOFTWARE - FEBRUARY 220595 Total : 18,090.00
184623 4/14/2026 110917 MOTOROLA SOLUTIONS, INC. 1411236990 VEHICLE MANAGER DEVICE LICENSE 59.37 Total : 59.37
184624 4/14/2026 109056 MULTICARD 81839 PD PROGRAM SUPPLIES 886.90 Total : 886.90
184625 4/14/2026 113295 MUNISERVICES, LLC INV06-022752 UUT CELLULAR COMPLIANCE SERVICES 1,570.57 367.58UUT WIRED COMPLIANCE SERVICESINV06-022753
Total : 1,938.15
184626 4/14/2026 113797 MURAKAMI, BRENT PERMIT #50025-0373 PERMIT DEPOSIT REFUND - 1903 W. 149TH ST 5,000.00 15Page:
04/09/2026
Voucher List
CITY OF GARDENA
16 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 5,000.00 184626 4/14/2026 113797 113797 MURAKAMI, BRENT 184627 4/14/2026 105622 N/S CORPORATION 0131535 037-10464 GTRANS BUS WASH EQUIPMENT MAINTENANCE 741.00 Total : 741.00
184628 4/14/2026 107030 NAPA AUTO PARTS 199384 PW AUTO PARTS 41.60
33.19PW AUTO PARTS199525
222.99PW AUTO PARTS199621
5.51STREET SWEEPER SUPPLIES199949
Total : 303.29
184629 4/14/2026 113680 NATIONAL LED LLC 54611 024-01200 JOHNSON PARK LIGHT POLES 25,600.00 Total : 25,600.00
184630 4/14/2026 112748 NEW DYNASTY CONSTRUCTION CO. 20 024-01027 AQUATIC & SENIOR CENTER PROJECT, JN978 1,174,562.33 Total : 1,174,562.33
184631 4/14/2026 105140 NMK CORPORATION COG-047 023-01633 COMPUTER REPLACEMENT PARTS 25,474.88 023-01633 1,697.29UBIQUITI PRO XG 8 POE DESKTOP SWITCHESCOG-049 Total : 27,172.17
184632 4/14/2026 110575 OCCUPATIONAL HEALTH CENTERS, OF CALIFORNIA, A MEDICAL90198704 023-01626 RANDOM TESTS 2,117.00 023-01626 2,020.00RANDOM TESTS90198753
023-01626 709.00RANDOM TESTS90280689
023-01626 1,972.00RANDOM TESTS90280747
023-01626 1,275.00RANDOM TESTS90282331
Total : 8,093.00
184633 4/14/2026 115168 OFFICE DEPOT 459737020 BUS OFFICE SUPPLIES 138.91 147.08PD OFFICE SUPPLIES460669658
88.82PD OFFICE SUPPLIES462046952
54.65FINANCE OFFICE SUPPLIES463087852
8.83FINANCE OFFICE SUPPLIES463087934
270.33FINANCE OFFICE SUPPLIES463119658
240.98PD OFFICE SUPPLIES463324201
114.96HR OFFICE SUPPLIES463741277
125.63CM OFFICE SUPPLIES464018664
16Page:
04/09/2026
Voucher List
CITY OF GARDENA
17 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 1,190.19 184633 4/14/2026 115168 115168 OFFICE DEPOT 184634 4/14/2026 109782 OMNITEK ENGINEERING CORP. 0013687 GTRANS AUTO PARTS 493.84 Total : 493.84
184635 4/14/2026 111358 O'REILLY AUTO PARTS 222619 GTRANS AUTO PARTS 163.84 -163.84GTRANS AUTO PARTS222627
25.21GTRANS AUTO PARTS239895
87.25PW AUTO PARTS242089
79.54PW AUTO PARTS244155
152.14PW AUTO PARTS244663
52.16STREET SWEEPER SUPPLIES247262
96.79STREET SWEEPER SUPPLIES248154
512.70STREET SWEEPER SUPPLIES248492
Total : 1,005.79
184636 4/14/2026 115810 ORKIN PEST CONTROL 293691261 PEST CONTROL - ACCT #27336703 387.59 387.59PEST CONTROL - ACCT #27336703293691262
387.59PEST CONTROL - ACCT #27336703293691263
Total : 1,162.77
184637 4/14/2026 112845 PALICON GROUP 2648 035-01397 BACKGROUND INVESTIGATION SERVICES 170.00 Total : 170.00
184638 4/14/2026 111954 PAN PACIFIC ENVIRONMENTAL GRP 26-1029 STORMWATER DRAIN CLEANING SERVICE 2,235.00 Total : 2,235.00
184639 4/14/2026 113194 PASILLAS, PATRICIA 04 04/01/26 FIELD SUPERVISION SERVICES 3,825.00 Total : 3,825.00
184640 4/14/2026 112173 PEREZ, NATHALIE 04/19-04/21 2026 NATIONAL PELRA CONFERENCE 150.00 Total : 150.00
184641 4/14/2026 112189 PERFECT SCORE ATHLETIC, TRAINING CENTER03/04-03/25/26 GYMNASTICS INSTRUCTOR SERVICES 2,558.40 Total : 2,558.40
184642 4/14/2026 112859 PET HAVEN CEMETERY 19768 032-00213 PROFESSIONAL CREMATORY SERVICES 1,910.00 17Page:
04/09/2026
Voucher List
CITY OF GARDENA
18 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 1,910.00 184642 4/14/2026 112859 112859 PET HAVEN CEMETERY 184643 4/14/2026 108628 PETROLEUM MARKETING EQUIPMENT 3283089 PW AUTO SUPPLIES 450.40 Total : 450.40
184644 4/14/2026 113786 POSTADJIAN, FILIP PERMIT #50025-0486 PERMIT DEPOSIT REFUND - 15719 SPINNING A 7,500.00 Total : 7,500.00
184645 4/14/2026 106092 PRUDENTIAL OVERALL SUPPLY 43103115 034-00712 CUSTODIAL SUPPLIES 1,717.27 024-01168 179.23UNIFORM & SUPPLY RENTAL43103116
034-00712
034-00712 32.05UNIFORM & SUPPLY RENTAL43103117
034-00712 51.20SUPPLY RENTAL - MATS - GTRANS43103118
034-00712 13.83SUPPLY RENTAL - MATS - NCC43103119
034-00712 19.42SUPPLY RENTAL - MATS - CH43103120
034-00712 29.70SUPPLY RENTAL - MATS - PD43103121
034-00712 11.88SUPPLY RENTAL - MATS - HS43103122
034-00712 2,725.88CUSTODIAL SUPPLIES43104853
024-01168 179.23UNIFORM & SUPPLY RENTAL43104854
034-00712
034-00712 32.05UNIFORM & SUPPLY RENTAL43104855
034-00712 51.20SUPPLY RENTAL - MATS - GTRANS43104856
037-10473 406.66UNIFORM & SUPPLY RENTAL43106299
Total : 5,449.60
184646 4/14/2026 102283 QUICK COLOR PRINTING 16794 STATE OF THE CITY 2026 BANNER 1,243.13 Total : 1,243.13
184647 4/14/2026 111574 RACE COMMUNICATIONS RC2106830 023-01621 FIBER INTERNET SERVICES - APRIL 2026 5,820.80 Total : 5,820.80
184648 4/14/2026 112578 RIDECO US INC 2026-141US 037-10254 MICROTRANSIT SOFTWARE 802.64 Total : 802.64
184649 4/14/2026 111867 RJM DESIGN GROUP 37677 024-00795 DESIGN & ENGINEERING - AQUATIC & SENIOR 2,984.80 Total : 2,984.80
184650 4/14/2026 112885 ROSE EQUIPMENT REPAIR INC. IN33547 VEHICLE MAINT SUPPLIES 1,001.37 18Page:
04/09/2026
Voucher List
CITY OF GARDENA
19 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 1,001.37 184650 4/14/2026 112885 112885 ROSE EQUIPMENT REPAIR INC. 184651 4/14/2026 113789 RT 3 LLC PERMIT #50024-1038 PERMIT DEPOSIT REFUND - 1310 W. 164TH, U 7,500.00 7,500.00PERMIT DEPOSIT REFUND - 1310 W. 164TH, UPERMIT #50024-1039 Total : 15,000.00
184652 4/14/2026 113327 RWC GROUP XA301256073 GTRANS AUTO PARTS 2,961.40 153.75GTRANS AUTO PARTSXA301256875
278.41GTRANS AUTO PARTSXA301258255
685.10GTRANS AUTO PARTSXA301258389
Total : 4,078.66
184653 4/14/2026 119022 SAFE MART OF SOUTHERN, CALIFORNIA, INC.2687 GTRANS MAINT SUPPLIES 276.25 Total : 276.25
184654 4/14/2026 119015 SAFETY-KLEEN CORPORATION 99538428 037-10474 SERVICE AQUEOUS PARTS WASHER 312.57 037-10474 161.17SERVICE AQUEOUS PARTS WASHER99541670
Total : 473.74
184655 4/14/2026 112327 SAMI'S REFEREES LLC 02/16/26-02/28/26 SPORT REFEREE SERVICES 280.00 840.00SPORT REFEREE SERVICES02/16-02/28/2026
1,260.00SPORT REFEREE SERVICES02/16-02/28/26
140.00SPORT REFEREE SERVICES03/01/26-03/15/26
140.00SPORT REFEREE SERVICES03/01-03/15/2026
140.00SPORT REFEREE SERVICES03/01-03/15/26
Total : 2,800.00
184656 4/14/2026 319125 SAN BERNARDINO COUNTY, SHERIFF'S DEPARTMENTEVOC26-03-013 DRIVER TRAINING (EVOC) UPDATE 900.00 Total : 900.00
184657 4/14/2026 112847 SANCHEZ, INGRIT 159-981101 EASTER EGG CELEBRATION, 250.00 Total : 250.00
184658 4/14/2026 113788 SANCHEZ, REFUGIO PERMIT #50022-0691 PERMIT DEPOSIT REFUND - 1124 W REDONDO B 5,000.00 5,000.00PERMIT DEPOSIT REFUND - 1443 W. 173RD STPERMIT #50023-0898 Total : 10,000.00
184659 4/14/2026 107006 SHAMROCK COMPANIES 2816460 STREET MAINT SUPPLIES 688.98 19Page:
04/09/2026
Voucher List
CITY OF GARDENA
20 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 688.98 184659 4/14/2026 107006 107006 SHAMROCK COMPANIES 184660 4/14/2026 119233 SHERWIN-WILLIAMS CO. 68157139640326 BLDG MAINT SUPPLIES 55.75 Total : 55.75
184661 4/14/2026 112510 SO CAL MOBILE MAINTENANCE, INC 22608 CNG INSPECTION SERVICES 562.50 Total : 562.50
184662 4/14/2026 119447 SOUTH BAY FORD 580372 PW AUTO PARTS 88.60 1,326.00PW AUTO PARTS581892
Total : 1,414.60
184663 4/14/2026 619003 SOUTHERN CALIFORNIA EDISON 040126 LIGHT & POWER 97,932.09 Total : 97,932.09
184664 4/14/2026 103202 SOUTHERN COUNTIES LUBRICANTS, LLC 113678 BUS AUTOMOTIVE FLUIDS 4,833.88 Total : 4,833.88
184665 4/14/2026 111778 SPCALA 202603 032-00227 ANIMAL SHELTER SERVICES 25,900.00 Total : 25,900.00
184666 4/14/2026 109067 SPEAKWRITE 8f6280f9 TRANSCRIPTION SERVICES - MARCH 2026 81.11 Total : 81.11
184667 4/14/2026 104453 SPICERS PAPER, INC. 50534404 PRINT SHOP PAPER 2,361.61 Total : 2,361.61
184668 4/14/2026 119548 ST. JOHN LUTHERAN CHURCH APRIL 2026 SENIOR CITIZENS DAY CARE 1,100.00 Total : 1,100.00
184669 4/14/2026 119594 STANLEY PEST CONTROL 2032628 PEST CONTROL SERVICE - 1717 W 162ND ST 75.00
70.00PEST CONTROL SERVICE - 1220 W 170TH ST2032629
42.00PEST CONTROL SERVICE - 15800 BRIGHTON AV2032630
85.00PEST CONTROL SERVICE - 1651 W 162ND ST2032635
80.00PEST CONTROL SERVICE - 1700 W 162ND ST2032636
80.00PEST CONTROL SERVICE - 1670 W 162ND ST2032637
65.00PEST CONTROL SERVICE - 1718 W 162ND ST2032638
65.00PEST CONTROL SERVICE - 2100 W 154TH PL2032641
20Page:
04/09/2026
Voucher List
CITY OF GARDENA
21 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184669 4/14/2026 (Continued)119594 STANLEY PEST CONTROL
42.00PEST CONTROL SERVICE - 2320 W 149TH AVE2032642
60.00PEST CONTROL SERVICE - 14517 CRENSHAW BL2032645
65.00PEST CONTROL SERVICE - 13220 VAN NESS AV2032648
42.00PEST CONTROL SERVICE - 14708 HALLDALE AV2032649
Total : 771.00
184670 4/14/2026 108338 STEAMX, LLC 75025 GTRANS MAINT SUPPLIES 392.28 Total : 392.28
184671 4/14/2026 219620 SWEENEY, NIKKI 3287/3290 STATE OF THE CITY RENTAL EXP 1,425.00 Total : 1,425.00
184672 4/14/2026 100609 TANK SPECIALISTS OF CALIFORNIA 35972 CERTIFIED DESIGNATED OPERATOR SERVICE 198.00 Total : 198.00
184673 4/14/2026 113357 TEAM CIVX 4369 023-01593 COMMUNICATION & PROJECT MGMT SERVICES 7,800.00 Total : 7,800.00
184674 4/14/2026 113297 TECHNICAL MASTERY SOCCER MARCH 2026 SOCCER INSTRUCTOR 877.40 Total : 877.40
184675 4/14/2026 120215 THOMPSON TROPHY MFG., INC. 72936 CM PROGRAM SUPPLIES 148.16 Total : 148.16
184676 4/14/2026 110238 TIREHUB, LLC 56876151 TIRES - GY WRL FORTITUDE 265 70/16 124.39 Total : 124.39
184677 4/14/2026 113646 TOTAL CORPORATE SOLUTIONS INC. 9700 023-01649 IT OFFICE REMODEL 10,218.85 Total : 10,218.85
184678 4/14/2026 111990 TOWNSEND PUBLIC AFFAIRS, INC 24949 023-01672 CONSULTING SERVICES - MARCH 2026 7,250.00 023-01672 7,250.00CONSULTING SERVICES - APRIL 202625120 Total : 14,500.00
184679 4/14/2026 106018 TRANE U.S. INC. 21282951 037-10467 BUS FACILITY MAINT SUPPLIES 4,574.17 Total : 4,574.17
21Page:
04/09/2026
Voucher List
CITY OF GARDENA
22 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184680 4/14/2026 105717 TRANSPORTATION MANAGEMENT, & DESIGN, INC.1199-05 037-10502 GTRANS COMPREHENSIVE OPERATIONAL ANALYSI 77,005.29 Total : 77,005.29
184681 4/14/2026 110851 TRAPEZE SOFTWARE GROUP, INC. TSPAU250210 037-10231 GTRANS SCHEDULING & OPERATIONS MGMT SOFT 737.51 Total : 737.51
184682 4/14/2026 105556 TRIANGLE SPORTS, INC. 43797 YOUTH SPORTS SUPPLIES 1,440.47 3,013.74YOUTH SPORTS SUPPLIES43798
Total : 4,454.21
184683 4/14/2026 111481 TRIO COMMUNITY MEALS, LLC INV2230078475 034-00705 SENIOR FEEDING PROGRAM 7,741.54 034-00705 8,415.75SENIOR FEEDING PROGRAMINV2230078701
034-00705 8,890.25SENIOR FEEDING PROGRAMINV2230078924
Total : 25,047.54
184684 4/14/2026 109900 U.S. BANK CORPORATE PAYMENT, SYSTEMSFINANCE 03/23/26 CAL CARD STATEMENT 02/24-03/23/26 14,253.54 117.39CAL CARD STATEMENT 03/23/2026KWAK 03/23/26
7,226.16CAL CARD STATEMENT 01/23-02/23/26NOLAN 02/23/26 237.54CAL CARD STATEMENT 02/24-03/23/26RIGG 03/23/26
Total : 21,834.63
184685 4/14/2026 109900 U.S. BANK CORPORATE PAYMENT, SYSTEMSBEEMAN 03/23/26 CAL CARD STATEMENT 02/24-03/23/26 16.79 218.39CAL CARD STATEMENT 01/23-02/23/26BROCK 02/23/26
291.10CAL CARD STATEMENT 02/24-03/23/26CDD 03/23/26
5,883.27CAL CARD STATEMENT 02/24-03/23/26CRESPO 03/23/26 1,214.15CAL CARD STATEMENT 01/23-02/23/26CUFF 02/23/26
3,846.59CAL CARD STATEMENT 02/24-03/23/26HR 03/23/26
3,582.30CAL CARD STATEMENT 02/24-03/23/26OROZCO 03/23/26 6,162.53CAL CARD STATEMENT 01/23-02/23/26PYNN 02/23/26
5,003.17CAL CARD STATEMENT 02/24-03/23/26PYNN 03/23/26
1,396.30CAL CARD STATEMENT 12/23/25-01/22/26SANTOS 01/22/26 2,883.55CAL CARD STATEMENT 01/23-02/23/26SANTOS 02/23/26 3,330.94CAL CARD STATEMENT 02/24-03/23/26TSUJIUCHI 03/23/26 Total : 33,829.08
184686 4/14/2026 104692 ULINE 205320788 CUSTODIAL SUPPLIES 270.17 772.65BUS SHOP SUPPLIES205555988
22Page:
04/09/2026
Voucher List
CITY OF GARDENA
23 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount (Continued) Total : 1,042.82 184686 4/14/2026 104692 104692 ULINE 184687 4/14/2026 107596 UNION PACIFIC RAILROAD COMPANY 90158063 024-01007 ARTESIA BLVD ARTERIAL IMPVT PROJ, JN935 4,596.94 Total : 4,596.94
184688 4/14/2026 122050 VERIZON WIRELESS 6138211763 PW CELL PHONE SERVICE 732.29 Total : 732.29
184689 4/14/2026 122435 VISTA PAINT CORPORATION 2026-300330-00 STREET MAINT SUPPLIES 219.20 350.70STREET MAINT SUPPLIES2026-314664-00
Total : 569.90
184690 4/14/2026 113626 WAISMAN CONTRUCTION INC 03 024-01187 CIVIC CENTER LIGHTING IMPROVEMENTS, JN52 187,005.28 Total : 187,005.28
184691 4/14/2026 101195 WASTE RESOURCES GARDENA 032426 WASTE COLLECTION 314,475.06 Total : 314,475.06
184692 4/14/2026 104107 WAXIE SANITARY SUPPLY 83836182 BUS WASH SUPPLIES 464.90 Total : 464.90
184693 4/14/2026 112737 WELLS FARGO VENDOR FINANCIAL, SERVICES, LLC5038019601 023-01622 CITYWIDE COPIER LEASE - APRIL 2026 3,921.66 Total : 3,921.66
184694 4/14/2026 113796 WESTERN ENGINEERING, YOLANDA RANDOLPHPERMIT #50025-0555 PERMIT DEPOSIT REFUND - 15329 S. NORMAND 7,500.00 Total : 7,500.00
184695 4/14/2026 113799 WESTHOME PROPERTY MANAGEMENT RA-BENNETT 05/2026 RENTAL ASSISTANCE PROGRAM 1,824.50 Total : 1,824.50
184696 4/14/2026 123050 WILLIAMS SCOTSMAN, INC. 9025750981 MODULAR BUILDING RENTAL PARTS 849.03 035-01414 2,284.43MODULAR BUILDING RENTAL CPX-804169025838673 Total : 3,133.46
184697 4/14/2026 113792 WILMES, LLC 4384 RISK MANAGEMENT IIPP TRAINING VIDEO 50.00 Total : 50.00
184698 4/14/2026 125001 YAMADA COMPANY, INC. 85438 PARK MAINT SUPPLIES 52.46 23Page:
04/09/2026
Voucher List
CITY OF GARDENA
24 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount 184698 4/14/2026 (Continued)125001 YAMADA COMPANY, INC. 405.58STREET MAINT SUPPLIES85440
456.74PARK MAINT SUPPLIES85443
87.75PARK MAINT SUPPLIES85467
Total : 1,002.53
184699 4/14/2026 113785 YANG, JISOO PERMIT #50025-1033 PERMIT DEPOSIT REFUND - 1855 W. 154TH PI 5,000.00 Total : 5,000.00
184700 4/14/2026 111102 YOO, IN KYUNG 030526 MGMT ANNUAL HEALTH BENEFIT 24.00 Total : 24.00
184701 4/14/2026 112235 YUNEX LLC 5610007788 TRAFFIC SIGNAL RESPONSE CALL OUTS - 380.00 3,395.00TRAFFIC POLE INSTALLATION - VERMONT AVE90006621 Total : 3,775.00
184702 4/14/2026 126122 ZEP SALES & SERVICE 9012518679 PW PROGRAM SUPPLIES 428.05 Total : 428.05
Bank total : 11,973,465.98 220 Vouchers for bank code : usb 11,973,465.98Total vouchers :Vouchers in this report 220 24Page:
04/09/2026
Voucher List
CITY
OF GARDENA
25 10:54:29AM
Page:vchlist
Bank code : usb
Voucher Date Vendor Invoice PO # Description/Account Amount
CLAIMS VOUCHER APPROV
AL
I hereby certify that the demands or claims covered by the checks listed on pages _____ to _____ inclusive of the check register are accurate and funds are available for payment thereof.
By: __________________________________________
Director of Administrative Services
This is to certify that the claims or demands covered by checks listed on pages _____ to _____ inclusive of the check register have been audited by the City Council of the City of Gardena and that all of the said checks are approved for payment except check numbers:
______________________________________________________
_________________________ __________
Mayor Date
_________________________ __________
Councilmember Date
_________________________ __________
Councilmember Date
Acknowledged:
_________________________ __________
Councilmember Date
_________________________ __________
Councilmember Date
25Page:
1 24
1 24
04/14/2026
Report No. P-2026-6
1 TO: THE HONORABLE MAYOR AND CITY COUNCIL
SUBJECT: PERSONNEL REPORT
1. Report the appointment of the following individuals:
a. YOHANA CUCHILLO MORA to the position of Social Services Coordinator Schedule 42 ($4,902 – $6,256/month), with the Recreation and Human Services Department, effective March 23, 2026.
b. DERRICK DOUGLAS to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. c. STARR BENNETT to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. d. WARREN WORRIOR JR to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. e. BRYAN DE LUNA to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. f. ISSIS CAMILLERI to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. g. ANA ALVARADO RAMIREZ to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. h. CARL SLUSHER to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. i. EDWIN DEL CID to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. j. ASIA CARR to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. k. DANIEL GARCIA MARTIN to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026. l. KAMANIA BEARD to the position of Bus Operator Schedule 90 ($4,952 – $6,321/month), with the Transportation Department, effective March 23, 2026.
2. Report the Separation of the following employees:
a. FERNANDA CASO , Police Officer with the Police Department, effective March 27, 2026. Ms. Caso provided 8 months of service to the City.
3. Report the Recruitment for the Open/Competitive position of Lifeguard (Recreation and Human Services Department). This is a continuous recruitment.
4. Report the Recruitment for the Open/Competitive position of Lifeguard/Instructor (Recreation and Human Services Department). This is a continuous recruitment.
5. Report the Recruitment for the Open/Competitive position of Custodian I (Recreation and Human Services Department). This recruitment is scheduled to close April 17, 2026.
Report No. P-2026-6
2 6. Report the Recruitment for the Open/Competitive position of Warehouse/Custodial Lead (Recreation and Human Services Department). This recruitment is scheduled to close April 21, 2026.
7. Report the Recruitment for the Open/Competitive position of Purchasing Specialist (Transportation Department). This recruitment is open until filled.
8. Report the Recruitment for the Open/Competitive position of Transit Operations Training Coordinator (Transportation Department). This recruitment is scheduled to close April 15, 2026.
9. Report the Recruitment for the Open/Competitive position of Police Officer/Lateral (Police Department). This is a continuous recruitment.
10. Report the Recruitment for the Open/Competitive position of Police Assistant (Police Department). This recruitment is scheduled to close April 16, 2026.
City of Gardena
Gardena Planning and
Environmental Quality
Commission Meeting
AGENDA REPORT
SUMMARY
Agenda Item No. 11A.
Section: PLANNING &
ENVIRONMENTAL
QUALITY COMMISSION
ACTION SHEET
Meeting Date: April 14,
2026
TO: THE HONORABLE MAYOR AND MEMBERS OF THE GARDENA CITY COUNCIL AGENDA TITLE: April 7, 2026 MEETING ITEM 6.A
PROJECT DESCRIPTION:
MODIFICATION TO AMEND CONDITIONAL USE PERMIT #5-21; SITE PLAN REVIEW #5-21; AND ENVIRONMENTAL ASSESSMENT #2-26;
The Planning and Environmental Quality Commission reviewed a request to approve a modification to amend Conditional Use Permit (CUP #5-21); Site Plan Review (SPR #5-21); and Environmental Assessment (EA#2-26); to replace a previously approved pool and spa with a courtyard and landscaping for the 121-unit single room occupancy housing development that is currently under construction, per Section 18.36.030.P.4 of the Gardena Municipal Code.
Environmental Consideration: The project was considered for a categorical exemption from the provisions of the California Environmental Quality Act (CEQA) pursuant to Section 15332 (Class 32- infill development project).
APPLICANT: Lee Johnson (West Realty Group)
LOCATION: 13126 S. Western Ave. (APN 6102-006-013)
Commission Action: The Planning and Environmental Quality Commission adopted Resolution No. PC 4-26, by vote of 4-0, with one commissioner absent, to approve modification of Conditional Use Permit #5-21, Site Plan Review #5-21; and Environmental Assessment #2-26, subject to the conditions of approval, and directed staff to file a notice of exemption.
STAFF RECOMMENDATION:
City Council Action: Receive and file OR Call for Review (By way of two votes from the City Council).
APPROVED:
Greg S. Tsujiuchi, Community Development Director
Attachments
2026_04_07_PCAX
PLANNING AND ENVIRONMENTAL QUALITY
COMMISSION
Regular PEQC Meeting Notice and Agenda
Website: www.cityofgardena.org
Tuesday, April 7, 2026, 7:00 PM
Council Chamber at City Hall
1700 W. 162nd Street, Gardena, California
REPORT OF ACTIONS
To view the complete Planning and Environmental Quality Commission agenda packet, click here.
6. PUBLIC HEARING ITEMS
6.A. MODIFICATION TO AMEND CONDITIONAL USE PERMIT #5-21; SITE PLAN REVIEW #5- 21; AND ENVIRONMENTAL ASSESSMENT #2-26;
The Planning and Environmental Quality Commission reviewed a request to approve a modification to amend Conditional Use Permit (CUP #5 -21); Site Plan Review (SPR #5 - 21); and Environmental Assessment (EA#2 -26); to replace a previously approved pool and spa with a courtyard and landscaping for the 121-unit single room occupancy housing development that is currently under construction, per Section 18.36.030.P.4 of the Gardena Municipal Code.
Environmental Consideration: The project was considered for a categorical exemption from the provisions of the California Environmental Quality Act (CEQA) pursuant to Section 15332 (Class 32- infill development project).
APPLICANT: Lee Johnson (West Realty Group)
LOCATION: 13126 S. Western Ave., APN (6102-006-013)
Commission Action: The Planning and Environmental Quality Commission adopted Resolution No. PC 4-26, by vote of 4-0, with one commissioner absent, to approve Modification of Conditional Use Permit # 5-21, Site Plan Review #5 -21; and Environmental Assessment #2-26, subject to the conditions of approval, and directed staff to file a notice of exemption
City Council Action: Receive and file OR Call for Review (By way of two votes from the City Council).
City of Gardena
Gardena City Council
Meeting
AGENDA REPORT
SUMMARY
Agenda Item No. 14A.
Section: DEPARTMENTAL
ITEMS - COMMUNITY
DEVELOPMENT
Meeting Date: April 14,
2026
TO: THE HONORABLE MAYOR AND MEMBERS OF THE GARDENA CITY COUNCIL AGENDA TITLE: PUBLIC HEARING: INTRODUCTION OF ORDINANCE NO. 1890, An Ordinance of the City of Gardena, California, Amending Portions of Title 18 (Zoning) of the Municipal Code Relating to Review Process and Standards for Mechanical/Robotic Parking Structures, and On-Site Parking Standards for Commercial Uses on Gardena Boulevard Between Normandie Avenue and Vermont Avenue; and Finding the Action Statutorily Exempt from the California Environmental Quality Act Pursuant to the Common Sense Exemption of CEQA Guidelines Section 15061(b)(3)
COUNCIL ACTION REQUIRED:
Staff respectfully recommend that the City Council:
Open the public hearing, receive public testimony, and close the public hearing; and Introduce Ordinance No. 1890
RECOMMENDATION AND STAFF SUMMARY:
Ordinance No. 1890 amends the Gardena Municipal Code to require approval of a Conditional Use Permit (CUP) for robotic or mechanical parking structures and establishes clear design and operational performance standards.
These changes would provide the City with the necessary oversight to ensure such facilities are compatible with surrounding uses and to address potential impacts over time.
In addition, the Ordinance removes the existing exception that allows business and property owners in Downtown Gardena to satisfy off-street parking requirements through payment of a one-time parking in-lieu fee.
The current one-time fee is $750 per parking space and if paid, properties are permanently exempt from providing the required off-street parking, which has contributed to ongoing traffic congestion and circulation issues within the downtown area. Eliminating this exemption would help ensure that new development more adequately accommodates its parking demand and reduces strain on public streets.
On January 20, 2026, the Planning and Environmental Quality Commission held a public hearing and voted 3-0 (two Commissioners were absent) to adopt Resolution No. 3-26, recommending that the City Council adopt Ordinance No. 1890 and determine that the Ordinance is statutorily exempt from the California Environmental Quality Act (CEQA) under Section 15061(b)(3).
FISCAL IMPACT/COST:
This is strictly an administrative item, therefore there is no fiscal impact associated with this action.
APPROVED:
___________________________
Clint Osorio, City Manager
Attachments
Staff Report Ordinance No. 1890
Attachment A - Ordinance 1890
Attachment B - PEQC Resolution No. 3-26
City of Gardena
City Council Meeting
Agenda Item No. 14 A.
Department: Community Development
Meeting Date: April 14, 2026
AGENDA TITLE:
AGENDA TITLE: PUBLIC HEARING: ORDINANCE NO. 1890 - An Ordinance of the City of Gardena, California, Amending Portions of Title 18 (Zoning) of the Municipal Code Relating to Review Process and Standards for Mechanical/Robotic Parking Structures, and On-Site Parking Standards for Commercial Uses on Gardena Boulevard Between Normandie Avenue and Vermont Avenue
RECOMMENDATION:
Staff Recommendation: Open the public hearing, receive testimony from the public, and close the public hearing.
Staff Recommendation for Motion: Introduce Ordinance No. 1890 including making the findings for a CEQA exemption pursuant to CEQA Guidelines section 15061(b)(3).
BACKGROUND:
The Community Development Department has received applications proposing multifamily residential developments that rely on robotic or mechanical parking structures to satisfy the City’s off -street parking requirements. Currently, robotic or mechanical parking structures are permitted by right, with wall screening as the only development standard specific to these facilities. Continuing to allow these facilities to be constructed by right limits the City’s ability to address potential operational, safety, an d compatibility impacts on adjacent residential properties, including issues that may arise after construction, because the City lacks discretionary authority to impose performance standards or require corrective measures.
The Ordinance would require approval of a Conditional Use Permit for robotic or mechanical parking structures and would establish clear design and operational performance standards. These changes would provide the City with the necessary oversight to ensure such facilities are compatible with surrounding uses and to address potential impacts over time.
In addition, the Ordinance removes the existing exception that allows business and property owners in Downtown Gardena to satisfy off-street parking requirements through
AGENDA STAFF REPORT
payment of a one-time parking in-lieu fee. The current one-time fee is $750 per parking space and if paid, properties are permanently exempt from providing the required off - street parking, which has contributed to ongoing traffic congestion and circulation issues within the downtown area. Eliminating this exemption would help ensure that new development more adequately accommodates its parking demand and reduces strain on public streets.
Planning and Environmental Quality Commission Review
On January 20, 2026, the Planning and Environmental Quality Commission (PEQC) held a public hearing and voted 3-0 (two Commissioners were absent) to adopt Resolution No. 3-26 (Attachment A), recommending that the City Council adopt Ordinance No. 1890.
PROJECT DESCRIPTION AND ANALYSIS:
Ordinance No. 1890 will amend certain chapters of Title 18 (Zoning) of the Gardena Municipal Code (GMC). The following is an outline of the proposed changes to the GMC that the PEQC reviewed and recommended that the City Council adopt:
Chapters 18.18A (Very High Density Multifamily Residential Zone R -6) and 18.21 (Housing Overlays)
• Revised to clarify that the construction of mechanical or robotic parking structures requires approval of a Conditional Use Permit (CUP).
• Cross-references added to Chapters 18.40 (Off -street Parking and Loading) and
18.42 (General Provisions) to improve navigation, avoid repetition of the same development standards throughout the Code, and provide clarity and consistency for the same topic.
Chapters 18.20 (Commercial Residential Zone C -R) and 18.40 (Off -street Parking and Loading)
• Deletes the provision allowing business owners to pay a one-time in-lieu fee to be allowed to expand or change the land -use to a more intensive use without providing the amount of off-street parking spaces required by the GMC. • Clarifies that existing legal-nonconforming uses may be retained and/or replaced with a similar or less intensive use without providing additional parking spaces as long as the use is not intensified and/or the building/tenant space is not expanded.
Chapters 18.42 (General Provisions)
• New Section 18.42.125 (Mechanical or robotic parking structures) added to provide specific development standards for mechanical or robotic parking structures.
o Minimum required parking stall dimensions are specified to allow robotic and mechanical parking structures to be able to accommodate a wide range of vehicle types and sizes (compact vehicles to larger pick -up trucks and SUVs).
o Requires mechanical and robotic parking structures to be screened by the primary multifamily residential structure from the public right -of-way and adjacent residential uses.
o Requires a noise impact technical report/study for robotic and mechanical parking structures proposed within 50 feet from any residential use or sensitive receptor.
GENERAL PLAN CONSISTENCY
The proposed use is consistent with the City’s General Plan. The project is consistent with the following General Plan Goals and Policies:
• Land Use Goal 1: Preserve and protect existing single -family and low/medium density residential neighborhoods while promoting the development of high-quality housing types in the City.
o Land Use Policy 1.1: Promote sound housing and attractive and safe residential neighborhoods.
o Land Use Policy 1.2: Protect existing sound residential neighborhoods from incompatible uses and development.
o Land Use Policy 1.3: Protect the character of lower density residential neighborhoods
o Land Use Policy 1.5: Provide adequate residential amenities such as open space, recreation, off-street parking and pedestrian features in multi- family residential development
o Land Use Policy 1.10: Provide adequate off-street parking, open space and landscaping for both residential and business use in all mixed -use developments.
o Land Use Policy 1.11: Design infill development to be compatible and consistent with the existing low -density character of residential neighborhoods.
o Land Use Policy 1.12: Require infill development to provide adequate amenities to minimize the impact of such development on the immediate neighborhood and on City services generally, including off-street parking to meet the additional demand placed on street parking.
ENVIRONMENTAL CONSIDERATIONS
Zone Text Amendment #3 -25 under Ordinance No. 1890 is statutorily exempt from the provisions of the California Environmental Quality Act (CEQA) under Section 15061(b)(3) of the CEQA Guidelines, which provides that CEQA only applies to projects that have the potential for causing a significant effect on the environment. The Ordinance would not result in physical change in the environment and does not involve any construction or additions to any existing structures.
NOTICING:
The public hearing notice was published in the Gardena Valley News on March 19, 2026.
A copy of Proof of Publication is on file in the office of the Community Development Department Room 101, City Hall and is considered part of the administrative record.
CONCLUSION:
Staff respectfully recommend that the City Council open the public hearing, receive public testimony, close the public hearing, and introduce Ordinance No. 1890.
FISCAL IMPACT:
This is strictly an administrative item, therefore there is no fiscal impact associated with this action.
ATTACHMENTS TO STAFF REPORT
Attachment A – Ordinance No. 1890
Attachment B – PEQC Resolution No. PC 3-26
Submitted by: Jo-Anne Burns, Assistant Community Development Director Date: March 24, 2026
ORDINANCE NO. 1890
AN ORDINANCE OF THE CITY OF GARDENA,
CALIFORNIA, AMENDING PORTIONS OF TITLE 18
(ZONING) OF THE MUNICIPAL CODE RELATING TO
REVIEW PROCESS AND STANDARDS FOR
MECHANICAL/ROBOTIC PARKING STRUCTURES, AND
ON-SITE PARKING STANDARDS FOR COMMERCIAL
USES ON GARDENA BOULEVARD BETWEEN
NORMANDIE AVENUE AND VERMONT AVENUE; AND
FINDING THE ACTION STATUTORILY EXEMPT FROM
THE CALIFORNIA ENVIRONMENTAL QUALITY ACT
PURSUANT TO THE COMMON SENSE EXEMPTION OF
CEQA GUIDELINES SECTION 15061(b)(3)
WHEREAS, the City of Gardena has determined that it is necessary to amend Title 18 of the Gardena Municipal Code relating to the review process and development/design standards for mechanical/robotic parking structures, and on-site/off-street parking standards for Gardena Boulevard between Normandie Avenue and Vermont Avenue (the parking in-lieu fee); and
WHEREAS, on January 20, 2026, the Planning and Environmental Quality Commission conducted a duly noticed public hearing as prescribed by law regarding Zone Text Amendment No. 3-25. At the conclusion of the public hearing, the Planning Commission adopted Resolution No. 3-26, recommending that the City Council adopt this ordinance; and
WHEREAS, on April 14, 2026, the City Council conducted a duly noticed public hearing as prescribed by law regarding this ordinance approving Zone Text Amendment No. 3-25; and
WHEREAS, the City Council has duly considered all information presented to it, including written staff reports and any testimony provided at the public hearing, with all testimony received being made a part of the public record.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF GARDENA, CALIFORNIA DOES ORDAIN AS FOLLOWS:
SECTION 1. Amendment to Chapter 18.18A. Subsection I.2. of Section
18.18A.040 (Development standards) of Title 18 (Zoning) of the Gardena Municipal Code is hereby amended to read as follows:
2. Tandem and mechanical parking:
Docusign Envelope ID: CCCFC4EB-8EED-49D6-A95D-ACB47607B573 a. Residential parking may be satisfied by tandem spaces where parking is assigned to a single residential unit. Two-level mechanical vehicle lifts are to be treated as tandem and subject to the same restrictions. Unassigned parking and parking assigned to different units may not be tandem; b. Mechanical or robotic parking structures, other than two-level mechanical vehicle lifts, are may be permitted subject to the approval of a conditional use permit and shall comply with off-street parking standards set forth in Chapter 18.40 and development standards applicable to residential structures in this chapter and Chapter 18.42.
SECTION 2. Amendment to Chapter 18.20. Subsection A.6. of Section
18.20.050 (Property development standards) of Title 18 (Zoning) of the Gardena Municipal Code is hereby amended to read as follows:
6. Off-Street Parking.
a. Residential. Enclosed parking spaces shall be provided at the rate of one space for every studio and one bedroom unit and two spaces for every unit which is two or more bedrooms. In addition, guest parking shall be provided at the rate of one-fourth space per unit and all fractional spaces shall be rounded up to a full parking space.
b. Commercial. Parking for the commercial portion of any building shall be required at the rate set forth in Chapter 18.40, but may be satisfied by paying an in-lieu parking fee in accordance with Section 18.40.120.
Parking may be reduced to the extent such reduction is justified by a parking demand study submitted by the applicant and approved by the city.
c. Except as specified herein, all other provisions of Chapter 18.40 shall apply.
SECTION 3. Amendment to Chapter 18.21. Subsection H.2. of Section
18.21.050 (Development standards for all housing overlays) of Title 18 (Zoning) of the Gardena Municipal Code is hereby amended to read as follows:
2. Tandem and mechanical parking:
a. Residential parking may be satisfied by tandem spaces where parking is assigned to a single residential unit. Two-level mechanical vehicle lifts are to be treated as tandem and subject to the same restrictions.
Unassigned parking and parking assigned to different units may not be tandem;
b. Mechanical or robotic parking structures that accommodate three or more vehicles are may be permitted subject to the approval of a conditional use Docusign Envelope ID: CCCFC4EB-8EED-49D6-A95D-ACB47607B573 permit and shall comply with off-street parking standards set forth in Chapter
18.40 and development standards applicable to a residential structure in this chapter and Chapter 18.42;
SECTION 4. Amendment to Chapter 18.40. Section 18.40.120 (Parking for the Gardena Boulevard commercial uses) of Title 18 (Zoning) of the Gardena Municipal Code is hereby amended to read as follows:
New or expanded commercial uses located on Gardena Boulevard between Normandie Avenue and Vermont Avenue may satisfy the parking requirements set forth in Section 18.40.040 as follows:
A. On-site parking shall be provided for spaces required due to increased square footage above and beyond existing square footage, as well as for any parking spaces that were previously provided on site.
B. Where the business is short parking spaces based on the original square footage, the deficiency in parking may be met by providing an in-lieu fee for each space in an amount determined by resolution of the city council.
Funds collected pursuant to this subsection shall be nonrefundable and shall be placed in a special account to be utilized exclusively for providing off-street parking in the area described above in the introductory paragraph.
CB. No additional parking spaces or in-lieu fees shall be required where there is only a change in business and/or use without an increased intensification of parking requirements for the new business and/or uses and there is no additional square footage being added to the business.
SECTION 5. Amendment to Chapter 18.42. The Gardena Municipal Code is hereby amended to add Section 18.42.125 (Mechanical or robotic parking structures) to read as follows:
A. Mechanical or robotic parking structures may be permitted in conjunction with a multi-family residential development subject to the approval of a conditional use permit and shall comply with all of the following:
1. Residential development standards applicable to the underlaying zone.
2. Off-street parking standards listed in Chapter 18.40.
3. Applicable standards in this chapter.
4. Mechanical and robotic parking structure design and performance standards.
Docusign Envelope ID: CCCFC4EB-8EED-49D6-A95D-ACB47607B573 a. All automobile parking stalls included in a mechanical lift or robotic parking structure shall meet the minimum dimensions listed in the table below:
b. The lift equipment or computerized parking structure shall meet any applicable building, mechanical, electrical, and fire code requirements as approved by the Building and Safety Division and the Fire Department.
c. The mechanical and robotic parking structure shall be screened by the primary multifamily residential structure from the public right-of-way and/or adjacent single-family residential uses in addition to the required screen walls listed in Chapter 18.40.
5. A noise impact technical report is required for any mechanical or robotic parking structure proposed to be located within 50 feet from any residential use or other use considered as a sensitive receptor such as, but not limited to, schools, parks, libraries, hospitals, care facilities, and religious facilities.
SECTION 6. CEQA. Pursuant to the State California Environmental Quality Act (CEQA) Guidelines, the City Council finds and determines that the ordinance is statutorily exempt from CEQA under Section 15061(b)(3) (the commonsense exemption) of the CEQA Guidelines, which provides that CEQA only applies to projects that have the potential for causing a significant effect on the environment. The ordinance would not result in direct or indirect physical change in the environment and does not involve any construction or additions to any existing structures.
SECTION 7. Effective Date. This Ordinance shall take effect and be in force thirty (30) days from and after the date of its passage.
SECTION 8. Certification. The Mayor shall sign and the City Clerk shall certify to the passage and adoption of this Ordinance and shall cause the same to be published or posted in the manner required by law.
PARKING STALL DIMENSION
Clear Width (minimum) 8'-0"
Clear Height
(minimum) 7'-0"
Clear Depth (minimum) 18'-0"
Docusign Envelope ID: CCCFC4EB-8EED-49D6-A95D-ACB47607B573
PASSED, APPROVED AND ADOPTED on the ______ day of April, 2026.
TASHA CERDA, Mayor
ATTEST:
MINA SEMENZA, City Clerk
APPROVED AS TO FORM:
CARMEN VASQUEZ, City Attorney
Docusign Envelope ID: CCCFC4EB-8EED-49D6-A95D-ACB47607B573
RESOLUTION NO. PC 3-26
A RESOLUTION OF THE PLANNING AND ENVIRONMENTAL QUALITY
COMMISSION OF THE CITY OF GARDENA, CALIFORNIA
RECOMMENDING THAT THE CITY COUNCIL APPROVE ZONE
CHANGE NO. 3-25, AN ORDINANCE AMENDING PORTIONS OF TITLE 18 (ZONING) OF THE MUNICIPAL CODE RELATING TO REVIEW
PROCESS AND STANDARDS FOR MECHANICAL/ROBOTIC PARKING
STRUCTURES, AND ON -SITE PARKING STANDARDS FOR
COMMERCIAL USES ON GARDENA BOULEVARD BETWEEN
NORMANDIE AVENUE AND VERMONT AVENUE
RECITALS
A. Ordinance No. 1693 was adopted on July 10, 2007 , which amended Title 18 (Zoning) of the Gardena Municipal Code (GMC) to allow deviation from off -street/on- site parking requirements for commercial uses on Gardena Boulevard between Normandie Avenue and Vermont Avenue (Downtown Gardena) through a one -time payment of a parking in-lieu fee.
B. The practice of many businesses/property owners opting to pay the one - time parking in-lieu fee has resulted in ongoing traffic congestion and circulation issues within the downtown area. Eliminating this exemption is necessary to help ensure that new development more adequately accommodates its parking demand and reduces strain on public streets.
C. Ordinance No. 1848 was adopted on February 28, 2023, which amended Title 18 (Zoning) of the GMC to establish and adopt development standards for Housing Overlays and the Very High Density Multifamily Residential Zone (R -6), which included provisions allowing robotic or mechanical parking structures by right to satisfy the City’s off-street parking requirements.
D. It is necessary to amend the GMC to require approval of a Conditional Use Permit for robotic or mechanical parking structures and adopt related development standards to provide the City necessary oversight to ensure such facilities are compatible with surrounding uses and to address potential impacts over time.
E. On January 20, 2026, the Planning and Environmental Quality Commission conducted a duly noticed public hearing as prescribed by law to consider the code amendment, gave all persons interested therein an opportunity to be heard, and voted to recommend the City Council’s approval and adoption of the code amendment.
F. Based on review of the State California Environmental Quality Act (CEQA) Guidelines, the Planning and Environmental Quality Commission finds and determines that the ordinance is statutorily exempt from CEQA under Section 15061(b)(3) of the PC Resolution No. 3-26 ZTA #3-25
January 20, 2026
2 CEQA Guidelines, which provides that CEQA only applies to projects that have the potential for causing a significant effect on the environment. The ordinance would not result in physical change in the environment and does not involve any construction or additions to any existing structures.
G. The Planning and Environmental Quality Commission has duly considered all information presented to it, including written staff reports and any testimony provided at the public hearing, with all testimony received being made a part of the public record.
NOW, THEREFORE, THE PLANNING AND ENVIRONMENTAL QUALITY
CONTROL COMMISSION OF THE CITY OF GARDENA DOES HEREBY RESOLVE AS FOLLOWS:
SECTION NO. 1. The above recitals are true and correct and are incorporated herein as if set forth in full.
SECTION NO. 2. Based on all evidence presented and the findings set forth herein, Zone Text Amendment No. 3-25 is hereby found to be consistent with the Gardena General Plan and the implementation thereof, and that the public necessity, convenience, general welfare, and good zoning practices require Zone Text Amendment No. 3-25.
SECTION NO. 3. Pursuant to the State California Environmental Quality Act (CEQA) Guidelines, the Planning Commission finds and determines that the ordinance is statutorily exempt from CEQA under Section 15061(b)(3) of the CEQA Guidelines, which provides that CEQA only a pplies to projects that have the potential for causing a significant effect on the environment. The ordinance would not result in direct or indirect physical change in the environment and does not involve any construction or additions to any existing structures.
SECTION NO. 4. The Secretary is instructed to forward a copy of this Resolution to the City Council for their attention in the manner as prescribed by law and this Resolution shall go into force and effect upon its adoption.
SECTION NO. 5. Based on all the documents, oral testimony, and other evidence presented in connection with this proceeding and in this Resolution, the Planning and Environmental Quality Commission recommends that the City Council approve Zone Text Amendment No. 3-25.
EXHIBIT A
ORDINANCE NO.
AN ORDINANCE OF THE CITY OF GARDENA,
CALIFORNIA, AMENDING PORTIONS OF TITLE 18
(ZONING) OF THE MUNICIPAL CODE RELATING TO
REVIEW PROCESS AND STANDARDS FOR
MECHANICAL/ROBOTIC PARKING STRUCTURES, AND
ON-SITE PARKING STANDARDS FOR COMMERCIAL
USES ON GARDENA BOULEVARD BETWEEN
NORMANDIE AVENUE AND VERMONT AVENUE
WHEREAS, the City of Gardena has determined that it is necessary to amend Title 18 of the Gardena Municipal Code relating to the review process and development/design standards for mechanical/robotic parking structures, and on-site/off-street parking standards for Gardena Boulevard between Normandie Avenue and Vermont Avenue (the parking in-lieu fee); and
WHEREAS, on January 20, 2026, the Planning and Environmental Quality Commission conducted a duly noticed public hearing as prescribed by law regarding Zone Text Amendment No. 3-25. At the conclusion of the public hearing, the Planning Commission adopted Resolution No. 3-26, recommending that the City Council approve Ordinance No. ###; and
WHEREAS, on _______, the City Council conducted a duly noticed public hearing as prescribed by law regarding this ordinance approving Code Amendment No. ______; and
WHEREAS, the City Council has duly considered all information presented to it, including written staff reports and any testimony provided at the public hearing, with all testimony received being made a part of the public record.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF GARDENA, CALIFORNIA DOES ORDAIN AS FOLLOWS:
SECTION 1. Amendment to Chapter 18.18A. Subsection I.2. of Section
18.18A.040 (Development standards) of Title 18 (Zoning) of the Gardena Municipal Code is hereby amended to read as follows:
2. Tandem and mechanical parking:
a. Residential parking may be satisfied by tandem spaces where parking is assigned to a single residential unit. Two-level mechanical vehicle lifts are Resolution No. 3-26
Zone Text Amendment No. 03-25
January 20, 2026
to be treated as tandem and subject to the same restrictions. Unassigned parking and parking assigned to different units may not be tandem; b. Mechanical or robotic parking structures, other than two-level mechanical vehicle lifts, are may be permitted subject to the approval of a conditional use permit and shall comply with off-street parking standards set forth in Chapter 18.40 and development standards applicable to residential structures in this chapter and Chapter 18.42.
SECTION 2. Amendment to Chapter 18.20. Subsection A.6. of Section
18.20.050 (Property development standards) of Title 18 (Zoning) of the Gardena Municipal Code is hereby amended to read as follows:
6. Off-Street Parking.
a. Residential. Enclosed parking spaces shall be provided at the rate of one space for every studio and one bedroom unit and two spaces for every unit which is two or more bedrooms. In addition, guest parking shall be provided at the rate of one-fourth space per unit and all fractional spaces shall be rounded up to a full parking space.
b. Commercial. Parking for the commercial portion of any building shall be required at the rate set forth in Chapter 18.40, but may be satisfied by paying an in-lieu parking fee in accordance with Section 18.40.120.
Parking may be reduced to the extent such reduction is justified by a parking demand study submitted by the applicant and approved by the city.
c. Except as specified herein, all other provisions of Chapter 18.40 shall apply.
SECTION 3. Amendment to Chapter 18.21. Subsection H.2. of Section
18.21.050 (Development standards for all housing overlays) of Title 18 (Zoning) of the Gardena Municipal Code is hereby amended to read as follows:
2. Tandem and mechanical parking:
a. Residential parking may be satisfied by tandem spaces where parking is assigned to a single residential unit. Two-level mechanical vehicle lifts are to be treated as tandem and subject to the same restrictions.
Unassigned parking and parking assigned to different units may not be tandem;
b. Mechanical or robotic parking structures that accommodate three or more vehicles are may be permitted subject to the approval of a conditional use permit and shall comply with off-street parking standards set forth in Chapter Resolution No. 3-26
Zone Text Amendment No. 03-25
January 20, 2026
18.40 and development standards applicable to a residential structure in this chapter and Chapter 18.42;
SECTION 4. Amendment to Chapter 18.40. Section 18.40.120 (Parking for the Gardena Boulevard commercial uses) of Title 18 (Zoning) of the Gardena Municipal Code is hereby amended to read as follows:
New or expanded commercial uses located on Gardena Boulevard between Normandie Avenue and Vermont Avenue may satisfy the parking requirements set forth in Section 18.40.040 as follows:
A. On-site parking shall be provided for spaces required due to increased square footage above and beyond existing square footage, as well as for any parking spaces that were previously provided on site.
B. Where the business is short parking spaces based on the original square footage, the deficiency in parking may be met by providing an in-lieu fee for each space in an amount determined by resolution of the city council.
Funds collected pursuant to this subsection shall be nonrefundable and shall be placed in a special account to be utilized exclusively for providing off-street parking in the area described above in the introductory paragraph.
CB. No additional parking spaces or in-lieu fees shall be required where there is only a change in business and/or use without an increased intensification of parking requirements for the new business and/or uses and there is no additional square footage being added to the business.
SECTION 5. Amendment to Chapter 18.42. The Gardena Municipal Code is hereby amended to add Section 18.42.125 (Mechanical or robotic parking structures) to read as follows:
A. Mechanical or robotic parking structures may be permitted in conjunction with a multi-family residential development subject to the approval of a conditional use permit and shall comply with all of the following:
1. Residential development standards applicable to the underlaying zone.
2. Off-street parking standards listed in Chapter 18.40.
3. Applicable standards in this chapter.
4. Mechanical and robotic parking structure design and performance standards.
Resolution No. 3-26
Zone Text Amendment No. 03-25
January 20, 2026
a. All automobile parking stalls included in a mechanical lift or robotic parking structure shall meet the minimum dimensions listed in the table below:
b. The lift equipment or computerized parking structure shall meet any applicable building, mechanical, electrical, and fire code requirements as approved by the Building and Safety Division and the Fire Department.
c. The mechanical and robotic parking structure shall be screened by the primary multifamily residential structure from the public right-of-way and/or adjacent single-family residential uses in addition to the required screen walls listed in Chapter 18.40.
5. A noise impact technical report is required for any mechanical or robotic parking structure proposed to be located within 50 feet from any residential use or other use considered as a sensitive receptor such as, but not limited to, schools, parks, libraries, hospitals, care facilities, and religious facilities.
SECTION 6. Effective Date. This Ordinance shall take effect and be in force thirty (30) days from and after the date of its passage.
SECTION 7. Certification. The Mayor shall sign and the City Clerk shall certify to the passage and adoption of this Ordinance and shall cause the same to be published or posted in the manner required by law.
PARKING STALL DIMENSION
Clear Width (minimum) 8'-0"
Clear Height
(minimum) 7'-0"
Clear Depth (minimum) 18'-0"
Resolution No. 3-26
Zone Text Amendment No. 03-25
January 20, 2026
PASSED, APPROVED AND ADOPTED on the ______ day of ________, 2026.
TASHA CERDA, Mayor
ATTEST:
MINA SEMENZA, City Clerk
APPROVED AS TO FORM:
CARMEN VASQUEZ, City Attorney
City of Gardena
Gardena City Council
Meeting
AGENDA REPORT
SUMMARY
Agenda Item No. 17A.
Section: DEPARTMENTAL
ITEMS - PUBLIC WORKS
Meeting Date: April 14,
2026
TO: THE HONORABLE MAYOR AND MEMBERS OF THE GARDENA CITY COUNCIL AGENDA TITLE: RESOLUTION NO. 6725, Approving the Engineer's Report for the Gardena Consolidated Street Lighting Assessment District for fiscal year 2026-2027, Declaring its Intention to Levy and Collect Assessments Under the Gardena Consolidated Street Lighting District for Fiscal Year 2026-2027, and Setting a Time and Place for Hearing Protests in Relation Thereto (Public Hearing: May 12, 2026) COUNCIL ACTION REQUIRED:
Staff Recommendation: Adopt Resolution NO. 6725
RECOMMENDATION AND STAFF SUMMARY:
Staff respectfully recommends that City Council adopt Resolution NO. 6725 approving the Engineer's Report for the Gardena Consolidated Street Lighting Assessment District for fiscal year 2026-2027, declaring its intention to levy and collect assessments for fiscal year 2025-2026 and appointing a time and place for a Public Hearing thereon (Public Hearing: May 12, 2026).
On July 28, 2009, the City Council approved and confirmed an increase in the assessment of the City of Gardena's Consolidated Street Lighting District through Proposition 218 proceedings, and as described in the attached Engineer's Report.
The Consolidated Street Lighting District pays for all energy costs, construction and maintenance costs of the street lighting.
FISCAL IMPACT/COST:
Budget Amount: $964,856.23 for Fiscal Year 2026-2027
Funding Sources: Assessment District (Fund 30)
APPROVED:
___________________________
Clint Osorio, City Manager
Attachments
Gardena SLD Engineer's Report 2026-27.pdf
Consolidated Street Lighting District Resolution No. 6725.pdf
CITY OF GARDENA
CONSOLIDATED STREET LIGHTING
ASSESSMENT DISTRICT
ENGINEER’S REPORT
2026-2027
April 2, 2026
CITY OF GARDENA
TA B L E O F CO N T E N T S
ENGINEER'S REPORT
CITY OF GARDENA
CONSOLIDATED STREET LIGHTING DISTRICT
FISCAL YEAR 2026-2027
Signatures
................................ ................................ ................................ ............................. 2 Definition & General Information
................................ ................................ ................................ ............................. 3 Summary
................................ ................................ ................................ ............................. 5 Report
................................ ................................ ................................ ............................. 7 Part A: Description of Improvements 7
Part B: Estimate of Cost 8
Part C: Assessment District Diagram 10
Part D: Method of Apportionment of Assessment 11
Part E: Property Owner List & Assessment Poll 12
Part F: Financial Study 13
Appendix A: Financial Study Detail
................................ ................................ ................................ ............................. 15 CITY OF GARDENA
ENGINEER'S REPORT
CITY OF GARDENA
CONSOLIDATED STREET LIGHTING ASSESSMENT DISTRICT
FISCAL YEAR 2026-2027
The undersigned acting on behalf of the City of Gardena, respectfully submits the enclosed Engineer’s Report as directed by the Gardena City Council pursuant to the provisions of Article XIIID, Section 4 of the California Constitution, provisions of the Landscaping and Lighting Act of 1972, and Section 22500 et al of the California Streets and Highways C ode. The undersigned certifies that he is a Professional Engineer, registered in the State of California.
DATED:
BY: Jeffrey M. Cooper, P.E.
P.E. No. 31572
__________
I HEREBY CERTIFY that the enclosed Engineer's Report, together with Assessment Roll and Assessment Diagram was filed with me on the_______day of___________ , 2026.
Mina Semenza, City Clerk
City of Gardena, Los Angeles
County, California
By:
I HEREBY CERTIFY that the enclosed Engineer's Report, together with Assessment Roll and Assessment Diagram was approved and confirmed by the City Council of the City of Gardena, Los Angeles, California, on the _ day of _______ , 2026.
Mina Semenza, City Clerk, City of
Gardena, Los Angeles County,
California
By:
April 2, 2026
City of Gardena
Consolidated Street Lighting District FY 2026-2027
DEFINITION & GENERAL INFORMATION
Assessment District
An Assessment District is a financing mechanism under The California Streets and Highways Code, Division 10 and 12, which enables cities, counties, and special districts organized for the purpose of aiding in the development or improvement to, or within the district, to designate specific areas as Assessment Districts, with the approval of a majority of the landowners based on financial obligations, and allows these Districts to collect funds to finance maintenance efforts or construct improvements. Assessment Districts help each property owner pay a fair share of the costs of such improvements or maintenance obligations over a period of years at reasonable rates and insures that the cost will be spread to all properties that receive direct and special benef it by the improvements constructed or maintained. “Assessment” means any levy or charge by an agency upon real property that is based upon the special benefit conferred upon the real property by a public improvement or service that is imposed to pay the capital cost of the public improvement, the maintenance and operation expenses of the public improvement, or the cost of the service being provided. “Assessment” includes, but is not limited to, “Special Assessment,” “Benefit Assessment,” and “Maintenance Assessment.”
CITY OF GARDENA
Current Annual Administration
As required by the Landscaping and Lighting Act of 1972, this Engineer’s Report describes the improvements to be operated, maintained, and serviced by the District, provides an estimated budget for the District, describes the properties and zones of benefi t within the District, describes the method used to allocate the costs to the benefiting properties within the District, and lists the proposed assessments to be levied upon each assessable lot or parcel within the District.
Plans and specifications for the improvements provided by the District are on file in the office of the Public Works Engineering Division and are incorporated into this report by reference. The plans and specifications detail the location, class and type of each existing street lighting fixture. The fixtures are delineated on a plan of the City and the site of each fixture is detailed indi cating attributes of the fixture. The attributes include the intensity of the lamp and type of light. A summary is also incorporated listing the number and totals for each type of luminaries.
Payment of the assessment is placed on each property owner’s secured property tax roll bill. All funds collected through the assessment must be placed in a special fund and can only be used for the purposes stated in this report.
CITY OF GARDENA
ENGINEER'S REPORT PREPARED PURSUANT TO THE PROVISIONS OF THE LANDSCAPING AND LIGHTING ACT OF 1972
SECTION 22500 THROUGH 22679
OF THE CALIFORNIA STREETS AND HIGHWAYS CODE
Pursuant to Part 2 of Division 15 of the Streets and Highways Code of the State of California, and in accordance with the Resolution of Initiation adopted by the Council of the City of Gardena, County of Los Angles, State of California, in connection with the proceedings for:
CITY OF GARDENA
CONSOLIDATED STREET LIGHTING ASSESSMENT DISTRICT
Herein after referred to as the "Assessment District" or “District”, I, Jeffrey M. Cooper, P.E., the duly appointed ENGINEER OF WORK, submit herewith the "Report" consisting of six (6) parts as follows:
PART A: DESCRIPTION OF IMPROVEMENTS
Part A describes the improvements in the District. Plans and specifications for the improvements showing and describing the general nature, location, and extent of the improvements are on file in the Office of the City Clerk of the City of Gardena; and are incorporated herein by reference.
PART B: ESTIMATE OF COST
Part B contains an estimate of the cost of the proposed improvements for FY 2026-2027, including incidental costs and expenses in connection therewith.
PART C: ASSESSMENT DISTRICT DIAGRAM
The Diagram of the Assessment District Boundaries showing the exterior boundaries of the Assessment District, the boundaries of any zones within the Assessment District, and the lines and dimensions of each lot or parcel of land within the Assessment District.
The lines and dimensions of each lot or parcel within the Assessment District are those lines and dimensions shown on the maps of the Assessor of the County of Los Angeles for the year when this Report was prepared. The Assessor's maps and records are incorporated by reference herein and made part of this Report.
PART D: METHOD OF APPORTIONMENT OF ASSESSMENTS
The method of apportionment of assessments, indicating the proposed assessment of the total amount of the costs and expenses of the improvements upon the several lots and parcels of land within the Assessment District, in proportion to the estimated benefi ts to be received by such lots and parcels.
CITY OF GARDENA
PART E: PROPERTY OWNER LIST & ASSESSMENT ROLL
Part E includes a list of the names and addresses of the owners of real property within the Assessment District, as shown on the last equalized roll of the Assessor of the County of Los Angeles are included in Part E. The list is keyed to the records of the County Assessor of the County of Los Angeles, which are incorporated herein by reference.
PART F: FINANCIAL STUDY AND PROPOSED RATE INCREASE
Part F includes the Financial Study performed for fiscal year 2026-2027 of the base year. This section includes detailed information regarding the proposed rate increase for the District for the fiscal year and provides estimates for future years.
CITY OF GARDENA
PART A
DESCRIPTION OF IMPROVEMENTS
The facilities, which have been constructed within the boundaries of the City of Gardena District, and those which may be subsequently constructed, will be operated, maintained and serviced as generally described as follows:
DESCRIPTION OF IMPROVEMENTS
FISCAL YEAR 2026-2027
CITY OF GARDENA
CONSOLIDATED STREET LIGHTING ASSESSMENT DISTRICT
The facilities to be maintained and serviced include an annexed area called the West Gardena area in 1995. The costs for the street lighting were paid through the County of Los Angeles by an ad valorem tax and assessment. The lighting costs were transferred to the City of Gardena in 1997 after the removal of the County Lighting District and Assessment District. The ad valorem tax charge of the County for lighting was also transferred to the City of Gardena to fund the lighting costs in this area in 1997.
The plans for lighting reflect the addition of the new lighting.
The plans and specifications for the improvements, showing and describing the general nature, location and the extent of the improvements, are on file in the office of Public Works, and are incorporated herein by reference.
CITY OF GARDENA
PART B
ESTIMATE OF COST
The 1972 Act provides that the total cost of installation, construction, operation, maintenance and servicing of the improvements described in Part A can be recovered by the District. Maintenance can include the repair and replacement of existing facilitie s. Servicing can include electrical and associated costs from a public utility. Incidental expenses, including administration of the District, engineering fees, legal fees, printing, posting and mailing of notices, and all other costs associated with the annual assessment process can also be included.
The estimated costs of the operation, servicing and maintenance of the improvements for Fiscal Year 2026-2027, as described in Part A, are summarized herein, and described in the Proposed Budgets on the subsequent pages.
The significant increases in energy costs experienced in early 2001 are expected to continue through 2026-2027. The City had anticipated increases in energy costs for several years and had set aside reserves to pay for the increases. However, the depletion of this reserve has warranted an increase in assessments.
The City of Gardena, in 2009 -2010 fiscal year increased the assessment by conducting an assessment ballot (Proposition 218) proceeding by mailed ballots for approval of the increase , in accordance with Section 53753 of the Government Code and Section 4000 of the Election's Code.
The increase in assessments in the FY2009-2010 did not allow the District to wipe out its negative reserve in the 2010 -2011 and 2011 -2012 fiscal year s; however, for 2012-2013 fiscal year, with
2.09% increase, the reserve started a modest gain; and for 20 21-2022 fiscal year, with projected
0.9% increase the District is also projected to build up reserves in the positive. The fiscal year 2022- 2023 7.5% increase for the District helped further build up resources. The increase for fiscal year 2023-2024 was 5.8%. The increase for fiscal year 2024 -2025 was 2.5%. The increase for fiscal year 2025-2026 was 3.3%. For fiscal year 2026-2027, the increase is projected to be 3.0%.
The 1972 Act requires that a special fund be set up for the revenues and expenditures of the District.
Funds raised by assessment shall be used only for the purpose as stated herein. Any balance or deficit remaining on July 1 must be carried over to the next fiscal year.
The LED Street Light Conversion was completed in year 2019. However, savings will be minimal, if any, until the recouping cost period of 20 years is completed.
City of Gardena
Consolidated Street Lighting Districts FY 2026-2027
CITY OF GARDENA
CONSOLIDATED STREET LIGHTING DISTRICT
ACCT# 152.51
CALCULATION OF ASSESSMENT
2026-2027
TOTAL ESTIMATED COSTS OF THE GARDENA CONSOLIDATED STREET LIGHTING DISTRICT $1,189,043
REVENUE (3.0% Increase); per Consumer Price Index (CPI) on page 13
ZONE DESCRIPTION $/FRONT FOOT TOTAL FRONTAGE ASSESSMENT
1 RESIDENTIAL 1.101 521,506 $574,178.11
2 COMMERCIAL 2.443 79,716 $194,746.19
3 MANUFACTURING 1.624 101,482 $164,806.77
4 GARDENA BOULEVARD 2.443 5,022 $12,268.75
2 UTILITIES 2.443 6,633 $16,204.42
PUBLIC AGENCY 0.240 11,050 $2,652.00
TOTAL $964,856.23
CITY OF GARDENA
PART C
ASSESSMENT DISTRICT DIAGRAM
Diagrams showing the exterior boundaries of the City of Gardena Consolidated Street Lighting Assessment District and the lines and dimensions of each lot or parcel of land within the District are in the Public Works Director’s Office and referenced herein.
The lines and dimensions of each lot or parcel within the District are those lines and dimensions shown on the maps of the Assessor of the County of Los Angeles, for the year in which this report was prepared. The Assessor’s maps and records are incorporat ed by reference herein and made part of this report.
CITY OF GARDENA
PART D
METHOD OF APPORTIONMENT OF ASSESSMENT
GENERAL
Part 2 of Division 15 of the Streets and Highways Code, the Landscaping and Lighting Act of 1972, permits the establishment of assessment districts by public agencies for the purpose of providing certain public improvements, which include operation, mainte nance and servicing of street lights, traffic signals, and landscaping.
Section 22573 of the Landscape and Lighting Act of 1972 requires that maintenance assessments be levied according to benefit rather than according to assessed value. This Section States:
"The net amount to be assessed upon lands within an assessment district may be apportioned by any formula or method which fairly distributes the net amount among all assessable lots or parcels in proportion to the estimated benefit to be received by each such lot or parcel from the improvements.”
In addition, Article XIIID, Section 4(a) of the California Constitution limits the amount of any assessment to the proportional special benefit conferred on the property.
The Act permits the designation of benefit zones within any individual assessment district if "by reasons or variations in the nature, location, and extent of the improvements, the various areas will receive different degrees of benefit from the improvemen t" (Sec. 22574). Thus, the 1972 Act requires the levy of a true "benefit assessment" rather than a "special tax."
ASSESSMENT METHODOLOGY
The total operation, maintenance, and servicing costs for the assessment district improvements are apportioned in accordance with the benefit spread described below.
General versus Special Benefit
The assessment cost for each parcel is determined by the front linear footage of the property, multiplied by the applicable rate for that parcel. If the property faces more than one street or alley, the cost is determined by the linear footage of the longest side facing a street/alley plus 10 percent of the rest of the sides facing a street/alley, multiplied by the rate. Rate of assessment is determined by zone. The rates are determined by the quantity of street lighting in each zone, spacing frequency being most intense in commercial zone and least intense in residential zones and near public properties. This method of apportionment ensures that properties are not assessed in excess of the proportional special benefit conferred.
CITY OF GARDENA
PART E
PROPERTY OWNER LIST & ASSESSMENT ROLL
The total proposed assessment for Fiscal Year 2026-2027 and the amount of proposed assessment apportioned to each lot or parcel within the District, as shown on the latest roll at the County of Los Angeles Assessor's Office, are contained in the Assessment Rolls and the description of each lot or parcel is part of the records of the Assessor of the County of Los Angeles and these records are, by reference, made part of this Report.
The included tracts of land have been subdivided into four zones, with each of subject lots benefiting from the improvements being maintained. Therefore, the costs associated with the street lighting within and directly adjacent to each tract, as shown in Part B of this report will be apportioned to pay in accordance with the property frontage within each zone.
CITY OF GARDENA
PART F
FINANCIAL STUDY
Staff has performed a financial study of the District for the 2026-2027 FY to ensure that the maintenance and improvement costs for the district were funded appropriately.
In FY 2009-2010, through Prop. 218, the City of Gardena approved increased assessments for the District as indicated in the summary below. Additionally, the study recommended adjustment of future annual assessments as needed, per the Consumer Price Index (CPI), All Urban Consumers, for the Los Angeles, Long Beach, and Anaheim Areas, not to exceed 50% of operating reserves. The actual assessments levied in any fiscal year will be approved by the City Council. Please see “Appendix A” for a copy of the detailed Financial Study for the District.
Since the increase in the assessments was approved, benefit areas within the District will continue to be maintained at the highest service levels. The proposed increase includes language to adjust assessments per the CPI, future votes regarding this annual increase will not be needed; however, each year staff will present the annual Engineer’s Reports with the recommended assessment amount. For FY 2026-2027, an increase of 3.0% is recommended.
FY 08/09 FY 09/10 FY 10/11 FY 11/12 FY 12/13 FY 13/14 FY 14/15 FY 15/16 CPI Rate Increase N/A Actual Actual Actual Actual Actual Actual Percentage Assessment
Rate Increase 28.00% 1.8554% 1.4056% 2.09% 1.96% 0.7737% 0.726% Approximate Assessment
(Annual) X 1,000 $485 $620 $627 $636 $649 $658 $661 $665 FY 16/17 FY 17/18 FY 18/19 FY 19/20 FY 20/21 FY 21/22 FY 22/23 FY 23/24 CPI Rate Increase Actual Actual Actual Actual Actual Actual Actual Actual Percentage Assessment
Rate Increase 3.1% 2.1% 3.5% 3.2% 3.4% 0.9% 7.5% 5.8%
Approximate Assessment
(Annual) X 1,000 $682 $696 $720 $746 $771 $778 $837 $886 FY 24/25 FY 25/26 FY 26/27
CPI Rate Increase Actual Actual Actual
Percentage Assessment
Rate Increase 2.5% 3.3% 3.0%
Approximate Assessment
(Annual) X 1,000 $908 $937 $965
LIGHTING ASSESSMENT DISTRICT
CITY OF GARDENA
OPERATING EXPENDITURES
The following information describes the types of costs associated with maintaining the District, as well as information regarding the proposed rate increase. The financial study projects the expenditures and revenues through Fiscal Year 2026-2027.
CPI – Annual Increase According to Need
In FY 2009-2010, the City approved a recommended scaled increase in assessments to occur over a two year period for the District. After the initial scaled increase, the assessments are increased annually per the CPI on an as needed basis ( 0.9% per year for the study). Should the district reach a reserve level not -to-exceed 50% of operating revenues, the assessment will not be increased per the CPI for the year. Each year, the City will evaluate the reserves and the expenditures, and inform the residents whether or not an increase per the CPI will be necessary for the upcoming year.
Maintenance Upgrades/Projects
The line item in the proposed budget and financial study for “Maintenance Upgrades/Projects” includes any new projects such as new conduits, wiring, lights, or poles, etc. that can be scheduled for the upcoming year. Often, City staff receives input from residents on any projects that a district may like to see completed. The proposed budget incl udes an estimate for these projects, and if the amount actually spent each year is less than the estimate, the remaining balance returns to the District’s reserve fund. Should the amount exceed the estimate, then the funds needed would be taken from the reserve fund.
Reserve Fund
Any remaining funds not used from the previous year are added to the District’s reserve fund.
The reserve fund should have sufficient funds available to lessen the fiscal impact of any unforeseen expenditures. Staff is recommending that the district maintain a healthy reserve balance of an amount not-to-exceed 50% of the total annual assessments.
CITY OF GARDENA
ESTIMATE OF COSTS*
2026-2027
APPENDIX A
APPENDIX A
FINANCIAL STUDY DETAIL
Utility Owned Systems
(LS-1) ENERGY COST $786,189
CITY-OWNED SYSTEMS
(LS-2) ENERGY COST $35,042
Subtotal $821,231
FUEL CONTINGENCY (5%) $41,062
SubTotal $862,293
OVERHEAD $27,600
OTHER PROGRAM EXPENSES $49,150
CAPITAL OUTLAY $250,000
CONTINGENCY
TOTAL ESTIMATED COST OF STREET LIGHTING DISTRICT $1,189,043
* Expenses are provided by the City of Gardena Finance Department
CITY OF GARDENA
1 RESOLUTION NO. 6725
A RESOLUTION OF THE CITY COUNCIL OF THE CITY
OF GARDENA, CALIFORNIA, APPROVING THE
ENGINEER’S REPORT FOR THE GARDENA
CONSOLIDATED STREET LIGHTING ASSESSMENT
DISTRICT FOR FISCAL YEAR 202 6-2027, DECLARING
ITS INTENTION TO LEVY AND COLLECT
ASSESSMENTS UNDER THE GARDENA
CONSOLIDATED STREET LIGHTING ASSESSMENT
DISTRICT FOR FISCAL YEAR 202 6-2027 AND SETTING
A TIME AND PLACE FOR HEARING PROTESTS IN
RELATION THERETO (PUBLIC HEARING: May 12, 2026)
WHEREAS, the City of Gardena, California previously established the Gardena Consolidated Street Lighting Assessment District, and;
WHEREAS, on Feb. 10, 2026, the City Council of the City of Gardena, California, adopted Resolution No. 6 723 that requires City Council to direct the City Engineer to prepare and file a report according to the provisions of the "Landscaping and Lighting Act of 1972" of the California Streets and Highways Code, Division 15, Part 2, for assessments to be levied upon and collected through the Gardena Consolidated Street Lighting Assessment District for fiscal year 2026-2027, and;
WHEREAS, the Engineer’s Report bearing the date of April 2, 202 6, was prepared and filed with the City Clerk in conformity with the provisions of the California Streets and Highways Code, and contains an estimate of the revenues and costs of the improvements, a diagram for the assessment district, and an assessment of the estimated revenues and costs of the improvements, and;
WHEREAS, the City Clerk has presented the Engineer's Report to the City Council, and said Council has examined and considered the Engineer's Report and is satisfied with all the items contained in Engineer's Report, and;
WHEREAS, the Engineer’s report further identifies the need for an annual cost of living adjustment for Fiscal Year 2026-2027 in order to meet that year’s costs of operations and maintenance, said adjustment to be made in an amount not to exceed the annual increase over the previous year in the All Items Consumer Price Index (CPI) in the Los Angeles-Long Beach-Anaheim, CA area, and;
WHEREAS, the proposed assessment and the cost of living increase was authorized in fiscal year 2009-2010 through an assessment ballot (Prop. 218) proceeding by mailed ballots in accordance with Section 53753 of the Government Code and Section 4000 of the Elections Code
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF GARDENA , CALIFORNIA, DOES HEREBY FIND, DETERMINE, AND RESOLVE, AS FOLLOWS:
Docusign Envelope ID: 76D1F36E-EA4D-83AD-8025-8D92C91DAEB9 RESOLUTION NO. 6689
2 SECTION 1. The Engineer's Report bearing the date of April 2, 202 6, was prepared and filed with the City Clerk in conformity with the provisions of the Calif ornia Streets and Highways Code, Division 15, Part 2, Landscaping and Lighting Act of 1972.
SECTION 2. The City Council approves the Engineer's Report as filed and sets a public hearing for Tuesday, May 12, 2026, at 7:30 p.m. in the Gardena Council Chambers, 1700 West 162nd Street, in the City of Gardena, California to consider the levy and collection of the assessment for the Gardena Consolidated Street Lighting Assessment District for Fiscal Year 2026-2027 inclusive of an annual cost of living adjustment of 3.0%.
SECTION 3. The City Clerk or designee is authorized and directed to give notice of the hearing in time, form and manner as required by the California Streets and Highways Code, Division 15, Part 2, Landscaping and Lighting Act of 1972.
SECTION 4. That this Resolution shall be effective immediately.
BE IT FURTHER RESOLVED that the City Clerk shall certify to the passage and adoption of this Resolution; shall cause the same to be entered among the original Resolutions of said City; and shall make a minute of the passage and adoption thereof in the records of the proceedings of the City Council of said City in the minutes of the meeting at which the same is passed and adopted.
Passed, approved, and adopted this 14 day of _April , 2026.
TASHA CERDA, Mayor
ATTEST:
MINA SEMENZA, City Clerk
APPROVED AS TO FORM:
CARMEN VASQUEZ, City Attorney
Docusign Envelope ID: 76D1F36E-EA4D-83AD-8025-8D92C91DAEB9
City of Gardena
Gardena City Council
Meeting
AGENDA REPORT
SUMMARY
Agenda Item No. 17B.
Section: DEPARTMENTAL
ITEMS - PUBLIC WORKS
Meeting Date: April 14,
2026
TO: THE HONORABLE MAYOR AND MEMBERS OF THE GARDENA CITY COUNCIL AGENDA TITLE: RESOLUTION NO. 6724, Approving the Engineer's Report for the Gardena Artesia Boulevard Landscaping Assessment District for Fiscal Year 2026-2027, Declaring its Intention to Levy and Collect Assessments Under the Gardena Artesia Boulevard Landscaping Assessment District for Fiscal Year 2026-2027, and Appointing a Time and Place for a Public Hearing Thereon (Public Hearing: May 12, 2026) COUNCIL ACTION REQUIRED:
Staff Recommendation: Adopt Resolution NO. 6724
RECOMMENDATION AND STAFF SUMMARY:
Staff respectfully recommends that Council adopt Resolution No. 6724, approving the Engineer's Report pursuant to the requirements of Resolution 6724, regarding the Gardena Artesia Boulevard Landscaping Assessment District for fiscal year 2026-2027, declaring its intention to levy and collect assessments under the Gardena Artesia Boulevard Landscaping Assessment District for the fiscal year 2026-2027, and appointing a time and place for a Public Hearing thereon (Public Hearing: May 12, 2026).
Artesia Boulevard Landscaping Assessment District between Normandie Avenue and Dalton Avenue was established and commenced in fiscal year 1994-1995 and Artesia Boulevard Landscaping Assessment District between Denker Avenue and Western Avenue was established and commenced in fiscal year 2001-2002.
The assessment will pay for the servicing and maintenance costs of landscaping and appurtenant improvements within the median island on Artesia Boulevard between Western Avenue and Normandie Avenue.
FISCAL IMPACT/COST:
Budget Amount: $21,662 for Fiscal Year 2026-2027
Funding Sources: Assessment District
APPROVED:
___________________________
Clint Osorio, City Manager
Attachments
Gardena Landscape Engineer's Report 2026-27.pdf
Artesia Landscaping Distrct Resolution No. 6724.pdf
CITY OF GARDENA
GARDENA ARTESIA BOULEVARD
LANDSCAPING ASSESSMENT DISTRICT
ENGINEER'S REPORT
2026-2027
April 2, 2026
CITY OF GARDENA
GARDENA ARTESIA BOULEVARD
LANDSCAPING ASSESSMENT DISTRICT
ENGINEER'S REPORT
2026-2027
Prepared according to the provisions of the Landscaping and Lighting Act of 1972, Sections 22500 through 22679 of the California Streets and Highways Code.
According to Part 2 of Division 15 of the Streets and Highways Code of the State of California, and as directed by resolution of the City Council of the City of Gar dena, the City Engineer of the City of Gardena has prepared and submits the Engineer's Report consisting of the following:
1. Vicinity Map
2. Diagram of District
3. Plans and Specifications
4. Estimate of Costs of Maintenance
5. Assessment of Estimated Cost
This report is prepared by:
NV5, INC.
JEFFREY M. COOPER, P.E.
R.C.E. No. 31572
ENGINEER OF WORK
CITY OF GARDENA
STATE OF CALIFORNIA
Dated: April 2, 2026
2026 - 2027
2026 - 2027
2026 - 2027
PLANS AND SPECIFICATIONS 2026-2027
Plans and specifications for the improvements provided by the Gardena Artesia Boulevard Landscaping Assessment District are on file in the office of the Public Works Director/City Engineer and incorporated into this report by reference. The plans detail the improvement on Artesia Boulevard between Western Avenue and Denker Avenue , and between Dalton Avenue and Normandie Avenue. The improvements are the construction, servicing and maintenance of landscaping and appurtenant improvements within the median islands on Artesia Boulevard between Western Avenue and Denker Avenue , and between Dalton Avenue and Normandie Avenue. The maintenance and servicing for the improvements include, but are not limited to, personnel, electrical energy, and utilities such as water, materials, contracting services, and other items necessary for the satisfactory servicing and maintenance of these services.
ESTIMATE OF COSTS OF MAINTENANCE AND SERVICING
The cost of the maintenance and servicing of the improvement was determined by the costs of the annual contractual services for the landscaped median, including personnel, electrical energy, and utilities such as water, materials, and other items necessary for the satisfactory servicing and maintenance of the landscaped median.
ESTIMATE OF COST
WESTERN AVENUE - DENKER AVENUE
FY 2026-2027
The 1972 Act provides that the total cost of the maintenance and services, together with incidental expenses, may be financed from the assessments proceeds. The incidental expenses may include engineering fees, legal fees, printing, mailing, postage, publishing, and all other related costs identified with the district proceedings.
Prorated Estimated
Estimated Incidental Total
Item Description Costs Costs Costs
A. Landscaping Construction, Western to Denker $63,643
Additional Median Design $ 3,600 $76,791
Construction Mgmt Costs @ 15% $ 9,548
B. 1st Annual Payment @ 7% Interest over 5 years $18,728 $26,138 $44,866
C. Annual Landscape Maintenance, Western to Denker $ 4,200 $ 5,862 $10,062
$99,719 $32,000 $131,719
Items A and B are shown for reference only. Item C is the annual landscape maintenance on Artesia Blvd. between Western Ave. and Denker Ave. in the amount of $10,062.
The 1972 Act requires that a special fund be set -up for the revenues and expenditures of the District.
Funds raised by assessment shall be used only for the purpose as stated herein. The City may advance funds to the District, if needed, to ensure adequate cash flow, and will be reimbursed for any such advances upon receipt of assessments. Any surplus or deficit remaining on July 1 must be carried over to the next fiscal year.
PAGE 1 OF 3
CITY OF GARDENA
ARTESIA BLVD. LANDSCAPING
ASSESSMENT DISTRICT
FISCAL YEAR 2026-2027
CALCULATION OF ASSESSMENT
Western Ave. - Denker Ave.
ASSESSOR'S
PARCEL NUMBER ACREAGE ASSESSMENT
6106010014 6.430 $1,909.00
6106010015 1.300 $386.00
6106010018 0.875 $260.00
6106010053 0.096 $28.42
6106010054 0.096 $28.42
6106010055 0.096 $28.42
6106010056 0.096 $28.42
6106010057 0.096 $28.42
6106010058 0.096 $28.42
6106010059 0.096 $28.42
6106010060 0.096 $28.42
6106010061 0.096 $28.42
6106010062 0.096 $28.42
6106010063 0.096 $28.42
6106010064 0.096 $28.42
6106010065 0.096 $28.42
6106010066 0.096 $28.42
6106010067 0.096 $28.42
6106010068 0.096 $28.42
6106010069 0.096 $28.42
6106010070 0.096 $28.42
6106010071 0.096 $28.42
6106010072 0.096 $28.42
6106010073 0.096 $28.42
6106010074 0.096 $28.42
6106010075 0.096 $28.42
6106010076 0.096 $28.42
6106010077 0.096 $28.42
6106010078 0.096 $28.42
6106010079 0.096 $28.42
6106010080 0.096 $28.42
6106010081 0.096 $28.42
SUB-TOTAL $3,379.18
PAGE 2 OF 3
CITY OF GARDENA
ARTESIA BLVD. LANDSCAPING
ASSESSMENT DISTRICT
FISCAL YEAR 2026-2027
CALCULATION OF ASSESSMENT
Western Ave. - Denker Ave.
ASSESSOR'S
PARCEL NUMBER ACREAGE ASSESSMENT
6106010082 0.096 $28.42
6106010083 0.096 $28.42
6106010084 0.096 $28.42
6106010085 0.096 $28.42
6106010086 0.096 $28.42
6106010087 0.096 $28.42
6106010088 0.096 $28.42
6106010089 0.096 $28.42
6106010090 0.096 $28.42
6106010091 0.096 $28.42
6106010092 0.096 $28.42
6106010093 0.096 $28.42
6106010094 0.096 $28.42
6106010095 0.096 $28.42
6106010096 0.096 $28.42
6106010097 0.096 $28.42
6106010098 0.096 $28.42
6106010099 0.096 $28.42
6106010100 0.096 $28.42
6106010101 0.096 $28.42
6106010102 0.096 $28.42
6106010103 0.096 $28.42
6106010104 0.096 $28.42
6106010105 0.096 $28.42
6106010106 0.096 $28.42
6106010107 0.096 $28.42
6106010113 0.854 $253.45
6106010114 0.917 $272.55
6106010115 0.384 $113.68
SUB-TOTAL $1,378.60
PAGE 3 OF 3
CITY OF GARDENA
ARTESIA BLVD.
LANDSCAPING ASSESSMENT
DISTRICT
FISCAL YEAR 2026-2027
CALCULATION OF ASSESSMENT
Western Ave. - Denker Ave.
ASSESSOR'S
PARCEL NUMBER FRONTAGE ASSESSMENT
6106013033 199.000 $831.00
6106013047 411.000 $1,717.00
6106013049 330.000 $1,378.00
6106013053 330.000 $1,378.00
SUB-TOTAL $5,304.00
GRAND TOTAL $10,061.78
ESTIMATE OF COST
DALTON AVENUE - NORMANDIE AVENUE
FY 2026-2027
The estimated cost of the construction, operation, servicing and maintenance of the improvements are summarized below. Only construction costs for median landscaping between Normandie Avenue and Dalton Avenue have been included. All costs include administration and utilities where applicable.
A. Median Landscaping Construction (see details next page) $ 127,400 + Contingencies (+10%) 12,700
City Administration 10,000
$ 150,100
B. Median Landscaping Maintenance $ 11,600
Item A is shown for reference only. Item B is the annual landscape maintenance on Artesia Blvd. between Dalton Ave and Normandie Ave in the amount of $11,600.
The 1972 Act requires that a special fund be set-up for the revenues and expenditures of the District.
Funds raised by assessment shall be used only for the purpose as stated herein. A contribution to the District by the City may be made to reduce assessments, as the City Council deems appropriate.
Any balance or deficit remaining on July 1 must be carried over to the next fiscal year.
CITY OF GARDENA
ARTESIA BLVD. LANDSCAPING
ASSESSMENT DISTRICT
FISCAL YEAR 2026-2027
ACCT. # 152.53
CALCULATION OF ASSESSMENT
Dalton Avenue - Normandie Avenue
ASSESSOR'S
PARCEL NUMBER FRONTAGE (FT) ASSESSMENT
6106-034-001 1028.46 $9,897.00
6106-034-002 176.94 $1,703.00
TOTAL 1205.40 $11,600.00
1 RESOLUTION NO. 6724
A RESOLUTION OF THE CITY COUNCIL OF THE CITY
OF GARDENA, CALIFORNIA, AP PROVING THE
ENGINEER'S REPORT FOR THE GARDENA ARTESIA
BOULEVARD LANDSCAPING ASSESSMENT DISTRICT
FOR FISCAL YEAR 2026- 2027, DECLARING ITS
INTENTION TO LEVY AND COLLECT ASSESSMENTS
UNDER THE GARDENA ARTESIA BOULEVARD
LANDSCAPING ASSESSMENT DISTRICT FOR THE
FISCAL YEAR 2026-2027, AND SETTING A TIME AND
PLACE FOR HEARING PROTESTS IN RELATION
THERETO (PUBLIC HEARING: May 12, 2026)
WHEREAS, the City of Gardena, California, previously established the Gardena Artesia Boulevard Landscaping Assessment District and;
WH
EREAS, on Feb. 10, 2026, the City Council of the City of Gardena, California, adopted Resolution No. 6 722 that requires City Council to direct the City Engineer to prepare and file a report according to the provisions of the "Landscaping and Lighting Act of 1972" of the State of California Streets and Highways Code, Division 15, Part 2, for assessments to be levied upon and collected through the Gardena Artesia Boulevard Landscaping Assessment District for fiscal year 2026-2027, and; WH
EREAS, the Engineer's Report bearing the date of April 2 , 202 6, was prepared and was filed in the office of the City Clerk, and; WH
EREAS, the City Clerk has presented the Engineer's Report to the City Council, and said Council has examined and considered the Engineer's Report and is satisfied with all the items contained in Engineer's Report, and; WH
EREAS, the City Council of the City of Gardena, California, proposes to levy and collect annual assessments according to the "Landscaping and Lighting Act of 1972" of the State of California Streets and Highways Code, Division 15, Part 2, for Fiscal Year 2026-2027
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF GARDENA , CALIFORNIA, DOES HEREBY FIND, DETERMINE, AND RESOLVE, AS FOLLOWS:
SECTION 1. That the Engineer's Report bearing the date of April 2, 2026, was prepared and filed with the City Clerk in conformity with the provisions of the State of California Streets and Highways Code, Division 15, Part 2, Landscaping and Lighting Act of 1972. The Engineer’s Report contains the plans and specifications for the maintenance of the improvements, an estimate of the costs of the maintenance and servicing, a diagram for the assessment district and an assessment of the estimated costs of the maintenance and servicing of the improvements.
Docusign Envelope ID: 7D1441FB-B02C-8B3F-8343-05B773704B47 RESOLUTION NO. 6724
2 SE
CTION 2. The City Council approves the Engineer's Report as filed and sets a public hearing for Tuesday, May 12, 202 6, at 7:30 p.m., in the Gardena City Council Chambers, 1700 West 162nd Street, in the City of Gardena, California, to consider the levy and collection of the assessment for the Gardena Artesia Boulevard Landscaping Assessment District for Fiscal Year 2026-2027.
SE
CTION 3. The City Clerk or designee is authorized and directed to give notice of the hearing in time, form, and manner as required by the California Streets and Highways Code, Division 15, Part 2, Landscaping and Lighting Act of 1972.
SE
CTION 4. That the City Council declares its intention to levy upon and collect assessments at the same rate as previously established through the Gardena Artesia Boulevard Landscaping Assessment District for Fiscal Year 2026-2027, except that no assessments shall be imposed upon property owned by the state or federal government or any local agency.
SE
CTION 5. That the boundaries of the Gardena Artesia Boulevard Landscaping Assessment District are as shown and described in the attached map and incorporated by reference.
SE
CTION 6. That the purposes of the District are those provided for in the Engineer's Report on file with the City Clerk.
SE
CTION 7. That this resolution shall be effective immediately.
BE IT FURTHER RESOLVED that the City Clerk shall certify to the passage and adoption of this Resolution; shall cause the same to be entered among the original Resolutions of said City; and shall make a minute of the passage and adoption thereof in the records of the proceedings of the City Council of said City in the minutes of the meeting at which the same is passed and adopted.
Passed, approved, and adopted this 14th day of April , 2026.
TASHA CERDA, Mayor
ATTE
ST:
MINA SEMENZA, City Clerk
APPROVED AS TO FORM:
CARMEN VASQUEZ, City Attorney
Docusign Envelope ID: 7D1441FB-B02C-8B3F-8343-05B773704B47
City of Gardena
Gardena City Council
Meeting
AGENDA REPORT
SUMMARY
Agenda Item No. 17C.
Section: DEPARTMENTAL
ITEMS - PUBLIC WORKS
Meeting Date: April 14,
2026
TO: THE HONORABLE MAYOR AND MEMBERS OF THE GARDENA CITY COUNCIL AGENDA TITLE: RESOLUTION NO. 6733, Adopting Storm Drain Master Plan COUNCIL ACTION REQUIRED:
Staff Recommendation: Adopt Resolution No. 6733.
RECOMMENDATION AND STAFF SUMMARY:
On July 23, 2024, City Council approved a professional services agreement with Carollo Engineering Inc. to prepare a Storm Drain Master Plan.
The City storm drain system consists of approximately 12 miles of City-owned pipes and 25 miles of County owned pipes, along with associated infrastructure including manholes, open channels, and catch basins. The system also includes approximately 5.5 miles of the Dominguez Chanel and 1.5 miles of open channel along 135th Street. City owned pipe diameters range from 6 to 81 inches, with flows discharging to the County storm drain system, the Dominguez Channel, and the Willows Wetlands at the southern end of the City.
The Storm Drain Master Plan provides a comprehensive analysis of the existing system's condition and capacity and includes recommendations for future Capital Improvement Projects/Program (CIP) to rehabilitate and enhance the system. The plan will assist the City in identifying the total deferred maintenance cost, prioritize repairs based on current conditions, and establishing a foundation for adopting development impact fees for new storm drain facilities.
After two years of work, Carollo Engineers, Inc. has competed and submitted the Final Storm Drain Master Plan to the City.
Staff respectfully recommends that City Council Adopt Resolution No. 6733.
FISCAL IMPACT/COST:
Amount of Expenses: N/A
APPROVED:
___________________________
Clint Osorio, City Manager
Attachments
Resolution No. 6733.pdf
1 RESOLUTION NO. 6733
A RESOLUTION OF THE CITY COUNCIL OF THE CITY
OF GARDENA, CALIFORNIA, A DOPTING THE ST ORM
DRAIN MASTER PLAN DATED MARCH 2026
WHEREAS, the City currently provides storm drainage services to approximately 1,340 acres (about 2.10 square miles)., and;
WHEREAS, the system consists of approximately 12 miles of City-owned pipes and 25 miles of County-owned pipes, along with manholes, open channels, and catch basins owned by both entities., and;
WHEREAS, the total number of County-owned catch basins is 574, while the City owns 290 catch basins., and;
WHEREAS, in addition, the system includes approximately 5.5 miles of the Dominguez Channel and 1.5 miles of open channel along 135th Street, and;
WHEREAS, City-owned pipe diameters range from 6 to 81 inches, with flows discharging to the County storm drain system, the Dominguez Channel, an open channel leading to the Dominguez Channel, and the Willows Wetlands at the southern end of the City
., and;
WHEREAS, the Gardena Willows Wetland Preserve, located in the City’s southeast corner, covers approximately 13.6 acres in total, including 9.4 acres of wetland and 4.2 acres of upland habitat., and;
WHEREAS, the Storm Drain Master Plan document will provide the City with an analysis of the existing storm drain system capacity and includes recommendations on future CIP projects to maintain and improve the storm drain system, which will help the City understand the total deferred maintenance cost, prioritize repairs based on current conditions and provide a basis for adopting development impact fees for new storm drain facilities., and;
WHEREAS, on July 23, 2024, City Council approved a professional services agreement with Carollo Engineering, Inc. to prepare a Storm Drain Master Plan (SDMP) for the City., and;
WHEREAS, after two years of work to prepare the plan, on March 2026, Carollo Engineering, Inc. completed and submitted the Final Storm Drain Master Plan., attached herewith as Exhibit 1., and;
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 RESOLUTION NO. 6733
2 NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF GARDENA , CALIFORNIA, DOES HEREBY FIND, DETERMINE, AND RESOLVE, AS FOLLOWS:
SECTION 1. The above recitals are true, correct and incorporated herein by this reference.
SECTION 2. Adopt the Storm Drain Master Plan document dated March 2026 and prepared by Carollo Engineering, Inc., a copy of which is attached as Exhibit 1.
SECTION 3. That this Resolution shall be effective April 14, 2026.
BE IT FURTHER RESOLVED that the City Clerk shall certify to the passage and adoption of this Resolution; shall cause the same to be entered among the original Resolutions of said City; and shall make a minute of the passage and adoption thereof in the records of the proceedings of the City Council of said City in the minutes of the meeting at which the same is passed and adopted.
Passed, approved, and adopted this 14th day of April, 2026.
TASHA CERDA, Mayor
ATTEST:
MINA SEMENZA, City Clerk
APPROVED AS TO FORM:
CARMEN VASQUEZ, City Attorney
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
Storm Drain Master Plan
March 2026 / FINAL
EXHIBIT 1
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
Storm Drain Master Plan
March 2026 / FINAL
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA i
pw://Carollo/CA/Gardena/203411-000000/03 Reports and Studies/02 Deliverables/SDMP Master Plan/_Cover_TOC_Abbrevs_AppxCovers Contents
CHAPTER 1 BACKGROUND
1.1 Introduction 1-1
1.2 Storm Drainage System Overview 1-1
1.3 Scope and Authorization 1-3
1.4 Report Organization 1-3
1.5 Acknowledgments 1-4
1.6 Reference Material 1-4
CHAPT
ER 2 STUDY AREA DESCRIPTION
2.1 Study Area 2-1
2.2 Planning Period 2-1
2.3 Climate and Topography 2-1
2.4 Land Use 2-5
CHAPT
ER 3 PLANNING AND EVALUATION CRITERIA
3.1 Hydrologic Criteria 3-1
3.1.1 Precipitation Characteristics 3-1
3.1.2 Design Storms 3-1
3.1.3 Ground Slope 3-2
3.2 Hydraulic Criteria 3-3
3.2.1 Hydraulic Analysis 3-3
3.3 Planning and Design Criteria Summary 3-3
CHAPT
ER 4 STORM DRAINAGE SYSTEM FACILITIES AND HYDRAULIC
MODEL
4.1 System Overview 4-1
4.2 Existing Discharge Locations 4-1
4.3 Modeling Software 4-3
4.4 Hydrologic Model 4-4
4.4.1 Design Hydrographs 4-4
4.4.2 SWMM Hydrologic Unit (Sub-catchment) 4-4
4.4.3 Soil Characteristics 4-4
4.5 Hydraulic Model 4-9
4.5.1 Elements of the Storm Drainage Hydraulic Model 4-9
4.5.2 Hydraulic Model Update Process 4-9
4.6 Model Verification 4-10
4.6.1 Historical Rainfall Event Analysis 4-10
4.7 Flow Direction Map 4-11
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA ii
CHAPTER 5 CAPACITY EVALUATION AND PROPOSED IMPROVEMENTS
5.1 Capacity Evaluation 5-1
5.2 Storm Drainage System Capacity Improvements 5-4
5.2.1 Capital Project Prioritization 5-4
5.2.2 10-Year Design Storm Improvements 5-4
5.2.3 50-Year Design Storm Improvements 5-7
CHAPT
ER 6 CONDITION ASSESSMENT AND
REHABILITATION/REPLACEMENT PROGRAM
6.1 Storm Drainage System Condition Assessment 6-1
6.1.1 Closed-Circuit Television Inspection Findings 6-1
6.2 Condition Based Recommendations 6-6
6.2.1 Ongoing/Recommended Condition Assessment Strategy 6-7 CHAPT
ER 7 CAPITAL IMPROVEMENT PROGRAM
7.1 Project Prioritization 7-1
7.2 Capital Improvement Project Costs 7-1
7.3 Cost Estimating Accuracy 7-1
7.4 Construction Unit Costs 7-2
7.4.1 Pipeline Unit Costs 7-2
7.5 Project Costs and Contingencies 7-2
7.5.1 Baseline Construction Cost 7-3
7.5.2 Estimated Construction Cost 7-3
7.5.3 Capital Improvement Cost 7-3
7.6 Capital Improvement Implementation 7-4
Appendices
APPENDIX A SOIL RESOURCE REPORT
APPENDIX B STREET FLOW DIRECTION MAPS
APPE
NDIX C EXHIBIT MAPS
Tables
Table 2.1 Study Area Climate 2-1
Table 2.2 Land Use Summary 2-5
Table 3.1 Planning and Design Criteria Summary 3-4
Table 4.1 City-Owned Drains by Diameter 4-3
Table 4.2 Percent Impervious/Pervious Area by Land Use 4-6 Table 4.3 Infiltration Rates for NRCS Hydrologic Soil Groups 4-7 Table 5.1 10- Year, 24-Hour Design Storm Improvements 5-6 Table 5.2 50- Year, 24-Hour Design Storm Improvements 5-7 Table 6.1 NASSCO PACP Structural and O&M Grade Descriptions 6-2 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA iii
Table 6.2 6-2
Table 6.3 6-6
Table 7.1 7-2
Table 7.2 7-5
Figures
Figure 1.1 1-2
Figure 2.1 2-3
Figure 2.2 2-4
Figure 2.3 2-6
Figure 3.1 3-2
Figure 4.1 4-2
Figure 4.2 4-8
Figure 4.3 4-11
Figure 5.1 5-2
Figure 5.2 5-3
Figure 5.3 5-5
Figure 6.1 6-4
Figure 6.2
Summary of CCTV Condition Ratings for Main Trunk Sewer (PACP Scoring) System Condition Projects Summary
Pipeline Construction Unit Costs
Recommended Capacity Improvements
Regional Location Map
Master Plan Study Area
Topography
Land Use
Type 1 10-year and 50-year, 24-hour Design Storms
Existing Storm Drainage System
Hydrological Soil Group
Classification of the Historical Rainfall Events
10-Year, 24-Hour Design Storm Deficiency
50-Year, 24-Hour Design Storm Deficiency
Proposed Capacity Improvements
Maximum Structural Grades from CCTV Inspection
Maximum O&M Grades from CCTV Inspection
6-5
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA iv
Abbreviations
Carollo Carollo Engineers
CCTV closed-circuit television
CIP Capital Improvement Program
City City of Gardena
CMP corrugated metal pipe
County Los Angeles County
DCIA directly connected impervious area
DDF depth duration frequency
DEM Digital Elevation Model
ENR Engineering News-Record
°F degrees Fahrenheit
General Plan 2023 General Plan
GIS geographic information system
HGL hydraulic grade line
lf linear foot
Master Plan Storm Drain Master Plan
NASSCO National Association of Sewer Service Company
NOAA National Oceanic and Atmospheric Administration
NPS National Plant Services, Inc.
NRCS Natural Resources Conservation Service
O&M operations and maintenance
PACP Pipeline Assessment and Certification Program
R&R rehabilitation/replacement
RCP reinforced concrete pipe
SCS Soil Conservation Service
SWMM Storm Water Management Model
USDA United States Department of Agriculture
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 1-1
CHAPTER 1 BACKGROUND
This chapter provides a brief overview of the City of Gardena's (City) need for its first Storm Drain Master Plan, outlines the objectives of the Plan, and introduces the seven chapters that describe the storm drain system.
1.1 Introduction
The City is a diverse community located in the South Bay region of Los Angeles County (County), California. The City encompasses approximately 3,749 acres (with over 99 percent of that comprising land and 1 percent waterways) and has a population of around 61,000 as of the 2020 census—though more recent estimates (2025) indicate a slight decline to roughly 56,700. The City is bordered by the City of Los Angeles neighborhood of Harbor Gateway on the east and south, the City of Torrance on the southwest, the unincorporated community of Alondra Park on the west, the City of Hawthorne on the northwest, and the unincorporated community of Athens to the north. Figure 1.1 presents a regional location map of the City.
1.2 Storm Drainage System Overview
The storm drainage system includes City- and County-owned infrastructure, such as drainage pipes, manholes, and catch basins. Maintenance responsibility depends on ownership: the City maintains its facilities, while the County maintains its own.
The City currently provides storm drainage services to approximately 1,340 acres (about 2.10 square miles). The City drainage area is defined as the cumulative area of modeled sub-catchments that discharge to City-owned stormwater infrastructure. This area represents the portion of the watershed contributing runoff to the City’s existing stormwater conveyance system during storm events and used for the hydraulic capacity analysis.
The system consists of approximately 12 miles of City-owned pipes and 25 miles of County-owned pipes, along with manholes, open channels, and catch basins owned by both entities. The total number of County-owned catch basins is 574, while the City owns 290 catch basins. In addition, the system includes approximately 5.5 miles of the Dominguez Channel and 1.5 miles of open channel along 135th Street.
City-owned pipe diameters range from 6 to 81 inches, with flows discharging to the County storm drain system, the Dominguez Channel, an open channel leading to the Dominguez Channel, and the Willows Wetlands at the southern end of the City. The Gardena Willows Wetland Preserve, located in the City’s southeast corner, covers approximately 13.6 acres in total, including 9.4 acres of wetland and 4.2 acres of upland habitat.
The scope of this study includes only City-owned infrastructure that is operated and maintained by the City. Unless specified otherwise, the current model and report will refer exclusively to City infrastructure throughout the remainder of this document.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 S Vermont Ave
W 190th St
W Artesia Blvd
S Western Ave
W 166th St
W Redondo Beach Blvd
W el Segundo Blvd
Kornblum Ave
Marine Ave
S Hoover St
W 182nd St
W 120th St
SBudlongAve
Century FwyGlenn Anderson Frwy & Transit Way
W 135th St
W Rosecrans Ave
San Diego Fwy
Van Ness Ave
Crenshaw Blvd
SNormandieAve
SBroadway
S Figueroa StHarbor Frwy & Transit Way
Harbor Fwy
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 3,0001,500
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 1.1 Regional Location Map
CITY OF GARDENA
Legend
Gardena City Boundary
Gardena
EL CAMINO
VILLAGE
CARSON
COMPTON
DEL AIRE
EL SEGUNDO
FLORENCE
HAWTHORNE
HERMOSA BEACH
INGLEWOOD
LAWNDALE
LENNOX
LOS ANGELES
RANCHO
DOMINGUEZREDONDO
BEACH
SOUTH GATE
TORRANCE
WEST ATHENS
WEST
CARSON
WILLOWBROOK
WISEBURN
Gardena
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 1-3
1.3 Scope and Authorization
The purpose of this Master Plan is to identify, analyze, and prioritize the capital improvement needs of the City's stormwater management system to reduce flood risks, enhance public safety, and protect the City's assets. On July 23, 2024, the City approved a professional services agreement with Carollo Engineers (Carollo) to prepare this Master Plan for the storm drainage system, which included the following main tasks:
Task 1: Project Management and Quality Control.
Task 2: System Inventory and Geographic Information System (GIS) Database Development. Task 3: Condition Assessment.
Task 4: Hydrologic/Hydraulic Model Development and Evaluations:
» Task 4.1 Watershed Development.
» Task 4.2 Hydrologic/Hydraulic Model Development.
» Task 4.3 Hydraulic Model Validation.
» Task 4.4 Planning and Evaluation Criteria.
» Task 4.5 System Evaluation of City Infrastructure.
Task 5: Capital Improvement Projects:
» Task 5.1 Develop Recommended Improvements (City Infrastructure). » Task 5.2 Rehabilitation and Replacement Program.
Task 6: Master Plan preparation.
1.4 Report Organization
The storm drainage system master plan report contains seven chapters, followed by appendices that provide supporting documentation for the information presented in the report. The chapters are briefly described below:
Chapter 1 - Background. This chapter presents a summary of the storm drainage system service area, the purpose, and scope for this Master Plan, and the objectives of the study. Referenced documents are also listed.
Chapter 2 - Study Area Description. This chapter presents a description of the study area, defines the land use classifications, and summarizes the historical population trends. Chapter 3 - Planning and Evaluation Criteria. This chapter presents the planning criteria for evaluating the storm drainage system. The planning criteria address the storm drainage system capacity, gravity storm pipe slopes, maximum flood depths, and storm runoff coefficients. Chapter 4 - Storm Drainage System Facilities and Hydraulic Model. This chapter describes the City's existing system, and the hydraulic model was used for identifying existing system deficiencies and recommending improvements.
Chapter 5 - Capacity Evaluation and Proposed Improvements. This chapter presents the results of the capacity evaluation of the storm drainage system and the proposed projects that correct capacity deficiencies and serve future users.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 1-4
Chapter 6 - Condition Assessment and Rehabilitation/Replacement Program. This chapter presents recommendations for the City to develop a storm drainage system maintenance, inspection, and rehabilitation/replacement program.
Chapter 7 - Capital Improvement Program. This chapter presents the capital improvement program and projects, a summary of the capital costs, and is organized to assist the City in making financial decisions.
1.5 Acknowledgments
Carollo wishes to acknowledge and thank Kevin Kwak (Assistant Public Works Director), Jun DeCastro (Project Manager for City), Kevin Thomas (Public Works Superintendent), Dave Kirkwood (Public Works Lead), and John M Schener (Public Works Lead). Their cooperation and courtesy in obtaining a variety of necessary information were valuable components in completing and producing this report.
1.6 Reference Material
The following documents were referenced in the preparation of this master plan:
City of Gardena Sewer Master Plan.
City of Gardena Storm Drainage System Drawing.
National Plant Services, Inc. (NPS) Report.
Los Angeles County Storm Drain System: Web-Based Map Viewer. City of Gardena General Plan 2023.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 2-1
CHAPTER 2 STUDY AREA DESCRIPTION
This chapter outlines the planning area for the City's storm drain system, defines land use classifications, and describes future growth assumptions within the City's service area.
2.1 Study Area
The 2023 General Plan (General Plan) planning boundary is the study area boundary for this Storm Drain Master Plan (Master Plan). The study area is shown in Figure 2.1.
The study area encompasses the portion of the City where stormwater runoff has the potential to enter the existing storm drain system. This area covers approximately 3,749 acres (about 5.6 square miles), representing the City's storm drainage service area. The analysis includes all City-owned storm drainage infrastructure, including drainage pipes, manholes, catch basins, 5.5 miles of the Dominiguez Channel, and
1.5 miles of open channel along 135th Street. Only facilities operated and maintained by the City are included in the study; County-owned infrastructure is excluded unless specifically noted. The study area accounts for runoff from all impervious and pervious surfaces within the City limits that contribute to the City's storm drainage system.
2.2 Planning Period
This Master Plan is intended to serve as a guiding document for planning and implementing storm drain system improvements and addressing existing capacity constraints.
2.3 Climate and Topography
Table 2.1 summarizes the study area's climate. In City, the summers are warm, arid, and clear, and the winters are long, cool, wet, and partly cloudy. The City experiences a Mediterranean climate with mild, wet winters and warm, dry summers. The wet season typically extends from November through March, with most of the City's rainfall occurring between December and February. The City receives relatively low rainfall, averaging around 13.55 inches annually. While the City experiences fog in the cooler months, it is generally light and does not result in significant drizzle.
Table 2.1 Study Area Climate
Month Average Temperature (°F)(1) Average Total Precipitation(1) (inches) Minimum Maximum
January 44.3 65.9 3.04
February 45.8 66.5 3.23
March 47.4 67.4 2.03
April 49.9 69.6 0.84
May 53.5 71.6 0.18
June 56.7 73.8 0.06
July 60.2 77.6 0.02
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 2-2
Month Average Temperature (°F)(1) Average Total Precipitation(1) (inches) Minimum Maximum
August 61.1 78.6 0.06
September 59.5 78 0.22
October 55.4 75.4 0.42
November 48.9 71.5 1.31
December 45 66.9 2.15
Average or Total 52.3 71.9 13.55
Notes:
°F - degrees Fahrenheit
(1) Data were obtained from the Torrance station, the closest available monitoring location to the study area.
Source: Western Regional Climate Center. Torrance, California (048973). https://wrcc.dri.edu/cgi-bin/cliMAIN.pl?ca8973.
Accessed May 8, 2025.
The topography of the City is relatively flat and urbanized, with elevations generally ranging from sea level to about 200 feet. Figure 2.2 shows the topography within the study area. Located in the Los Angeles Basin, Gardena is bordered by low hills to the east and west, but the landscape is predominantly developed with limited open, undeveloped land. The City's urban structure follows a more traditional grid layout, shaped by its proximity to larger urban centers like Los Angeles, Torrance, and Hawthorne, rather than being defined by a central core or prominent natural features.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 SVermontAve
S Western Ave
W Artesia Blvd
Marine Ave
W el Segundo Blvd
W 166th St
W 139th St
W Redondo Beach Blvd
S Budlong Ave
W 182nd St
W Rosecrans Ave
W 135th St
Van Ness Ave
Harbor Frwy & Transit Way
Harbor Fwy
Crenshaw Blvd
S Normandie Ave
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 2,0001,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 2.1 Master Plan Study Area
CITY OF GARDENA
Legend
Gardena City Boundary
Study Area
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 S Vermont Ave
S Western Ave
W Artesia Blvd
Denker Ave Berendo Ave
Halldale Ave
S Ainsworth St
W 154th St
W 127th St
171st St
W 126th St
W 132nd St
Gramercy Pl
W 162nd St
Marine Ave
W el Segundo Blvd
W 144th St
W Redondo Beach Blvd
W 166th St
W 139th St
W 182nd St
S Budlong Ave
W Rosecrans Ave
W 135th St
Van Ness Ave
Crenshaw Blvd
S Normandie Ave
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 0.20.1
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 2.2 Topography
CITY OF GARDENA
Legend
Gardena City Boundary
Service Area
Elevations
5'
180'
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 2-5
2.4 Land Use
Land use information is an integral component in determining the amount of stormwater runoff generated within a given service area. The type of Land Use in an area will affect the volume and peak flow of the stormwater runoff. Adequately estimating the quantity of stormwater runoff from various land use types is important in sizing and maintaining storm drainage facilities. An important tool for determining land use projections is the City's General Plan. The City adopted its latest General Plan in February 2023.
Land use assumptions used in this study are consistent with the City's General Plan, as shown in Figure 2.3. Table 2.2 summarizes the land use types within the City limits. Gardena is a highly urbanized city that is approximately 99 percent developed. As of February 2023, only 7.42 acres remain vacant, including roughly 13 acres known as the Gardena Sumps, which cannot be developed. As a result, future development will either occur through limited infill development, through recycling of existing developed land, or through utilization of the overlay zones.
Table 2.2 Land Use Summary(1)
Land Use Description Acres Percentage
Residential - Single 1,245 33.2%
Residential - Double, Duplex, Or Two Units 94 2.5%
Residential - Three Units (Any Combination) 51 1.4%
Residential - Four Units (Any Combination) 77 2.0%
Residential - Five or More Apartments or Units 159 4.2% Residential - Manufactured Home Park 52 1.4%
Commercial 379 10.1%
Industrial 557 14.9%
Recreational 19 0.5%
Institutional 79 2.1%
Public 215 5.7%
Vacant 7 0.2%
Right-of-Way 814 21.8%
Total 3,749 100%
Notes:
(1) The land use description was sourced from the City's General Plan.
The predominant land use continues to be single-family residential, accounting for 33.2 percent of the City's total area. Other residential types, including duplexes, multi-family units, and mobile home parks, represent approximately 12 percent of the City. Commercial uses, primarily located along Artesia Boulevard, Redondo Beach Boulevard, Crenshaw Avenue, and Western Avenue, cover 10.1 percent of the City. Industrial uses account for 14.87 percent and are largely situated north of Rosecrans Avenue between Van Ness Avenue and Normandie Avenue. Streets and rights-of-way occupy 21.8 percent of city land, while recreational, institutional, and public uses together account for approximately 8.3 percent.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 SVermontAve
S Western Ave
W Artesia Blvd
W 144th St
Marine Ave
W el Segundo Blvd
W 166th St
W Redondo Beach Blvd
W 139th St
S Budlong Ave
W 182nd St
W Rosecrans Ave
W 135th St
Van Ness Ave
Harbor Frwy & Transit Way
Harbor Fwy
I- 110
Crenshaw Blvd
S Normandie Ave
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 2,0001,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 2.3 Land Use
CITY OF GARDENA
Legend
Gardena City Boundary
Land Use
Low Density Residential
Medium Density
Residential
High Density Residential
Neighborhood
Commercial
General Commercial
Industrial
Mixed Use
Public/Institutional
Special Plan
County Parcels
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 3-1
CHAPTER 3 PLANNING AND EVALUATION CRITERIA
The capacity of the City's storm drainage collection system was evaluated based on the planning criteria defined in this chapter. The criteria were established to assess the performance of the storm drainage system, as simulated by the computer hydraulic model, and for sizing future facilities. The criteria consisted of specific guidelines recommended by the City, County, State regulatory agencies, and other planning criteria developed by Carollo based on engineering judgment and past experience.
Precipitation characteristics, design storm duration and frequency, and impervious versus pervious surfaces were reviewed to perform the hydrologic analysis on the system. Capacity deficiencies were identified through a comparison of the City's storm drainage system performance and the established planning criteria. Such a comparison defines the type, location, and extent of the facility deficiencies that should be corrected to maintain a storm drainage system with enough capacity to satisfy the selected storm conditions.
3.1 Hydrologic Criteria
This section describes the hydrologic characteristics of the City and the design storms that were used to estimate existing and future storm flows.
3.1.1 Precipitation Characteristics
The City's inland location results in a semi-arid climate, with a dry season extending from May through September. However, most of the City's rainfall typically occurs between November and April. The City experiences mild to moderate rainfall during the wet season, with occasional light drizzle. The average annual precipitation is approximately 13.55 inches.
3.1.2 Design Storms
The capacity of storm drainage facilities depends on the selected level of protection provided by those facilities. The level of protection is often expressed in terms of the frequency, or return period, of the storms for which the facilities are designed to prevent damage or for which the facilities will safely pass the stormwater flows. This storm is referred to as the design storm and is an idealized representation of a typical storm with a specified return period. Selection of the design storm can have a significant impact on the size and cost of required drainage facilities.
Two design storms were used for the evaluation of the City's existing storm drainage system and for the design of future storm drainage facilities. The 10-year, 24-hour event was used for evaluating storm conveyance facilities, while the 50-year, 24-hour event was used for evaluating the combined capacity of basins, streets, and pipes.
The City's design storms were developed using US Department of Agriculture and Natural Resources Conservation Service (NRCS) Type I distribution with the 24-hour volumes defined by National Oceanic and Atmospheric Administration (NOAA) Atlas 14. Figure 3.1 illustrates the 24-hour design storms for the 10-year and 50-year recurrence intervals. The 10-year event has a total volume of 3.8 inches, whereas the 50-year event has a total volume of 5.4 inches.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 3-2
The 10-year, 24-hour design storm was used for sizing conveyance facilities for drainable areas. The 50-year, 24-hour design storm was used to determine if street flooding exceeds one foot in depth and could flood buildings or create serious safety hazards.
Figure 3.1 illustrates the 24-hour precipitation profiles for the 10-year and 50-year design storms.
Figure 3.1 Type 1 10-year and 50-year, 24-hour Design Storms
3.1.3 Ground Slope
Ground slopes were determined using the City's elevation data and ArcView GIS. An average overland flow path slope is required for each hydraulic model subbasin. This value was automatically determined through the intersection of subbasin areas with the Digital Elevation Model (DEM) derived from the City elevation data points and survey data. The elevation grid was intersected with the subbasins, and the slope of each grid cell within the subbasin was calculated. Using the number of cells within each subbasin, the average basin slope was calculated. To verify this procedure, subbasin slopes for selected subbasins were manually estimated using available ground contour elevations and following guidelines provided by the hydraulic model manufacturer (described in Chapter 4).
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 3-3
3.2 Hydraulic Criteria
The City's storm drainage facilities were evaluated based on the planning and evaluation criteria defined in this section. The criteria were established to assess the performance of the storm drainage system, as simulated by the computer hydraulic model, and for sizing future facilities.
3.2.1 Hydraulic Analysis
3.2.1.1 Pipe Flow
Manning's equation for pipe flow was used to determine travel time for flow through pipes.
3.2.1.2 Manning Coefficient (n)
The Manning coefficient 'n' is a friction coefficient and varies for pipe material, smoothness of pipe and joints, and buildup of debris or other obstructions like root intrusion. For storm drainpipes, the Manning coefficient typically ranges between 0.012 and 0.015, depending on material type. The Manning's n value for all storm drains was assumed to be 0.013 for the hydraulic analysis. This is a conservative estimate for Manning's n value, but it is reasonable considering the age of some pipes in the drainage system.
3.2.1.3 Channel Flow
Manning's equation for open channel flow was used to derive travel time, velocity, flow, and width relationships for channels. The modeling software calculates ditch or channel travel time using entered values of slope, width, bank side slope, and Manning's n. The modeling software required input of a typical contributing area to determine depth of flow.
3.2.1.4 Surcharge Depth and Street Flooding
Storm drains are designed to surcharge under normal operation. It is common engineering practice to allow street curbs and gutters to act as storage and conveyance of stormwater, similar to overland flow, for a given rainfall intensity and duration to protect adjacent properties from flooding. When evaluating the adequacy of the existing conveyance facilities serving existing developments, City streets were allowed to flood and provide flow attenuation and storage capacity, thus avoiding cost-prohibitive improvements.
Floodwater was permitted to accumulate in streets up to 1 foot above the ground for the 50-year design storm. Floodwater was generally not allowed to accumulate in the streets during the 10-year design storm.
3.3 Planning and Design Criteria Summary
The City's storm drainage system was evaluated based on the analysis and design criteria described in this chapter. These criteria are summarized in Table 3.1.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 3-4
Table 3.1 Planning and Design Criteria Summary
Design Storms
Design Storm Facilities to be Evaluated Maximum HGL Depth/Flooding Depth Criteria 10-year, 24-hour Storm Sewer Conveyance Facilities No flooding allowed 50-year, 24-hour Combined Capacity of Streets, Basins, and Pipes Allowable 1 foot of flooding aboveground Precipitation Depth - Duration - Frequency
Duration 10-Year 50-Year
(inches) (inches/hour) (inches) (inches/hour)
24-hour 3.8 1.0 5.4 1.4
Design Hydrographs
The Design Hydrographs were determined using the NOAA Atlas 14 10-year and 50-year 24-hour storms with 5-minute time steps.
Manning's Friction Coefficient (n):
RCP = 0.013
CMP = 0.024
Concrete Channel = 0.013
Hydrology Analysis Design Criteria
Storm Pattern = SCS Type 1
Hydrograph Method = SCS Unit Hydrograph
Storm Duration = 24 hours
Rainfall Precipitation (inches) = See Figure 3.1 (based on NOAA Atlas 14) Hydrologic Soil Group Definition = C (based on NRCS Soil Survey) Notes:
CMP - corrugated metal pipe; HGL - hydraulic grade line; RCP - reinforced concrete pipe; SCS - Soil Conservation Service
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-1
CHAPTER 4 STORM DRAINAGE SYSTEM FACILITIES AND
HYDRAULIC MODEL
This chapter presents an overview of the City's storm drainage facilities. The chapter also describes the development of the City's storm drainage hydrologic and hydraulic models. These models were used for identifying existing system deficiencies and for recommending capital improvements.
4.1 System Overview
The City's storm drainage system is composed of infrastructure owned and maintained by both the City and County. This infrastructure primarily consists of catch basins and storm drainpipes. The system consists of approximately 12 miles of City-owned pipes and 25 miles of County-owned pipes. The total number of County-owned catch basins is 574, while the City owns 290 catch basins.
Drainage areas within the City were delineated based on infrastructure ownership and maintenance responsibility. Sub-catchments were delineated based on topography, flow direction, and slope to define drainage areas. Jurisdictional boundaries were then applied to distinguish between City- and County-owned stormwater facilities, such as catch basins and storm drainpipes.
Carollo confirmed asset ownership using the County's GIS storm drain network and coordination with the City through monthly meetings and technical workshops. The City also provided a citywide storm drain map that included as-built drawing numbers associated with individual pipes, which aided in identifying facilities under City jurisdiction.
Only storm drain facilities owned and maintained by the City were included in the hydraulic model.
County-owned facilities were excluded from the modeling effort.
Figure 4.1 illustrates the modeled storm drainage system, including storm drain diameters, outfall locations, and open channels. Table 4.1 summarizes City-owned storm drains by diameter. Overall, the County owns and maintains approximately 25 miles of major storm drain infrastructure within the City, while the City owns and operates an additional 12 miles of local drainage network.
4.2 Existing Discharge Locations
The storm drainage network consists of large trunk lines owned and maintained by the County, with local drainage systems owned and operated by the City. City-owned drains typically discharge into County trunk lines, the Dominguez Channel, or into Willows Wetland located in the southern portion of the City.
The Willows Wetland functions as a detention and treatment basin that receives runoff from portions of the City's storm drain network.
The Dominguez Channel is a large stormwater channel operated and maintained by the County. It originates in Hawthorne and flows through several cities, including Gardena, City of Carson, and City of Compton, before discharging into Los Angeles Harbor.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # #
#####
#
#
# # # # # # # # #
# # # # # # # # # # #
# # # # # # # # # # # # # ## # # # ## #
#
#
##
#
#
#
# # # # #
# # # # #
# # # # # # # # # # # ## # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ## # # # # # # # # # # # # # # # # # ## # # # # # # # # # # # # # # # # #
# # # # ## # # # # # # # # #
## # # # #
######
#
# ##
##
# ## ## # # # #
#############
######
#####
# # # # # # # # # #
# # # #
#
#
##############
#
#
#
#
#
# #
#
# # #######
#
# #
###
# ##
###
# # # # #
#
#
#
##########
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
##
########
#
#
#
#
#
# # # # #
#######
##########
###
#
#
##
#
#
#
#
#
#
#
#
#
# # # # # # # ## # # # #
####
# # # # # #
#####
####
# # # # ## # # #
##
##
# # # # # # #
####
# # # # # # # ## # # # # # # #
# # # # # #
## ##
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # # # # # # # # # # # ## # # # # # # # # # # # # # # # # # # ## #
##
# ###
#
##
#
# #
#
#
#
# #
#
#
#
###
###
#
#
#
#
#
#
#
#
#
#
##
##
###
#
## ###
# ##
#
##
##
###
#
#
#
#
#
#
#
##
#
##
#
#
###
###
# ## #
#
#
#
#
#
# #
#
##
###
#
#
#
#
#
#
## #
#
## ###
#
## ## # #####
##
#
##
# # #
#
##
###
# ##
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
# #
#
#
##
#
## # #
## #
##
# ##
#
#
#
#
##
#
#
#
#
# ##
#
#
#
#
#
# #
# ########## ## # # ##### ### ### ##
#
#
##
##
#
##
#
## ###
#### ##
###### ## ## #
#
##
#
#
##
#
##
#
# ## # ####
#
########## ## #########
## ##
###
# ######## ## #
#
##
## ##
### ###
# # ##
#
# ## # #### #
#
# ##
### #
#
#
##
#
#
###
##
# #
###
# #
# #
### #
##
### #
#
##
###
#
#
# #
# # # # ##
# # # #
#
#
#
##
###
##########
###### # # #
# #
#*#* #*#*#* #*#*
#*#*#* #*#*
#*
#*#*
#*#* #*#*
#* #*
#*#*#*
#*#*
!P
!P !P
!P
!P!P
!P
!P
!P
!P !P
!P
!P
!P
!P
Dominguez Channel
Dominguez Channel
S Vermont Ave
S Western Ave
W Artesia Blvd
Denker Ave
Berendo Ave
Halldale Ave
S Ainsworth St
W 154th St
W 127th St
171st St
W 126th St
W 132nd St
Gramercy Pl
W 162nd St
Marine Ave
W el Segundo Blvd
W 144th St
W Redondo Beach Blvd
W 166th St
W 139th St
W 182nd St
S Budlong Ave
W Rosecrans Ave
W 135th St
Van Ness Ave
Crenshaw Blvd
S Normandie Ave
36''
15''
33''
24''
18''
60''
30''
18''
18''
24''
51''
36''
39''
24''
36'' 33''
48''
40''
24''
15''
48''
42''
21''
48''
48''
81''
18''
36''
21''
54''
18'' 18''
36''
15''
24''
36'' 30''
30'' 36''
42''
36''
30''
8''
30''
42''
42''
21''
36''
18''
36''
43''
66''
36''
60''
60''
30''
48''
24''
30''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 1,000500
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 4.1 Existing Storm Drainage System
CITY OF GARDENA
Legend
Study Area
Gardena City Boundary
County Parcels
Waterways
City Owned Catch Basin
County Owned Catch
Basin
City Owned Manhole
#* City Owned Intersection
By-Pass
!P Outfall
# City Owned Storm Drains
# County Owned Storm
Drains
Inset A
91 91
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-3
Table 4.1 City-Owned Drains by Diameter
Diameter/Height (inches) Length (feet) Percentage of System Circular Pipes
6-10 383 1%
12-15 9,504 17%
18 10,486 19%
21-24 8,144 15%
27-30 4,761 9%
32-36 10,470 19%
39-42 5,054 9%
45-54 3,489 6%
60 and greater 3,450 6%
Subtotal 55,741 100%
Rectangular Channel (width x height)
22 x 13 66 2%
60 x 48 - 63 x 48 1,228 40%
72 x 32 - 72 x 43 1,135 37%
78 x 48 62 2%
96 x 48 564 18%
Subtotal 3,055 100%
Total 58,796
4.3 Modeling Software
The storm drainage system was evaluated using InfoWorks ICM (an integrated catchment modeling software). InfoWorks ICM is a hydrologic and hydraulic modeling platform developed by Innovyze, designed for simulating urban stormwater systems. The software enables fully integrated hydrologic and hydraulic analysis by modeling surface runoff, sub-catchment behavior, and flow routing within a single environment.
InfoWorks ICM supports both event-based and continuous simulations, allowing for analysis of stormwater system performance under a range of rainfall conditions. Hydrologic inputs account for rainfall intensity, surface imperviousness, land use, and soil characteristics. Hydraulic routing is performed using the fully dynamic wave method, which solves the Saint-Venant equations to simulate flow through a network of storm drainpipes, manholes, open channels, and storage elements.
This modeling approach provides a detailed assessment of stormwater system behavior and helps identify potential capacity limitations, surcharge conditions, and surface flooding risks under various storm scenarios.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-4
4.4 Hydrologic Model
Hydrologic analysis of the study area was conducted using the hydrologic runoff module within InfoWorks ICM. This module simulates the generation of surface runoff in response to precipitation by representing the watershed as a network of interconnected hydrologic and hydraulic elements.
In InfoWorks ICM, the hydrologic model components represent distinct physical processes occurring within each sub-catchment, including rainfall interception, infiltration, surface runoff generation, and flow routing. Each sub-catchment is characterized by parameters such as area, slope, land use, soil properties, and the extent of directly connected impervious area (DCIA), which significantly influences runoff generation by representing impervious surfaces that convey runoff directly to the drainage system without any intervening pervious area. DCIA calculations are discussed in detail in Section 4.4.3.2.
Runoff generation is calculated using the Storm Water Management Model (SWMM) runoff method integrated within InfoWorks ICM, which incorporates nonlinear reservoir routing and infiltration losses modeled through options such as Horton, Green-Ampt method. These hydrologic processes are calibrated based on local site conditions to best represent actual runoff behavior.
The output from the hydrologic model consists of flow hydrographs at sub-catchment outlets, which serve as inputs to the hydraulic network model. These hydrographs are routed through the storm drainage system nodes and conduits using hydraulic solvers to assess system performance under various rainfall scenarios.
4.4.1 Design Hydrographs
The 10-year and 50-year, 24-hour storms were used in the analysis. The hyetographs, which are graphical representations of the distribution of rainfall over time, were balanced so that 5, 10, 15, etc., minute intensities are nested symmetrically within the 24-hour storm. They were constructed (by the NOAA 14 Atlas) from depth duration frequency (DDF) data provided in Chapter 3.
4.4.2 SWMM Hydrologic Unit (Sub-catchment)
Sub-catchments are hydrologic units of land whose topography and drainage system elements direct surface runoff to a single discharge point. The study area was delineated into approximately 841 individual sub-catchments, each assigned to an appropriate downstream outlet point. Of these, 276 sub-catchments discharge to City infrastructure, while the remaining sub-catchments extend into adjacent areas of the County. Sub-catchment boundaries and areas were determined based on surface flow patterns, catch basin ownership, right-of-way limits, development patterns, and available topographic data. Field observations were also conducted to verify drainage paths and ensure accurate representation of flow directions and contributing areas.
4.4.3 Soil Characteristics
For stormwater modeling, key factors relating land use to runoff are percent impervious and percent pervious area of the modeled area. The following sections describe the planning criteria and methods used to characterize the soil and runoff characteristics for the City.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-5
4.4.3.1 Impervious Area
Multispectral imagery allows for common band combinations, such as near infrared (bands 4, 3, and 2).
Near infrared allows the user to identify vegetation, water bodies, and man-made features. Vegetation appears as shades of red, water as shades of blue or black, and urban areas as shades of blue/gray.
An image processing model was developed whereby impervious and pervious surfaces were classified from the satellite imagery bands and then extracted based on user-defined variables. The classification method included 30 samples throughout the study area encompassing all land uses including multiple areas of vegetation, urban areas, and water. After the initial imagery reclassification, the results were extracted and the surfaces were reclassified as either pervious or impervious cover.
The analysis of the satellite imagery was used to determine the relative percent perviousness and imperviousness of the sub-catchments. These values were then used to calculate the DCIA. The DCIA values were then used in the hydraulic model. The methodology for calculating the DCIA for each sub-catchment is described in the following section.
4.4.3.2 Directly Connected Impervious Area
The basin proportion of directly connected or effective impervious area is related to land use, stormwater drainage system configuration, and recurrence intervals. If runoff from an impervious area flows directly into a concentrated flow path, i.e., into a gutter, it is considered directly connected. If it flows over a pervious area before becoming a concentrated flow, it is unconnected. Rainfall on impervious surfaces is not subject to losses by infiltration into the soil; the only losses in impervious areas are due to depression storage. All initial losses for impervious areas, typically 0.02 to 0.08 inches, were assumed to be satisfied by precipitation preceding the design storm.
The imperviousness derived from the satellite imagery represents the total average impervious area in a subbasin. To convert average percent imperviousness to DCIA, two equations were used. The following equation (developed by the U.S. Geological Survey [USGS]) was used for total impervious areas between 10 percent and 50 percent:
1. %DCIA = 3.6 + 0.4*I
Where: I = percent total impervious area (between 10 percent and 50 percent) For all remaining sub-catchments, the following equation was used:1
2. %DCIA = 0.04*I 1.7
Where: I = percent total impervious area (<10 percent and >50 percent) Table 4.2 provides the average percent perviousness and imperviousness of the City based on satellite imagery, and the resulting DCIA values that were used to populate the hydraulic model.
1Sutherland, R.C. Methodology for Estimating the Effective Impervious Area of Urban Watersheds.
Watershed Protection Techniques. Vol. 2, No. 1 (Fall 1995).
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-6
Table 4.2 Percent Impervious/Pervious Area by Land Use
Land Use Category Percent Impervious Percent Pervious Percent DCIA Commercial 91 9 85
High-Density Residential 89 11 82
Industrial 96 4 94
Low-Density Residential 72 28 58
Medium Density Residential 82 18 71
Medium Density Residential - Overlay 96 4 94
Mixed Use 88 12 80
Mixed Use - Overlay 87 13 80
Neighborhood Commercial 94 6 90
Public 69 31 53
Specific Plan 84 16 74
4.4.3.3 Non-Effective Percent Imperviousness
In residential urban areas, either a portion of the pervious runoff area has no flow path to the drainage system, or the flow path is via groundwater drains, which effectively delays runoff until it does not contribute to the design hydrographs. These areas are typically backyards, swimming pools, dense shrub landscaping, and gardens.
4.4.3.4 Pervious Area Runoff and Infiltration Parameters The remaining runoff originates from pervious areas. There are several ways to estimate the volume and/or the rate of infiltration of water into soil. Three excellent estimation methods are Green-Ampt, SCS method, and Horton's method. All these equations provide a relatively accurate assessment of the infiltration characteristics of the soil in question. Infiltration into the soil in pervious areas was estimated for each subbasin by the model using the Horton equation. Horton and Green-Ampt are widely used in SWMM, especially when using the SWMM runoff module. The Green-Ampt method accounts for multiple variables that other methods, such as Horton, do not. The Green-Ampt method is a function of the soil solution head, porosity, hydraulic conductivity, and time. Some of these parameters are difficult to estimate.
On the other hand, the Horton equation is an empirical formula that states that infiltration starts at a given rate and decreases exponentially with time. After a period of time, when the soil saturation level reaches a certain value, the rate of infiltration will become constant. Parameters for the Horton equation can be reasonably estimated from literature and USDA soil data.
Because the Horton parameters vary depending on soil type, soil maps were examined to determine the soil type within each drainage area. Weighted average soil properties were determined for each SWMM subbasin based on the amount of each hydrologic soil group in the subbasin and typical soil properties for each group.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-7
Four hydrologic soil groups are used. The soils are classified based on water intake at the end of long duration storms after prior wetting, an opportunity for swelling, and without the proactive effects of vegetation. The hydrologic soil groups are:
A. Soils having high infiltration rates even when thoroughly wetted and consisting chiefly of deep, well to excessively drained sands or gravels. These soils have a high rate of water transmission.
B. Soils having moderate infiltration rates when thoroughly wetted and consisting of moderately deep to deep, moderately well to well-drained soils with moderately fine to moderately coarse textures. These soils have a moderate rate of water transmission.
C. Soils having slow infiltration rates when thoroughly wetted and consisting chiefly of soils with a layer that impedes the downward movement of water or soils with moderately fine to fine texture. These soils have a slow rate of water transmission.
D. Soils having very slow infiltration rates when thoroughly wetted and consisting chiefly of clay soils with high swelling potential, soils with permanent high water table, soils with claypan or clay layer at or near the surface, and shallow soils over nearly impervious material. These soils have a very slow rate of water transmission.
By determining the percentages of each hydrologic soil group within a subbasin, maximum and minimum infiltration rates were calculated. The constant decay rate for Horton infiltration analysis was set to
0.0015 per second. Figure 4.2 shows the hydrologic soil groups within the City, which are based on data provided by the NRCS. As shown in Figure 4.2, the dominant Hydrologic Soil Group with the study area is Hydrologic Soil Group C, with a small portion designated as Hydrologic Soil Groups A and B (only 15 percent). Each soil group is associated with the typical infiltration soil properties as listed in Table 4.3.
A detailed Soil Resource Report for the City is provided in Appendix A.
Table 4.3 Infiltration Rates for NRCS Hydrologic Soil Groups Soil Group Maximum Infiltration Rate
(inches/hour)
Minimum Infiltration Rate
(inches/hour)
A 2.0 0.065
B 1.5 0.050
C 1.0 0.035
D 0.5 0.020
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 SVermontAve
S Western Ave
W Artesia Blvd
Marine Ave
W el Segundo Blvd
W 166th St
W 139th St
W Redondo Beach Blvd
S Budlong Ave
W 182nd St
W Rosecrans Ave
W 135th St
Van Ness Ave
Harbor Frwy & Transit Way
Harbor Fwy
Crenshaw Blvd
S Normandie Ave
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 2,0001,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 4.2 Hydrological Soil Group
CITY OF GARDENA
Legend
Gardena City Boundary
Soil Hydrological Group
C
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-9
4.5 Hydraulic Model
The InfoWorks ICM hydraulic model was used to simulate the hydraulic conditions in the City's storm drainage system. The computer hydraulic model was used to analyze the storm drainage system, to identify deficiencies, and to propose system improvements.
4.5.1 Elements of the Storm Drainage Hydraulic Model
The following provides an overview of the elements of a hydrologic storm drainage model and the required input parameters associated with each:
Nodes: Storm drain manholes, inlets, and catch basins, as well as other locations where pipe sizes change or where pipelines intersect, are represented by junctions in the hydraulic model. Required inputs for junctions include rim elevation, invert elevation, and surcharge depth. Nodes are also used to represent the location where flows are split or diverted between two or more downstream links. Conduits: Gravity storm drains, and open channels are represented as conduits in the hydraulic model. Input parameters for conduits include length, friction factors (e.g., Manning's n for gravity mains), invert elevations, and cross section information (diameter or dimensions). Outfalls: Outfalls represent areas where flow leaves the system. For storm drainage system modeling, an outfall typically represents a discharge to a channel or some other water body. Sub-catchments: Sub-catchments are hydrologic units of land whose topography and drainage system elements direct surface runoff to a single discharge point (i.e., a modeled junction). Required input parameters for sub-catchments include area, associated rain gauge, percent impervious, average sub-catchment width, slope, soil types, and overland flow parameters.
4.5.2 Hydraulic Model Update Process
The InfoWorks ICM hydraulic model was used to simulate the hydraulic conditions in the City's storm drainage system. The computer hydraulic model was used to analyze the storm drainage system, to identify deficiencies, and to propose system improvements.
The hydraulic model update process consisted of six steps, as described below:
Step 1: Storm drainage system data was obtained from multiple sources to support the development of the InfoWorks ICM model. NPS conducted a field survey and provided GIS shapefiles containing the locations of catch basins and manholes, along with an accompanying report that detailed pipe attributes such as length, material, connectivity (from-node and to-node), and functional status.
Additional data sources included the County GIS online portal, which was referenced for catch basin locations, and a PDF document provided by the City that identified ownership (City vs. County) of catch basins.
Step 2: Based on the data compiled in Step 1, the storm drainage network was reviewed, cleaned, and verified within ArcGIS Pro. This process included confirming connectivity between nodes, identifying data gaps or inconsistencies, and aligning catch basin and manhole attributes with available survey and other available data. Once the network was quality-checked and finalized, it was imported into the InfoWorks ICM.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-10
Step 3: To address gaps in the storm drainage network data, Carollo requested as-built drawings from the City. Where available, these drawings were used to fill in missing invert elevations and other relevant attributes. In areas where as-built information was not available, reasonable engineering assumptions were made to estimate the missing data, such as invert elevations and pipe slopes, based on surrounding infrastructure and standard design practices.
Key properties within the InfoWorks ICM model, such as pipe inverts, lengths, and ground elevation, were flagged with their data source (e.g., "NPS Survey," "As-Built," or "Assumed") to document the origin of each dataset and support future verification or updates. Step 4: New sub-catchments were delineated in GIS to reflect the most up-to-date conditions. These sub-catchments incorporate current data on soil type, surface slope, flow path width, and percent imperviousness to ensure accurate hydrologic representation within the model. Step 5: Once all the relevant data was input into the hydraulic model, the model was reviewed to verify that the model data was input correctly and that the flow direction and size of the modeled facilities were logical.
Step 6: The hydraulic model contains certain run parameters that need to be set by the user at the beginning of the project. These include run dates, time steps, reporting parameters, output units, and flow routing method. Once the run parameters were established, the model was debugged to ensure that it ran without errors or warnings.
4.6 Model Verification
The reasonableness of the model results and the hydraulic grade line profiles were evaluated during the initial model runs. This was accomplished by comparing areas of flooding predicted by the model with observations offered by the City. Areas around the City that experience flooding were confirmed by the model results. Following the verification process, the model was used for the existing and future storm drainage system analysis.
4.6.1 Historical Rainfall Event Analysis
The City experienced two significant storm events during the 2023–2024 period. The first occurred on January 14-15, 2023, with a total recorded rainfall depth of 1.80 inches. The second event occurred on February 4-6, 2024, with a total recorded rainfall depth of 5.19 inches. Historical rainfall data for both events were obtained from the West Gardena Station on Wundermap and applied in the hydraulic model to evaluate system performance and potential flooding. The classification of the historical rainfall events is provided in Figure 4.3. As shown, the maximum classification for the January 2023 event is approximately a 2-year, 4-hour event, and the maximum classification for the February 2024 event is approximately a 10-year, 2-day event.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 4-11
Figure 4.3 Classification of the Historical Rainfall Events City staff confirmed that no flooding was observed within the service area during either event. Both storm events were evaluated in the hydraulic model. Overall, the 2024 event generated a substantially higher total runoff volume due to greater rainfall depth and storm duration; however, the peak instantaneous runoff was lower than the 2023 event, indicating that the rainfall was distributed over a longer period with less short-duration intensity. This finding aligns with City staff's observation that no flooding occurred during either storm, as the system was able to convey the flows without exceeding capacity.
4.7 Flow Direction Map
As part of Task 4.1, Carollo delineated both urban and natural watersheds with their respective flow paths tributary to the City. The work also included the development of Street Flow Directional Maps, which illustrate overland flow directions along roadways. For most streets, two flow arrows were assigned (one in each direction), with the exception of alleys that contain a center gutter. The flow direction map is provided in Appendix B.
Using engineering drawings and aerial imagery from Google Earth, flow paths associated with City-maintained catch basins were delineated and incorporated into the model. A comprehensive layer containing both City and County storm drainpipes was also developed to ensure accurate representation of the system. Sub-catchments were then delineated and linked to the corresponding City and County infrastructure within the model.
These steps are critical to ensure accurate runoff routing and reliable simulation of system performance under existing and future conditions.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 5-1
CHAPTER 5 CAPACITY EVALUATION AND PROPOSED
IMPROVEMENTS
This chapter presents the results of the capacity evaluation of the storm drainage system and the proposed projects that correct capacity deficiencies and serve future users.
5.1 Capacity Evaluation
Evaluation of the capacity of the City's storm drainage system involved identifying areas in the system where street flooding exceeded the maximum criteria. For the 10-year design event, the maximum HGL was not allowed to exceed the ground level (i.e., no flooding permitted). The storm drainage criteria allowed flooding up to 1 foot above the gutter flow line in the 50-year design storm event. Storm drains that lacked sufficient capacity to convey runoff generated from the design storm could produce backwater effects in the drainage system and potentially cause flooding. This chapter discusses the possible locations of existing and future flooding caused by these deficiencies. When an increase to capacity is required, it was assumed, unless otherwise noted, that storm drains would be replaced with a larger diameter pipeline.
When evaluating the adequacy of the storm drainage facilities serving existing developments, city streets were allowed to provide additional storage capacity through temporary flooding, where available. This approach reduced the number of required storms drain improvements. However, for storm drains located in city streets, the goal was to contain storm flows within the drainage pipelines, with only minimal ponding permitted during the 10-year design storm. Figure 5.1 illustrates the existing system capacity deficiencies under the 10-year, 24-hour design storm. For this analysis, no flooding was allowed, as it was used to evaluate pipeline sizing.
The storm drainage criteria allowed city streets to flood up to 1 foot above the gutter flow line in the 50-year design storm. If flooding exceeded 1 foot and additional gutter capacity was not available, then an improvement was necessary to correct the deficiency. Drainage pipes within a street that cannot be supplemented by overland flow should be designed to have sufficient capacity to convey the 50-year design storm while maintaining a hydraulic grade line below the manhole rim elevations. Figure 5.2 illustrates the existing system capacity deficiencies under the 50-year, 24-hour Design Storm.
Figures 5.1 and 5.2 show the modeled sub-catchments and their respective peak outflows to the storm drain system for the 10-year and 50-year design storms, respectively. The peak outflow from each sub-catchment is calculated based on rainfall, infiltration, depression storage for pervious and impervious areas, and flow routing. These outflows, expressed in gallons per minute, represent the water from each sub-catchment, entering the storm drain system. While higher peak outflows indicate areas where the drainage system may experience larger volumes of runoff, they do not necessarily correspond to flooding, as the system may have sufficient capacity to convey these flows. The figures and associated values are used as inputs to the hydraulic model to evaluate system performance and identify locations that could be susceptible to capacity constraints under the design storms.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 SVermontAve
S Western Ave
W Artesia Blvd
Marine Ave
W el Segundo Blvd
W 166th St
W 139th St
W Redondo Beach Blvd
S Budlong Ave
W 182nd St
W Rosecrans Ave
W 135th St
Van Ness Ave
Crenshaw Blvd
Harbor Frwy & Transit Way
Harbor Fwy
S Normandie Ave
Dominguez Channel
Dominguez Channel
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 2,0001,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 5.1 10-Year, 24-Hour Design Storm Deficiency
CITY OF GARDENA
Legend
Non-Flooding Manhole
Flooding Manhole
Modeled Storm Lines
Waterways
Gardena City Boundary
Peak Subcatchment Outflow (gal/min)
< 100
100 - 500
500 - 1,000
1,000 - 3,000
> 3,000
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 SVermontAve
S Western Ave
W Artesia Blvd
Marine Ave
W el Segundo Blvd
W 166th St
W 139th St
W Redondo Beach Blvd
S Budlong Ave
W 182nd St
W Rosecrans Ave
W 135th St
Van Ness Ave
Crenshaw Blvd
S Normandie Ave
Harbor Frwy & Transit Way
HarborFwy
Dominguez Channel
Dominguez Channel
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 2,0001,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 5.2 50-Year, 24-Hour Design Storm Deficiency
CITY OF GARDENA
Legend
Non-flooding Manhole
Flooding Manhole
Modeled Storm Lines
Waterways
Gardena City Boundary
Peak Subcatchment Outflow (gal/min)
< 100
100 - 500
500 - 1,000
1,000 - 3,000
> 3,000
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 5-4
5.2 Storm Drainage System Capacity Improvements
The recommended improvements to mitigate deficiencies under the 10-year and 50-year design storm events are shown on Figure 5.3. The following sections provide detailed descriptions of each recommended improvement as well as proposed project prioritization.
5.2.1 Capital Project Prioritization
When fully implemented, the capital projects will facilitate the collection, conveyance, storage, and discharge of peak storm flows to limit street flooding to the maximum allowed. Prioritizing the required capital improvements for the City's storm drainage system is an important aspect of the Master Plan.
The recommended pipeline improvements are developed through an iterative design process. First, capacity-deficient pipelines contributing to surcharging or exceeding the hydraulic grade line are identified. The existing system performance is then evaluated under the applicable design storm (e.g., 10-year or 50-year, 24-hour). Initial pipe upsizing is proposed to mitigate surcharging and ensure the hydraulic grade line remains below the ground surface or rim elevation. Hydraulic analyses are re-run to assess the effectiveness of these improvements, and pipe sizes are adjusted iteratively until the system meets all capacity, hydraulic grade line, and flooding criteria. When prioritizing improvements, projects that achieve the greatest reduction in flood volume are given priority. Constructability and cost considerations are also factored into prioritization to ensure that the recommended improvements are both feasible and economically efficient.
In addition, coordination with the City was an important part of the process. Since the City has already completed or scheduled projects in some of the same locations, consultation was necessary to avoid reopening recently improved streets. Through this collaboration, the Capital Improvement Program (CIP) projects were arranged to align both technical needs and the City's ongoing efforts.
5.2.2 10-Year Design Storm Improvements
This section provides a detailed description of each proposed storm drain collection system project to alleviate the 10-year, 24-hour design storm deficiencies. One primary aspect of the City's storm drainage system improvements is the development and implementation of a storm drain maintenance and inspection program as a part of a long-term rehabilitation/replacement program. This maintenance program is described in detail in Chapter 6 of this Master Plan.
Details of each improvement are provided in Table 5.1, with improvement IDs corresponding to those shown in Figure 5.3. For the improvement projects, the proposed diameter is shown along with the length of pipe. Figure 5.3 and Table 5.1 should be used together to locate the proposed improvement on the map and to gain details of the improvement (length, diameter, street location, etc.). It should be noted that all improvements were sized to accommodate the 50-year, 24-hour design storm volumes. Therefore, while the improvements listed below are required to alleviate a 10-year, 24-hour design storm deficiency, they are all sized to accommodate the 50-year, 24-hour design storm volumes.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 !P
!P !P
!P
!P!P
!P
!P
!P
!P !P
!P
!P
!P
!P
SD-14
SD-03
SD-13
SD-17
SD-05
SD-02
SD-16
SD-08
SD-11
SD-04
SD-06
SD-09 SD-10
SD-15
SD-01
SD-07
SD-12
SD-07
SVermontAve
S Western Ave
W Artesia Blvd
W 144th St
W el Segundo Blvd
W 166th St
W 139th St
W Redondo Beach Blvd
W 182nd St
SBudlongAve
W Rosecrans Ave
W 135th St
Van Ness Ave
Crenshaw Blvd
S Normandie Ave
HarborFrwy&
TransitW
ay
Harbor Fwy
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 2,0001,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 5.3 Proposed Capacity Improvements
CITY OF GARDENA
Legend
!P Outfall
Modeled City Storm
Drains
10-Year Storm
Deficiencies
50-Year Storm
Deficiencies
Waterways
Gardena City Boundary Dominguez Channel
Dominguez Channel
110
91 91
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 5-6
Table 5.1 10-Year, 24-Hour Design Storm Improvements
Improvement ID Original Diameter
(inches)
Improvement Diameter
(inches)
Total Length
(feet)
SD-01 18-33 24-48 3,545
SD-02 10-18 18-36 1,715
SD-03 12 18 80
SD-04 15 21, 24 1,210
SD-05 6 12 35
SD-06 15-18 18-30 1,490
SD-07 12-40 18-48 2,150
SD-08 24 30-42 1,490
SD-09 24 36 1,865
SD-10 18 30-36 890
Total 14,470
The following improvements are recommended for the stormwater collection system to mitigate hydraulic deficiencies. Each project addresses the replacement of capacity-deficient pipelines that contribute to surcharge during the 10-year 24-hour design storm.
S New Hampshire Avenue (SD-01): This project consists of replacing approximately 3,545 feet of 18- to 33-inch diameter pipelines along S New Hampshire Avenue with 24- to 48-inch diameter pipelines.
Magnolia Avenue (SD-02): This project consists of replacing approximately 1,715 feet of 10- to 18-inch diameter pipelines along Magnolia Avenue with 18- to 36-inch diameter pipelines. W 135th Street (SD-03): This project consists of replacing approximately 80 feet of 12-inch diameter pipelines along W 135th Street with 18-inch diameter pipelines. W 160th Street (SD-04): This project consists of replacing approximately 1,210 feet of 15-inch diameter pipelines along W 160th Street with 21- and 24-inch diameter pipelines. W 144th Street (SD-05): This project consists of replacing approximately 35 feet of 6-inch diameter pipelines along W 144th Street with 12-inch diameter pipelines. S Normandie Avenue (SD-06): This project consists of replacing approximately 1,490 feet of 15- to 18-inch diameter pipelines along S Normandie Avenue with 18- to 30-inch diameter pipelines.
The improvement is intended to upgrade the capacity of the existing system. S Western Avenue (SD-07): This project consists of replacing approximately 2,150 feet of 12- to 40-inch diameter pipelines along S Western Avenue with 18- to 48-inch diameter pipelines. W Redondo Beach Boulevard (SD-08): This project consists of replacing approximately 1,490 feet of 24-inch diameter pipelines along W Redondo Beach Boulevard with 30- to 42-inch diameter pipelines. W Artesia Boulevard (SD-09): This project consists of replacing approximately 1,865 feet of 24-inch diameter pipelines along W Artesia Boulevard with 36-inch diameter pipelines. W Artesia Boulevard (SD-10): This project consists of replacing approximately 890 feet of 18-inch diameter pipelines along W Artesia Boulevard with 30- to 36-inch diameter pipelines.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 5-7
5.2.3 50-Year Design Storm Improvements
This section provides a detailed description of each proposed storm drain collection system project for the 50-year improvements.
Table 5.2 shows details of each improvement, including the improvement figure number corresponding to Figure 5.3. For future storm drains, the proposed diameter is shown along with the length of pipe.
Figure 5.3 and Table 5.2 should be used together to locate the proposed improvement on the map and to gain details of the improvement (length, diameter, street location, etc.).
Table 5.2 50-Year, 24-Hour Design Storm Improvements
Improvement ID Original Diameter
(inches)
Improvement Diameter
(inches)
Total Length
(feet)
SD-11 12 15 350
SD-12 24 30 550
SD-13 18 24 125
SD-14 30 36 1,195
SD-15 12, 15 15, 18 540
SD-16 12-24 24-30 1,475
SD-17 12, 15 18, 24 515
Total 4,750
The following improvements are recommended for the stormwater collection system to mitigate hydraulic deficiencies. Each project involves replacing capacity-deficient pipelines that contribute to surcharging during the 50-year, 24-hour design storm. The analysis allows for up to 1 foot of surface flooding and was used to evaluate the overall system, including associated basins. Marine Avenue (SD-11): This project consists of replacing approximately 350 feet of 12-inch diameter pipelines along Marine Avenue with 15-inch diameter pipelines. 129th Street (SD-12): This project consists of replacing approximately 550 feet of 24-inch diameter pipelines along 129th Street with 30-inch diameter pipelines. W 139th Street (SD-13): This project consists of replacing approximately 125 feet of 18-inch diameter pipelines along W 139th Street with 24-inch diameter pipelines. Van Ness Avenue (SD-14): This project consists of replacing approximately 1,195 feet of 30-inch diameter pipelines along Van Ness Avenue with 36-inch diameter pipelines. W 139th Street (SD-15): This project consists of replacing approximately 540 feet of 12- and 15-inch diameter pipelines along W 139th Street with 15- and 18-inch diameter pipelines. W 166th Street (SD-16): This project consists of replacing approximately 1,475 feet of 12- to 24-inch diameter pipelines along W 166th Street with 24- and 30-inch diameter pipelines. W 159th Street (SD-17): This project consists of replacing approximately 515 feet of 12- and 15-inch diameter pipelines along W 159th Street with 18- and 24-inch diameter pipelines.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 6-1
CHAPTER 6 CONDITION ASSESSMENT AND
REHABILITATION/REPLACEMENT PROGRAM
This chapter presents the storm drain system condition evaluations program of the City's existing storm drainage infrastructure in support of a rehabilitation/replacement (R&R) program for the City’s storm drainage system. These efforts provide a preliminary understanding of system conditions and inform the development of the CIP which is included in Chapter 7.
6.1 Storm Drainage System Condition Assessment
This section presents the results of a condition assessment of the City's storm drains. The objective of the assessment was to identify potential condition-related risks and prioritize areas for future investigation, rehabilitation, or replacement. The assessment included a review and analysis of closed-circuit television (CCTV) inspection data for the City owned storm drains.
6.1.1 Closed-Circuit Television Inspection Findings
The City completed a targeted CCTV inspection of approximately 5.5 miles of its storm drainage system starting in 2024 and continued through 2025. The CCTV inspections were completed in accordance with National Association of Sewer Service Company’s (NASSCO) Pipeline Assessment and Certification Program (PACP) framework to evaluate structural and operations and maintenance (O&M) defects.
CCTV inspection records serve as the basis for assessing the condition of storm drains within this analysis.
In a CCTV inspection, a camera mounted on a robotic tractor physically travels through the pipe allowing an inspector to record defects and features based on the type of observations and location within the pipe. These observations are initially recorded qualitatively, then standardized into quantitative condition grade that support evaluation of structural integrity and operational performance.
6.1.1.1 Scoring and Findings
NASSCO's PACP provides a consistent, standardized framework for rating defects observed during CCTV inspections. The PACP standardized codes categorize observations into four families: structural defects, O&M observations, construction features, and miscellaneous features. The system provides a consistent method for evaluating pipe conditions, enabling standardized data management, and comparison for infrastructure planning.
Additionally, the PACP standard categorizes defects by type, severity, and location along a pipe segment, assigning numeric grades that quantify individual defect conditions. These grades are then used to generate composite condition scores, enabling consistent evaluation of overall pipe condition. Each segment is evaluated for both structural and O&M defects. Under PACP, defects are graded on a 1 to 5 scale where 1 indicates generally good condition and 5 indicates debilitating impairments and significant reduction in a pipe’s service life. Grade 0 defects are used for general observations and required codes.
Table 6.1 describes the structural and O&M defects associated with grades 1 through 5.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 6-2
Table 6.1 NASSCO PACP Structural and O&M Grade Descriptions Grade Structural Defects O&M Defects
1 Minor defects, no effect on service life (e.g., fine
cracks, slight surface wear).
Minor O&M issues (e.g., light film of grease, small roots at joint, debris <10% cross-section). Routine maintenance not urgent.
2 Defects present, not yet affecting capacity or
integrity (e.g., moderate cracks, slight joint offset).
Noticeable O&M issues (e.g., moderate debris, grease, or roots ~10–20% cross-section). Maintenance should be
scheduled.
3 Significant defects that may begin to affect
structural integrity or capacity (e.g., fractures,
moderate deformation, infiltration evidence).
Significant O&M issues (e.g., roots, grease, deposits
covering ~20–50% of cross-section). Maintenance required soon.
4 Severe defects reducing service life or risking
failure (e.g., broken pieces, severe deformation,
major joint offset, infiltration).
Severe O&M issues (e.g., large root masses, grease plugs, debris covering ~50–80% of cross-section). High-priority maintenance.
5 Most severe defects; imminent or existing failure
(e.g., collapse, severe deformation >40%, holes,
severe infiltration).
Most severe O&M issues; obstruction >80% of
cross-section, near or full blockage. Immediate/emergency maintenance needed.
Each pipe segment receives a "Maximum Defect Grade" and "Overall Segment Grade" based on the highest observed defect. The PACP system also supports assignment of defect codes, location references (e.g., distance from upstream manhole), and digital images or videos for documentation.
Table 6.2 summarizes the findings from the 2024 and 2025 inspections. Figure 6.1 and Figure 6.2 show the maximum structural grade, and O&M grade for each inspected segment, respectively.
Table 6.2 Summary of CCTV Condition Ratings for Main Trunk Sewer (PACP Scoring) Condition Metric Value
Total Length Inspected 29,200 lf
Inspection Year 2024 and 2025
No Structural Defects 125 (81%)
Maximum Structural Grade 1–2 (Good to Fair) 16 (10%)
Maximum Structural Grade 3 (Moderate Defects) 8 (5%)
Maximum Structural Grade 4 (Poor Condition) 6 (4%)
Maximum Structural Grade 5 (Immediate Attention) 0 (0%) Maximum O&M Grade 3 (Significant Issues) 20
Maximum O&M Grade 4–5 (High Debris/Root Intrusion) 2
Most Common Structural Defects Multiple cracks, joint offsets Most Common O&M Defects Deposits, roots
Notes:
lf - linear feet
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 6-3
6.1.1.2 Key Observations
Key findings from the 2024 and 2025 inspections include:
4 percent of inspected segments had Structural Grades of 4 or higher. Common structural defects included fractures, cracks, and joint offsets. Six segments were identified as high priority for renewal.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 SVermontAve
S Western Ave
W Artesia Blvd
Marine Ave
W el Segundo Blvd
W 166th St
W 139th St
W Redondo Beach Blvd
S Budlong Ave
W 182nd St
W Rosecrans Ave
W 135th St
Van Ness Ave
Harbor Frwy & Transit Way
Harbor Fwy
Crenshaw Blvd
S Normandie Ave
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 2,0001,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 6.1 Maximum Structural Grades from CCTV Inspection
CITY OF GARDENA
Legend
Storm Line by Maximum
Structural Grade
0 - No Defects
1 - Minor Defects
2 - Noticeable Defects
3 - Significant Defects
4 - Severe Defects
5 - Most Severe Defects
Gardena City Boundary
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 SVermontAve
S Western Ave
W Artesia Blvd
Marine Ave
W el Segundo Blvd
W 166th St
W 139th St
W Redondo Beach Blvd
S Budlong Ave
W 182nd St
W Rosecrans Ave
W 135th St
Van Ness Ave
Harbor Frwy & Transit Way
Harbor Fwy
Crenshaw Blvd
S Normandie Ave
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 2,0001,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure 6.2 Maximum O&M Grades from CCTV Inspection
CITY OF GARDENA
Legend
Storm Line by O&M Grade
0 - No Defects
1 - Minor Defects
2 - Noticeable Defects
3 - Significant Defects
4 - Severe Defects
5 - Most Severe Defects
Gardena City Boundary
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 6-6
6.2 Condition Based Recommendations
Two sets of recommendations were developed to mitigate structural deficiencies and recommended O&M activities based on the condition assessment data. Table 6.3 summarizes these recommendations.
The pipe segments flagged as needing a structural project were cross-checked with the capacity project recommendations developed in Chapter 5. Segments that overlapped with capacity projects had their condition assessment project removed. A total of four segments were identified as needing an R&R project.
In addition, Table 6.3 lists pipe segments with recommended O&M activities consisting of root control and cleaning. These recommendations do not have projects IDs as they are recommended to be completed during the City’s routine O&M efforts.
Table 6.3 System Condition Projects Summary
Project ID Location / Description Basis for Recommendation Recommended Action
Pipe
Diameter
(inches)
Pipe
Length
(linear feet)
Capacity
Project?
SD-18 134th Place Segment is coded as
Broken. Replacement
recommended.
Replace 12 250 No
SD-19 Vermont Avenue Segment has longitudinal
fractures. Lining is
recommended.
Line 30 655 No
SD-20 139th Street Segment has an infiltration
dripper. Spot repair
recommended.
Spot Repair -- 275 No
SD-20 132nd Street Segment has fine deposits.
Spot repair recommended.
Spot Repair -- 20 No
- Budlong Avenue Roots present. Root control
recommended.
Root Control 18 240 -
- Magnolia Avenue Roots present. Root control
recommended.
Root Control 18 190 -
- 169th Place Roots present. Root control
recommended.
Root Control 18 90 -
- Hobart Boulevard Roots present. Root control
recommended.
Root Control 12 80 -
- Redondo Beach Boulevard Roots present. Root control
recommended.
Root Control 15 100 -
- Redondo Beach Boulevard Roots present. Root control
recommended.
Root Control 60 60 -
- 156th Street Grease present. Inspection
recommended.
Inspect Source
of Grease
36 0 -
- Rosecrans Avenue Grease present. Inspection
recommended.
Inspect Source
of Grease
30 0 -
- Redondo Beach Boulevard Grease present. Inspection
recommended.
Inspect Source
of Grease
24 0 -
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 6-7
Project ID Location / Description Basis for Recommendation Recommended Action
Pipe
Diameter
(inches)
Pipe
Length
(linear feet)
Capacity
Project?
- 139th Street Cleaning recommended. Clean 60 280 -
- 132nd Street Cleaning recommended. Clean 36 20 -
- Budlong Avenue Cleaning recommended. Clean 15 70 -
- 139th Street Cleaning recommended. Clean 36 330 -
- Budlong Avenue Cleaning recommended. Clean 15 30 -
- Budlong Avenue Cleaning recommended. Clean 15 10 -
- 168th Street Cleaning recommended. Clean 18 50 -
- New Hampshire Avenue Cleaning recommended. Clean 30 550 - - La Salle Avenue Cleaning recommended. Clean 12 20 -
- Rosecrans Avenue Cleaning recommended. Clean 33 310 - - Alley Cleaning recommended. Clean 15 40 -
- Alley Cleaning recommended. Clean 15 40 -
- 170th Street Cleaning recommended. Clean 15 40 -
- Catalina Avenue Cleaning recommended. Clean 18 10 -
- 139th Street Cleaning recommended. Clean 60 450 -
6.2.1 Ongoing/Recommended Condition Assessment Strategy To improve asset management and facilitate accurate CIP planning, the following steps are recommended:
Inspect 10 percent of the system annually.
Clean storm drains prior to inspection.
Integrate inspection results into GIS and computerized maintenance management system platforms.
As more data is collected, the City can refine condition assessments, better manage risk, and optimize capital spending over time.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 7-1
CHAPTER 7 CAPITAL IMPROVEMENT PROGRAM
This chapter presents the recommended CIP for the City's storm drainage system, a summary of the capital costs, and a basic assessment of the possible financial impact on individual existing and future users. This chapter is organized to assist the City in making financial decisions and in planning storm drainage system improvements and maintenance activities for the 10-year and 50-year design storms. The CIP is based on the evaluation of the City's storm drainage system, planning area, and land use, as detailed in the recommended projects described in the previous chapters.
7.1 Project Prioritization
As discussed in Chapters 5 and 6, the capital projects identified will allow the City to provide reliable storm water conveyance throughout the service area. The improvement projects were prioritized based on the following factors:
Reducing the risk of stormwater ponding in the streets. Rehabilitating or replacing pipelines to prevent failures.
Based on these factors, each project was assigned an implementation year. More critical projects were phased into earlier phases (years) of the CIP.
7.2 Capital Improvement Project Costs
The proposed system improvements, capacity upgrades, and long-term maintenance plan set the foundation for the City's storm drainage system CIP. The cost estimates presented in this study are opinions developed from bid tabulations, cost curves, information obtained from previous studies, and Carollo's experience on other projects. The costs are based on the Engineering News-Record (ENR) Greater Los Angeles Construction Cost Index for May 2025, which is 15,977.
7.3 Cost Estimating Accuracy
The cost estimates presented in the CIP have been prepared for general master planning purposes and for guidance in project evaluation and implementation. Final costs of a project will depend on actual labor and material costs, competitive market conditions, final project scope, implementation schedule, and other variables such as preliminary alignment generation, investigation of alternative routings, and detailed utility and topography surveys.
The Association for the Advancement of Cost Engineering defines an order of magnitude estimate for master plan studies as an approximate estimate made without detailed engineering data. It is normally expected that an estimate of this type would be accurate within plus 50 percent to minus 30 percent. This section presents the assumptions used in developing order of magnitude cost estimates for recommended facilities.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 7-2
7.4 Construction Unit Costs
The construction costs are representative of storm drainage system facilities under normal construction conditions and schedules. Construction costs have been estimated for public works improvements, assuming new construction within existing developed areas.
7.4.1 Pipeline Unit Costs
Storm drainage system pipeline improvements range in size from 8 inches to 48 inches in diameter. Pipe casings up to 48 inches in diameter are included for major crossings (e.g., creeks, canals, highways, railroad). Pipeline unit costs are shown in Table 7.1. The construction cost estimates are based upon these unit costs, which are for "typical" field conditions with construction in stable soil at a depth ranging between 10 to 15 feet. The unit costs below were compared to bid summaries of a sewer master plan performed by Carollo for the City in 2021 and were similar to cost estimates considered. All unit costs presented in Table 7.1 are for reinforced concrete pipe (RCP).
Table 7.1 Pipeline Construction Unit Costs
Diameter (inches) Unit Cost ($/lf)(1)
8 $340
10 $400
12 $460
15 $585
18 $696
21 $773
24 $897
27 $1,033
30 $1,178
33 $1,264
36 $1,352
42 $1,557
48 $1,792
Notes:
(1) ENR Greater Los Angeles Construction Cost Index for May 2025 is 15,977.
7.5 Project Costs and Contingencies
Project cost estimates are calculated based on a variety of elements, such as the project location, size, length, land acquisition needs, and other factors. Allowances for project contingencies consistent with an order of magnitude estimate are also included in the project costs prepared as a part of this study, as outlined in this section.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 7-3
7.5.1 Baseline Construction Cost
The baseline construction cost is the total estimated construction cost, in dollars, of the proposed improvement. Pipeline baseline construction costs were calculated by multiplying the estimated length by the unit cost listed in Table 7.1. All costs are presented in 2025 dollars.
7.5.2 Estimated Construction Cost
Contingency costs must be reviewed on a case-by-case basis because they will vary considerably with each project. Consequently, it is appropriate to allow for uncertainties associated with the preliminary layout of a project. Such factors as unexpected construction conditions, the need for unforeseen mechanical items, and variations in final quantities are a few of the items that can increase project costs, making it wise to incorporate allowances in preliminary estimates. To assist the City in making financial decisions for these future construction projects, construction contingency costs will be added to the planning budget as percentages of the baseline construction cost, ultimately providing the estimated construction cost.
Since knowledge about site-specific conditions of each proposed project is limited at the master planning stage, a 30 percent contingency was applied to the baseline construction cost to account for unforeseen events and unknown conditions. A 30 percent contingency to account for unknown site conditions such as poor soils, unforeseen conditions, environmental mitigations, and other unknowns is typical for master planning projects. The estimated construction cost for the proposed storm drainage system improvement is the baseline construction cost plus the 30 percent construction contingency.
7.5.3 Capital Improvement Cost
Other project construction contingency costs include costs associated with project engineering design and services, construction management, and legal services. Engineering services associated with new facilities include preliminary investigations and reports; right-of-way acquisition; foundation explorations; preparation of drawings and specifications during construction; surveying and staking; sampling of testing material; and start-up services. For this study, engineering costs are assumed to equal 10 percent of the estimated construction cost.
Construction phase professional services cover items such as construction management, engineering services, materials testing, and inspections during construction. For this study, construction management costs are assumed to be equal to 10 percent of the estimated construction cost.
Finally, project administration costs cover items such as legal fees, environmental/CEQA compliance requirements, financing expenses, administrative costs, and interest during construction. The cost of these items varies, but for the purpose of this study, it is assumed that project administration costs equal
7.5 percent of the estimated construction cost.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 7-4
The capital improvement cost is the total of the estimated construction cost (including construction contingency) plus the other contingencies discussed in the previous paragraphs. As shown in the following sample calculation of the capital improvement cost, the total cost of all project construction contingencies (construction, engineering services, construction management, and project administration) is 65.8 percent of the baseline construction cost. The 30 percent construction contingency is applied to the baseline construction cost to determine the estimated construction cost. Then, the 10 percent for engineering services, 10 percent for construction management, and 7.5 percent for project administration are applied to the estimated construction cost. This results in a total mark-up of 65.8 percent of the baseline cost. Note that contingencies were not applied to land acquisition costs. Calculation of
65.8 percent is the overall mark-up on the baseline construction cost to arrive at the capital improvement cost. It is not an additional contingency.
Example:
Baseline Construction Cost $1,000,000
Construction Contingency (30%) $300,000
Estimated Construction Subtotal $1,300,000
Engineering Services (10%) $130,000
Construction Management (10%) $130,000
Project Administration (7.5%) $97,500
Capital Improvement Cost $1,657,500
A summary of the capital project costs is presented in Table 7.2. This table identifies the recommended improvement projects, provides a brief description of the project, identifies facility size (e.g., pipe diameter and length), and the capital improvement cost. The implementation timeframe was based on the priority of each project to correct existing deficiencies or to serve future users.
7.6 Capital Improvement Implementation
The CIPs are prioritized based on their urgency to mitigate existing deficiencies that currently cause flooding or capacity issues, other existing deficiencies, and for servicing anticipated development. The proposed capital improvements are based on analyses using both the 10-year and 50-year design storms.
Additionally, condition related improvements were recommended based on the condition assessment.
Proposed improvement implementation is described in more detail in Chapter 6. Exhibit maps for each improvement are provided in Appendix C.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 7-5
Table 7.2 Recommended Capacity Improvements
Project ID Project Name Description Existing Pipe
Size (inches)
Proposed Pipe Size
(inches)
Rounded Pipe
Length (feet)
Unit Cost
($/lf)
Baseline Construction
Cost ($)(3)
Total Construction
Cost ($)
Total Capital
Cost ($)(1,2,4,5,6)
Capacity Related Improvements
10-Year Improvements
SD-01 S New Hampshire Avenue Replacing approximately 3,545 feet of 18- to 33-inch diameter pipelines along S New Hampshire Avenue with 33- to 48-inch diameter pipelines. 18 33 25 $1,264 $31,700 $41,300 $52,600
18 24 155 $897 $139,100 $180,900 $230,600
24 30 85 $1,178 $100,200 $130,300 $166,100
33 42 1,535 $1,557 $2,389,300 $3,106,100 $3,960,300
33 48 1,745 $1,792 $3,127,200 $4,065,400 $5,183,400
SD-02 Magnolia Avenue Replacing approximately 1,715 feet of 10- to 18-inch diameter pipelines along Magnolia Avenue with 18- to 36-inch diameter pipelines. 10, 12 18 340 $696 $236,700 $307,800 $392,400
18 24 205 $897 $184,000 $239,200 $305,000
18 30 585 $1,178 $689,000 $895,700 $1,142,100
18 36 585 $1,352 $790,800 $1,028,100 $1,310,800
SD-03 W 135th Street Replacing approximately 80 feet of 12-inch diameter pipelines along W 135th Street with 18-inch diameter pipelines.
12 18 80 $696 $55,700 $72,500 $92,400
SD-04 W 160th Street Replacing approximately 1,210 feet of 15-inch diameter pipelines along W 160th Street with 21- and 24-inch diameter pipelines.
15 21 430 $773 $332,400 $432,200 $551,000
15 24 780 $897 $699,900 $909,900 $1,160,100
SD-05 W 144th Street Replacing approximately 35 feet of 6-inch diameter pipelines along W 144th Street with 12-inch diameter pipelines.
6 12 35 $460 $16,200 $21,100 $26,900
SD-06 S Normandie Avenue Replacing approximately 1,490 feet of 15- to 18-inch diameter pipelines along S Normandie Avenue with 18- to 30-inch diameter pipelines. The improvement is intended to upgrade the capacity of the existing system. 15 18 340 $696 $236,700 $307,800 $392,400
13, 15 24 455 $897 $408,300 $530,800 $676,800
18 30 695 $1,178 $818,600 $1,064,200 $1,356,900
SD-07 S Western Avenue Replacing approximately 2,135 feet of 12- to 40-inch diameter pipelines along S Western Avenue with 18- to 48-inch diameter pipelines. 12 18 300 $696 $208,800 $271,500 $346,100
12, 15 24 450 $897 $403,800 $525,000 $669,300
18, 24 30 450 $1,178 $530,000 $689,000 $878,500
40 42 320 $1,557 $498,100 $647,600 $825,700
40 48 630 $1,792 $1,129,000 $1,467,700 $1,871,400
SD-08 W Redondo Beach Boulevard Replacing approximately 1,490 feet of 24-inch diameter pipelines along W Artesia Boulevard with 30- to 42-inch diameter pipelines. 24 30 85 $1,178 $100,200 $130,300 $166,100
24 36 1,090 $1,352 $1,473,400 $1,915,500 $2,442,200
24 42 315 $1,557 $490,400 $637,600 $812,900
SD-09 W Artesia Boulevard Replacing approximately 1,865 feet of 24-inch diameter pipelines along W Artesia Boulevard with 36-inch diameter pipelines.
24 36 1,865 $1,352 $2,521,000 $3,277,300 $4,178,600
SD-10 W Artesia Boulevard Replacing approximately 890 feet of 18-inch diameter pipelines along W Artesia Boulevard with 30- to 36-inch diameter pipelines. 18 30 180 $1,178 $212,000 $275,600 $351,400
18 36 710 $1,352 $959,800 $1,247,800 $1,590,900
Subtotal 10-Year Improvements $17,610,500 $22,894,800 $29,190,600 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA 7-6
Project ID Project Name Description Existing Pipe
Size (inches)
Proposed Pipe Size
(inches)
Rounded Pipe
Length (feet)
Unit Cost
($/lf)
Baseline Construction
Cost ($)(3)
Total Construction
Cost ($)
Total Capital
Cost ($)(1,2,4,5,6)
50-Year Improvements
SD-11 Marine Avenue Replacing approximately 350 feet of 12-inch diameter pipelines along Marine Avenue with 15-inch diameter pipelines.
12 15 350 $585 $204,700 $266,200 $339,300
SD-12 129th Street Replacing approximately 550 feet of 24-inch diameter pipelines along 129th Street with 30-inch diameter pipelines.
24 30 50 $1,178 $58,900 $76,600 $97,700
SD-13 W 139th Street Replacing approximately 125 feet of 18-inch diameter pipelines along W 139th Street with 24-inch diameter pipelines.
18 24 125 $897 $112,200 $145,900 $186,000
SD-14 Van Ness Avenue Replacing approximately 1,195 feet of 30-inch diameter pipelines along Van Ness Avenue with 36-inch diameter pipelines.
30 36 1,195 $1,352 $1,615,400 $2,100,100 $2,677,600
SD-15 W 139th Street Replacing approximately 540 feet of 12- and 15-inch diameter pipelines along W 139th Street with 15- and 18-inch diameter pipelines. 12 15 265 $585 $155,000 $201,500 $257,000
15 18 275 $696 $191,400 $248,900 $317,300
SD-16 W 166th Street Replacing approximately 1,475 feet of 12- to 24-inch diameter pipelines along W 166th Street with 24- and 30-inch diameter pipelines. 12, 18 24 785 $897 $704,400 $915,800 $1,167,600
24 30 690 $1,178 $812,700 $1,056,600 $1,347,100
SD-17 W 159th Street Replacing approximately 515 feet of 12- and 15-inch diameter pipelines along W 159th Street with 18- and 24-inch diameter pipelines. 12 18 160 $696 $111,400 $144,900 $184,700
15 24 355 $897 $318,600 $414,200 $528,100
Subtotal 50-Year Improvements $4,284,700 $5,570,700 $7,102,400 Condition Related Improvements (Spot Repairs / Observed Deposits) (7) SD-18 134th Place Replacing approximately 250 feet of 6-inch diameter pipeline along 134th Place with a 12-inch diameter pipeline.
6 12 250 $460 $115,200 $149,800 $191,000
SD-19 Vermont Avenue Line approximately 655 feet of 30-inch diameter pipeline along Vermont Avenue. 30 30 655 $630 $412,700 $536,600 $684,100 SD-20 132nd Street and 139th Street This project consists of spot repairs for two storm drains along 132nd Street and 139th Street.
-- -- 2 $5,000 $10,000 $13,000 $16,600
Subtotal Condition Related Improvements $537,900 $699,400 $891,700 Total Capacity Related Improvements $22,433,100 $29,164,900 $37,184,700 Notes:
(1) All costs are in 2025 dollars.
(2) ENR Greater Los Angeles Construction Cost Index for May 2025 is 15,977. (3) Baseline construction cost is based on multiplying the unit cost by length of each proposed diameter. (4) Cost estimates do not include costs for land acquisition, easements or ROW acquisition. (5) Total project costs include a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost. (6) Estimated construction cost includes a 30% contingency of the baseline construction cost. (7) Condition related improvements consist of spot repairs and addressing observed defects or deposits in the storm drain system.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA
APPENDIX A SOIL RESOURCE REPORT
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 United States
Department of
Agriculture
A product of the National
Cooperative Soil Survey,
a joint effort of the United
States Department of
Agriculture and other
Federal agencies, State
agencies including the
Agricultural Experiment
Stations, and local
participants
Custom Soil Resource
Report for
Los Angeles County,
California,
Southeastern Part
Natural
Resources
Conservation
Service
February 10, 2025
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Preface
Soil surveys contain information that affects land use planning in survey areas.
They highlight soil limitations that af
fect various land uses and provide information
about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers.
Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment.
Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions.
The information is intended to help the land users identify and reduce the ef fects of
soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (
http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/contactus/? cid=nrcs142p2_053951).
Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations.
The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey
.
Information about soils is updated periodically. Updated information is available through the NRCS W
eb Soil Survey, the site for official soil survey information.
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color
, national origin, age, disability,
and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's T
ARGET Center at (202) 720-2600 (voice
and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer.
3 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Contents
Preface.................................................................................................................... 2 How Soil Surveys Are Made..................................................................................5 Soil Map.................................................................................................................. 8 Soil Map................................................................................................................9 Legend................................................................................................................10 Map Unit Legend................................................................................................ 11 Map Unit Descriptions.........................................................................................11 Los Angeles County, California, Southeastern Part........................................13 1013—Urban land-Centinela-Typic Xerorthents, fine substratum complex, 0 to 2 percent slopes............................................................. 13 1014—Urban land-Aquic Xerorthents, fine substratum-Cropley complex, 0 to 5 percent slopes............................................................. 15 1125—Urban land-Typic Xerorthents, terraced-Windfetch complex, 2 to 9 percent slopes................................................................................17 1130—Urban land-Windfetch-Typic Haploxerolls complex, 0 to 2 percent slopes.......................................................................................20 1133—Urban land-Thums-Windfetch complex, 0 to 2 percent slopes........ 22 W—Water....................................................................................................25 References............................................................................................................26 4 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations af
fecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity.
Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography
, geology, climate, water
resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA.
The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology
, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape.
Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. T
o construct an accurate soil map, however, soil
scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries.
Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color
, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units).
Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research.
The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides suf ficient information for the
development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas.
Soil scientists make many field observations in the process of producing a soil map.
The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil-landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded.
These measurements may include field measurements, such as those for color ,
depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape.
Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. V
alues for some properties are estimated from combinations of other properties.
While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under dif
ferent uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management.
Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil.
Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity
. Soil conditions are predictable over
long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date.
After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and Custom Soil Resource Report
6 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately .
Custom Soil Resource Report
7 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Soil Map
The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 9 Custom Soil Resource Report
Soil Map
3748200 3749000 3749800 3750600 3751400 3752200 3753000 3753800 3748200 3749000 3749800 3750600 3751400 3752200 3753000 3753800 377000 377800 378600 379400 380200 381000 381800
377000 377800 378600 379400 380200 381000
33° 55' 17'' N
118° 19' 50'' W
33° 55' 17'' N
118° 16' 41'' W
33° 51' 49'' N
118° 19' 50'' W
33° 51' 49'' N
118° 16' 41'' WN
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 11N WGS84 0 1500 3000 6000 9000
Feet
0 450 900 1800 2700
Meters
Map Scale: 1:31,300 if printed on A portrait (8.5" x 11") sheet.
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at
1:24,000.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as of the version date(s) listed below
.
Soil Survey Area: Los Angeles County, California, Southeastern Part
Survey Area Data: Version 11, Sep 3, 2024
Soil map units are labeled (as space allows) for map scales 1:50,000 or larger
.
Date(s) aerial images were photographed: Apr 14, 2022—Apr 23, 2022
The orthophoto or other base map on which the soil lines were compiled and digitized probably dif
fers from the background
imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident.
Custom Soil Resource Report
10 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 1013 Urban land-Centinela-Typic
Xerorthents, fine substratum
complex, 0 to 2 percent
slopes
408.8 7.7%
1014 Urban land-Aquic Xerorthents,
fine substratum-Cropley
complex, 0 to 5 percent
slopes
1,164.9 22.1%
1125 Urban land-Typic Xerorthents,
terraced-Windfetch complex,
2 to 9 percent slopes
1,053.1 20.0%
1130 Urban land-Windfetch-Typic
Haploxerolls complex, 0 to 2
percent slopes
2,520.8 47.8%
1133 Urban land-Thums-Windfetch
complex, 0 to 2 percent
slopes
127.5 2.4%
W Water 3.3 0.1%
Totals for Area of Interest 5,278.5 100.0%
Map Unit Descriptions
The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however
, the soils are natural phenomena, and they have the
characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class.
Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not af
fect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas Custom Soil Resource Report
11 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides suf
ficient information for the
development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas.
An identifying symbol precedes the map unit name in the map unit descriptions.
Each description includes general facts about the unit and gives important soil properties and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for dif
ferences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity
, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that af
fects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undif
ferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example.
An
association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately . The
pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example.
Custom Soil Resource Report
12 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Los Angeles County, California, Southeastern Part
1013—Urban land-Centinela-Typic Xerorthents, fine substratum complex, 0 to 2 percent slopes
Map Unit Setting
National map unit symbol: 2tb9h
Elevation: 0 to 120 feet
Mean annual precipitation: 13 to 15 inches
Mean annual air temperature: 62 to 64 degrees F
Frost-free period: 360 to 365 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Urban land: 55 percent
Centinela and similar soils: 20 percent
Typic xerorthents, fine substratum, and similar soils: 15 percent Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Urban Land
Setting
Landform: Terraces
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: 0 inches to manufactured layer Runoff class: Very high
Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Description of Centinela
Setting
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Discontinuous human-transported material over mixed alluvium Typical profile
^A - 0 to 3 inches: loam
^Cu - 3 to 17 inches: loam
2Bss - 17 to 37 inches: clay
2Bkss - 37 to 55 inches: clay
2Bk - 55 to 79 inches: clay loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Custom Soil Resource Report
13 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: Rare
Calcium carbonate, maximum content: 2 percent
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Sodium adsorption ratio, maximum: 4.0
Available water supply, 0 to 60 inches: High (about 9.9 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3s
Hydrologic Soil Group: C
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Description of Typic Xerorthents, Fine Substratum
Setting
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Human-transported material over mixed alluvium Typical profile
^A - 0 to 4 inches: clay loam
^Cu - 4 to 12 inches: clay loam
^C1 - 12 to 28 inches: clay
^C2 - 28 to 37 inches: loam
2Bkss - 37 to 55 inches: clay
2Bkss - 55 to 79 inches: clay
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Sodium adsorption ratio, maximum: 4.0
Available water supply, 0 to 60 inches: High (about 9.8 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3s
Hydrologic Soil Group: C
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Custom Soil Resource Report
14 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Minor Components
Aquic haploxerepts
Percent of map unit: 5 percent
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Typic xerorthents, coarse fill surface
Percent of map unit: 5 percent
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
1014—Urban land-Aquic Xerorthents, fine substratum-Cropley complex, 0 to 5 percent slopes
Map Unit Setting
National map unit symbol: 2w612
Elevation: 0 to 240 feet
Mean annual precipitation: 13 to 15 inches
Mean annual air temperature: 63 to 64 degrees F
Frost-free period: 360 to 365 days
Farmland classification: Prime farmland if irrigated and drained Map Unit Composition
Urban land: 55 percent
Cropley and similar soils: 20 percent
Aquic xerorthents, fine substratum, and similar soils: 20 percent Minor components: 5 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Urban Land
Setting
Landform: Alluvial fans
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: 0 inches to manufactured layer Runoff class: Very high
Frequency of flooding: Rare
Frequency of ponding: Rare
Custom Soil Resource Report
15 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8
Ecological site: R019XG911CA - Loamy Fan
Hydric soil rating: No
Description of Aquic Xerorthents, Fine Substratum
Setting
Landform: Alluvial fans
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Human-transported material over mixed alluvium Typical profile
^Au - 0 to 7 inches: loam
^Cu1 - 7 to 30 inches: loam
^Cu2 - 30 to 37 inches: loam
2Bkg - 37 to 79 inches: clay
Properties and qualities
Slope: 0 to 5 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Somewhat poorly drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: Rare
Frequency of ponding: Rare
Calcium carbonate, maximum content: 5 percent
Maximum salinity: Very slightly saline to slightly saline (2.0 to 4.0 mmhos/cm) Available water supply, 0 to 60 inches: High (about 10.3 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w
Hydrologic Soil Group: C
Ecological site: R019XG911CA - Loamy Fan
Hydric soil rating: No
Description of Cropley
Setting
Landform: Alluvial fans
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Discontinuous human-transported material over mixed alluvium Typical profile
^Au - 0 to 5 inches: clay loam
^Cu1 - 5 to 19 inches: clay
^Cu2 - 19 to 30 inches: clay
2Bkss - 30 to 47 inches: clay
2Bk - 47 to 79 inches: clay
Custom Soil Resource Report
16 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Properties and qualities
Slope: 0 to 5 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Moderately well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: Rare
Frequency of ponding: Rare
Calcium carbonate, maximum content: 3 percent
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 9.0 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3s
Hydrologic Soil Group: C
Ecological site: R019XG911CA - Loamy Fan
Hydric soil rating: No
Minor Components
Grommet
Percent of map unit: 5 percent
Landform: Alluvial fans
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
1125—Urban land-Typic Xerorthents, terraced-Windfetch complex, 2 to 9 percent slopes
Map Unit Setting
National map unit symbol: 2w615
Elevation: 20 to 260 feet
Mean annual precipitation: 13 to 15 inches
Mean annual air temperature: 63 to 64 degrees F
Frost-free period: 360 to 365 days
Farmland classification: Not prime farmland
Map Unit Composition
Urban land: 65 percent
Windfetch and similar soils: 15 percent
Typic xerorthents, terraced, and similar soils: 15 percent Minor components: 5 percent
Custom Soil Resource Report
17 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Urban Land
Setting
Landform: Fan remnants
Properties and qualities
Slope: 0 to 5 percent
Depth to restrictive feature: 0 inches to manufactured layer Runoff class: Very high
Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8
Ecological site: R019XG911CA - Loamy Fan
Hydric soil rating: No
Description of Typic Xerorthents, Terraced
Setting
Landform: Fan remnants
Landform position (three-dimensional): Tread, riser
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Human-transported material
Typical profile
^A - 0 to 5 inches: loam
^Cu1 - 5 to 15 inches: clay loam
^Cu2 - 15 to 30 inches: clay loam
^Cu3 - 30 to 55 inches: clay loam
^Cu4 - 55 to 79 inches: clay loam
Properties and qualities
Slope: 2 to 9 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 3 percent
Maximum salinity: Very slightly saline to slightly saline (2.0 to 4.0 mmhos/cm) Sodium adsorption ratio, maximum: 8.0
Available water supply, 0 to 60 inches: High (about 10.5 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: C
Ecological site: R019XG911CA - Loamy Fan
Hydric soil rating: No
Custom Soil Resource Report
18 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Description of Windfetch
Setting
Landform: Fan remnants
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Riser
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Discontinuous human-transported material over mixed alluvium Typical profile
^A - 0 to 2 inches: loam
^Au - 2 to 16 inches: loam
2Bt - 16 to 28 inches: clay loam
2Btk1 - 28 to 37 inches: clay loam
2Btk2 - 37 to 51 inches: loam
2Btk3 - 51 to 79 inches: loam
Properties and qualities
Slope: 2 to 9 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 3 percent
Maximum salinity: Very slightly saline to slightly saline (2.0 to 4.0 mmhos/cm) Sodium adsorption ratio, maximum: 12.0
Available water supply, 0 to 60 inches: High (about 10.8 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: C
Ecological site: R019XG911CA - Loamy Fan
Hydric soil rating: No
Minor Components
Centinela
Percent of map unit: 3 percent
Landform: Fan remnants
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Thums
Percent of map unit: 1 percent
Landform: Fan remnants
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Riser
Down-slope shape: Linear
Custom Soil Resource Report
19 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Across-slope shape: Linear
Hydric soil rating: No
Calcic haploxeralfs
Percent of map unit: 1 percent
Landform: Fan remnants
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Riser
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
1130—Urban land-Windfetch-Typic Haploxerolls complex, 0 to 2 percent slopes
Map Unit Setting
National map unit symbol: 2mytz
Elevation: 0 to 530 feet
Mean annual precipitation: 13 to 15 inches
Mean annual air temperature: 62 to 65 degrees F
Frost-free period: 360 to 365 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Urban land: 50 percent
Windfetch and similar soils: 25 percent
Typic haploxerolls and similar soils: 15 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Urban Land
Setting
Landform: Terraces
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: 0 inches to manufactured layer Runoff class: Very high
Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Custom Soil Resource Report
20 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Description of Windfetch
Setting
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Discontinuous human-transported material over mixed alluvium Typical profile
^A1 - 0 to 8 inches: loam
A2 - 8 to 26 inches: loam
A3 - 26 to 30 inches: loam
Bt - 30 to 41 inches: clay loam
Btk1 - 41 to 49 inches: clay loam
Btk2 - 49 to 79 inches: sandy clay loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 3 percent
Maximum salinity: Very slightly saline to slightly saline (2.0 to 4.0 mmhos/cm) Sodium adsorption ratio, maximum: 10.0
Available water supply, 0 to 60 inches: High (about 10.5 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: C
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Description of Typic Haploxerolls
Setting
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Discontinuous human-transported material over mixed alluvium Typical profile
A1 - 0 to 6 inches: loam
A2 - 6 to 17 inches: fine sandy loam
C1 - 17 to 43 inches: fine sandy loam
C2 - 43 to 79 inches: fine sandy loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Custom Soil Resource Report
21 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Drainage class: Well drained
Runoff class: Very low
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 8.8 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: B
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Minor Components
Sepulveda
Percent of map unit: 5 percent
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Thums
Percent of map unit: 4 percent
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
Abaft
Percent of map unit: 1 percent
Landform: Dunes
Landform position (three-dimensional): Rise
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: No
1133—Urban land-Thums-Windfetch complex, 0 to 2 percent slopes Map Unit Setting
National map unit symbol: 2p662
Elevation: 0 to 110 feet
Custom Soil Resource Report
22 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Mean annual precipitation: 12 to 14 inches
Mean annual air temperature: 63 to 64 degrees F
Frost-free period: 360 to 365 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Urban land: 50 percent
Thums and similar soils: 20 percent
Windfetch and similar soils: 15 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Urban Land
Setting
Landform: Terraces
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: 0 inches to manufactured layer Runoff class: Very high
Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Description of Thums
Setting
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Discontinuous human-transported material over alluvium and/or palustrine estuarine deposits
Typical profile
^A - 0 to 3 inches: loam
^C - 3 to 10 inches: loam
2Btk1 - 10 to 24 inches: clay loam
2Btk2 - 24 to 43 inches: clay
2Btkn - 43 to 59 inches: clay
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Maximum salinity: Very slightly saline to slightly saline (2.0 to 4.0 mmhos/cm) Custom Soil Resource Report
23 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Sodium adsorption ratio, maximum: 20.0
Available water supply, 0 to 60 inches: High (about 9.8 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3s
Hydrologic Soil Group: C
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Description of Windfetch
Setting
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Discontinuous human-transported material over alluvium and/or palustrine estuarine deposits
Typical profile
^Au - 0 to 5 inches: silt loam
^Cu - 5 to 16 inches: loam
2Btk1 - 16 to 35 inches: clay loam
2Btk2 - 35 to 47 inches: clay loam
2Btk3 - 47 to 57 inches: clay loam
2Btk4 - 57 to 65 inches: clay loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Maximum salinity: Very slightly saline to slightly saline (2.0 to 4.0 mmhos/cm) Sodium adsorption ratio, maximum: 12.0
Available water supply, 0 to 60 inches: High (about 10.8 inches) Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: C
Ecological site: R019XG909CA - Terrace
Hydric soil rating: No
Minor Components
Sepulveda
Percent of map unit: 10 percent
Landform: Terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Custom Soil Resource Report
24 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 Across-slope shape: Linear
Hydric soil rating: No
Typic argiaquolls, drained
Percent of map unit: 5 percent
Landform: Depressions
Landform position (three-dimensional): Dip
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: Yes
W—Water
Map Unit Composition
Water: 100 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Water
Interpretive groups
Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8
Hydric soil rating: Unranked
Custom Soil Resource Report
25 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 References
American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31.
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18, 2002. Hydric soils of the United States.
Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States.
National Research Council. 1995. Wetlands: Characteristics and boundaries.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U.S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/national/soils/?cid=nrcs142p2_054262
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www
.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www
.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, W etlands
Section.
United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. W
aterways Experiment Station Technical
Report Y-87-1.
United States Department of Agriculture, Natural Resources Conservation Service.
National forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ home/?cid=nrcs142p2_053374
United States Department of Agriculture, Natural Resources Conservation Service.
National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 26 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430-VI. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/soils/scientists/?cid=nrcs142p2_054242
United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296.
http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/? cid=nrcs142p2_053624
United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www
.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf Custom Soil Resource Report
27 Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA
APPENDIX B STREET FLOW DIRECTION MAPS
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## #
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
###
##### ####
## # ##
##
## ## ##
# # # # #
####
##
##
##
##
##
##
##
####
##
##
##
## #
##
##
##
##
# #
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ## #
#
#
#####
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
# #
#
##
##
##
#
#
#####
###
#
#
#
#
#
#
#
# ## ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
####
# ## ### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
# ## #
#
#
#
#
#
#
# ##
#
#
#
#
#
#
#
#
##
#
#
#
##
# ######
# #
#
#
# # #
#
#
#
#
# #
#
#
### ##
###### ######
###### ######
###### ######
### ##
#
#
###
#
# ##
#
#
#
#
#
#
#
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
# #### #
##
#
#
#
# ##
#
#
#
#
#
#
#
##
##### # ## # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
###
#
##
# ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##### #
#
#
#
#
#
#
#
#
# # ## # # # # # # # # #
##
#
## # # #
## #### #
#
#
#
#
#
#
#
#
#
#
#
## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## # # # # #
#
#
#
#
#
#
#
#
# ## #
# ## #
# ###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
## #
#
#
#
#
#
# # #
#
#
#
# #
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
# # ## # #
#
#
#
##
#
#
# #
#
#
# #
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### ###
##
## #
#
##
#
## ##
# ## # #
## ### #
#
#
#
#
#
#
# ##
# #
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
##
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
# #####
#
#
#
# ###
# #
#
#
#####
#
#
#
#
# # # # #
#
#
#
#
#
##
# #
##
# ##
#
#
#
# #
# ## #
# # #
# #
#
#
#
# # #
# # #
#
#
# # #
# ## #
#
# #
## #
#
#
#
#
#
# #
#
#
# ##
#
#
# ## # ###
#
# #
#
#
#
#
# #
## # #
#
#
#
# ##
###
##
#
#
#
#
#
#
#
####
#
#
#
#
## ## #
#
#
###
#
#
#
#
#
#
#
## ##
####
#
#
#
####
#
#
#
#
#
#
#
# #####
##### #
#
#
#
#
#
#
#
#
#
#
#
#
#####
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#### ####
#####
#
##
####
## ##
#
#
#
#
#
##### ####
#
#
## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ###
## ##
##
#
#
## #
#
#### ####
###
### ###
#
#
#
#
#
#
#
#
###
#
#
#
#
#
#
#
#
#
# ####
#
#
#
##
## ##
##
#
#
#
##
#
## #
#
##
##
#
#
#
## ### ##
####
## ##
#
#
#### ####
## #
#
#
#
#
#
#
#
#
#
#
##
#
##
#
## ## ##
#
##
## #
#
##
#
#
#
#
#
#
#
## ####
#
#
##
#
#
#
#
#
#
#
#
#
#
#
## ##
#
#
#
#
#
#
#
## ## #
#
#
#
##
##
## ##
## ##
# ## #
# ## # ## ##
# ## # ## ##
## ## ##
#
#
#
# #
#
#
#
# #
#
####
#
#
##
#
#
#
#
#
#
#
###
#
#
# #
#
# #
#
#
#
#
#
# ###
#
#
#
#
#
#
# ##
#
#
#
# #
#
#
##
#
#
# #
########
# # #
#
#
#
#
#
#
#
#
##
## ##
##
#
#
#
#
## ##
# ## #
#
#
#
#
#
#
## ##
## ### ## #
# ## ##
#
##
##
#
#
#
#
# #
#
##
##
#
#
# # ## # #
##
# # #
# # #
# # ## # #
# # #
# # ##
# # #
#
# ## # # #
#
## # #
# #
#
#
#
# ##
#
#
#
#
# ##
###
#
#
#
#
## #
#
#
#
#
#
# # ##
# ##
#####
#
#
#
###
## # #
#
#
#
#
#
# ## ## # # ## # #
# # ## # ###
## ## # ## #
## ## # ## #
## ## ## ## ## #
#
#
#
# #
##
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
######
#
##
#
#
#
#
### #
###
##
#
#
#
#
#
##
#
#
# ## ##
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
########
#
#
#
#
#
#
#
#
## ##
#
## ## ## ##
#
#
#
#
#
#
#
####
#
#
#
#
#
####
# ## ###
##
#
# ## ###
#
#
#
##
#
#
#
## #
#
#
# # #
#
#
#
#
# # ## # #
# ## ###
##
#
#
#
###
#
# # #
#
#
#
## ## ## #
## ## ####
## ###
#
#
#
# ## ##
#
#
# # # # #
#
# # # ## # ## #
#
#
#
#
# ## #
#
#
#
#
#
#
# ## #
# ## #
#
#
#
#
#
#
#
#
#
###
#### ##
# #
#
#
##
#
##
##
# # ## ### # #
#
#
#
#
#
#
# # #
#
#
#
#
#
#
# ## # #
#
#
# # #
##
##
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#######
#
## # # ## # # #
#
## ## #
#
# #
#
#
#
#
#
#
#
###
#
##
#
#
#
#
## #
#
#
# #
# #
## ## #
# #
##
# #
#
#
#
#
#
#
#
#
#
#
#
##
#
# ##
#
#
#
#
# #
#
# ## # # # #
##
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
# #
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
## #
#
#
#
##
##
#
#
#
# #
#
#
#
#
#
#
#
#
#
## #
#
#
#
#
#
## #
# # # # # #
#
# # # #
#
#
#
#
#
#
##
#
#
## ###
#
#
#
#
# #
#
#
#
#
#
#
#
#
## ### #
#
#
#
#
#
## #
# #
#
#
##
##
## # ## #
##
#
#
# ## #
# #
##
# ##### ##
#
# #### # # #
##
#
#
##
#
# #####
##
#
#
#
#
###
#
#
#
### ###
###
####
### ###
####
#
## ##
##
###
#
#
#
#
## # #
#
# ###
##
#
### #
##
##
##### # #
#
##
# # ######
##
#
#
#
#
#
#
#
#
### # # #
# # ## # ##
#
#
#
# # # ## # #
#
#
# #
#
##
#
#
#
# ##
#
#
# #
#
#
###
#
##
# #
# # ##
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
###
#
#
#
#
##
#
#
#
#
#
#
#
# ##
#
## ##
# #
#
#
#
#
#
# #
#
#
#
# #
#
#
#
#
#
#
#
###
#
#
# ## #
# # ## # # #
#
## # ## # #
# #
#
#
#
#
#
#
##
#
#
#
#
#
#
####
## ##
#
###
#
#
#
#
#
#
#
##
##
##
#
#
#
#
#
#
#
#
# # #
#
## #
###
##
#
# # # # #
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ##
#
# # #
###
#
#
# #
#
#
#
##
#
## # #
##
##
##
#
#
#
#
#
###
#
#
#
#
###
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
# #
#### #### #
# # # # #
#
# # # # # #
#
# # # # ## # # ## # # # #
#
#
#
# # #
#
#
# # #
## #
# # # #
#
#
#
#
#
# # ## #
## # ## # # ##
##
# # ## # #
## ##
## ##
#
## # # ## # ####
# # # ## # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
# # ## # #
# # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
# # # #
#
#
###
#
# # # # # # # #
# # # ## # # #
## ## ## ## ##
# ##
#
##
#
#
#
#
## # # # #
##
# # #
#
#
# # # # #
# # # #
#
#
#
#
#
#
# #
## #
#
#
#
# # ## ##
#### ##
#
####
######### ##
## #
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ##
#
#
#
#
#
#
##
## ## ##
#
#
#
#
#
#
##
#
##
#
#
#
#
#
#
##
#
#
#
# #
##
##
#
#
#
#
##
##
##
######
##
#
#
#
#
#
#
#
#
#
# ##
#
## #
## ##### # # #
#
#
#
#
# ###
### ## # ##
##
## ##
## # # #
#
### #
## #
##### # #
### #
#
#
##
# ## ##
#
# ## ## ### ## ##
##
## #
## ##
###
##
#
## # ##
### # ## #
#
##
##
#
#
#
# # # #
#
###
## ##
##
#
##
#
#
# #
## #
#
#
## # #
#
##
#
#
##
#### ####
### #
#
#
#
#
## ##
##
# # # #
# ###
##
####
#
#
#
# ##
##
##
## ##
# #
# #
## ####
### # #
## ##
#
##
##
##
##
####
#
#
#
# ##
#####
#
#
#
#
#
# #
# #
###
## ##
##
##
# # #
##
# ##
#
#
#
#
#
#
#
# # ## # #
# # #
# # # # # # #
# # # # # # #
#
#
##
## ## #
### ##
#
#
#
#
# ##
#
#
### ##
#
#
#
#
# #
#
###
##
#
#
#####
####
# #### #
#
# ### ##
## ####
#
#
#
#
# #
#
#
# ##
##
##
##
##
# ## #
# ## #
####
## ##
#
#
##
#
#
#
##
##
#
#
#
#
#
#
## ##
#### ##
##
## ##
#
#
#
#
# #
##
#
#
##
#### #### ##
####
#
#
#
#
#
#
#
#
#
####### # # # # #
##
#
#
#
#
#
#
#
#
#
######
##
#
##
#
#
#
#
##
# ## #
# ## #
#
#
##
# #
#
######
##
##
##
##
#
#
##
##
##
##
# ## #
#
#
#
# ## #
# ## #
## ##
#
### # # #
#
#
#
#
###
#### ## #
## ###
#
#
#
#
#
#
#
# # ## #
##
#
#
###
#
##
#
#
#
#
#
#
# ##
#
#
#
#
#
#
#
#
#
#
#
#
#
###### # ## # # #####
#
#
#
#
###
#
###
#
### ##
##
# #
#
##
## ### ## ## ##
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
Dominguez Channel
Dominguez Channel
A1 A2
A3
A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3
G4
H2 H3 H4
I2 I3 I4
S Vermont Ave
W 190th St
S Western Ave
W Artesia Blvd
W 166th St
177th St W 177th St
Evelyn Ave
Manhattan Beach Blvd
147th St
S Menlo Ave
Dalton Ave
Ermanita Ave
186th St
State Rte 213
145th St
Wadkins Ave
Purche Ave
S Lemoli Ave
Wilton Pl
W Alondra Blvd
S Halldale Ave
S Denker Ave
W 149th St
Manhattan Pl
Electric St
W 178th St
132nd St
W 134th Pl
S New Hampshire Ave
W 164th St
170th St
Chadron Ave
Raymond Ave
S Van Ness Ave
W 186th St
SSaintAndrewsPl W 153rd St
W 134th St
W 130th St
W 156th St
W 146th St
180th Pl
Cerise Ave
Denker Ave
BerendoAve
Halldale Ave
S Ainsworth St
W 154th St
W 127th St
W 126th St
W Gardena Blvd
W 121st St
W 122nd St
W 125th St
W 132nd St
W 168th St
Lemoli Ave
W Athens Blvd
W el Segundo Blvd
W 123rd St
Gramercy Pl
W 162nd St
171st St
W 144th St
W 124th St
Marine Ave
W 139th St
W 120th St
S Hoover St
W Redondo Beach Blvd
Century FwyGlenn Anderson Frwy & Transit Way
W 182nd St
S Budlong Ave
S Figueroa St
W Rosecrans Ave
W 135th St
San Diego Fwy
Van Ness Ave
Crenshaw Blvd
HarborFrwy&
TransitW
ay
Harbor Fwy
S Normandie Ave
Last Revised: March 13, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 0.30.15
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure B.1 Gardena Storm Street Flows Direction
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
Gardena City Boundary
County Parcels
Waterways
Inset A
91 405
110
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # #
######
#
#
# # # # # # # # # # # ## # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # #
# # # # # ## # #
#
#
#
##
#
#
# #
#
# # # # # #
# # # # # # #
# # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ## # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # #
# # # # # #
# # # # # # # # # # # #
## # # # # #
#######
# ## #
#
##
# # # # # # # # # # #
######
##########
########
######
# # # # # # # # # # # #
# # # # ##
#
##################
#
#
#
#
#
#
# # #
#
# # #
########
### # #
###
# ##
#
#
#
#
#
#
#
#
##########
#
#
#
#
# # # # # #
#####
# # # # # # # # # ## # # # # # # # # #
# # # # # # #
##
##
## #
###
# ###
#
##
#
# #
#
#
#
#
# # #
###
#
#
###
#
#
#
#
#
#
#
## # #
## ### ## ## # #####
##
#
#
##
# # ##
# ###
#
#
#
# #
#
#
# #
#
#
#
####
#
#
#
#
# ##
#
#
#
#
#
#
# #
# ######## ## ## # # # ##### #### ### ##
#
#
### #
#
##
#
# ## # ####
#
########## ## ####
#####
## ##
##
#
# ######## # ## #
#
##
## ##
### ###
# #
#
##
#
## #
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### #
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
######## ######
### # ##
##
## ## # ##
# # # # # # #
###### #
# ## #
# ## #
# ## #
# ## #
# ## #
# ## #
# ## #
#####
# ## #
##
# ## #
# ## ##
## ## #
# ## #
# ## #
# ## #
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ## #
# #
# #
###
###
###
#
#
#
# ####
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
# # ## ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
######
# ## # #### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ## # #
#
#
#
#
#
#
#
#
#
#
# # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
##
#
#
#######
# #
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### ###
######### #########
######### #########
######### #########
#### ###
#
#
####
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#### #
#
#
#
# #
#
#
#
#
#
#
##
#
#
#
#
#
#
#
##
#
#
# ## #
# ######
## # ## # ##
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###### #
#
#
#
#
#
#
#
#
#
#
#
#
# # # ## # # # # # # # # # # # # # #
# ## #
# #
# ## #
# # ##
### ###### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## # # # # #
#
#
#
#
#
#
#
#
#
#
#
# # # ## # # #
# # ## # #
# ####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
## # #
#
#
#
# #
#
#
# # # # #
# #
#
# #
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#### ####
#
#
#
# ##
#
#
## #
#
##
#
#
#
#
# # ## # # #
### ## # ## # #
#
#
#
#
#
#
#
#
# ###
# #
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
##
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #######
#
#
#
#
#
# ####
# # #
#
#
#
#
## ## ##
#
# # ##
#
#
#
# #
# ## #
# # # #
# #
#
#
## # # # ## ##
#
#
#
#
#
#
#
#
#
#
# ###
#
##
#
#
#
#
#
#
#
#
#
#
#
## # ##
#
#
#
#
#
#
### ### #
#
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
### ###
######
#
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
# #######
###### ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###### ######
#######
#
#
#
#
######
### ###
#
###
#
##
#
#
#
###### ######
#
#
#
# ## #
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
# # ####
#### ####
###
#
#
#
#### #
#
#
##### #####
#####
##### #####
#
#
#
#
#
#
#
#
#
#
#
#
#####
#
#
#
#
#
#
#
##
#
#
#
#
#
#
# ######
#
#
#
#
#
##
### ##
##
#
#
#
##
#
### #
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
# ####
#
###
#####
## ##
#
#
#
###### ######
#### #
#
#
#
##
#
#
#
#
#
##
#
#
##
#
#
####
#
#
### ### ##
#
###
##
#
##
#
##
#
#
#
#
#
# #
#
#
#
#
### #####
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### ###
#
#
#
#
#
#
#
#
#
#
#
#
# # ## # #
#
#
#
#
#
#
#
#
###
### ###
## ##
# # ## # #
# # ## # # ## ##
# # ## # # ### ###
# ## # ### ###
#
#
#
#
#
# #
#
#
#
#
#
# # #
#
######
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
####
#
#
#
# #
#
#
# #
#
#
#
#
#
#
#
#
# # # ####
#
#
#
#
#
#
#
#
# # ##
#
#
#
#
#
#
# #
#
#
#
##
#
#
#
# # #
#
#
#
#
#
#
#
#
#
## ## ##
##
#
#
#
#
#
### ###
# # ## # #
#
#
#
#
#
#
#
#
### ###
### #### ## #
# # ## # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
# ##
##
# # # # ## # # # #
## #
#
# # # # #
# # # # #
# # # # ## # # # #
# # # # #
# # # # ##
# # #
#
#
#
#
#
##
# #
#
# #
#
### # # # #
# # #
#
#
#
#
#
# # ##
#
#
#
#
#
#
### ##
# #
# #
#
## ## # # # # # #####
#
#
#
#
#
#
#
#
#
#
### # # #
#
#
#
#
#
#
#
#
# ## ## # # # ## # # #
# # # ## # # ### ##
### ### # # # ## # # #
### ### # # ## # #
### ### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
# # #
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ## #
##########
#
#
#
#
#
#
#
#
#
#####
#
#####
# ## #
#
#
#
#
#
#
#
#
#
# #
#
# #
# # ## # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
############
#
#
#
#
#
#
#
#
#
#
#
#
### ###
#
### ### ## ##
#
#
#
#
#
#
#
#
#
#
#
######
# #
#
#
#
#
#
##
######
#
#
### ####
###
# # ## # ####
#
#
#
#
#
##
#
#
#
#
# ### #
#
#
# #
#
#
#
#
#
#
#
# # # ## # # #
# # ## # ### ##
## ##
# #
#
#
#
####
#
#
# # # #
#
#
#
#
#
### #
### ### #
### ## #####
#
#### ####
#
#
#
#
#
#
#
###
###
#
#
#
# # # # # # #
#
#
# # # # # ## # # #
#
# # #
#
#
#
#
#
#
# ## # #
#
#
#
#
#
#
#
#
#
# # ## # #
# # ## # #
#
#
#
#
#
#
#
#
#
#
#
#
#
####
###### ###
#
#
#
#
#
##
#
#
## ##
# ## #
#
# # #
#########
#
#
#
##
#
##
#
# # # # # #
#
#
#
#
#
#
#
#
#
#
# #### ####
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## # #
#
#
#
#
# ##
#
#
#
## # # # # # #
#
#
#
# # #
#
#
# # # # #
# # # # #
#
#
#
#
#
#
#
#
#
#
## #
## # #
#
#
#
#
#
## ### ###
###### ###
#
#####
############## ###
### #
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
### #
## ## ##
#
#
#
#
#
#
# #
# # #
###
# ##
#
#
#
#
#
# ###
#
#
#
#
#
#
#
#
#
#
#
###
## ##
#
### #
## ###
#
# # # # # # #
#
#
#
#
#
#
# ###
### ## ## ###
##
## ##
### # # # #
#
#
###
#
#
## #
#######
#
# # #
# ## #
# ##
#
## ##
# ## ## #
#
#
#
# # ## ## ### ## ##
##
## ##
### ###
###
##
#
## # # ## #
### # ## # ##
##
## ##
##
#####
### ###
#
##
# #
## ##
#
#
### # # #
#
#
#
#
#
#
#
#
##
#### ####
#
# #
# # #
#
# # #
#
# #
### ###
##
# # ## ## ##
# # #####
# #
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
## ##
#
#
# ##
#
##
##
##
##
# # ## # #
# # # ## # # #
## ## # ## #
## ##
#
#
#
#
#
#
#
#
#
###
##
#
#
#
#
#
#
#
#
#
#
## ##
####
### ##
##
## # ##
#
#
#
#
#
#
#
#
#
#
##
#
#
#
##
#####
#
#
#
#
#
#
#
#
#
#
#
#
########## # # # # # # # #
# #
#
#
#
#
#
#
#
#
#
#
#
#
########
##
#
##
#
#
#
#
#
#
#
#
#
## # ## # #
# # ## # #
#
#
##
## #
#
#
##### #
###
# ## #
#
#
#
#
#
#
#
#
## #
#
#
##
##
###
##
# ## #
#
#
#
# # ## # #
# # ## # #
### ###
#
# ### # # #
#
#
#
#
# ##
### ### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ## #
#
#
#
####
## ##
# #
##
##
#####
###
## ###
#
#
#
#
# #
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
!P!P
!P
!P
!P
!P !P
!P
!P
!P
S Western Ave
la Salle Ave
Eriel Ave
W 148th St
W 148th Pl
W 147th St
Parron Ave
Van Buren Ave
W 141st St
S Eriel Ave
Estrella Ave
S Ainsworth St
S Harvard Blvd
148th St
Casimir Ave
Brighton Ave
W 145th St
Atkinson Ave
Marigold Ave
W 146th Pl
SPatronellaAve
W 131st St
CatalinaAve
Cimarron Ave
W 129th St
W 133rd St
141st Pl
Wadshan Aly
W 156th St
S Faysmith AveS Ermanita Ave
S Denver Ave
W 154th Pl
Roxton Ave
S Manhattan Pl
129th St
147th St
W 149th St
Ruthelen Ave
S Saint Andrews Pl
Casimir AveWilkie AveArdath Ave
S Lemoli Ave
155th St
S Orchard Ave
Arcturus Ave
Daphne Ave
Dublin Ave Spinning Ave
W 155th St
S Menlo Ave
W 152nd St
W 133rd St
W 134th St
W 132nd St
W 147th St
145th St
Wadkins Ave
Purche Ave
Wilton Pl
W 149th St
W 139th St
132nd St
W 134th Pl
S Saint Andrews Pl
Chadron Ave
Raymond Ave
W 153rd St
W 134th St
W 130th St
W 146th St
Cerise Ave
Denker Ave
Berendo Ave
Marine Ave
Halldale Ave
Gramercy Pl
W 154th St
W 132nd St
Lemoli Ave
S Hoover St
W el Segundo Blvd
W 144th St
SVermontAve
W el Segundo Blvd
W Redondo Beach Blvd
Yukon Ave
Marine Ave
W 139th St
S Budlong Ave
Van Ness Ave
Crenshaw Blvd
S Figueroa St
S Normandie Ave
Harbor Frwy & Transit Way
Harbor Fwy
W 135th St
W Rosecrans Ave
Dominguez Channel
36''
15''
33''
60''
18''
15''
48''
42''
36''
48''
21''
54''
30'' 36''
60''
18''
30''
8''
21''
36''
18''
36''
43''
36''
30''
Last Revised: March 13, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 1,000500
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure B.2 Gardena Storm Street Flows Direction with Existing System Drains
CITY OF GARDENA
Legend
!P Outfall
Catch Basin
# Street Flow Direction
# City Owned Storm
Drains
# County Owned Storm
Drains
Waterways
Gardena City Boundary
County Parcels
110
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ##
# #######
# # # # # #
#
#############
# # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
##
#
#
#
#
#
######
##############
####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # ## # # # # # #
#####
# # # # # # # #
#######
######
# # # # # # ## # # # # #
##
##
# # # # # # # # # #
#####
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
# #
#
##
#
##
#
#
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
#
##
#
# ###
###
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
###
#
#
## ####
# # #
#
##
#
#
#
#
# ##
#
#
##
#
#
#
###
#
#
####
#
###
# # # #
#
#
#
#
#
#
# # #
#
###
#
#
#
##
###
#
#
#
#
#
#
#
#
#
#
# #
#
#
##
#
## # #
## #
##
# ##
#
# #
#
#
#
##
#
#
#
# ###
#
#### # ##
####
## # ## ## #
#
#
#
#
#
# #
#
#
# ## ##
##
#
# ######## # ## # # # ##
#
# ## ## ### # # #
#
# #
#
#
## #
#
#
##
#
#
#
##
##
# #
###
# # #
#
#
#
##
#
#
###
#
##
#
#
#
# # # # # # ##
#
# # # # # #
#
##
##
# ##
###########
####### # ## #
# #
#
#
#
#
# #
# #
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # #
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
## ## ##
#
#
#
# #
#
#
#
# # # # # # # # #
#
#
#
#
#
#
##
#
#
#
# #
#
# # ##
#
#
#
#
#
# #
# ## #
# # # #
# #
#
#
#
#
#
# # # #
# # # #
#
#
#
# # # #
# # ## # #
#
# # #
## #
#
#
#
#
#
#
#
# #
#
#
# ##
#
#
#
# # #
# # # # ##
##
#
##
# #
#
#
#
#
##
# #
#
#
#
###
#
#
#
#
#
#
#
#
#
###
####
#
#
#
#
#
#
#
#
#
#
#
#
#
# ##
##############
#
#
#
#
#
#
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
# #
# ##
##
##
#
#
#
#
#
#
#
#
#
#
#
## #
##
### ##
#
#
#
#
# #
##
##
#
#
#
##
#
#
#
# # #
#
#
#
##
##
# #####
#
#
#
#
#
#
#
#
####
###
##
#
#
#
#
#
# #
#
##
#
#
# # # ### #### # # #
#
# #
#
#
#
#
#
#
#
# # #
#
#
#
###
#
#
#
#
#
#
# # ## # # #
#
#
#
#
#
# # # ##
## ##
## #
#
#
#
##
#
#
#
#
#
#
#
#
#
##
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # ## #
#
#
#
#
#
#
#
#
#
#
#
#
######
##
#
#
# #### # # # ## # # # # #
#
#
# ## # # ## # #
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
####
#
#
###
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
# # #
## # ## # #
# # #
##
#
# # #
#
#
# #
#
#
##
#
#
#
#
##
#
#
#
#
#
#
# # # ##
#
#
# #
#
#
#
# ##
#
#
# # ## # # # # # #
###
#
#
#
#
#
# ## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
# # # #
#
#
#
##
#
#
#
#
#
#
# #
#
#
#
#
#
#
# ## # # #
#
#
#
#
#
##
#####
# #
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
# ###
# # #
#
#
#
#
#
#### # #
# # # # ## # # # #
#
#
#
#
#
#
#
#
#
#### ##### # #
### ### #
#
#
#
#
#
#
#
#
# ### # #
# #
#
#
#
####
##
#### # # ## #
#
#
#
#
#
#
#
# # # ## # # #
# # #
####
# ######### ####
#
#
####### # # # # #
#
#
#
#
#
#
#
#
#
#
#
# #
# # #
######
#
#
#
#
#
#
#
#
#
#
#
# ###
#
#
#
#
#
#
#### ####
## ###
######
# ###### ######
######
#
#
#
### ###
#
#
#
#
# ##
#
#
#
#
#
#
#
#
#
## # #
#
# #
#
# ##
#
#
#
#
#
#
# #
### # #
# ###
#
#
#
#
######## # #
#
#
# #
# ## #
# # # #
#
#
#
# ###
# ###
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
### # # # # #
# # # # #
# # # # ## #
#
#
#
#
#
# # # # # ## # # # #
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
# #
# #
#
#
#
#
# # #
##
#
#
#
#####
#
# ## #
#
#
# #
# # #
##
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
# ##
#
#
#####
#
#
#
#
#
#
#
# ##
#
#
#
#
#
#
#
#
# #
#
#
#
#
##
# #
## ##
# #
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
# ## ##
#
#
#
#
# # #
# # # #
# # # ## # # # # #
#
#
## # # ## # # #
# # # #
#
#
##
#
#
#
#
#
# ##
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
### ###
##
#####
#
#
#
#
##
#
#
#
#
#
#
# #
##
##
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
# # #
#####
##
#
## # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
# # # # # ##
#
#
# # # #
#### #
#
#
#
# #
#
#
#
#
#
#
###
#
#
#
#
# # #
#
#
##
# ## #
##
#
# ##
#
#
#
#
## ###
#
#
#
#
#
#
# ####
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ###
#
##
# #
###### ###### #
#
# # # # # # # #
#
# # # # # # # # # # #
#
# # # # # #
##
#
# # # # # #
##
# # # # # #
#
#
#
#
#
#
#
# # # #
#
#
#
# # # # #
## # # #
# # # # # # #
#
#
#
#
#
#
#
#
#
# # # # ## # #
#
#
# # # ## # # #
##
##
#
# # # # ## # # # #
### ###
### ###
#
#
### # # # # ## # # # #####
# # # # # ## # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
# # # # # ## # # # # #
# # # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ##
#
#
#
#
# # # # # #
#
#
#
#
##
#
#
# # # # # # # # # # # # # #
# # # # # # ## # # # # # #
## ## ## ##
##
# # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
##
#
##
#
##
# #
##
#
#
###
#
#
#
#
#
#
#
##
#
#
##
##
##
##
#
#
#
#
#
#
#
#
##
## ##
###
#
#
#
#
# # # # # # #
#
#####
### ###
## ##
##
## ##
##
#
#
#
# ##
# ## #
##
# ## # ##
# # #
# # #
### #
######
# ## #
# # # #
### ###
##
# #
## ##
# #
##
#
## ###
#
#
#
#
#
# #
#
#
##### #
#
#
#
#
#
#
#
##
# #
# # #
# ###
###
##
##
##
# # #
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
# # # # ## # # # #
# # # #
# # # # # # # # # #
#
# # # # # # # # # # # #
#
#
##
#
#
# # ## # #
#### ###
#
#
#
#
# # # ###
#
#
#
#### # ####
#
#
#
#
#
# # # #
# #
## ###
#
#
#
#
##
#
#
## ### ## # #
##### #
# # ## ## #
#
# ##
#
# ### ##
## ## ####
#
#
#
#
##
## ##### ###### ###
#
#
##
#
## ###
#
#
#
#
#
#
##
# # ## #
##
#
#
##
##
#
#
#
#
#
#
#
#
# # ##
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
######### # # #
# # # # ########
#
#
#
#
#
#
# #
## ###
#
#### ###
##
##
## #
!P
!P !P
!P
!P
S Vermont Ave
Citrine Ct
State Rte 91
S Western Ave
SParkLn
W 160th St
Felder St
RuthelenAveSpinning Ave
Purche Ave
Saint Andrews Pl
S Lemoli Ave
Hobart Blvd
W 167th St
166th St
Illinois Ct
W
184thSt
W 160th St
W 173rd St
W 159th St
W 177th St
Falda Ave
Brighton Ave
179th St
la Salle Ave
Halldale Ave
W 165th St
180th St
W 169th Pl
181st St W 181st St Manhattan Pl
S Harvard Blvd
169th Pl
Delia Ave
Descanso Way
W 165th Pl
W 157th St
W 169th St
S Budlong Ave
Merit Ave
W 180th St
Wilton Pl
Evelyn Ave
ArcturusAve
Haas Ave
Estrella Ave
W 168th St
S Saint Andrews Pl
Faysmith Ave
W 157th St
San Diego Fwy
W 166th St
Wilkie Ave
Artesia Blvd
S Denver Ave
Manhattan Beach Blvd
Atkinson Ave
W182ndSt
Redondo Beach Blvd
M
arigoldAve
W 167th St
S Orchard Ave
Glenburn Ave
Elgar Ave
Ardath Ave
W 158th St
Amethyst Cir
Casimir Ave
Magnolia Ave
W 163rd St
W 161st St
W Cassidy St
W Alondra Blvd
W 170th St
178th St
177th StW 177th St
S Menlo Ave
Dalton Ave
S Budlong Ave
Gramercy Pl Denker Ave
W 164th St
W Redondo Beach Blvd
Manhattan Pl
Electric St
W 178th St
S New Hampshire Ave
W 164th St
Berendo Ave170th St
S Hoover St
S Ainsworth St
W 156th St
180th Pl
W Gardena Blvd
W 168th St
W 162nd St
171st St
W 166th St
Van Ness AveCrenshaw Blvd
Harbor Frwy & Transit Way
Harbor Fwy
S Normandie Ave
W 182nd St
W Artesia Blvd
Dominguez Channel
24''
15''
15''
60''
30''
18''
18''
24''
51''
54''
36''
39''
24''
36'' 33''
48''
40''
24''
21''
36''
18''
30''
48''
81''
18''
36''
18''
18''
36''
15''
24''
36'' 30''
42''
36''
8''
30''
42''
42''
66''
60''
60'' 48''
24''
30''
Last Revised: March 13, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ O
0 1,000500
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Figure B.3 Gardena Storm Street Flows Direction with Existing System Drains
CITY OF GARDENA
Legend
!P Outfall
Catch Basin
# Street Flow Direction
# City Owned Storm
Drains
# County Owned Storm
Drains
Waterways
Gardena City Boundary
County Parcels
110
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # # # # # ####
#
###### #
######
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## ##
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##########
################ ####### #
###### #
#
#
# # ### ### # # #####
######### # #
# # ## # #
# # ## # #
# # ## # #
# # ## # #
# # ## # #
# # ## # #
############
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
######
#
#
#
#
#
#
#
#
#
#
##
####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
#####
#
#
#
#
#
#
## #
##### # #
#
#
#
#
# ## #
####
##########
######
####
######
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
W 126th St
W 133rd St
131st St
132nd Pl
W 130th St
129th Pl
Eriel Ave
Daphne Ave
Lemoli Ave
W
eberW
ay
CeriseAve
W 131st St
Chadron Ave Wilkie Ave
Daphne Ave
Chadron Ave Simms AveCerise Ave
Spinning Ave
Arcturus Ave
Casimir AveWilkie AveArdath Ave
W 133rd St
W 134th St
W 132nd St
129th St
132nd St
Purche Ave
Crenshaw Blvd
Crenshaw BlvdW el Segundo Blvd W el Segundo Blvd
Dominguez Channel
32''
21''
43''
30''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page A1
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ########
# # # # # # # # # # # # # # # # # # # #
# # # # # # # #
# # # # # # # # # # # # # # # # # ## # # # # # # # # # # # # # # # # # #
#
#
#
# ## #
#
# # # # ## ##
#
#
#
#
#
#
#
## #
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## ######## #
###### #
#
#
#
##
#####
## #######
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # ## # # # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
#
#
#
###
###########
## # ## # # # # #
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
############
#
## #
#
#
#
#
#
#
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
######
######
######
######
######
######
###
# # # #
########
# # #
##
##
### ## # #
#
#
##### ##
##### # #
# # # # # #
###
# #
#### #####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
############
# # ###
#
##
129th St
Saint Andrews Way
PineHurst Ln
W 126th St
W el Segundo Blvd
W 127th St
W 126th St
W 130th St
W 132nd St
W 134th St
Daphne Ave
129th St
Cypress Knoll Ln
Saint Augusta Ln
Daleside Ave
S Van Ness Ave
Daphne Ave
S Western Ave
HaasAve
129th St
Cimarron Ave
132nd StS Manhattan PlRuthelen Ave
Gramercy Pl
S Saint Andrews PlSpinning Ave 132nd St
S Western Ave
Van Ness Ave Wilton PlPurche Ave
W el Segundo Blvd W el Segundo Blvd
36''
15'' 30''
24''
21''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page A2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ## # # #
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
# # # # # # # # # # #
#
# #
################### ###################
###################
###################
################### ###################
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### ### # #
# #
#
#
#
#
#
#
#
#
#
#
#
#
#####
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #####
#####
############
#
#
#
#
#
#
#
#
#
#
#
###########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
##
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
########### ###########
###########
###########
###########
#
#
#
#
#
#
#
#
#
#
##
############# #####
#
#
#
#
#
#
#
#
##
###### # # # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
W 129th St
W 133rd St
CatalinaAve
S Harvard BlvdS Western Ave S Denker Ave S Halldale Ave Raymond Ave Halldale Ave
S Western Ave
S Normandie Ave
S Normandie Ave
S Budlong Ave
S Budlong Ave
W 134th St W 134th St
W 130th St W 130th St
W el Segundo Blvd W el Segundo Blvd
W 127th St W 127th St
W 126th St W 126th St
W 132nd St W 132nd St
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page A3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # # # # ## # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
# # # # # #
#####
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # ##########
#
#
#
#
#
############
# ###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # ########
######## #######
#######
#
#
#
#
#
#
######## #
#
#
#
#
#
#####
#####
#####
#####
#####
###
#
#
#
#
#
#
#
#
#
###
#
#
#
#
## #
#
#
#
#
#
#
#
#
####### # # # # # #
##
#
#
#
#
#
#
##
#
S Catalina AveKansas Ave
W 129th St
W 134th St
W 130th St
W el Segundo Blvd
W Laconia Blvd
W 127th St
SAinsworthSt
Estrella Ave
W 130th St
W 125th St
W 131st St
Berendo Ave
W 126th St
W 132nd St
W 127th St
W 131st St
CatalinaAve
W 130th St
W 129th St
W 133rd St
W 133rd St
W 126th St
W 132nd St
S Menlo Ave
Berendo Ave
Laconia Blvd
S Budlong Ave
S Budlong Ave
S Vermont Ave
S Vermont Ave
SHooverSt
SHooverSt
HarborFrwy&
TransitW
ay
Harbor Fwy
HarborFwy
W el Segundo Blvd W el Segundo Blvd
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page A4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # #
####
#
# ######
#
###
# # #
#
#
#
#
#
#
#
#
#
#
# #
####
#
# # ## ##### ########
##
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## ##
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
# # ### ### # # #####
# # # # # # # # # # # # # #
# # #
# # ## # #
# # ## # #
# # ## # #
# # ## # # #
# # ## # #
# ## #
# # ## # #
# # ## # # #
#
#
#
# # ## # #
# # ## # #
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#######
#
#
#########
##
##
#
# # # # # # #
#
# # # # # # # # #### ### #####
#####
#
#
#
#
#
#
## #
##### # #
#
#
#
#
#
#
#
#
#
#
#
#
#
# ## # # #
#
# #
#
#
#
#
################ # # # # # #
#
#
#
#
# ## #
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
Daphne Ave
W 138th St
136th St
139th Pl
W 139th St
W 137th St
135th Pl
W 133rd St
W 134th St
132nd Pl
Galli St
139th St
Eriel Ave
Casimir Ave
Wilkie AveArdath Ave
Arcturus Ave Spinning AvePurche Ave
Arcturus Ave
Spinning AveDaphne Ave
Ardath Ave
Wilkie AveCasim
irAve
Purche AveChadron Ave
W 139th St
W 133rd St
W 134th Pl
W 134th St
W 139th St
W 132nd St
132nd St
W 134th Pl
Lemoli Ave
Lemoli Ave
Crenshaw Blvd
Crenshaw Blvd
W 135th St W 135th St
Dominguez Channel
24''48''
36'' 36''
21''
36''
36''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page B1
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ############
# #
#
# # # # # # # # # # # # # # #
# # # # # # ##
# # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ## # # # # # # #
# # # # # # # # # # # # # ## # # # # # # # # # # # # #
# # # # # # # # # # # # # # #
#
#
#######
####
#
#
#
#
#
#
#### ####### #### ### ## ###########
# # # # #
#
#
#
##
#
#
# ##
#
#
#
#
#
#
#
#
#
#
#
#
# ## ### ##### #
# #
# # ## ## ##
## #
#
## #
###
#
### #
#
#
#
#
#
#
#
#
#
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#####
# # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
##
#
#
# #
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ## #
#
#
#
#
#
#
#
#
#
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#######
#######
######
######
######
######
########
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # # # # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## # #
# # #
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
#
#
#
# # #
# # #
# # ##
#
#####
## # # ##### # # # # ## #
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
######## #######
###
# # # #
##
####
#
#
#
#
#
#
#
#
#
#
#
### # #
##
#
#
#
#
#
#
#
#
#
####
#######
##### ##
#####
######
#
#
# # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
# # # # #
#####
### # # # ### ###
##### # #
# # # # # #
#
#### ####
# #
# #####
#####
######
#
#
#
#
#
#
#
#
#
#
#
#
##########
# # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
# # #
Daphne Ave
Haas Ave
Harvard Pl
W 137th St
St Andrews Pl
W 132nd St
W 134th St
S Western Ave
S Western Ave
W 134th Pl
Spinning AvePurche Ave
S Manhattan PlGramercy Pl
S Saint Andrews Pl
Ruthelen Ave
Gramercy Pl
Cimarron Ave
Wilton Pl
132nd St
Spinning AveDaphne AvePurche Ave
W 134th Pl
132nd St
Van Ness Ave
Van Ness Ave
W 139th St W 139th St
W 135th St W 135th St
36''
24''
18''
21''
15''
30''
30''
24''
24'' 24''
24''
30'' 36''
21''
36''48''
42''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page B2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
# # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ## # # #
#
#
#
# # # # # # # # # # # #
# # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # ## # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # #
# #
#
#
#
## # #
#
##
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###################
###################
################### ###################
########
########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##### ###
#########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
#####
#
#
#
#
#
#
#
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
#####
#
###########
#
#
#
# # #
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
############
###
#
#
#
#
# # # ############
###########
###########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##########
#
#
#
#
#
#
##
#
#
#
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
#
# ############
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
##
## #
#
#
#
#
#
#
##
##
#
#
#
#
#
#
#
#
#
#
#
#
# #
############
######## ##
#
##
#
#
#
#
#
#
#
#
#
####
#
#
#
###
#
#
#
#
#
#
#
#
######
##
####
#
#
#
#
#
#
#
#### ##### #######
#################
######### #####
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
####
### ###
#
#
###########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
###
Teton St
Brighton AveHalldale Ave W 140th St
W 133rd St
Harvard Pl
Van Buren Ave
Raymond AveMariposa Ave
S Western Ave
S Western Ave
Alma Ave
S Catalina Ave
W 137th St
Halldale Ave
S Normandie Ave
S Normandie Ave
S Budlong Ave
S Budlong AveW 134th St W 134th St
W 139th St W 139th St
W 132nd St W 132nd St
W 135th St W 135th St24''
18''
36''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page B3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # #
# # # # # # # # # # # # ## # # #
#
#
# # # # # #
# # # # # # # # # # # # # # # # # #
###
#
#
## # # # # #
# ######
#####
#
#
#
# # # ##########
#
#
#
#
#
############
# ###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
############
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
######
############
###############
#
#
#
#
#
#
#
#
#
# # # # ########
######
#
#
#
#####
#####
#####
###
# ####
######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
#####
## #
#
#
#
#
#
#
#
#
#
## #
#
#
#
#
##### #
#
#
#
#
##
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
######
# ##
#
##
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
#
#
## #
#
#
#
#
#
#######
#
#
#
#####
#
######
#
#
#
#
#
#
#
####
#
#
#
###
#
#
#
##
#
#
#
#
#
#
####
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
Menlo Ave
Emerald Ln W 140th StMoonstone Way
W 134th St
E Agate Ct
Opal Way
Teton St
W 138th St
W 139th St
Van Buren Ave
W 137th Pl
W 136th St
W 137th St
Kansas Ave
W 139th St
S Menlo Ave
W 134th Pl
S Catalina Ave
Berendo Ave W 138th St
S Catalina Ave
New Hampshire Ave
S Menlo Ave
Berendo Ave
Estrella Ave
S Ainsworth St
W 132nd St
W 134th St
W 133rd St
W 133rd St
W 132nd St
Harbor Frwy & Transit Way
Harbor Fwy
Harbor Fwy
S Hoover St
S Hoover St
S Vermont Ave
S Vermont Ave
S Budlong Ave
S Budlong Ave
W 135th St W 135th St
15''18''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page B4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
#
# # # # # # # # # # # # # # # # # # # # # # #
##
# # # # # # # # # # # # # # # # # # # # # #
########
# ###### ###
###
####
#
# # ## ##### ########
# # #
# # ## # # #
#
#
#
# # ## # #
# # ## # #
# # ## # #
# # ## # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
# # #
# # # # #
# # #
######
######
######
#
#
#
##
# # ###
###
#
#
#
#
#
#
#
#
#
#
#
#######
#
#
#
#######
# # # # # #
#########
##
##
# # # # # # # #
# # # # # # #
# # # # # # # # # # # # # # # # #
# # # ## # # #
# # # #
# # ## # #
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # ## # # # # # #
# # # # # # ## # # # # # #
#
#
#
#
#
#
#
#
#
#
# # # # #
#
#
#
#
#
# # # # # # # # # # # #
#
#
#
#
#
#
#
# ## # # #
## ###
#######
#
#
# # # # # #
#
# # # ## # # #
#
#
###
#
#
#
###
####
#
#
####
####
#
#
#
#
#
#
#
# # # ## # # ## # # ##
## # #
## # # ## # #
## #
### ##
# #
#
#
#
#
#
#
##
###
## ###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
Garden Ln
Arbor Ln
Cottage Ln
Wilkie Ave
W 145th St
W 138th St
W 141st St
139th Pl
W 139th St
W 140th St
W 141st St
Purche AveRoxton Ave Daphne AveDublin Ave
139th St
Spinning Ave
W 143rd Pl
W 145th St
W 146th St
Lemoli Way
W
adkinsAve
Casimir Ave
Wilkie Ave
Ardath Ave
Arcturus Ave
Daphne Ave
Spinning Ave
141st Pl
W 139th StW 139th St
Purche Ave
W 144th St
Chadron Ave
Crenshaw Blvd
Crenshaw Blvd
Lemoli Ave
Lemoli Ave
W Rosecrans Ave W Rosecrans AveDominguez Channel
24''48''
30''
24''
36''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page C1
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ## # # # # # # #
## # # # # # # #
# # # # #
############
############
############
####
#
#
#
#
##
#
#
#
#
#
#
#
#
#### ####### #### ### ## ###########
#
# ## ### ##### #
# #
# # ## ## ##
## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ###
###
#
#
#
#
#
#
#
#
########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
#
#
#
# # #
# # ##
#
#####
## # # ##### # # # # ## #
#
#
#
#
#
#
##
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # ###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### #
#
#
#
#
#
########
# # # # # # # # # # # # # # #
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
######
########
#
#
#
#
#
#
#
#
#
#
#
#
###### ######
##
#
#
#
#
#
#
#
# # # # # ## # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
######
######
######
# # # # # ## # # # # #
#
#
#
#
#
#
#
#
# # # # # # # # # ## # # # # # # # # #
# # # # # # # # # #
# # # # # # # # # #
# # # # # # # # # #
# # # # # # # # # #
# # # # # # # # # ##
#
# # # # # #
#
#
#
#
#
#
#
#
#
##
##
#
#
# #
#
# # #
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#### ####
# # ## # #
# # # ## # # #### ###
##### ##### # ## #
# # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### # ##
#
#
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # #
#####
#
## ###
##
#
# ## # # ##
#
## # # ## # #
## #
#### ###
######
######
#
# # # # #
#
#
#
#####
#####
########
#####
#####
#
#
#
#
#
# # # # # #
# # # # # #
W 141st St
W 141st St
Harvard Pl
Hobart Blvd
Purche AveDaphne Ave
Gramercy PlCimarron Ave
Spinning Ave
Haas Ave W 146th St
W 145th St
SSaintAndrewsPl
Gramercy Pl
Daphne Ave
Spinning Ave
Purche Ave
145th St
W 146th St
S Western Ave
S Western Ave
Van Ness Ave
Van Ness Ave
W Rosecrans Ave W Rosecrans Ave
W 139th St W 139th St
W 144th St W 144th St
24'' 21''
42''
30'' 36''36''48''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page C2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
# # # # # # # # # # # # ## # # # # # # # # # # # # # # # # # # # # # # # # # # ## # # # # # # # # # # #
############
# # #
# # #
# #
# # # # # # # # # # # # # # # #
##########
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
## # #
#
# # # #
#
#
#
#
#
#
#
#
## # # # #
#
#
#
#
## #
###
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##### ###
#########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
##
###
##
###
##
#
#
#
#
############
############
##########
#
#
#
#
#
#
#
#
#
#
# ############
#
#
#
#
#
#
#
#
##
##
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ######
#
#
#####
#
#
############
## #
#
#
#
#
#
#
#
#
############ ############
######## ##
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
##
##### # # # # # # #
#
#
#
#
#
#
#
#
#
#
#### ####
# # # # # # # ## # # # # # # #
# # # # # # # # ## # # # # # # # #### ###
##### ##### # # # # # # ## # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##########
#
##########
# # ## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####################
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###### ######
###
####### #######
#####
####
###
###
# # ## # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
############ ######
##
##
#################
######### #####
###### ###
##### ##### # ## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
# # # #
# # # # # #
#
#
#
# # # #
#
#
# # # #
#####
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # ## # # # # #
# # # # # ## # # # # #
###
###
Deanna Ct
Kiwi Ln
Alma Ave
140th Pl
Raymond Ave
Plum Ln
Mariposa Ave
W 141st St
Harvard Pl
144th Pl
Kingsley Dr
Mariposa Ave
Hobart Blvd
W 141st Pl
Cottage Pl
W 145th Pl
Strawberry Ln
141st Pl
W 141st St
W 140th St
Raymond AveDenker Ave
W 141st St
Brighton Ave
W 145th St
145th St
W 144th St
Halldale Ave
W 146th St W 146th St
S Normandie Ave
S Normandie Ave
S Western Ave
S Budlong Ave
S Budlong Ave
W 139th St W 139th St
W Rosecrans Ave W Rosecrans Ave
15''
21''
33''
18''
30''
36''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page C3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # # # # # # # # # # # # # # #
# # # # # # # # # # ##
# ##
#
#
#
#
#
#
#
#
#
#
#
#
## # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
######
#
#
#########
#
#
#
#
#
#
#
#
############
#######
#######
#
#
#####
#
#
#####
##
#
#
#
#
######
######
###
######
#
#
#
#
#
#
#
#
#####
#####
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### ###
######
## #
#
#
#
#
#
#
#
#
###### ######
# ##
#
##
#
#
#
#
# #
#
####
#
###
######
###
####
####
#
#
#
#
#
#
#
#
#
#
#
######
##
########### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ## # #
# # #
# # #
#####
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
Deanna Ct
Topaz Ln
W 141st St
147th StEstrella Ave
W 145th Pl
144th Pl
W 145th St
Amber Pl
SM
enloAve
Emerald Ln
W 140th St
E Agate Ct
140th Pl
Moonstone Way
Cottage Pl
W 141st Pl
W 139th St
W 141st St
S Catalina Ave
W 146th St
Berendo Ave
W 142nd St
W 141st St
S Ainsworth St
W 140th St
W 137th Pl
W 139th St
Opal Way
W 138th St
W 144th St
S Ainsworth St
S Orchard Ave
W 145th St
S Denver AveBerendo Ave
147th St W 147th St
W 146th St
S Hoover St
S Menlo Ave
S Vermont Ave
Harbor Frwy & Transit Way
Harbor Fwy
Harbor Fwy
S Budlong Ave
S Budlong Ave
S Vermont Ave
W Rosecrans Ave W Rosecrans Ave
15''
21''
15''18''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page C4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ##
# # # # # # # # # # # # # # # # # # # # # #
#####################
######################
# # # ## # # #
# # # #
# # ## # #
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
# # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # ## # # # # # #
# # # # # # ## # # # # # #
#
#
########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
# # # # # # # # # #
# # #
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
########
#########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ## # #
#
#
#
#
# ##
#
#
#
#
#
#
# # # # # # #
# # # # # # # # #
#####
### # # # #
# # # #
#
#
#
#
#
#
#
#
#####
# # #
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
######
#
#
#
#
#
#
#
#
#
#
#
#
# #
# # # # #
#
#
#
#
###
# # # # # # # #
#
#
#
#
# # # # # # # # # # # # #
#
#
###
####
#
#
####
####
#
#
#
#
#
#
#
# # # ## # # ## # # ##
## # #
## # # ## # #
## #
### ##
## ###
## ##
#
#
#### # # # # ## # #
# #
##
###
## ###
#
#
#
#
#
#
#
#
# # ####
### ### ###
Garden Ln
Arbor Ln
Cottage Ln
Wilkie Ave
W 145th St
Spinning AveDaphne AvePurche AveArcturus AveWilkie AveArdath AveChanera AveS Faysmith Ave Chadron Ave
150th St
Casimir AveAtkinson AveS Eriel Ave
SLemoliAve
W 145th St
W 146th St
Lemoli Ave
W 152nd Pl
Lemoli Ave
W 149th St
Miller Ave
Sutro Ave
Marigold Ave
Daphne Ave
Wadshan Aly
W 152nd St
Chadron Ave
W 147th St
Purche Ave
Roxton Ave
Dublin Ave Spinning Ave
W 152nd St
Wadkins Ave
147th St 147th St
W 144th St
Crenshaw Blvd
Crenshaw Blvd
Marine Ave Marine Ave
Dominguez Channel
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page D1
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # #
###########
##########
###############
##########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # #
# # #
#
#
#
#
#
# # # # # #
# #
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
# # # # # # # # # #
#
#
#
#
#
#
#####
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #############
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
######
########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###### ######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # ## # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
######
######
#####
#####
# # # # # ## # # # # #
# # # # # ## # # # # # ##### #####
# # # # # #
# # # # # #
#####
#####
# # ## # # ##### #####
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
# # # # #
# #
#############
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
########
#
#
#
#
#
# # #
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
# ###### ######
###### ####### # # ## # # #
# # # # # #
# # # # # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # ## # # # # # # # # #
#
##
#
##
# # # # # # # # # #
# # # # # # # # # #
# # # # # # # # # ## # # # # # # # # #
# # # # # # # # # #
# # # # # # # # # ##
#
# # # # # #
#
#
#
#
#
#
##
##
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#### ####
# # ## # #
# # # ## # # #### ###
##### ##### # ## #
###### ######
##
###### ###### #
#
#
#
#
#
#
#
# # # # # #
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
####
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
# # # # #
# # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
# ## # # ##
#
## # # ## # #
## #
#### ###
#### ## # # #
#
#
#
# # ##
##
##
#
#
##
##
# # # # # ## # # # # #
##
# #
# #
###
## ## ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## # #
#
#
#
#
# # #
# # #
# #
# # #
# # #
# #
# #
# # # ## # # #
# # # # # #
# # # # # #
# # # # #
# # # # #
######
######
#
#
#
#
W 150th St
W 152nd St
Parron AveWilton PlSpinning AveDaphne AvePurche Ave Haas Ave S St Andrews Pl
W Marine Ave
W 149th St
Cimarron Ave
W 150th St
147th St
W 149th St
W 152nd St
Haas Ave S Saint Andrews Pl
W 152nd St
147th St
W 150th St
W 146th St
W 145th St
Parron Ave
W 152nd St
148th St
W 146th Pl
Daphne Ave
147th St
W 149th St
Purche Ave
S Saint Andrews Pl
145th St
W 146th St
W 153rd St
Spinning Ave
Van Ness Ave
Van Ness Ave
Gramercy Pl
Gramercy Pl
S Western Ave
S Western Ave
Marine Ave
W 144th St W 144th St
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page D2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #############
########
#
######################
# # # # # # ###############
#
#
#
#
#
#
#
#
# # # # #
#
#
##
# # # # ###
#
##
# #
##
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
##
##
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#### ####
# # # # # # # ## # # # # # # #
# # # # # # # # ## # # # # # # # #### ###
##### ##### # # # # # # ## # # # # # #
###### ######
# # # # # ## # # # # #
###### ###### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
# # #
# # # # # #
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ## # #
##################
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##########
#
##########
# # # #
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
# # #
# # # # # ## # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###### ######
###
####### #######
#####
####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
# # # # # #####
####
# # # #
#
#
#
#
#
#
#######
#
#
#
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
###### #
######
###### #
#
###### #####
###########
#
#
#
#
#
#
#
####
#####
#
#
#
#
#
#
# # #
# # #
# # ## # #
# # #
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
##### ##### # ## #
#
#
#
# # # #
#
#
# # # #
#####
#####
# #
# #
# # # ### ### ###
# # # ##########
# # # # # ## # # # # #
# # # # # ## # # # # #
### ### # # ## # #
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # ## # # # # #
# # # # # ## # # # # #
### #
#
#
#
#
#
########## #
#######
# # #
# # #
# #
# # #
# # #
Kiwi Ln
W 149th St
W 150th St
147th St
W 152nd St
Plum Ln
Kingsley Dr
144th Pl
148th St
Mariposa Ave
Cottage Pl
W Marine Ave
W 145th Pl
W 149th St
Strawberry Ln
W 150th St
S Kingsley Dr
W 146th St
W 152nd St
la Salle Ave
S Harvard Blvd
Van Buren Ave
W 145th St
145th St
W 144th St
147th St
W 149th St
W 153rd St
W 146th St W 146th St
Halldale Ave
Halldale Ave
Denker Ave
Denker Ave
S Normandie Ave
S Normandie Ave
RaymondAve
Raymond Ave
S Budlong Ave
S Budlong Ave
Marine Ave Marine Ave15''
15''
15''
15''
21''18''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page D3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ###
# # # # # #
#
#
#
#
#
#
#
#
#
#
###
####
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
####
####
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
# # # # # # # # # # # #
# # # # # #
#
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
# # # #
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # ## # # # # #
# # # # # #
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
# # ## # #
# # #
# # #
#####
#####
# #
# #
### ### ######
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
SVermontAve
S Vermont Ave
147th St
147th St
W 145th Pl
144th Pl
148th St
W 145th St
S Menlo Ave
SHooverSt
W 148th Dr
W 146th St
Cottage Pl
W 146th St
W 152nd St
S Menlo Ave
S Orchard Ave
S Hoover St
W 150th St
W 149th St
W 152nd St
W 144th St
S Catalina Ave
Estrella Ave
W 145th St
W 148th Pl
W 148th St
147th St W 147th St
Van Buren Ave
W 146th St
S Denver Ave
Marine Ave
S Orchard Ave
W149thSt
W 149th St
Berendo Ave
Berendo Ave
S Budlong Ave
S Budlong Ave
Harbor Frwy & Transit Way
Harbor Frwy & Transit Way
Harbor Fwy
HarborFwy
15''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page D4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ###
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
##
## # # # ##
#
##
#
#
# # # # ## ## # # #
# # # ##
# ##
#
# ## #
##### ### # # ##
####
#####
## ##
#
#
# # # ## #
# # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
########
#########
#
#
#
#
#
#
#
#
#
#
# # ## #
#
# ##
#
#
#
#
# # # # # # #
# # # # # # # # #
#####
### # # # #
# # # #
#
#
#
#
#
#
#
#
#####
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## ## # # # # #
# #
# # # # ######
# # # # #
#
#
#
#
#
#
#
# #
# # # #
# # ##
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
# # # # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
## #
#
#
#
#
#
#
#
# # # #
#
#
# # # # # ## #
#
#
#
#
#
#
#
#
#
# # # # #
# # # #
# # # #
# # # # # # # #
# # # #
#
#
#
#
#
#
#
#
#
# # # # # # # #
# # # # # # # #
#
#
#
#
#
#
# # # # # # # #
# # # # # #
# # # # # #
# #
# # # # #
# #
# # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
# # # # # # # # # ##
# #
#
##
# # # #
#
# #
## # ##
#
#
#
#
#
#
#
#
##
###
#
#
###
##
####
##
#
#
#
#
#
#
#
#
# #
# #
#
#
#
#
# #
#
#
#
#
#
#
#
#
# # #
## ###
#
#
#### # # # # ## # #
### #
# # # # #
# # # # ####
####
####
####
#####
#
#########
######
######
###
###
###
###
###
###
##
#
#
#
#
# # ####
### ### ###
#####
##### # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
# #
#
Crest Ln
Lemoli Ave Miller Ave Sutro Ave
Dublin Ave
Manhattan Way
W 155th St
S Falda AveOgram Ave
Chadron Ave
Daphne Ave
W 152nd Pl
W 153rd St
Wilkie AveChanera Ave
Ardath Ave
Arcturus Ave
W 154th Pl
S Eriel Ave
AtkinsonAve
Casimir Ave
AtkinsonAve
W 157th St
Marigold Ave
W 152nd St
W 154th St
Manhattan Beach Blvd
155th St
W 157th St
SFaysmithAve
W 152nd St
Spinning Ave
Purche Ave
Manhattan Beach Blvd
W 156th St
S Lemoli Ave
W 154th St W 154th St
Crenshaw Blvd
Crenshaw Blvd
Marine Ave Marine Ave
51''
27'' 48'' 54''
48''60''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page E1
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
#
#
#
# # # # # # # # # # # # # #
#################
#################
#
#
#
#
#
# # # #
#
#
##
## # # # ##
#
###
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
# #
# # # # #
#
# ##
#
# ## #
#####
##
##
#
#
#
#
########## # ## # ## #
# ##
#
#
#
#
#
##
#
#
#
# # # # # # #
# # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#####
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
# # #
#
#
#
#
#
#
# # # #############
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
# # # # #
# #
# # ##
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#######
#
#
#
#
#
#
# # # # # #
# # # # # # # # #
#
#
##
# # # #
#
# #
#
#
#
#
#####
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # #####
#
#
#
#
#
#
#############
#
#
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
########
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## # # # # # #
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # ##
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
# # ##
#
#
#
#
#
#
#
#
#
#
# ###
################
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#########
#### ###
#####
#####
#
#
#
#
#
#
#
#
#
#
#
#
##
###### ######
# # # # # #
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###### ######
###### ####### # # ## # # #
# # # # # #
# # # # # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ##
#
#
# ## ##
## ##
###
#
#
##### # # # # # # #
# # # # # #
#
#
#
#
#
##
#
#
#
#
#
# # # # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
###
#
#
###
##
####
##
#
#
#
#
#
#
#
#
# #
# #
#
#
#
#
# # #
#
#
#
#
#
#
#
###
#
#
#
#
#
#
# # # # #
#
#
#
#
#
# # #
#
#
#
#
# # ## ## ## ## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
##
#
#
###
########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
# # # #
#
#####
####
###
###
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
# # # # # # # ######
####### # # # # #
#
#
#
#
# #
#
#
#
#
#
# # # # #
#
#
#
# # # # # ## # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#### ## # # #
#####
###
###
###
###
##
#
#
#
#
# # ##
##
#
# #
# #
###
## ## ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###
#
# # #
# # #
#
#
#
#
#
#
#
#
#
#
#
#
# # #
# # #
# # #
######
######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
##### # # #
#
#
#
#
#
#
#
##
# # #
#
#
#
#
###
###
156th Ct
155th Ct
W 157th St
W 152nd St
Cimarron Way
Manhattan Pl
Manhattan Way
Parron Ave
Cimarron Ave
W 154th Pl
Haas Ave
W Marine Ave
Parron AveHaas Ave Wilton Pl
155th St
W 157th St
W 154th Pl
W 158th St
WRedondo Beach Blvd
W 152nd St
Wilton Pl
W 152nd St
W 154th St
Cimarron Ave
Daphne Ave
W 154th Pl
Ruthelen Ave
S Harvard Blvd
W 152nd St
W 157th St
W 153rd St
W 156th St
Spinning Ave
Purche Ave
S Saint Andrews Pl
GramercyPl
Gramercy Pl
S Western Ave
S Western Ave
Van Ness Ave
Van Ness Ave
W 154th St
Marine Ave Marine Ave
60'' 18''54''
48''
48''
51''
36''
54''
81''
45''
66''
60''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page E2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #############
# # # # # # ##################
#######
#
#
############
# # # # # # # # # # # # #
#
#
#
#
#
#
#
#
### #
#
#
#
#
#
#
#
#
#
##
#
#
# #
#
# # # # #
#
### #
# # # # ###
##
## # #
#
#
# ### ### ####
# # #
##
# #
##
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
##
##
# # # # # #
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##################
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
#####
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#############
#
#
#
###### #####
#
#
#
#####
###
# # # # # ## # # # # #######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # #
# # # # # # # # #
# # # # # #
# # # # # #####
####
###
###
# # # #
#
#
#
#
#
#
#######
#
#
#
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
###### #
######
###### #
#
###### #####
###########
#
#
####### ########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
#####
#
#
#
#
#
#
# # # #
# # #
# # #
# # #
# # #
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
#
#
#
#
#
####
#
#
# # # # # ## # # # # # #
#
### #
#
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###################
#
#
#
#
#
#
# ####### # # # # # # # #
# # # # # # # # #
#
#
## #
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
####
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
# #######
#########
#
#
#
#
#
#
#
#
#
#
#
#
# #
###### ###### #
#
#
#
#
#
#
#
#
#
#
#
#
# ## ###
#
#
#
#
#
#
#
#
#
#
#
#
#
# ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
## # #
# # #
# # # ### ### ###
# # # ##########
# # #
#
#
##
# # #
# #
# # #### ## #
#
#
#
#
#
#
##
# # # #
#
#
#
#
#
#
### #
#
#
#
#
#
########## #
#######
# # #
# # #
#
#
#
#
#
#
#
#
#
#
#
#
# # #
# # #
#
# # #
#
#
#
#
# #
#
#########
###
####
#
# # #
156th Pl
W 156th St
la Salle Ave
W 152nd St
W 157th St
Nuanu Dr
S Budlong Pl
M
eritParkDr
Brighton AveHalldale Ave
RaymondAve
W Marine Ave
S Budlong Ave
S Budlong Ave
Normandie Ave
la Salle Ave
W 158th St
Halldale Ave
W 152nd St
S Budlong AveRaymond Ave
W 155th St
S Harvard Blvd
W 154th Pl
Denker Ave
W 154th St
W 158th St
W 153rd St
S Normandie Ave
SNormandieAve
Marine Ave Marine Ave
W Redondo Beach Blvd
12'' 15''
15''
15''15''
15''
21''
36'' 30''
18''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page E3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ### ####
#
#
#
# # #
##
#
#
# ## ####
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##### # # # # # # # # # # # # #
#
#
#
#
#
#
# # # # # # # # # # # #
# # # # # #
#
#
# # # # # # #
#
#
#
#
#
# # # # # #
# # # # # #
#
#
#
#
#
#
# #
# # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
######
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
### ### #
#
#
#
#
#
#
#
#
#
#
#
#
# ########
## ##
####### # # # # ## # # #
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # ## # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ##
#
#
# #
#
#
#
#
#
#
#
#
#
#
## # # # # # #
#
#
# #
#
#
#
#
# # ##
#
#
#
#
#
#
#
# # #
### ### ######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
# #
#
## ##
##
# # #
# # #
##
######
## # # ###
#
# # #
S Vermont Ave
S Vermont Ave
Bonsallo Ave
Berendo Ave
Orchard Ave
SHooverSt
S Menlo Ave
New Hampshire Ave
S Budlong Pl
W 157th St
W 158th St
W 152nd St
W 156th St
Van Buren Ave
S Budlong Ave
W 159th St
S Budlong Ave
S Catalina Ave
S Menlo Ave
W 152nd St
S Hoover St
S Orchard Ave
W 155th St
W 158th St
W 154th St
Bonsallo Ave
S Orchard Ave
S Budlong Ave
W 159th St
S Denver Ave
W 157th St
Marine Ave
W 155th St
Magnolia Ave
S Ainsworth St
Berendo Ave
Harbor Frwy & Transit Way
HarborFwy
Harbor Fwy
W Redondo Beach Blvd
W Redondo Beach Blvd
36'' 12'' 24''
15''
18''
30''
8''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page E4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
#
#
#
#
#
#
# # # # #
# # # ## # # #
#
# # ##
# #
##
## # # # ##
#
##
#
#
# # # # ## ## # # #
#
#
#
#
#
#
#
#
# # #
# # # # #
#
# # # # #
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # # # # #
#
#
#
#
#
#
#
###
#
#
#
#
#
#
#
##
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
# # # # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
## #
#
#
#
#
#
#
#
# # # #
#
#
# # # # # ## #
#
#
#
#
#
#
# # # # # # # #
#
#
#
#
#
#
#
# # # # # # # #
# # # # # # # #
#
#
#
#
#
#
# # # # # # # #
# # # # # #
# # # # # #
# #
# # # # #
# #
# # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
# # # # # # # # # ##
#
###
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#####
# #
#
#
#
#
#
#
##
###
#
#
###
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
# # # # # # # # # # # # #
#
#
######
######
###
###
###
###
###
##
#
##
# #
W 162nd St
Coronado Ln
Venus PlCrest Ln
Jupiter Pl
Pacific Ln
Galaxy Pl
ChaneraAve
Wilkie Ave Casimir Ave
Atkinson Ave
Ocean Ln
W 161st St
Manhattan Way
W 163rd St
S Faysmith Ave S Falda AveOgram Ave
ChaneraAve
CasimirAve
AtkinsonAve
Spinning AvePurche AveS Lemoli Ave Chadron Ave
Redondo Beach Blvd
ArdathAve
Daphne AveSpinning Ave
Ardath Ave
W 164th St
Atkinson Ave
W 165th St
W 157th St
Arcturus Ave
Marigold Ave
Manhattan Beach Blvd
Redondo Beach Blvd
W 157th St
Manhattan Beach Blvd
W Redondo Beach Blvd
W 164th St
W 164th St
Crenshaw Blvd
Crenshaw Blvd
Dominguez Channel
51''
36''
42''
48''60''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page F1
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ########
###########################
#
# # # # # # # # # #
# # # # # # # # # # #
# #
##
##
#
#
# ####
#
# # # # #
#
###
#
# # # #
# # ##
# #
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
##
## # # # ##
#
###
#
#
#
#
#
#
#
#
# ## ##
##
#
#
#
#
########## # ## # ## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
# # # # #
# #
# # ##
#
#
#
#
# #
#
#
#
#
# #
#
#
#
#
#
#
#
# # # # # #
# # # # # # # # #
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
####
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
########
#
#
#
#
#
#
#
#
#
#
#
#
#
# ###
###########################
#
#
#
##
#
#
#
#
#
#########
#
#
#
#
##
#
#
#
#
#
#
#
# ## ###
#
#
#
#
#
#
##
###
#
#
###
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
###
#
#
#
#
#
#
# # # # #
#
#
#
#
#
# # #
#
#
#
#
# # ## ## ## ## #
# #
###
#
#
#
#
#
# # # # # # # ######
####### # # # # #
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # ## # # # # # #
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
######
#
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # #
#
#
#
#
#
# #
#
#
#
# # # # #
#
#
# # # # #
# # # # #
# # # # # #
####
#
# # # # #
#
#
#
#
#
#
#
# #
#
#
#
# # # # # ##
#
#
#
#
#
# # #
#
#
#
#
#
#
# # # #
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
# # #
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
# # #
###
###
###
##
#
#
#
#
#
#
##
# # # # # # ####
#
#
#
#
####### #
#######
#
#
#
#
#
#
#
# # #### ## # #
# # # ####
### #
#
#
# # # #
#
##
#
###
# # #
#
#
#
#
#
# # #
#
#
#
#
###
###
Coronado Ln
Venus Pl
Wilton PlParron Ave
Crest Ln
W 165th St
S Saint Andrews Pl
Jupiter Pl
Pacific Ln
Illinois Ct
Galaxy Pl
Taylor Ct
W 159th St
Ocean Ln
W 161st St
Manhattan Way
W 159th St
SM
anhattanPl
W 160th St
S St Andrews Pl
W 161st St
RuthelenAve
W 157th St
Spinning Ave
W 158th St
Gramercy Pl
Daphne AveSpinning Ave
W 165th St
Gramercy Pl
W 161st St
Gramercy Pl
Wilton Pl
Haas Ave Hobart Blvd
Illinois Ct
W 160th St
W 157th St
S Saint Andrews Pl
W Redondo Beach Blvd
W Redondo Beach Blvd
W Gardena BlvdW 164th St
Manhattan Pl
S Western Ave
S Western Ave
Van Ness Ave
Van Ness Ave
W 162nd St W 162nd St
18''
24''
21''
36''
48''51''
81''
24''
42''
66''
60''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page F2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #########
# # # # # # # # # # # # #
######################## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
########
#
# #
#
#
###
#
#
# ####
#
#
#####
#
###
#
#####
###
#
#
#### #
#
# # #
#
#
# ### ### ####
# # #
##
#
#
#
## #
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
#
#
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # ## # # # # # #
#
#
#
#
#
#
#
#
#
#
#
# # # # # # ###
### ###
### #
#
#
#
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # ### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
# ####### # # # # # # # #
# # # # # # # # #
#
#
#
#
#
# # #
# # #
# # #
# # # #
#
#
#
#
#
## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # #
#
#
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
####
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
####### # # #
# # # # # # # # ### # # # # # # #
###### ###### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
## ###
###
#
#
############ ##
#
#
#
#
#
#############
# #
############
#
#
#
#
#
#
#
#
#
#
#
#
#
# ##
#
#
#
#
#
#
#
#
#
#
#
#
#
######## ########
### ####
#
############
#
#
########### ###########
############
#
#
#
#
#
###
##
##
#
#
#
#
#
#
#############
##
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
## ##
#
#
#
#
##
# # #
# #
# #
# #
# # # ## # # # #
# #
#####
# # # # # # ##
### ###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #### ## # #
######## # #
# # # ####
### #
#
#
# # # #
#
##
#
# # #### ## #
###
### ##
## # #
# #
#
#
#
##
########
########### #####
# # #
#
###
###
#
#
#
#
###
#
# # #
Nuanu Dr
W 160th St
Raymond Ave
W 157th St
Brighton AveHalldale Avela Salle Ave
M
eritParkDr
Brighton AveHalldale Ave
RaymondAve
W 158th St
W Redondo Beach Blvd
Hobart Blvd
W 159th St
W 160th St
W 161st St
la Salle Ave
Brighton Ave
Halldale Ave
S Harvard Blvd W 162nd St
W 163rd St
W 164th St
W Gardena Blvd
W 160th St
W 158th St
Denker Ave
Dalton Ave
S Budlong Ave
W Gardena Blvd W Gardena Blvd
W 162nd St W 162nd St S Normandie Ave
12''
18''
24''
15''
15''
18''
24''
21''
24''
24''
36'' 30''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page F3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ###
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
####
#
#####
#
#
#
##
#
#
# ## ####
# # #
#
#
## #
#
##
#
#
#
#
## #
#
###
# #
# ##
#
#
#
#
#
#
#
#
#
#
#
#
#
### ### #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
###### # # # #
# # # #
#
#
#
#
#
#
#######
## ##
####### # # # # ## # # #
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # ## # # # # # #
# # # # #
#######
#
#
############# #######
#
#
#
#
#
######### # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
# # # # # #
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ##
#
#
###### ######
### ###
######
####### #######
#######
######
######
#
#
#
#
#
#
# # # ##
#
#
#
#
#
##
#
#
#
#
#
#
#
##
#
#
#
#
# # # #
#
#
# # #####
#
#
#
#
#
#
########## # # # #
#
# # #
# # #
# # # # # # #
#
#
#
#
#
# # # ####
# # # ####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
# # ##
#
#
#
# # #
#
#
##
# # #
#
#
## ##
##
# # #
# # #
# #
# #
# # # # #
# # # # #
###
# #
#
#
#
###
# # # # # # #
###
### #########
#######
#
# # #
#
#
# # #
S Vermont Ave
W 160th St
W Alondra Blvd
Bonsallo Ave
S Hoover St
W 163rd St
Raymond Ave
W 157th St
W 158th St
W 159th St
BonsalloAve
Berendo Ave
W 159th St
Estrella Ave
W 164th St
W 158th St
S New Hampshire Ave
Estrella Ave
W 160th St
Berendo Ave
W 159th St
SHooverSt
W 162nd St
S Denver Ave
W 157th St
W 163rd St
Magnolia Ave
W 161st St
S Orchard Ave
W Alondra BlvdS Vermont Ave
W 164th St
S Menlo Ave
S Budlong Ave
S Ainsworth St
S Ainsworth St
HarborFrwy&
TransitW
ay
Harbor Fwy
HarborFwy
W Gardena Blvd
W Gardena Blvd
36''
24''
12'' 24''
15''
18''
33''
21''24''
30''
42''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page F4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #########################
# # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# ####
#
#
#####
#
#
#
#
# ###
#
#
#
#
##
#
#
#
#
#
###
#
#
#
####
####
#
#
#
#
#
# # #
#
#
#
#
#
# # # #
#
#
#
#
#
# # # # # #
# # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
# # #
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
# #
#
#
#
#
#
#######
#
# # # #
# # # #
# # # #
# # # # # # #
# # # # # # #
#
#
#
#
#
#
##
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
######
######
####
#
#
#
#
#
#
#
#
#
#
#
############
############
#
#
#
# # # #
#
#
##
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####### #
#######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #### ### # # #
# # # ####
### #
#
#
# # # #
#
##
#
#### #
#
#
#
Verburg Ct
Taylor Ct
W 165th St Illinois Ct
169th Pl
Haas Ave
Purche Ave
Wilton Pl
166th Pl
Daphne Ave
Daphne AveSpinning Ave
Spinning Ave
S Harvard Blvd
Bridgewater Way
Illinois Ct
W 165th Pl
Taylor Ct
Purche Ave
W 168th St
W 169th Pl
Hobart Blvd
Wilton Pl
TaylorCt
Haas Ave
Johnson Ct
170th St
W 165th St
Hobart Blvd
Haas Ave
Wilton Pl
S Saint Andrews Pl
Gramercy Pl Manhattan Pl
W 169th St
169th Pl
W 169th Pl
Gramercy Pl
W Gardena Blvd
171st St
W 164th St
Van Ness Ave
Van Ness Ave
S Western Ave
S Western Ave
W 166th St W 166th St
Dominguez Channel
18''
24''
40''
30''
36''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page G2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ############
# # # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##########
# # # # # # # # # # # # # # # #
##
#
#
# ####
#
#
#####
#
#####
#
#
#### #######
#
#
#
# ###
#
#
#
#
##
#
#
#
#
#
#####
#
#
#
####
# # # # # #
####
#
#
#
###
#
#
#
##
#
#
#
#
### ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # #
#
#
#
#
#
###
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
# # ## # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#######
# # # #
#
#
#
#
#
#
#
# # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # ### # # # # # # #
#############
# #
############
#
#
#
#
#
#
############
#
#
#
#
# ##
#
#
#
#
#
#
#############
# # # #
##
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # #
# # # # # # # # #
# # # # # # # # ## # #
#
#
#
#
#
#
#
#
#
# # # # # # # # # # # #
# # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # ##
#
##
#
#
#
#
#
#
#
#####
# # # # #
####
# # #
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ##
#
#
#
#
#
######
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
## ##
# # # #
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
# # ##
#
#
#
#
#
#
#
#
# # # # # # #
# # # # # # #
#
#
#
## # # # # # # # ## # # # # # # #
# # # # # # #
##
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
######
######
###
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # ##
#
#
#
#
#
# # # # # # #
## ##
# # # # # #
#
#
#
####
# # #
##
#
#
#
# # # # # ##
#
#
#
# #
##
#
#
#
#
#
#
#
#
#
# # # #
#
#
##
#
#
#
#####
#####
#
#
#
#
# # # #
#
#
#
#
## #
#
#
#
#
#
#
#
#
#
#
#
#
###
# # ##
# # # # #
# # # ###
##
# #
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
# # # # # #
# # #
### ###
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #### ### # # #
# # # ####
### #
#
#
# # # #
#
##
#
##
########
########### #####
# #
####
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ## ##
#
#
#
# # #
####
####
# #
###### #####
#
##
Asher Ct
W 168th St
W 170th St
Raymond Ave
Komori Cir
Grace Ln
Steven St
W 169th Pl
Mayflower Cir
S Harvard Blvd
S Park Ln
S Harvard Blvd
Bridgewater Way
W 165th Pl
S Dalton Ave
W 170th St
Halldale Ave
la Salle Ave
Dalton Ave Brighton Way
S Budlong Ave
171st St
Hobart Blvd
W 172nd St
Raymond AveMariposa AveRaymond Pl
la Salle Ave
Hobart Blvd
Dalton Ave
Denker Ave
W 166th St W 166th St W 166th St
W 170th St
Brighton Ave
Halldale Ave
W 168th St
W 169th Pl
W 163rd St
W 164th St
W Gardena Blvd
W 168th St
W 169th St
Denker Ave
W Gardena Blvd W Gardena Blvd
S Normandie Ave
S Normandie Ave
18''
18''
24''
39''
24''
18''
40''
30''
18''
15''
36''
30'' 24''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page G3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
#
#
#
#
#
#
#
#
#
#
#
#
####
##
###
#####
#
#
#
## #######
#
#
##
#
#
#
#
#
#
#
#
#
#
# # # # # #
#
#
#
#
#
#
#
#
#
##
## #
#
###
# #
# ##
#
##
#
#
#
######### # # # # # # # # #
#
#
#
#
#
#
#
# # # #
# # # # # #
#######
#
#
#
#
#
#
#######
#
#
#
#
#
#
#
##
#
#
#
#
# # # #
#
#
# # #####
#
#
#
#
#
#
########## # # # #
#
#
#
# # # #
# # #
# # #
# # # # # # #
#
#
#
#
#
# # # ####
# # # ####
#
#
#
#
#
#
#
#
#
#
#
# # # ## # #
#
#
#
# # ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # ##
#
#
#
#
#
# # # # #
#######
#
#
#
#
#
#
#
#
## #
#
#
#
#
#
#
##
#
#
#
####
#
#
#
#
#
#
#
#
#
# # # # #
#
#
#
#
##
# # ## # #
###
#
#
#
#
###
#
#
#
#
#
#
#
#
### ####
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ####
#
#
#
# # # # # ##
#
#
#
# #
# ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
# # # # #
# # # # #
###
# #
#
#
#
###
# # ## # #
# # # # # # #
#####
#####
###
## #
### ###
# #
#
#
#
#
#
##
# #
###
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
####
## #
#
# # ##
### #########
#######
#
# #
# # #
####
#####
#
## ##
S Vermont Ave
171st St
Merit Ave
W 170th St
W 168th Pl
Raymond Ave
S Ainsworth St
SVerm
ontAve
S Park Ln W 172nd St
S Orchard Ave
S Catalina Ave
S Budlong Ave
W 164th St
W 169th St
S Menlo Ave
Raymond AveMariposa Ave S Budlong AveRaymond Pl
SDenverAve
S Menlo Ave
W 165th Pl
S Orchard Ave
S Ainsworth St
W 166th St
W 165th Pl
Merit Ave
Estrella Ave
W 167th St
W 170th St
S Hoover St
W 164th St
Berendo Ave
Berendo Ave
S New Hampshire Ave
Harbor Frwy & Transit Way
Harbor Fwy
Harbor Fwy
W Gardena Blvd
W Gardena Blvd
W 168th St
W 168th St
24''
36''
15''
42''
60''
48''
24''Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page G4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
##
#
#
##
#
#
#
#
#
# # # # # # # # # # #
# # # # # # #
#
#
#
#
#
#
#
#
#
##
#
#
#
#
##
#
##
#
#
#
#
# # # # # # #
# # # # # # #
#
#
#
#
#
#
#
#####
######
######
###
######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # #
#
#
#
#
#
#
#
#
# # # # # #
#######
#
# # # # # # # ## # # # # # # #
# # # #
#
#
#
#
#
#
# #
#
#
#
#
#
#
#
#
#
Wilton Pl
Verburg Ct
Lotus Way
Daphne Ave
W 173rd St
169th Pl
Gramercy Pl
Daphne Ave
Purche Ave
Bridgewater Way
Taylor Ct
176th St
W 178th St
170th St
Descanso Way
SpinningAve
178th St
Illinois CtWilton Pl
Haas Ave
Gramercy Pl
178th St
177th StW 177th St
171st St
Van Ness Ave
Van Ness Ave
S Western Ave
S Western Ave
W Artesia Blvd W Artesia Blvd
Dominguez Channel
40''
48''
42''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page H2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # # #
# # # # #
####
# # # # # # # # # # # # # # # #
# # # # # # #
#
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
#
#
#
#
#####
#
#
# #
#
#
#
#
#
##
#
#
#
#
##
#
##
#
#
#
#
# # # # # #
#
###
# #
#
#
# # # # #
# #
# # # #
#
#
##
#
#
#
#
#
#
# # # # # # # # # # # # ##
#
#
# # # # # # # # # #
#
#
#
#
#
##
# #
# ##
##############
#### # # # ## # #
#
# # # # # # # # # # # #
# # # # # # # # #
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # #
#
# #
#
#
#
#
#
#
#
#
# # # ##
#
##
#
#
#
#
#
#
#
#########
#
#
#
#
#
#
# # #
#
#
#
######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # #
#
#
#
#
## ### ######
#
#
#
#
#
#
# # # # # # #
# # # # # # #
# # # # # # # #
# # # # # # # # # # # #
#
#
#
#
#
# # # # # # # # ## # # # # # # #
# # # # # # #
##
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # ##
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
######
######
###
#########
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##########
##
#
#
#
## # # # # # # # ## # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
####
# # #
#
# # # # # # # # # # # # # # #
# # # # # # # # # # # #
#
####### # # # # # # # # ## # # # # # # # #########
# # # # # # # # # # ## # # # # # # # # # #
# # # # # #
#
#
#
#
#
#
# # # #
##
# # # # # # # # # # # #
# # # # # # # # # # # #
##
#
#
#
#
# # # # # ##
#
#
#
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
#
## #
#
#
# #
#####
####
# #
# #
##
#
# # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # # #
# #
#
#
#
#
# # ## ##
#
#
#
# # #
#
#
#
#
#
#
#
#
#
#
#### # # # # # # #
# # # # # # # # ###
#
#
#
#
#
#
#
#
#
###### #####
Valmeyer Ave
Lotus Way
W 170th St
Mariposa AveKomori CirDalton Ave
Brighton Ave
Orchid Way
Steven St
W 169th Pl
172nd Pl
S Harvard Blvd
Magnolia Way
Bridgewater Way
Raymond Pl
171st St Brighton Way
W 172nd StHalldale Ave
S Park Lnla Salle Ave
W Cassidy St
W 173rd St
W 170th St
Dalton Ave
Denker Ave
W 178th St W 178th St
S Normandie Ave
S Normandie Ave
W Artesia Blvd W Artesia Blvd
Dominguez Channel
18''
30''
18''
39''
40''
18''
18''
48''
18''
36''
36''
30''
15''
42''
30''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page H3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # #
#
#
#
#
####
##
###
#####
#
#
#
#
#
#
#
#
#
# # # # # #
#
#
# # # #
#
###################
############ # # # ## # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
# #
#
#
# #
#
#
#
#
#
#
#
# # #######
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ####
#
#
#
#
#
#
#
#
# # # # # # # # # # ## # # # # # # # # #
#
#
#
#
#
# # # # # # # # # # #
# # # # # # # # # #
##
#
#
#
#
#
#
#
#
#
#
#
# #
#
#
#
# # # # # ##
#
#
#
# #
# #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
##
# #
###
#
#
#
#
#
#
#
#
#
#
# # # #
#
#
#
####
## #
#
#
#
#
#
#
#
# # # # # # # # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
# # # #
#
# # # #
#
###### #
#####
# #
################ # # # #
# # # # # ###############
## ##
Steven St
Ruby Ct
Citrine Ct
State Rte 91
Valmeyer Ave Catalina Ave
171st St
Berendo Ave
Merit Ave
W 170th St
Mariposa Ave
Artesia Fwy
SHooverSt
Sapphire Ln
S Catalina Ave
S Budlong Ave
W 173rd Pl
W 172nd St
Raymond Pl
S Orchard Ave
Berendo Ave S Menlo Ave
S New Hampshire Ave
S Park Ln
Merit Ave
W 173rd St
W 182nd St
W 177th St
S Hoover St
W 170th St
W Artesia Blvd W Artesia Blvd
W Cassidy St
Harbor Frwy & Transit Way
Harbor Fwy
Harbor Fwy
S Vermont Ave
S Vermont Ave
Dominguez Channel
36''
36''
18''
18''
36''
30''
15''
48''
60''Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page H4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 ######
#
# # # #
#
#
#
# # # # # # # # # # #
# # # # # # #
##
# # # # # # # ## # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
# # # # # # # #
# # # # # ## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # #
#
#
W 181st St
184th St
Haas Ave
183rd St183rd St
W 184th St
W 183rd St
W 185th St
Illinois Ct
180th St
Corwin St
179th St
184th St
Haas Ave
183rd St
181st St
179th St
180th St
180th Pl
TaylorCt
Fairview Ln
184th St
185th St
181st St
Hobart BlvdHarvard Blvd
S Hobart Blvd
W 180th St
W 178th St
Purche Ave
Wilton Pl
185th St
181st St W 181st St
180th St
179th St
185th St
S Western Ave
S Western Ave
State Rte 213Manhattan PlSaint Andrews Pl
Wilton Pl DormanAve
178th St
Saint Andrews Pl
Manhattan Pl
S Harvard Blvd
Gramercy Pl
178th St
177th StW 177th St
180th Pl 180th Pl
Van Ness Ave
Van Ness Ave
W 182nd St W 182nd St
Dominguez Channel
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page I2
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 #
# # # # # # # # # # # # # # # # # # #
##########
#
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # #
#
##
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # #
# # # # # # # # # # # #
#
#
#
##
#
# # # # # # # # # # #
# # # # # # # # # # # #
# # # # # # # # # #
# # # # # #
#
#
#
# # # # # # # ## # # # # # # #
##
#
#
#
#
#
#
#
# # # # # # # # #
# # # # # # # # #
####### #######
###### #####
#
#
#
####### # # # # # # # # ## # # # # # # # #########
# # # # # # # # # # ## # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
##
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # # ## # # # # # # # # # #
# # # # # # ## #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # ##
#
#
#
#
#
#
#
#
#
# # # # # # # # # # # #
#
#
#
#
#
#
## ## #
#
#
#
#
#
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# #
# #
#
#
#
#
## #
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # #
# # # # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
W 185th St
Dalton Pl BrightonW
ay
Curt PlAvery Pl
Dalton Ave
179th Pl
Hobart BlvdHarvard Blvd
S Hobart Blvd
W 184th St
W 183rd St
W 184th StS Denker Ave
W 179th St
W 184th St
W 180th St
la Salle Ave
DenkerAve
W 183rd St
Electric St
W 180th St
S Harvard Blvd
Evelyn Ave
W 182nd St
W 182nd St
W 178th St W 178th St
S Normandie Ave
S Normandie Ave
Dominguez Channel
30''
24''
18''
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page I3
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78 # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # # # # # # # # #
#
#
#
#
# # # # # # # #
#
#
#
#
#
# # # # # # # # # #
#
#
#
#
# # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # #
#
#
#
#
#
#
#
# # # # # # # # # #
#
#
# # # # # # #
# # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
# # # # # # # # # #
#
#
#
#
#
#
#
#
#
#
# # # # # # # #
#
#
# # # # # # # # #
#
# # # # # # # #
# # # # # # # # # # # # # # # # #
#
#
# # # # # # # # # # # # # # # # # # # #
#
#
#
#
#
#
#
# # # #
#
# # # #
#
###### #
##
Ruby Ct
Citrine Ct
Daisy Ave
Berendo Ave
W 189th St
Budlong Ave
SHooverSt
Sapphire Ln
W 184th St
Rumbold St
W 184th St
Felder St
W 177th St
S Budlong Ave
W 184th St
W182ndSt
S Hoover St
Amethyst Cir
Electric St
W 182nd St
W 182nd St
S Vermont Ave
S Vermont Ave
Harbor Frwy & Transit Way
Harbor Fwy
Harbor Fwy
Dominguez Channel
Last Revised: March 12, 2026 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\CA\Gardena\203411-000000\02 Project Information\09 GIS\ A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4
E1 E2 E3 E4
F1 F2 F3 F4
G2 G3 G4
H2 H3 H4
I2 I3 I4
O
0 500250
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: Los Angeles County GIS,
City of Gardena GIS, ESRI
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Street Flow Index Page I4
CITY OF GARDENA
Legend
Catch Basin
# Street Flow Direction
# County Owned Storm
Drains
# City Owned Storm Drains
Gardena City Boundary
Waterways
Vicinity Map
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
CITY OF GARDENA
APPENDIX C EXHIBIT MAPS
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-01 Project Detail:
Project Name: S New Hampshire Ave
Project Description:
18 33 1,264 $52,600
18 24 897 $230,600
24 30 1,178 $166,100
33 42 1,557 $3,960,300
33 48 1,792 $5,183,400
- - - $9,593,000
CITY OF GARDENA
STORM DRAIN MASTER PLAN
$5,787,500 $7,524,000
Unit Cost
($/LF)
Replacing approximately 3,545 feet of 18 to 33-inch diameter pipelines along S New Hampshire Ave with 33 to 48-inch diameter pipelines.
Total 3,545
$3,106,100
SD-01E 1,745 $3,127,200 $4,065,400
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
(2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost. (4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost. (1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977.
Length
(ft)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
SD-01A 25 $31,700 $41,300
Notes:
SD-01B 155 $139,100 $180,900
SD-01C 85 $100,200 $130,300
SD-01D 1,535 $2,389,300
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-02 Project Detail:
Project Name: Magnolia Ave
Project Description:
10, 12 18 696 $392,400
18 24 897 $305,000
18 30 1,178 $1,142,100
18 36 1,352 $1,310,800
- - - $3,150,800
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
CITY OF GARDENA
STORM DRAIN MASTER PLAN
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Total 1,715 $1,900,800 $2,471,200
SD-02A 340 $236,700 $307,800
SD-02D 585 $790,800 $1,028,100
SD-02B 205 $184,000 $239,200
SD-02C 585 $689,000 $895,700
Replacing approximately 1,715 feet of 10 to 18-inch diameter pipelines along Magnolia Avenue with 18 to 36-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-03 Project Detail:
Project Name: W 135th St
Project Description:
12 18 696 $92,400
- - 80 - $92,400
Notes:
CITY OF GARDENA
STORM DRAIN MASTER PLAN
(2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost. (4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost. (1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977.
Total $55,700 $72,500
Capital
Improvement Cost(4)(5)
Project
Schedule
SD-03 80 $55,700 $72,500
Replacing approximately 80 feet of 12-inch diameter pipelines along W 135th St with 18-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-04 Project Detail:
Project Name: W 160th St
Project Description:
15 21 773 $551,000
15 24 897 $1,160,100
- - 1,715 - $3,150,800
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
CITY OF GARDENA
STORM DRAIN MASTER PLAN
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Total $1,900,800 $2,471,200
SD-04A 430 $332,400 $432,200
SD-04B 780 $699,900 $909,900
Replacing approximately 1,210 feet of 15-inch diameter pipelines along W 160th St with 21 and 24-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Project
Schedule
Capital
Improvement Cost(4)(5)
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-05 Project Detail:
Project Name: W 144th St
Project Description:
6 12 460 $26,900
- - 35 - $26,900
Notes:
CITY OF GARDENA
STORM DRAIN MASTER PLAN
Total $16,200 $21,100
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
SD-05 35 $16,200 $21,100
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 35 feet of 6-inch diameter pipelines along W 144th St with 12-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-06 Project Detail:
Project Name: S Normandie Ave
Project Description:
15 18 696 $392,400
13,15 24 897 $676,800
18 30 1,178 $1,356,900
- - - $2,426,100
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
CITY OF GARDENA
STORM DRAIN MASTER PLAN
Total 1,490 $1,463,600 $1,902,800
SD-06C 695 $818,600 $1,064,200
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
SD-06A 340 $236,700 $307,800
SD-06B 455 $408,300 $530,800
Replacing approximately 1,490 feet of 15 to 18-inch diameter pipelines along S Normandie Avenue with 18 to 30-inch diameter pipelines. The improvement is intended to upgrade the capacity of the existing system.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-07 Project Detail:
Project Name: S Western Ave
Project Description:
12 18 696 $346,100
12,15 24 897 $669,300
18,24 30 1,178 $878,500
40 42 1,557 $825,700
40 48 1,792 $1,871,400
- - - $4,591,000
CITY OF GARDENA
STORM DRAIN MASTER PLAN
(3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost. (4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Total 2,150 $2,769,700 $3,600,800
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977.
SD-07E 630 $1,129,000 $1,467,700
(2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter.
SD-07C 450 $530,000 $689,000
SD-07D 320 $498,100 $647,600
SD-07A 300 $208,800 $271,500
SD-07B 450 $403,800 $525,000
Replacing approximately 2,135 feet of 12 to 40-inch diameter pipelines along S Western Avenue with 18 to 48-inch diameter pipelines
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-08 Project Detail:
Project Name: W Redondo Beach Blvd
Project Description:
24 30 1,178 $166,100
24 36 1,352 $2,442,200
24 42 1,557 $812,900
- - - $3,421,200
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
CITY OF GARDENA
STORM DRAIN MASTER PLAN
SD-08B 1,090 $1,473,400 $1,915,500
SD-08C 315 $490,400 $637,600
Total 1,490 $2,064,000 $2,683,400
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
SD-08A 85
Replacing approximately 1,490 feet of 24-inch diameter pipelines along W Artesia Blvd with 30 to 42-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
$100,200 $130,300
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-09 Project Detail:
Project Name: W Artesia Blvd
Project Description:
24 36 1,352 $4,178,600
- - 1,865 - $4,178,600
Notes:
CITY OF GARDENA
STORM DRAIN MASTER PLAN
Total $2,521,000 $3,277,300
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
SD-09 1,865 $2,521,000 $3,277,300
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 1,865 feet of 24-inch diameter pipelines along W Artesia Blvd with 36-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-10 Project Detail:
Project Name: W Artesia Blvd
Project Description:
18 30 1,178 $351,400
18 36 1,352 $1,590,900
- - 1,715 - $3,150,800
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
CITY OF GARDENA
STORM DRAIN MASTER PLAN
SD-10B 710 $959,800 $1,247,800
Total $1,900,800 $2,471,200
SD-10A 180 $212,000 $275,600
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 890 feet of 18-inch diameter pipelines along W Artesia Blvd with 30 to 36-inch diameter pipelines
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-11 Project Detail:
Project Name: Marine Ave
Project Description:
12 15 585 $339,300
- - 350 - $339,300
Notes:
CITY OF GARDENA
STORM DRAIN MASTER PLAN
Total $204,700 $266,200
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
SD-11 350 $204,700 $266,200
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 350 feet of 12-inch diameter pipelines along Marine Avenue with 15-inch diameter pipelines
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-12 Project Detail:
Project Name: 129th St
Project Description:
24 30 1,178 $97,700
- - 50 - $97,700
Notes:
CITY OF GARDENA
STORM DRAIN MASTER PLAN
Total $58,900 $76,600
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
SD-12 50 $58,900 $76,600
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 550 feet of 24-inch diameter pipelines along 129th St with 30-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-13 Project Detail:
Project Name: W 139th St
Project Description:
18 24 897 $186,000
- - 125 - $186,000
Notes:
CITY OF GARDENA
STORM DRAIN MASTER PLAN
Total $112,200 $145,900
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
SD-13 125 $112,200 $145,900
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 125 feet of 18-inch diameter pipelines along W 139th St with 24-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-14 Project Detail:
Project Name: Van Ness Ave
Project Description:
30 36 1,352 $2,677,600
- - 1,195 - $2,677,600
Notes:
CITY OF GARDENA
STORM DRAIN MASTER PLAN
Total $1,615,400 $2,100,100
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
SD-14 1,195 $1,615,400 $2,100,100
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 1,195 feet of 30-inch diameter pipelines along Van Ness Avenue with 36-inch diameter pipelines.
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-15 Project Detail:
Project Name: W 139th St
Project Description:
12 15 585 $257,000
15 18 696 $317,300
- - 1,715 - $3,150,800
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
CITY OF GARDENA
STORM DRAIN MASTER PLAN
SD-15B 275 $191,400 $248,900
Total $1,900,800 $2,471,200
SD-15A 265 $155,000 $201,500
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 540 feet of 12 and 15-inch diameter pipelines along W 139th St with 15 and 18-inch diameter pipelines
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-16 Project Detail:
Project Name: W 166th St
Project Description:
12,18 24 897 $1,167,600
24 30 1,178 $1,347,100
- - 1,715 - $3,150,800
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
CITY OF GARDENA
STORM DRAIN MASTER PLAN
SD-16B 690 $812,700 $1,056,600
Total $1,900,800 $2,471,200
SD-16A 785 $704,400 $915,800
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 1,475 feet of 12 to 24-inch diameter pipelines along W 166th St with 24 and 30-inch diameter pipelines
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78
STORM DRAIN MASTER PLAN
MARCH 2026 / FINAL / CAROLLO
Project Number: SD-17 Project Detail:
Project Name: W 159th St
Project Description:
12 18 696 $184,700
15 24 897 $528,100
- - 1,715 - $3,150,800
Notes:
(1) Engineering News Report (ENR) Greater LA Construction Cost Index for May 2025 is 15,977. (2) Baseline Construction Cost is based on multiplying the unit cost by length of each proposed diameter. (3) Estimated Construction Cost includes a 30% contingency of the baseline construction cost.
CITY OF GARDENA
STORM DRAIN MASTER PLAN
SD-17B 355 $318,600 $414,200
Total $1,900,800 $2,471,200
SD-17A 160 $111,400 $144,900
(4) Total project costs includes a 10% markup for engineering, and a 10% markup for construction management and a 7.5% markup for project administration of the estimated construction cost.
Replacing approximately 515 feet of 12 and 15-inch diameter pipelines along W 159th St with 18 and 24-inch diameter pipelines
Project Details:
Project Element
Existing
Diameter
(in)
Proposed
Diameter
(in)
Length
(ft)
Unit Cost
($/LF)
Baseline
Construction Cost(1)(2)
Estimated
Construction Cost(3)
Capital
Improvement Cost(4)(5)
Project
Schedule
Docusign Envelope ID: D45A4564-B092-463B-9104-07AE5B859C78