Capitola City Council
April 9, 2026

REVISED 4/9/2026 AT 12:30 PM
City of Capitola
City Council Meeting Agenda
Thursday, April 09, 2026 – 6:00 PM
City Council Chambers
420 Capitola Avenue, Capitola, CA 95010
Mayor: Margaux Morgan
Vice Mayor: Gerry Jensen
Council Members: Joe Clarke, Melinda Orbach, Susan Westman Closed Session – 5 PM
Closed Sessions are not open to the public and held only on specific topics allowed by State Law (noticed below). An announcement regarding the items to be discussed in Closed Session will be made in the City Hall Council Chambers prior to the Closed Session. Members of the public may, at this time, address the City Council on closed session items only. There will be a report of any final decisions in City Council Chambers during the Open Session Meeting.
i. CONFERENCE WITH LEGAL COUNSEL – ANTICIPATED LITIGATION Initiation of litigation pursuant to Gov’t Code § 54956.9(d)(4) One Case
ii. CONFERENCE WITH LEGAL COUNSEL
Potential Initiation of Litigation Pursuant to Government Code § 54956.9, subdivision (D)(4) One Case
iii. CONFERENCE WITH REAL PROPERTY NEGOTIATORS
(Gov’t Code § 54956.8)
Property: A portion of the City's Right of Way on El Camino Medio adjacent to the intersection with Monterey Avenue, Capitola, CA
City Negotiator: Jamie Goldstein, City Manager
Negotiating Parties: AMG Gourmet Foods, LLC (dba Mijo's Taqueria) Under Negotiation: Lease of City Real Property
Regular Meeting of the Capitola City Council – 6 PM

1. Roll Call and Pledge of Allegiance
Council Members Joe Clarke, Melinda Orbach, Susan Westman, Vice Mayor Gerry Jensen, and Mayor Margaux Morgan

2. Additions and Deletions to the Agenda

3. Presentations
Presentations are limited to eight minutes.

A. Proclamation Declaring April 2026 as Arts, Culture, and Creativity Month B. Proclamation Honoring the 50th Anniversary of Community Bridges' Meals on Wheels for Santa Cruz County

4. Report on Closed Session

5. Additional Materials
1 City Council Meeting Agenda – April 09, 2026
City of Capitola Page 2
Additional information related to an agenda item on this agenda and submitted to the City after distribution of the agenda packet pursuant to Government Code §54957.5. All correspondence received prior to 5:00 p.m. on the Wednesday preceding a Council Meeting will be distributed to Councilmembers to review prior to the meeting. Information submitted after 5 p.m. on that Wednesday may not have time to reach Councilmembers, nor be read by them prior to consideration of an item.

A. Item 3A - Correspondence Received
B. Item 6 - Correspondence Received
C. Item 9A - Correspondence Received & Staff Memorandum D. Item 9B - Correspondence Received

6. Oral Communications by Members of the Public
Oral Communications allows time for members of the Public to address the City Council on any “Consent Item” on tonight’s agenda, or on any topic within the jurisdiction of the City that is not on the “General Government/Public Hearings” section of the Agenda. Members of the public may speak for up to three minutes, unless otherwise specified by the Mayor. Individuals may not speak more than once during Oral Communications. All speakers must address the entire legislative body and will not be permitted to engage in dialogue. A maximum of 30 minutes is set aside for Oral Communications.

7. Staff / City Council Comments
Comments are limited to three minutes.

8. Consent Items
All items listed as “Consent Items” will be enacted by one motion in the form listed below. There will be no separate discussion on these items prior to the time the Council votes on the action unless members of the City Council request specific items to be discussed for separate review. Items pulled for separate discussion will be considered following General Government. Note that all Ordinances which appear on the public agenda shall be determined to have been read by title and further reading waived.

A. City Council Meeting Minutes
Recommended Action: Approve minutes from the special meeting on March 20, 2026, and the regular meeting on March 26, 2026.

B. City Check Registers
Recommended Action: Approve check registers dated March 6, 2026, and March 13, 2026.

C. Use Agreements for Capitola City Hall Council Community Room Recommended Action: Authorize the City Manager to execute a no-cost agreement with the Capitola Beach Festival for use of the City Hall Community Room for the next three years.

9. General Government / Public Hearings
All items listed in “General Government / Public Hearings” are intended to provide an opportunity for public discussion of each item listed. The following procedure pertains to each General Government item: 1) Staff explanation; 2) Council questions; 3) Public comment; 4) Council deliberation; 5) Decision.

A. Stockton Avenue Bridge – Structural Evaluation Findings Recommended Action: Receive the structural evaluation of the Stockton Avenue Bridge and provide direction on next steps.

B. Grand Avenue Pathway – Conceptual Design and Cost Estimate 2 City Council Meeting Agenda – April 09, 2026
City of Capitola Page 3
Recommended Action: Receive the conceptual design and cost estimate for the Grand Avenue Pathway and provide direction on next steps.

10. Adjournment
The next regularly scheduled City Council meeting is on April 26, 2026, at 6:00 PM. _____________________________________________________
How to View the Meeting
Meetings are open to the public for in-person attendance at the Capitola City Council Chambers located at 420 Capitola Avenue, Capitola, California, 95010.

Other ways to Watch:

Spectrum Cable Television channel 8
City of Capitola, California YouTube Channel
How to Provide Comments to the City Council
Members of the public may provide public comments to the City Council in-person during the meeting.

If you are unable to attend in-person, please email your comments to [email protected] and they will be included as a part of the record for the meeting.

Notice regarding City Council: The City Council meets on the 2nd and 4th Thursday of each month at 6:00 p.m. in the City Hall Council Chambers located at 420 Capitola Avenue, Capitola.

Agenda and Agenda Packet Materials: The City Council Agenda and the complete Agenda Packet are available for review on the City’s website and at Capitola City Hall prior to the meeting. Need more information? Contact the City Clerk’s office at 831-475-7300.

Agenda Materials Distributed after Distribution of the Agenda Packet: Pursuant to Government Code §54957.5, materials related to an agenda item submitted after distribution of the agenda packet are available for public inspection at the Reception Office at City Hall, 420 Capitola Avenue, Capitola, California, during normal business hours.

Americans with Disabilities Act: Disability-related aids or services are available to enable persons with a disability to participate in this meeting consistent with the Federal Americans with Disabilities Act of 1990. Assisted listening devices are available for individuals with hearing impairments at the meeting in the City Council Chambers. Should you require special accommodations to participate in the meeting due to a disability, please contact the City Clerk’s office at least 24 hours in advance of the meeting at 831-475-7300. In an effort to accommodate individuals with environmental sensitivities, attendees are requested to refrain from wearing perfumes and other scented products.

Si desea asistir a esta reunión pública y necesita ayuda - como un intérprete de lenguaje de señas americano, español u otro equipo especial - favor de llamar al Departamento de la Secretaría de la Ciudad al 831-475-7300 al menos tres días antes para que podamos coordinar dicha asistencia especial o envié un correo electrónico a [email protected].

Televised Meetings: City Council meetings are cablecast “Live” on Charter Communications Cable TV Channel 8 and are recorded to be rebroadcasted at 8:00 a.m. on the Wednesday following the meetings and at 1:00 p.m. on Saturday following the first rebroadcast on Community Television of Santa Cruz County (Charter Channel 71 and Comcast Channel 25). Meetings are streamed “Live” on the City’s website by clicking on the Home Page link “Meeting Agendas/Videos.” Archived meetings can be viewed from the website at any time. 3 1
Gautho, Julia
From: Mary Cahalen <[email protected]>
Sent: Thursday, April 9, 2026 11:54 AM
To: City Council
Cc: Bryant, Nikki
Subject: Thank You for April Arts & Creativity Month Proclamation Follow Up Flag: Follow up
Flag Status: Flagged
Dear City Council Members,
I would like to extend my sincere thanks for the proclamation recognizing April as Arts & Creativity Month. It is truly an honor to serve on the Art and Cultural Commission during such a meaningful time that celebrates the creativity and spirit of our community.

I regret that I am unable to attend the meeting to accept the proclamation in person.

However, I am grateful that our Vice President, Karin Anderson, will be there to accept it on behalf of the Commission.

Thank you for your continued support of the arts and for helping to enrich the cultural fabric of Capitola. I hope our community fully enjoys all the art and creativity we are proud to bring to Capitola.

With appreciation,
Mary Beth Cahalen
Chair of the Capitola Art and Cultural committee
4 Item 5 A.
1 Gautho, Julia
From: Heidy <[email protected]>
Sent: Monday, April 6, 2026 7:58 PM
To: City Council
Subject: April 9, 2026
Follow Up Flag: Follow up
Flag Status: Flagged
Dear Capitola City Council,
I am writing regarding Item 6 (Oral Communications by Members of the Public) on your agenda scheduled for Thursday, April 9, 2026. This letter follows prior correspondence submitted after your March 26, 2026 meeting, to which I have received no response. I am therefore placing this matter into the public record through inclusion in the agenda packet.

The absence of any response to the specific concerns raised—particularly those related to public trust in decision-making—has heightened, rather than resolved, the issue.

Accordingly, I request that a future agenda item be scheduled to address recusal practices beyond the narrow legal standards discussed by Council and addressed by the City Attorney on March 26, 2026.

That discussion was limited to financial conflicts under the Political Reform Act and bias in quasi-judicial matters. It did not address the guidance provided in the Fair Political Practices Commission ethics training, which all councilmembers are required to complete. That training emphasizes the importance of avoiding situations that raise reasonable questions about impartiality and public trust, even when they do not constitute a legal conflict of interest.

This request is not about whether a legal violation occurred, but whether the City has adequate standards to address situations that reasonably call impartiality into question.

Legislative actions are not ethics-free zones. The appearance of impropriety applies in legislative contexts as well—it is simply weighed differently. At no point did Councilmember Orbach or the City address the ethical question raised.

To restate the relevant facts:

1. Councilmember Orbach’s spouse filed a complaint with the Department of Housing and Community Development regarding Capitola’s housing policy. 5 Item 5 B.
2 2. That complaint was adversarial to the City’s position.

3. Councilmember Orbach subsequently participated in and voted on policy directly responsive to that complaint.

4. In doing so, she participated in shaping the City’s response to her spouse’s challenge.

A reasonable person could question whose interests were being served. That concern does not disappear because the action is characterized as legislative.

These events, and the absence of a substantive response, raise concerns about the integrity of the decision-making process.

In addition to my request for a future agenda item, I also request that the City provide clear articulation of the following:

1. What factors the City Attorney uses to distinguish legislative from quasi-judicial decisions; and

2. What ethical obligations the City applies to legislative actions where questions of impartiality are raised.

Best regards,
Heidy Kellison
6 Item 5 B.
1 Gautho, Julia
From: Kevin Maguire <[email protected]>
Sent: Monday, April 6, 2026 3:41 PM
To: City Clerk; City Council
Cc: Gerry Jensen; Margaux Morgan; Clarke, Joe; Westman, Susan; Melinda Orbach Subject: Agenda 9 A. Stockton Avenue Bridge – Structural Evaluation Findings Dear Mayor and Council Members,
I write regarding the April 9 agenda item on the Stockton Avenue Bridge structural evaluation.

The findings are unambiguous: this bridge has 5 to 10 years of service life remaining, and the replacement project timeline is 3 to 4 years. This Council must act decisively — and the decisions made tonight about project scope will shape outcomes for decades.

I urge you to include one specific direction to staff: explicitly coordinate the Stockton Avenue Bridge replacement with the Rail Trail corridor and Capitola Trestle project from the outset of preliminary engineering and CEQA.

Here is why this matters urgently:

The trestle project is not speculative. The Santa Cruz County Regional Transportation Commission has already completed an Environmental Impact Report for the Rail and Trail corridor. RTC is now actively pursuing a trail-only configuration. Active Transportation Program grants are in place, and there is potential for remaining funding to be directed specifically to the Capitola Trestle crossing over Soquel Creek — immediately adjacent to the Stockton Avenue Bridge.

These are not two separate projects. They are two crossings of the same creek, separated by a matter of feet, serving complementary and interdependent functions. The trestle will carry pedestrians and cyclists. The Stockton bridge carries vehicles. Together they complete a multimodal corridor connecting Capitola Village to the broader regional network. Designed in isolation, they will cost more, compete for the same environmental review resources, and miss the grant narrative that could bring significant outside funding to both.

The CEQA scoping process is the critical window. Including the trestle corridor in the Stockton bridge project's purpose and need statement now costs nothing. Failing to do so forecloses coordination options that cannot easily be reopened once environmental review is underway.

Specifically, I ask that Council direct staff to:

1. Contact RTC to establish formal coordination between the Stockton Avenue Bridge replacement and the Capitola Trestle/Rail Trail project before CEQA scoping is finalized.

2. Evaluate whether any remaining ATP grant funds or trestle project funding can be leveraged in conjunction with the bridge replacement to reduce the City's cost burden. 7 Item 5 C.
2 3. Ensure the bridge replacement's traffic and multimodal analysis reflects the trestle trail as existing planned infrastructure — not a hypothetical — so that the narrower widening footprint can be reconsidered in light of active transportation being served by the adjacent trestle. (stay at 44 feet instead of 52 feet, saving over $1 million dollars)
The window to align these projects is right now. The EIR is done. The grants are in place. The RTC is moving. A $20 million bridge replacement designed without reference to an adjacent, funded, EIRcleared trail crossing is a planning failure this community cannot afford.

I respectfully urge this Council to include explicit trestle coordination in tonight's direction to staff.

Thank you for your service to Capitola.

Kevin Maguire
Capitola Resident
C.O.A.S.T. — Community Oversight for Accountable, Sustainable Transportation 8 Item 5 C.
1 Gautho, Julia
From: michael routh <[email protected]>
Sent: Monday, April 6, 2026 5:44 PM
To: City Council
Subject: Item 9A
Follow Up Flag: Follow up
Flag Status: Flagged
Mayor and Council members,
There is a reason London Bridge built in 1176, and the Rialto Bridge in Venice built in 1591 are sƟll in daily use aŌer hundreds of years. Those ciƟes and their leaders have recognized the historical importance of those structures and agreed to preserve them through the centuries.

While the Stockton Ave Bridge doesn't rival those bridges in age and historical importance, to Capitola residents it is just as historically significant to our community. Every effort should be undertaken to cure the structural deficiencies and save the bridge.

The unfounded fear of flood debris accumulaƟng at the bridge was first promoted by the Council majority of Brooks, Brown, and Pedersen as a subterfuge to widen the bridge to accommodate the rail/trail bike trail through the Village.

The false "potenƟal log jam" scare tacƟc appears to have taken on a life of its own since then and is now mistakenly accepted as the truth. In the enƟre history of the bridge, storm debris in the amount that would create a log jam and flood the Village has never occurred, not in the 100 year storms since construcƟon of the bridge nor any other Ɵme. The Council needs to recognize the "flood" argument never had any validity when Pedersen brought it forth and remains a false argument today for replacing the bridge.

The Council, in your deliberaƟons, must recognize the historical importance of the Stockton Ave Bridge and make every effort to preserve it. It's a maƩer of willingness on the part of the Council. It's a maƩer of prioriƟes. If the city can afford to consider a roundabout at Bay and Hill with the resultant cost, the council can afford to seriously work toward preserving one of Capitola's most important landmarks, the Stockton Ave Bridge.

Mick Routh
Capitola
Sent from my iPad
9 Item 5 C.
1 Gautho, Julia
From: Michael routh <[email protected]>
Sent: Tuesday, April 7, 2026 4:00 PM
To: City Council
Subject: Item 9A
Council members,
Below is the process required to remove and replace the Stockton Ave Bridge. It's been slightly over one year since I received this information from the then city attorney. This was never addressed at last year's meeting when the bridge replacement was discussed. Once again, there is nothing in the agenda packet information for the council that addresses these requirements.

Mick Routh
Capitola
10 Item 5 C.
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3 Sent from my iPad
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Memo
To: City Council
From: Jessica Kahn, Public Works Director
Date: April 8, 2026
Re: Item 9A – Moffatt and Nichol’s Peer Review Memorandum of the Stockton Bridge Evaluation
Good afternoon,
Attached is a Memorandum from Moffatt and Nichol, received by the City on April 8, 2026, to be included in the April 9th, 2026 agenda packet for Item 9A. 19 Item 5 C.
2185 N California Blvd, Suite #500
Walnut Creek, CA 94596
(925) 944-5411 Fax: (925) 544-4732
www.moffattnichol.com

MEMORANDUM
To: Jessica Kahn, Public Works Director
City of Capitola
From: Brad Porter, P.E.

Date: April 8, 2026
Subject: Stockton Ave Bridge Repair, Document Review
Job Number: 230131
The purpose of this Memo is to provide our opinion in reviewing the following documents, as requested by the City of Capitola as part of the recent repairs to the deck of the Stockton Avenue bridge.

Memorandum-Stockton Bridge at Soquel Creek Responses (Biggs Cardosa (BC), March 31, 2026) Memorandum- Stockton Avenue Bridge, Supplemental Structural Condition Evaluation (BC, March 31, 2026) Executive Summary- Existing Condition (CSW/ST2, April 2, 2026) Based upon our review of these documents and having observed the Stockton Ave Bridge during the repairs our opinion is that the observations and recommendations in these documents to be reasonable conclusions from their investigation of the bridge condition.
20 Item 5 C.
1 Gautho, Julia
From: Mick <[email protected]>
Sent: Wednesday, April 8, 2026 3:55 PM
To: City Council
Subject: Add on to TJ’s letter Item 9A
Mayor and Council members,
In addiƟon to TJ’s suggesƟons in the last paragraph of his leƩer addressing Item 9A, consider authorizing a Staffing / Management audit to determine if staffing levels and responsibiliƟes are appropriate. The city manager has added mulƟple staff members and shed mulƟple responsibiliƟes during his tenure. It’s Ɵme for a professional Staffing / Staffing audit before any budget is approved.

Mick Routh
Sent from my iPhone
21 Item 5 C.
1 Gautho, Julia
From: Keith Bloom <[email protected]>
Sent: Monday, April 6, 2026 11:18 AM
To: City Council
Subject: Grand Avenue Pathway
Follow Up Flag: Follow up
Flag Status: Flagged
Dear City Council members:

My wife and I have been long-time owners of the home at 103 Oakland Avenue. We are writing to encourage City Council to approve the funding of the relocation of the Grand Avenue pathway between Oakland Avenue and Central Avenue. We believe that the pathway is a very unique and beautiful amenity that serves not only our neighborhood but just as importantly the broader Capitola and Santa Cruz communities. While we understand that the pathway will continue to be impacted by Mother Nature, we feel the cost of its relocation is far outweighed by the community benefits it will continue to provide for many years to come.

Sincerely,
Keith & Linda Bloom
22 Item 5 D.
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26 Item 5 D.

Capitola City Council
Agenda Report
Meeting: April 9, 2026
From: City Manager Department
Subject: City Council Meeting Minutes
Recommended Action: Approve minutes from the special meeting on March 20, 2026, and the regular meeting on March 26, 2026.

Background: Attached for City Council review and approval are the draft minutes from the special meeting on March 20, 2026, and the regular meeting on March 26, 2026.

Alignment with 2025-2029 Strategic Plan Priority: Accountable Government Attachments:

1. Special Meeting 3/20/2026

2. Regular Meeting 3/26/2026
Report Prepared By: Julia Gautho, City Clerk
Approved By: Jamie Goldstein, City Manager
27 Item 8 A.

City of Capitola
Special City Council Meeting Minutes
Friday, March 20, 2026 – 3:30 PM
City Council Chambers
420 Capitola Avenue, Capitola, CA 95010
Mayor: Margaux Morgan
Vice Mayor: Gerry Jensen
Council Members: Joe Clarke, Melinda Orbach, Susan Westman

1. Roll Call
The meeting was called to order at 3:30 PM. In attendance: Council Members Clarke, Orbach, Westman, Vice Mayor Jensen, and Mayor Morgan.

2. Closed Session
i. CONFERENCE WITH LEGAL COUNSEL
Potential Initiation of Litigation Pursuant to Government Code § 54956.9, subdivision (D)(4) (1 matter)
ii. CONFERENCE WITH LEGAL COUNSEL
Significant Exposure to Litigation pursuant to Government Code Section 54956.9, subdivisions (D)(2) and (E)(1) (1 matter)
Public Comment: None

3. Report on Closed Session – The City Council met and discussed two items on the Closed Session agenda. No reportable action was taken.

4. Adjournment
The meeting adjourned at 4:50 PM. The next regularly scheduled City Council meeting is on March 26, 2026, at 6:00 PM.
________________________
Margaux Morgan, Mayor
ATTEST:
______________________
Rosie Wyatt, Deputy City Clerk
28 Item 8 A.

City of Capitola
City Council Meeting Minutes
Thursday, March 26, 2026 – 6:00 PM
City Council Chambers
420 Capitola Avenue, Capitola, CA 95010
Mayor: Margaux Morgan
Vice Mayor: Gerry Jensen
Council Members: Joe Clarke, Melinda Orbach, Susan Westman Closed Session – 5 PM
i. CONFERENCE WITH LEGAL COUNSEL—LIABILITY CLAIMS (Gov. Code § 54956.95) Claim Against the City of Capitola
Claimant: Esther Francis Schrank
ii. PUBLIC EMPLOYEE PERFORMANCE EVALUATION (Govt. Code § 54957(b)) City Council's Performance Evaluation of the City Manager Regular Meeting of the Capitola City Council – 6 PM

1. Roll Call and Pledge of Allegiance - The meeting was called to order at 6:04 PM. In attendance: Council Members Clarke, Orbach, Westman, Vice Mayor Jensen, and Mayor Morgan.

2. Additions and Deletions to the Agenda – None

3. Presentations
A. The Mayor presented certificates of recognition to participants of "Discover Capitola."

4. Report on Closed Session – The City Council met and discussed two items on the Closed Session agenda. No reportable action was taken.

5. Additional Materials
A. Closed Session Item ii – One email received after publication of the agenda packet.

B. Item 8E – Two emails received after publication of the agenda packet C. Item 8F – Two staff memorandums and one email received after publication of the agenda packet
D. Item 9A – Three emails received after publication of the agenda packet.

E. Item 9B – One email received after publication of the agenda packet.

F. Item 9D – One staff memorandum received after publication of the agenda packet.

6. Oral Communications by Members of the Public
 Heidy Kellison
 Goran Klepic
 Bob Morgan
 Joe McGinty
29 Item 8 A.

City Council Meeting Minutes – March 26, 2026
City of Capitola Page 2

7. Staff / City Council Comments
 Community and Economic Director Herlihy provided an update on the 41st Avenue Corridor Study.
 Council Member Clarke invited the public to the Art and Cultural Commission meeting on April 14th where the Commission will review the Monterey Avenue railing and the Park at Rispin Mansion mosaic art projects.
 Council Member Orbach provided an update on the Friends of the Santa Cruz Metro campaign kickoff.
 Council Member Westman requested the Bay Avenue roundabout discussion be scheduled for the May 14th City Council meeting; provided updates from a recently attended Senior Advisory Board Meeting; inquired about the process to install speed bumps; and requested the City Attorney clarify when recusals are necessary.
 Vice Mayor Jensen provided updates on the recently attended Santa Cruz Regional Transportation Commission meeting, the Park Avenue fence project, and Visit Santa Cruz.

8. Consent Items
A. City Council Meeting Minutes
Recommended Action: Approve minutes from the regular meeting on March 12, 2026, and the special meeting on March 16, 2026.

B. City Check Registers
Recommended Action: Approve check registers dated January 16, 2026, January 30, 2026, February 13, 2026, and February 20, 2026.

C. Liability Claims Against the City of Capitola
Recommended Action: Deny liability claim submitted by Esther Francis Schrank.

D. Santa Cruz County Multi-Jurisdictional Hazard Mitigation Plan Update Recommended Action: Adopt a resolution adopting the Santa Cruz County Multi-Jurisdictional Hazard Mitigation Plan (MJHMP) 2025 Update, including Volume 1 and the City of Capitola Annex contained in Volume 2. (Resolution No. 4478)
E. Capitola Mall and Objective Standards Zoning Code Amendments Recommended Action: Adopt an ordinance amending Capitola Municipal Code Title 17: Zoning.

F. Housing Element Annual Progress Report 2025
Recommended Action: Receive report and direct staff to submit the annual report to the California Department of Housing and Community Development (HCD) by April 1, 2026.

Vice Mayor Jensen requested to pull Items 8A and 8E.

Motion to approve the Consent Calendar Items 8B-D and 8F: Council Member Orbach Second: Council Member Westman
Voting Yea: Council Members Clarke, Orbach, Westman, Vice Mayor Jensen, Mayor Morgan

9. General Government / Public Hearings
A. Stockton Avenue Bridge Investigation Update
Recommended Action: Receive report on the Stockton Avenue Bridge investigation.

Public Works Director Kahn presented the staff report.

Public Comment:
 Carin Hannah
30 Item 8 A.

City Council Meeting Minutes – March 26, 2026
City of Capitola Page 3
B. Community Action Board Appointment
Recommended Action: Appoint a representative to the Santa Cruz County Community Action Board.

Deputy City Clerk Wyatt presented the staff report.

Public Comment:
 Helen Ewan-Storey
Motion to appoint Manuel Castro to a term expiring December 31, 2027: Council Member Orbach
Second: Council Member Westman
Voting Yea: Council Members Clarke, Orbach, Westman, Vice Mayor Jensen, Mayor Morgan
C. Local Roadway Safety Plan
Recommended Action: Receive an informational presentation on the draft Local Roadway Safety Plan (LRSP) and provide feedback.

Public Works Director Kahn presented the staff report.

Public Comment:
 Kevin Maguire
D. 41st Avenue Pavement Rehabilitation and Multimodal Improvements Recommended Action: 1) Award a construction contract to Granite Rock Company for the 41st Avenue Pavement Rehabilitation and Multimodal Improvements Project in the amount of $2,037,868; and 2) adopt a resolution amending the FY 2025-26 Budget in the amount of $239,500 from RMRA and Measure D Funds and $60,000 from the Gas Tax Fund identified in the FY 2025-26 Mid-Year Budget Report.

Public Works Director Kahn presented the staff report.

Public Comment: None
Motion to award a construction contract to Granite Rock Company; adopt Resolution No. 4479 amending the FY 2025-26 Budget: Council Member Orbach Second: Vice Mayor Jensen
Voting Yea: Council Members Clarke, Orbach, Westman, Vice Mayor Jensen, Mayor Morgan
E. FY 2026-27 Budget Principals and Goals
Recommended Action: 1) Review progress and status of adopted 2025-27 Strategic Plan Priorities; and 2) Identify goals and related key projects for Fiscal Year 2026-27.

City Manager Goldstein and Administrative Services Director Malberg presented the staff report.

Public Comment: None
City Council identified the following as goals and related key projects for Fiscal Year 2026-27: enhancing Capitola Village, implementing a Nexus Study, exploring backup energy sources, exploring Transient Occupancy Tax modifications, Bay Ave Corridor improvements, 41st Avenue Corridor improvements, updating the Climate Action Plan, investigating the Capitola Trestle, Cliff Drive Resiliency Project, Sidewalk Infill Project, 31 Item 8 A.

City Council Meeting Minutes – March 26, 2026
City of Capitola Page 4
Stockton Avenue Bridge Replacement Project, Esplanade Park Project, Pavement Management Plan, Grand Avenue Bluff Plan, and the Capitola Wharf Project.

8. Consent Items Pulled for Discussion
A. City Council Meeting Minutes
Recommended Action: Approve minutes from the regular meeting on March 12, 2026, and the special meeting on March 16, 2026.

Vice Mayor Jensen requested that his speech from the March 16 th special meeting be
recorded in the minutes.

Public Comment: None
Motion to approve the March 16th meeting minutes with the addition of Vice Mayor Jensen’s speech: Council Member Orbach
Second: Council Member Westman
Voting Yea: Council Members Clarke, Orbach, Westman, Vice Mayor Jensen, Mayor Morgan
E. Capitola Mall and Objective Standards Zoning Code Amendments Recommended Action: Adopt an ordinance amending Capitola Municipal Code Title 17: Zoning. (Ordinance No. 1075)
Vice Mayor Jensen requested that Merlone Geier include local unions in any future Capitola Mall redevelopment.

Public Comment: None
Motion to adopt Ordinance No. 1075 amending Capitola Municipal Code Title 17, with a request to encourage Merlone Geier to include local unions in the potential future Capitola Mall redevelopment: Council Member Westman
Second: Vice Mayor Jensen
Voting Yea: Council Members Clarke, Orbach, Westman, Vice Mayor Jensen, Mayor Morgan

10. Adjournment
The meeting adjourned at 8:20 PM. The next regularly scheduled City Council meeting is on April 9, 2026, at 6:00 PM.
________________________
Margaux Morgan, Mayor
ATTEST:
______________________
Rosie Wyatt, City Clerk
32 Item 8 A.

Capitola City Council
Agenda Report
Meeting: April 09, 2026
From: Administrative Services Department
Subject: City Check Registers
Recommended Action: Approve check registers dated March 6, 2026, and March 13, 2026.

Account: City Main
Date Starting Check # Ending Check # Payment
Count Amount
03/06/2026 106080 106123 46 $ 471,533.81
03/13/2026 106124 106258 135 $ 261,446.13
The main account check register dated February 20, 2026, ended with check #106079.

Account: Payroll
Date Starting
Check/EFT #
Ending
Check/EFT #
Payment
Count Amount
03/06/2026 7289 7295 123 $ 448,302.42
03/13/2026 7296 7300 10 $ 154,001.10
The payroll account check register dated February 20, 2026, ended with payroll check #7289.

Following is a list of payments issued for more than $10,000 and descriptions of the expenditures:

Check/
EFT Issued to Dept Description Amount
3248

EMPLOYMENT

DEVELOPMENT

DEPARTMENT
CM State tax PPE 2/14/26 $ 11,479.48
3249 INTERNAL REVENUE
SERVICE CM Federal taxes & Medicare PPE 2/14/26 $ 35,310.93 3251 VOYA FINANCIAL CM Employee 457 contributions
PPE 2/14/26 $ 10,828.30
3247 CalPERS Member
Services Division CM PERS contributions PPE 2/14/26 $ 68,332.18 39 SANTA CRUZ COUNTY
BANK Fin January Credit Card Charges $ 17,264.46
38 SIGNATURE
RESOLUTION, LLC CDD Cabrillo Mobile Home Park Arbitration Services $ 36,250.00 3246 CalPERS Health Insurance CM March health insurance $ 96,592.59 33 Item 8 B.
106080

ALL EARTH

GEOTECHNICAL

ENGINEERING INC
PW 41st Avenue Geotechnical
Services $ 12,605.00
106085 CHAVAN & ASSOCIATES,
LLP Fin FY25/26 Audit Services $ 19,950.00
106087 CIVICPLUS LLC CM Website Hosting &
Implementation $ 18,690.98
106090

CSW-STUBER-STROEH

ENGINEERING GROUP
INC
PW Cliff Drive Resiliency Project
Services $ 12,109.63
106093 EXCEEDIO Fin March City Hall IT Services $ 17,247.97 106118 SSB CONSTRUCTION PW Treasure Cove Playground
Project Services $ 222,898.50
106121 VISIT SANTA CRUZ
COUNTY Fin FY25/26 Q2 TMD $ 64,950.63
3361 EMPLOYMENT

DEVELOPMENT DEPT
CM State taxes PPE 2-28-26 $ 12,132.73
3362 INTERNAL REVENUE
SERVICE CM Federal taxes & Medicare PPE 2-28-26 $ 37,230.04 3364 CalPERS Member
Services Division CM PERS Contributions PPE 02/28/26 $ 68,108.39 3365 VOYA FINANCIAL CM Employee 457 Contributions
PPE 02/28/26 $ 10,956.84
7296 Employee CM Employee Final Pay $ 18,247.62
106138 BURKE WILLIAMS AND
SORENSEN LLP CM January City Attorney Legal Services $ 23,218.94 106147 CROSSROADS
SOFTWARE INC PD eCitation System Software $ 25,400.00
106148

CSW-STUBER-STROEH

ENGINEERING GROUP
INC
PW Cliff Drive Resiliency Project
Services $ 10,707.65
106149

CUMMING

MANAGEMENT GROUP,
INC.

PW
Community Center
Construction Management
Services
$ 22,335.00
106192 SECOND HARVEST
FOOD BANK CDD 24-CDBG-NH-10001-A3 Jul -Dec $ 40,022.03
106200 SWA GROUP INC CDD 41st Avenue Corridor Study $ 14,937.95 106204 VERDE DESIGN INC PW Universally Accessible
Playground Design Services $ 19,540.00
Alignment with 2025-2029 Strategic Plan Priority: Accountable Government Attachments:

1. 03-06-26 Check Register

2. 03-13-26 Check Register
Report Prepared By: Luis Ruiz, Accountant II
Reviewed By: Julia Gautho, City Clerk and Jim Malberg, Administrative Services Director Approved By: Jamie Goldstein, City Manager
34 Item 8 B.
35 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount 106080 03/06/2026 ALL EARTH GEOTECHNICAL ENGINEERING INC $12,605.00 Invoice Date Description Amount
1761 02/18/2026 41st Avenue Geotechnical Services $12,605.00 106081 03/06/2026 AMAZON CAPITAL SERVICES $90.47
Invoice Date Description Amount
1HN9-CVCM-JRTG 02/24/2026 Batteries, ground coffee, sponges $38.14 1L6J-YY4R-7DPX 02/19/2026 Afterschool supplies $18.40
147H-TFVP-VYXD 02/19/2026 Double sided tape, mounting squares $33.93 106082 03/06/2026 B & B SMALL ENGINE REPAIR $217.56
Invoice Date Description Amount
89410 02/24/2026 Chain loops $217.56
106083 03/06/2026 BETZ WORKS INC $4,500.00
Invoice Date Description Amount
25264 02/23/2026 Remove and Replace Sidewalk, patch existing asphalt $4,500.00 106084 03/06/2026 CAPITOLA-SOQUEL CHAMBER OF COMMERCE $7,434.04 Invoice Date Description Amount
CSCC013126 03/02/2026 FY25/26 Q2 TOT $7,434.04
106085 03/06/2026 CHAVAN & ASSOCIATES, LLP $19,950.00
Invoice Date Description Amount
C&A-19040 02/16/2026 FY25/26 Audit Services $19,950.00
106086 03/06/2026 CINTAS CORPORATION $361.42
Invoice Date Description Amount
5320774005 02/26/2026 Corp yard first aid supplies $177.39 5320774003 02/26/2026 City Hall first aid supplies $184.03 106087 03/06/2026 CIVICPLUS LLC $18,690.98
Invoice Date Description Amount
361423 03/01/2026 Website Hosting & Implementation $18,690.98 $10,000.00
$8,690.98
106088 03/06/2026 COMMUNITY TELEVISION OF SANTA CRUZ COUNTY $1,277.25 Invoice Date Description Amount
3703 02/26/2026 January Planning Commision and City Council meeting footage $1,277.25 City of Capitola
City Checks Issued March 6, 2026
1200 - Capital Improvement Fund
1305 - Restricted TOT
1000 - General Fund
2211 - ISF - Information Technology

36 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 6, 2026
106089 03/06/2026 CRYSTAL SPRINGS WATER CO. $389.94
Invoice Date Description Amount
CSW022826 02/28/2026 February drinking water $389.94
106090 03/06/2026 CSW-STUBER-STROEH ENGINEERING GROUP INC $12,109.63 Invoice Date Description Amount
2601090 01/30/2026 Cliff Drive Resiliency Project Services thru 12.31.25 $9,793.48 2602082 02/28/2026 Stockton Ave Bridge Debris Mitigation Services through 1.31.26 $2,316.15 106091 03/06/2026 EAST BAY TIRE CO. $937.43
Invoice Date Description Amount
2218686 02/25/2026 Tires $937.43
106092 03/06/2026 ENVIRONMENTAL INNOVATIONS INC. $605.00 Invoice Date Description Amount
3477 02/27/2026 CalRecycle February outreach $605.00
106093 03/06/2026 EXCEEDIO $17,247.97
Invoice Date Description Amount
18631 03/01/2026 March Jade Temp Location IT Services $454.65 18630 03/01/2026 March City Hall IT Services $16,793.32 106094 03/06/2026 EXECUTIVE FACILITIES SERVICES, INC. $4,900.81 Invoice Date Description Amount
36766 02/28/2026 February Janitorial Services $4,900.81 $4,320.24
$580.57
106095 03/06/2026 FERGUSON ENTERPRISES LLC #795 $641.40 Invoice Date Description Amount
6545758 02/27/2026 Pump $641.40
106096 03/06/2026 FLYERS ENERGY LLC $4,404.62
Invoice Date Description Amount
CFS-4525870 02/15/2026 Card processing $209.52
26-480905 02/19/2026 407 gallons gasoline $1,852.99
26-584416 02/25/2026 509 gallons gasoline $2,342.11
2211 - ISF - Information Technology
1000 - General Fund
1311 - Wharf
1311 - Wharf
1200 - Capital Improvement Fund

37 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 6, 2026
106097 03/06/2026 GINA ENRIQUEZ $7,882.00
Invoice Date Description Amount
GE022526 02/25/2026 Instructor payment $7,882.00
106098 03/06/2026 GV LAND SURVEYING $1,200.00
Invoice Date Description Amount
743 02/25/2026 Jade Street PG&E Easement $1,200.00
106099 03/06/2026 HANYA FOJACO $1,248.00
Invoice Date Description Amount
HF022526 02/25/2026 Instructor payment $1,248.00
106100 03/06/2026 HEIDI MICHELLE WOODMANSEE $1,053.00
Invoice Date Description Amount
HW022526 02/25/2026 Instructor payment $1,053.00
106101 03/06/2026 INTERSTATE BATTERY SYSTEM OF SAN JOSE INC $147.42 Invoice Date Description Amount
110010341 02/24/2026 Auto batteries $147.42
106102 03/06/2026 KATHRYN HANEY $264.21
Invoice Date Description Amount
KH022726 02/27/2026 CSMFO Conference Travel Reimbursement $264.21 106103 03/06/2026 KBA Document Solutions LLC $365.42
Invoice Date Description Amount
55Y1586429 02/19/2026 City Hall copier usage charges $15.00 55Y1587205 02/23/2026 City Hall copier usage charges $233.21 55Y1588769 03/02/2026 City Hall copier usage charges $117.21 106104 03/06/2026 KIMLEY HORN AND ASSOCIATES INC $2,602.76 Invoice Date Description Amount
34891380 01/31/2026 Bay Ave Corridor Project Services thru 01.31.26 $2,602.76 106105 03/06/2026 LABORMAX STAFFING $840.24
Invoice Date Description Amount
26-489923 02/20/2026 Public works seasonal labor 2/17 - 2/20/26 $840.24 2211 - ISF - Information Technology
1200 - Capital Improvement Fund
1200 - Capital Improvement Fund

38 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 6, 2026
106106 03/06/2026 LAURA ALIOTO $260.00
Invoice Date Description Amount
LA022526 02/25/2026 Instructor payment $260.00
106107 03/06/2026 Leda Laidlaw-Hunter $367.31
Invoice Date Description Amount
LLH022726 02/27/2026 CSMFO Conference Travel Reimbursement $367.31 106108 03/06/2026 LINDE GAS & EQUIPMENT INC. $244.40
Invoice Date Description Amount
55067373 02/22/2026 Acetylene rental $244.40
106109 03/06/2026 LUIS RUIZ $203.24
Invoice Date Description Amount
LR022726 02/27/2026 CSMFO Conference travel reimbursement $203.24 106110 03/06/2026 McMASTER-CARR SUPPLY COMPANY $207.02
Invoice Date Description Amount
60474784 02/25/2026 Impression foam, foam sheet $108.86 60683568 03/02/2026 Insert tap $44.98
60707444 03/02/2026 Plug chamber $53.18
106111 03/06/2026 MEGAN GREWOHL $368.03
Invoice Date Description Amount
MG022026 02/20/2026 CAC National Conference Travel Reimbursement $368.03 106112 03/06/2026 MISSION LINEN SUPPLY $417.51
Invoice Date Description Amount
525528676 02/18/2026 Corp. Yard linen service $101.85
525528675 02/18/2026 Fleet towels, uniform cleaning $80.97 525503668 02/16/2026 Community Center mop and mat service $78.64 525567986 02/25/2026 Fleet towels, uniform cleaning $61.86 525567987 02/25/2026 Corp. Yard linen service $94.19
106113 03/06/2026 NICHOLE BRYANT $393.14
Invoice Date Description Amount
NB022526 02/25/2026 Afterschool snacks reimbursement $393.14

39 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 6, 2026
106114 03/06/2026 ORIGINAL WATERMEN $4,139.65
Invoice Date Description Amount
503247 02/03/2026 Work jackets $4,139.65
106115 03/06/2026 SAN LORENZO LUMBER $52.15
Invoice Date Description Amount
55-1017073 02/26/2026 Saw blades, tile spacers $52.15
106116 03/06/2026 SANTA CRUZ FIRE EQUIPMENT CO. $178.44 Invoice Date Description Amount
115370 02/22/2026 Fire Extinguisher services $178.44
106117 03/06/2026 SANTA CRUZ LIVE SCAN INC. $60.00
Invoice Date Description Amount
284 03/01/2026 New hire live scans $60.00
106118 03/06/2026 SSB CONSTRUCTION $222,898.50
Invoice Date Description Amount
SSBTCP#3 02/25/2026 Treasure Cove Playground Project Services thru 2.25.26 $222,898.50 106119 03/06/2026 T MOBILE $436.80
Invoice Date Description Amount
TM022026 02/20/2026 February cell phone usage - acct # 989440968 $436.80 106120 03/06/2026 VICTORIA M JOHNSON $581.75
Invoice Date Description Amount
VMMJ022526 02/25/2026 Instructor payment $581.75
106121 03/06/2026 VISIT SANTA CRUZ COUNTY $64,950.63
Invoice Date Description Amount
VSCC013126 03/02/2026 FY25/26 Q2 TMD $64,950.63
106122 03/06/2026 WESTERN EXTERMINATOR COMPANY $110.21
Invoice Date Description Amount
91486692 02/23/2026 City Hall rodent control $110.21
106123 03/06/2026 PATRICIA PROCTOR $184.00
Invoice Date Description Amount
PP030226 03/02/2026 Business License Overpayment Refund $184.00 1200 - Capital Improvement Fund

40 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 6, 2026
Type Check Totals: $418,019.35
EFT
38 03/02/2026 SIGNATURE RESOLUTION, LLC $36,250.00
Invoice Date Description Amount
PR88426 02/13/2026 Cabrillo Mobile Home Park Arbitration Services $36,250.00 $9,999.98
$26,250.02
39 02/25/2026 03/13/2026 SANTA CRUZ COUNTY BANK $17,264.46 Invoice Date Description Amount
SCCB013126 02/01/2026 January Credit Card Charges $17,264.46 $17,035.15
$148.31
$81.00
Type EFT Totals: $53,514.46
SCCB - SCCB Payroll
Check
7289 03/06/2026 AFLAC $1,336.04
Invoice Date Description Amount
019860 02/20/2026 February supplemental insurance $1,336.04 7290 03/06/2026 BENEFIT COORDINATORS CORP. $6,107.80
Invoice Date Description Amount
B0LV46 02/20/2026 February dental & vision insurance $6,107.80 7291 03/06/2026 CAPITOLA PEACE OFFICERS ASSOCIATION $1,153.00 Invoice Date Description Amount
POA022026 02/20/2026 POA & gym dues PPE 2/14/26 $1,153.00 7292 03/06/2026 LIUNA PENSION FUND $1,164.80
Invoice Date Description Amount
GD0062 02/20/2026 LIUNA pension dues - February $1,164.80 7293 03/06/2026 UNITED WAY OF SANTA CRUZ COUNTY $20.00
Invoice Date Description Amount
UW022826 02/20/2026 February United Way contributions $20.00 1001 - Payroll Payables
1001 - Payroll Payables
1001 - Payroll Payables
1001 - Payroll Payables
1001 - Payroll Payables
1000 - General Fund
1372 - Housing Trust
1000 - General Fund
2210 - ISF - Stores Fund
2211 - ISF - Information Technology

41 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 6, 2026
7294 03/06/2026 UPEC LIUNA LOCAL 792 $840.00
Invoice Date Description Amount
9341 02/20/2026 UPEC dues February $840.00
7295 03/06/2026 US BANK PARS Acct 6746022400 $817.10
Invoice Date Description Amount
PARS022026 02/20/2026 PARS contributions PPE 2/14/26 $817.10 Type Check Totals: $11,438.74
EFT
3245 02/25/2026 03/04/2026 WEX HEALTH INC. $135.00
Invoice Date Description Amount
0002305798-IN 01/31/2026 January COBRA and FSA admin. $135.00 3246 03/02/2026 CalPERS Health Insurance $96,592.59
Invoice Date Description Amount
1003223122 02/17/2026 March health insurance $96,592.59 $4,632.39
$91,960.20
3247 02/24/2026 03/06/2026 CalPERS Member Services Division $68,332.18 Invoice Date Description Amount
1003223055-8 02/20/2026 PERS contributions PPE 2/14/26 $68,332.18 $0.02
$68,332.16
3248 02/23/2026 03/06/2026 EMPLOYMENT DEVELOPMENT DEPARTMENT $11,479.48 Invoice Date Description Amount
1-465-613-904 02/20/2026 State tax PPE 2/14/26 $11,479.48 3249 02/23/2026 03/06/2026 INTERNAL REVENUE SERVICE $35,310.93 Invoice Date Description Amount
92292273 02/20/2026 Federal taxes & Medicare PPE 2/14/26 $35,310.93 1001 - Payroll Payables
1001 - Payroll Payables
1000 - General Fund
1001 - Payroll Payables
1000 - General Fund
1001 - Payroll Payables
1001 - Payroll Payables
1001 - Payroll Payables

42 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 6, 2026
3250 02/23/2026 03/06/2026 STATE DISBURSEMENT UNIT $1,197.67 Invoice Date Description Amount
55608965 02/20/2026 Employee garnishments PPE 2/14/26 $1,197.67 3251 02/23/2026 03/06/2026 VOYA FINANCIAL $10,828.30
Invoice Date Description Amount
VOYA022026 02/20/2026 Employee 457 contributions PPE 2/14/26 $10,828.30 Type EFT Totals: $223,876.15
Checks 44 $418,019.35
EFTs 2 $53,514.46
All 46 $471,533.81
Payroll Totals
Checks 7 $11,438.74
EFTs 116 $436,863.68
All 123 $448,302.42
Grand Totals:

Checks 51 $429,458.09
EFTs 118 $490,378.14
All 169 $919,836.23
1001 - Payroll Payables
1001 - Payroll Payables

43 Item 8 B.
44 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount 106124 03/13/2026 A-LOCKSMITH-CRAIG $195.00
Invoice Date Description Amount
D2337 01/08/2026 Front door lock repair $195.00
106125 03/13/2026 AAA WORKSPACE $982.41
Invoice Date Description Amount
2485530-0 03/04/2026 Copy paper, gloves, liners, paper towels spray bottles, misc sup $879.03 2485504-0 03/03/2026 Labels $7.35
2483645-0 02/24/2026 Printing Paper $96.03
$975.06
$7.35
106126 03/13/2026 ADT SECURITY SERVICES INC. $312.06
Invoice Date Description Amount
ADT030126 03/01/2026 Corp. yard & museum ADT monitoring $312.06 106127 03/13/2026 AJ'S FUEL MARKET OF CAPITOLA INC $132.00 Invoice Date Description Amount
AJ022826 02/28/2026 Carwash Closing Date 2/28/2026 $132.00 106128 03/13/2026 AMAZON CAPITAL SERVICES $1,788.64
Invoice Date Description Amount
1TDG-39WH-XVH9 02/27/2026 Afterschool supplies $71.66
1WRK-194V-F7MV 03/05/2026 Air freshener, memory foam cushion $41.59 1LHF-MHMR-4W6H 03/06/2026 Paint coat, preventive rust coating $707.50 1R76-4Q4F-C97G 03/10/2026 Digital picture frame $78.65
1LFF-3HMN-3JP9 03/04/2026 Paper clips credit return ($13.10) 1F1P-XLP3-K3HC 03/05/2026 Open Water Lifesaving Manual $62.17 1YKQ-D3FQ-HMG6 03/04/2026 Printer Charger and Stylus Pens $166.26 1T7V-P4MF-9Q1X 02/24/2026 Hard Drives $229.38
16N9-NYLX-7JJG 03/06/2026 Duty Boots $427.83
1LHR-NGLL-G4MK 03/11/2026 Threaded rods $16.70
106129 03/13/2026 AMERICAN RED CROSS TRAINING SERVICES $1,542.00 Invoice Date Description Amount
23075062 01/14/2026 First aid, CPR training $42.00
23097825 01/21/2026 First aid, CPR training $1,500.00
106130 03/13/2026 AMERICAN TRAFFIC SOLUTIONS INC. $8,745.39 Invoice Date Description Amount
INV0118251 02/28/2026 1st Half of FY25/26 Red Light Revenue $8,745.39 City of Capitola
City Checks Issued March 13, 2026
1000 - General Fund
2210 - ISF - Stores Fund

45 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106131 03/13/2026 APTOS LANDSCAPE SUPPLY INC. $140.04
Invoice Date Description Amount
673966 02/23/2026 Pacific Peagravel $53.53
674118 02/26/2026 Walk on bark $86.51
106132 03/13/2026 AT&T $8.79
Invoice Date Description Amount
ATT030126 03/01/2026 March long distance charges $8.79
$4.33
$4.46
106133 03/13/2026 AUTO CARE LIFESAVER TOWING $360.00
Invoice Date Description Amount
26-94396 03/02/2026 Street Sweeper towing $360.00
106134 03/13/2026 B & B SMALL ENGINE REPAIR $153.22
Invoice Date Description Amount
91476 03/11/2026 Cinch trap, trimmer line $153.22
106135 03/13/2026 BAYSIDE OIL II INC. $2,026.91
Invoice Date Description Amount
59921 02/13/2026 Oil disposal, anti freeze disposal $150.00 59676 02/21/2026 Hydrolic oil $1,041.15
60070 02/27/2026 Oil (drum) $835.76
106136 03/13/2026 BOWMAN & WILLIAMS INC. $4,608.00
Invoice Date Description Amount
19764 02/13/2026 Escalona ROW Parcelization & Easements $4,608.00 106137 03/13/2026 BRANTLY SANDRETTI $1,000.00
Invoice Date Description Amount
BS021726 02/17/2026 Education reimbursement $1,000.00
106138 03/13/2026 BURKE WILLIAMS AND SORENSEN LLP $23,218.94 Invoice Date Description Amount
361397 02/25/2026 January City Attorney Legal Services $9,553.94 361396 02/25/2026 January Labor and Employment Legal Services $3,993.00 361400 02/25/2026 January Parks and Recreation Legal Services $1,560.00 361401 02/25/2026 January Police Legal Services $2,730.00 361402 02/25/2026 January Public Works Legal Services $5,382.00 1000 - General Fund
2211 - ISF - Information Technology
1310 - Gas Tax

46 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106139 03/13/2026 CA DEPARTMENT OF JUSTICE $196.00
Invoice Date Description Amount
029976 03/04/2026 February fingerprinting $98.00
023076 02/05/2026 January fingerprinting $98.00
106140 03/13/2026 CALE AMERICA INC. $983.64
Invoice Date Description Amount
189574 02/26/2026 February 2026 Active Meters $983.64
106141 03/13/2026 CALIFORNIA COAST UNIFORM COMPANY $1,617.08 Invoice Date Description Amount
113984 02/23/2026 Class A Jackets $1,263.08
113995 03/01/2026 Tailoring Charges $354.00
106142 03/13/2026 CARIN HANNA $250.00
Invoice Date Description Amount
CH030126 03/01/2026 Sip & Stroll Stipend $250.00
106143 03/13/2026 CINTAS CORPORATION $245.56
Invoice Date Description Amount
5320774002 02/26/2026 First Aid Replenishment $245.56
106144 03/13/2026 COMMUNITY PRINTERS $111.80
Invoice Date Description Amount
45159011 02/17/2026 Hotel Capitola Banner $111.80
106145 03/13/2026 CORODATA RECORDS MANAGEMENT, INC. $233.63 Invoice Date Description Amount
RS3774380 02/28/2026 February records management $233.63 106146 03/13/2026 CRAIG FEENEY $410.00
Invoice Date Description Amount
200 02/26/2026 Community room electrical & Opal cliffs restroom inspection $410.00 106147 03/13/2026 CROSSROADS SOFTWARE INC $25,400.00
Invoice Date Description Amount
7894 02/12/2026 eCitation System Software $25,400.00
1321 - BIA - Capitola Village-Wharf BIA
1300 - SLESF - Supl Law Enfc

47 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106148 03/13/2026 CSW-STUBER-STROEH ENGINEERING GROUP INC $10,707.65 Invoice Date Description Amount
2602125 02/28/2026 Cliff Drive Resiliency Project Services thru 1.31.26 $10,707.65 106149 03/13/2026 CUMMING MANAGEMENT GROUP, INC. $22,335.00 Invoice Date Description Amount
186069 02/28/2026 Community Center Construction Management Services $11,260.00 186070 02/28/2026 CDBG Funded Construction Management Services $11,075.00 106150 03/13/2026 D & G SANITATION $2,240.82
Invoice Date Description Amount
318816 02/28/2026 Jade st. park hand wash station rental $1,035.28 318815 02/28/2026 Skate park hand wash station, portable toilets $504.93 318817 02/28/2026 Wharf portable toilets $700.61
$1,540.21
$700.61
106151 03/13/2026 DOCTORS ON DUTY $225.00
Invoice Date Description Amount
DOD030426 03/04/2026 New employee testing & exams $225.00 106152 03/13/2026 EAST BAY TIRE CO. $626.98
Invoice Date Description Amount
2219394 03/05/2026 Tires $313.49
282945 02/27/2026 Tires $313.49
106153 03/13/2026 ECOLOGY ACTION OF SANTA CRUZ $6,989.77 Invoice Date Description Amount
69007 02/28/2026 Capitola Active Transportation Plan thru 2.28.26 $6,989.77 106154 03/13/2026 ELEVATOR SERVICE COMPANY INC. $220.00 Invoice Date Description Amount
55544 03/01/2026 Quarterly lube and inspection $220.00
106155 03/13/2026 ESMERALDA GONZALEZ $420.32
Invoice Date Description Amount
EG022726 02/27/2026 CSMFO Conference Travel Reimbursement $420.32 1311 - Wharf
1200 - Capital Improvement Fund
1200 - Capital Improvement Fund
1200 - Capital Improvement Fund
1000 - General Fund

48 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106156 03/13/2026 EXCEEDIO $185.00
Invoice Date Description Amount
18683 02/28/2026 IT Services FY25/26 $185.00
106157 03/13/2026 EXECUTIVE FACILITIES SERVICES, INC. $83.78 Invoice Date Description Amount
37113 03/05/2026 City Hall Extra Janitorial Services $83.78 106158 03/13/2026 FLYERS ENERGY LLC $2,625.20
Invoice Date Description Amount
CFS-4535934 02/28/2026 Card processing $157.74
26-589417 03/04/2026 540 gallons gasoline $2,467.46
106159 03/13/2026 GALLS LLC $52.45
Invoice Date Description Amount
034136324 02/19/2026 Mens Caliber Pique Polo $52.45
106160 03/13/2026 GEORGE H WILSON INC. $777.00
Invoice Date Description Amount
20754787 10/23/2025 Opal Cliffs School repairs $777.00
106161 03/13/2026 GLASS TECH $2,508.54
Invoice Date Description Amount
0154852-IN 02/02/2026 Wine glasses $2,508.54
106162 03/13/2026 GRAINGER $955.36
Invoice Date Description Amount
9652789679 09/24/2025 Hi-Vis Jackets Credit memo ($1,932.36) 9818417256 02/23/2026 Remote Fuel dispenser $2,312.68
9810828740 02/17/2026 Electronic timer $181.87
9806724200 02/12/2026 Composite, urinal strainers $225.50 9804843580 02/11/2026 Steel duct $167.67
106163 03/13/2026 GREEN HALO SYSTEMS INC $200.00
Invoice Date Description Amount
6355 03/02/2026 Waste Management Monthly Hosting $200.00 106164 03/13/2026 HASCO STATIONS, LLC $17.00
Invoice Date Description Amount
HCL-054607-26 02/28/2026 Carwash Closing Date 2/28/2026 $17.00 2211 - ISF - Information Technology
1321 - BIA - Capitola Village-Wharf BIA
1314 - Green Building Education

49 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106165 03/13/2026 HD SUPPLY FORMERLY HOME DEPOT PRO $610.49 Invoice Date Description Amount
9246172919 02/20/2026 Cleaning supplies, odor absorber $344.09 9245444885 02/01/2026 Hand soap refills $266.40
106166 03/13/2026 HINDERLITER DELLAMAS AND ASSOCIATES $1,486.24 Invoice Date Description Amount
SIN059897 01/31/2026 January TOT and STR admin fees $1,486.24 106167 03/13/2026 HOLIDAY SMOG $143.50
Invoice Date Description Amount
87591 03/05/2026 Smog inspection 1999 F150 $71.75
87600 03/05/2026 Smog inspection 1997 F550 $71.75
106168 03/13/2026 HOME DEPOT CREDIT SERVICES $1,920.32
Invoice Date Description Amount
6614444 02/19/2026 PVC pipes and tees $33.77
9615663 02/26/2026 Vertical rail, threaded rod, glove, PVC tees, riser, PVC bushing $73.80 1510185 02/24/2026 Plugs, couplers, gloves, pipe, dowel, lumber $83.73 1510268 02/24/2026 Adhesive, zinc rods, framing anchors, brush, lumber $59.03 4640893 03/03/2026 patio cover, microfiber rolls, couplings, zinc rods, brackets $139.73 8514830 02/17/2026 Joint tape, joint compound, drywall repair panel $23.98 7640309 02/18/2026 Threadlocker $18.59
3622106 02/12/2026 Concrete mix $98.22
3520807 03/04/2026 Steel post $45.79
4520619 03/03/2026 Utility knives, couplings, PC emitter, tubing $45.50 6524937 02/19/2026 Markers, work gloves, impact bit set $48.97 1624594 02/24/2026 Kneeling pad, bucket, ball valves, shut off valve $96.50 3622057 02/12/2026 Brushes, kneeling pad $30.50
4523554 02/11/2026 Tubing cutter, ratchet wrench set $118.19 5612866 02/10/2026 Comet cleanser, wastebasket $67.71
0283398 02/25/2026 Queen palms (2) $153.26
3014398 02/12/2026 Lumber, sanding sponges, lube, pencils $37.75 5614132 02/10/2026 Epoxy, bucket $43.74
7036296 02/18/2026 Air hose, coupler kit, pipe, coupling, tire gauge, wrench $103.03 7614278 02/18/2026 Lumber, screws, paint, nails $40.27
5036613 02/20/2026 Solid screen, gorilla tape $24.19
2624410 02/23/2026 Picture hanging strips, poster strips $87.42 9037476 02/26/2026 Duct tape, poster strips, solid screen $55.40 5610282 03/02/2026 Glue, picture hanging strips, command strips $136.32 3520876 03/04/2026 Picture hanging strips $51.14
4520617 03/03/2026 Picture hanging strips, LED lights $83.82 0521413 03/07/2026 Picture hanging strips $65.60
7522002 03/10/2026 Picture hanging strips $54.37

50 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106169 03/13/2026 IN-SITU Inc. $480.00
Invoice Date Description Amount
INV124026 03/04/2026 Enterprise Cellular $480.00
106170 03/13/2026 JAIME PONCIANO $327.32
Invoice Date Description Amount
JP022726 02/27/2026 Motorcycle Training Travel Reimbursement (POST) $327.32 106171 03/13/2026 KARIN ANDERSON $700.00
Invoice Date Description Amount
23 03/01/2026 BIA Ambassador $700.00
106172 03/13/2026 KBA Document Solutions LLC $12.22
Invoice Date Description Amount
55Y1589190 03/03/2026 City Hall copier usage charges $12.22 106173 03/13/2026 KEYSER MARSTON ASSOCIATES, INC. $1,162.50 Invoice Date Description Amount
0040467 02/06/2026 Economic Development Services through 1.31.26 $627.50 0040365 01/08/2026 Economic Development Services through 12.31.25 $535.00 106174 03/13/2026 KIMLEY HORN AND ASSOCIATES INC $736.78 Invoice Date Description Amount
34666657 01/31/2026 41st Avenue Traffic Analysis $736.78 106175 03/13/2026 LABORMAX STAFFING $840.24
Invoice Date Description Amount
26-491628 03/06/2026 Public works seasonal labor 3/3 - 3/6/26 $840.24 106176 03/13/2026 LAURA ALIOTO $506.25
Invoice Date Description Amount
LA030226 03/02/2026 Instructor payment $506.25
106177 03/13/2026 LAW ENFORCEMENT PSYCHOLOGICAL SERVICES INC. $475.00 Invoice Date Description Amount
35565 01/31/2026 Police Officer Candidate Psychological Evaluation $475.00 1313 - General Plan Update and Maint
1321 - BIA - Capitola Village-Wharf BIA
2211 - ISF - Information Technology

51 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106178 03/13/2026 MARY MCGLENN CAHALEN $1,500.00
Invoice Date Description Amount
MB02-21-26BIA 02/21/2026 Capitola Sip & Stroll Coordinator Services $1,500.00 106179 03/13/2026 METRO MOBILE COMMUNICATIONS $2,286.34 Invoice Date Description Amount
50728 01/09/2026 MC Modular Helmet and Headset Kit $2,286.34 106180 03/13/2026 MISSION LINEN SUPPLY $417.51
Invoice Date Description Amount
525583096 03/02/2026 Community Center mop and mat service $78.64 525610639 03/04/2026 Fleet towels, uniform cleaning $80.97 525610640 03/04/2026 Corp. Yard linen service $101.85
525651265 03/11/2026 Corp. Yard linen service $94.19
525651264 03/11/2026 Fleet towels, uniform cleaning $61.86 106181 03/13/2026 MOTOR SQUAD TRAINING INSTITUTE $2,100.00 Invoice Date Description Amount
26-015-001 02/15/2026 527 Basic Motorcycle Course $2,100.00 106182 03/13/2026 NORTH BAY FORD $550.00
Invoice Date Description Amount
395298 03/04/2026 Program keys for 2023 Mach E (VIN17503) $275.00 395170 02/26/2026 Engine performance testing and programming $275.00 106183 03/13/2026 O'REILLY AUTO PARTS $565.88
Invoice Date Description Amount
2763-186083 02/23/2026 Oil filter $11.56
2763-186667 02/26/2026 Ignition coil $37.21
2763-186460 02/25/2026 Oil filters $17.55
2763-186249 02/24/2026 TPMS sensor $129.71
2763-186250 02/24/2026 Coin batteries $50.21
2763-187633 03/02/2026 Brake rotor, brake pads $158.40
2763-187844 03/03/2026 Fuse holders $30.56
2763-187653 03/02/2026 Cleaner, dirt buster, wash & wax $95.32 2763-188040 03/04/2026 Fuel treatment $35.36
1321 - BIA - Capitola Village-Wharf BIA

52 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106184 03/13/2026 OUTDOOR SUPPLY HARDWARE $923.58
Invoice Date Description Amount
932 03/02/2026 Bulk fasteners $47.06
890 02/10/2026 Storage cover $46.97
935 03/03/2026 Dandelion weeder $38.23
909 02/18/2026 LED flashlight $21.84
907 02/18/2026 Paint mixer, cobalt bit $26.20
896 02/11/2026 Garden hose, ratcheting wrenches $138.94 912 02/20/2026 Garden hose $49.14
900 02/12/2026 Wire $38.35
926 02/26/2026 LED bulb $19.65
927 02/26/2026 Bucket, tape, scissors, wire, step stool, shears, gloves, misc $251.86 936 03/03/2026 Post, tape, wire $55.65
937 03/03/2026 Drill bits, bucket, file, washers, hex nuts, rods, misc $87.39 906 02/17/2026 Bulk fasteners, spray paint $88.02
914 02/20/2026 Bulk Fasteners $14.28
106185 03/13/2026 ROBERT M PATTERSON $100.00
Invoice Date Description Amount
RP030126 03/01/2026 Administrative Reviews Billing Statement 3/1/2026 $100.00 106186 03/13/2026 ROBIN H EVEREST $81.90
Invoice Date Description Amount
RE030226 03/02/2026 Instructor payment $81.90
106187 03/13/2026 SAN LORENZO LUMBER $477.42
Invoice Date Description Amount
55-1016218 02/25/2026 Ceiling fan credit return ($101.82) 56-0151337 03/03/2026 Ornamentals, plating mix $316.87
55-1018559 03/05/2026 Wire rope $3.50
55-1019287 03/10/2026 Wrench combos, desckforce, plywood $258.87 106188 03/13/2026 SANTA CRUZ AUTO PARTS INC. $312.51
Invoice Date Description Amount
537193 02/18/2026 Mix $312.51
106189 03/13/2026 SANTA CRUZ COUNTY AUDITOR-CONTROLLER $9,325.50 Invoice Date Description Amount
SCCO030426 03/04/2026 February citation processing $9,325.50

53 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106190 03/13/2026 SANTA CRUZ SENTINEL $707.20
Invoice Date Description Amount
0001467219 02/28/2026 February legal notices $707.20
106191 03/13/2026 SAVE OUR SHORES $1,498.00
Invoice Date Description Amount
2026-172 03/05/2026 Beach Cleanup FY25/26 $1,498.00
106192 03/13/2026 SECOND HARVEST FOOD BANK $40,022.03
Invoice Date Description Amount
SHFB123125 12/31/2025 24-CDBG-NH-10001-A3 Jul - Dec $40,022.03 106193 03/13/2026 SECURITY CRIME PREVENTION CORP $2,800.00 Invoice Date Description Amount
4332 02/28/2026 February 2026 Site Lockup and Walk Through $2,800.00 106194 03/13/2026 SERVPRO OF PALO ALTO $861.40
Invoice Date Description Amount
5912 03/09/2026 Bio Remediation for 211 on 3/5/2026 $861.40 106195 03/13/2026 SOQUEL CREEK WATER DISTRICT $389.24
Invoice Date Description Amount
06-14476-0021726 02/17/2026 06-14476-00 430 Kennedy Drive water service $53.15 08-15562-0021726 02/17/2026 08-15562-00 Cliff and Fairview water service $0.82 09-15964-0021726 02/17/2026 09-15964-00 Monterey Ave. Esplanade water $286.60 10-16315-0021726 02/17/2026 10-16315-00 504 Beulah Dr. water $33.46 10-16316-0021726 02/17/2026 10-16316-00 426 Capitola Ave. water $15.21 106196 03/13/2026 SPECTRUM BUSINESS $2,353.13
Invoice Date Description Amount
257413201030126 03/01/2026 March internet service $1,679.15 170005701022126 02/21/2026 March internet service $673.98 $911.96
$1,441.17
106197 03/13/2026 SPORTS DESIGN, INC. $761.03
Invoice Date Description Amount
29373 03/02/2026 Capitola lifeguard hats $761.03
106198 03/13/2026 SSA LANDSCAPE ARCHITECTS INC $7,256.06 Invoice Date Description Amount
8425 01/26/2026 Grand Ave Pathway Landscape Services through 1.25.26 $441.28 8437 02/26/2026 Grand Ave Pathway Landscape Services through 2.25.26 $6,814.78 1350 - CDBG Grants
1000 - General Fund
2211 - ISF - Information Technology

54 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106199 03/13/2026 SUMMIT UNIFORMS $1,179.07
Invoice Date Description Amount
38171 02/20/2026 566 Uniforms and Tailoring Charges $1,045.63 38872 03/04/2026 R-Flex Baseball Hat $26.25
38871 03/04/2026 Uniform Shirt $107.19
106200 03/13/2026 SWA GROUP INC $14,937.95
Invoice Date Description Amount
207872 02/13/2026 41st Avenue Corridor Study thru 1.31.26 $14,937.95 106201 03/13/2026 THE ED. JONES COMPANY $335.74
Invoice Date Description Amount
59914 10/07/2025 K9 Police Badge $335.74
106202 03/13/2026 TPX COMMUNICATIONS $2,129.15
Invoice Date Description Amount
189503117-0 02/23/2026 February phone service $2,129.15 $1,102.91
$1,026.24
106203 03/13/2026 US BANK EQUIPMENT FINANCE $385.23
Invoice Date Description Amount
576976302 03/04/2026 Recreation copier lease $179.90
577032253 03/05/2026 PD copier lease $205.33
106204 03/13/2026 VERDE DESIGN INC $19,540.00
Invoice Date Description Amount
8-2300302 03/11/2026 Jade St Park - universally accessible playground design $19,540.00 106205 03/13/2026 WESTERN EXTERMINATOR COMPANY $110.21
Invoice Date Description Amount
92742272 03/05/2026 Turnouts rodent control $110.21
106206 03/13/2026 37TH PARALLEL $250.00
Invoice Date Description Amount
37P030126 03/01/2026 Sip & Stroll Stipend $250.00
106207 03/13/2026 3PS VINEYARDS $250.00
Invoice Date Description Amount
3PS030126 03/01/2026 Sip & Stroll Stipend $250.00
1000 - General Fund
1313 - General Plan Update and Maint
2211 - ISF - Information Technology
1200 - Capital Improvement Fund
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA

55 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106208 03/13/2026 ALFARO $250.00
Invoice Date Description Amount
AL030126 03/01/2026 Sip & Stroll Stipend $250.00
106209 03/13/2026 Allyn, Natalie $594.00
Invoice Date Description Amount
NA030526 03/05/2026 Citation # 250254 $594.00
106210 03/13/2026 ANATUM WINES $250.00
Invoice Date Description Amount
AW030126 03/01/2026 Sip & Stroll Stipend $250.00
106211 03/13/2026 Andrade, Alicia $25.00
Invoice Date Description Amount
AA030526 03/05/2026 Citation # 504123662 $25.00
106212 03/13/2026 BARGETTO $250.00
Invoice Date Description Amount
BA030126 03/01/2026 Sip & Stroll Stipend $250.00
106213 03/13/2026 BIG BASIN WINERY $250.00
Invoice Date Description Amount
BB030126 03/01/2026 Sip & Stroll Stipend $250.00
106214 03/13/2026 BLADE AND TALON $250.00
Invoice Date Description Amount
BT030126 03/01/2026 Sip & Stroll Stipend $250.00
106215 03/13/2026 BOTTLE JACK $250.00
Invoice Date Description Amount
BJ030126 03/01/2026 Sip & Stroll Stipend $250.00
106216 03/13/2026 Brancatelli, Lisa $72.00
Invoice Date Description Amount
LB030526 03/05/2026 Citation # 900131099 $72.00
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA

56 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106217 03/13/2026 BURRELL SCHOOL $250.00
Invoice Date Description Amount
BS030126 03/01/2026 Sip & Stroll Stipend $250.00
106218 03/13/2026 CAPITOLA CANDY $250.00
Invoice Date Description Amount
CC030126 03/01/2026 Sip & Stroll Stipend $250.00
106219 03/13/2026 CHAUCERS $250.00
Invoice Date Description Amount
CH030126 03/01/2026 Sip & Stroll Stipend $250.00
106220 03/13/2026 CORDVALLE WINERY $250.00
Invoice Date Description Amount
CW030126 03/01/2026 Sip & Stroll Stipend $250.00
106221 03/13/2026 Cuauhtlerojas, Mario $96.00
Invoice Date Description Amount
MC030526 03/05/2026 Citation # 503125236 $96.00
106222 03/13/2026 DEVON SALTER $250.00
Invoice Date Description Amount
DS030126 03/01/2026 Sip & Stroll Stipend $250.00
106223 03/13/2026 Downs, Jesse $96.00
Invoice Date Description Amount
JD030526 03/05/2026 Citation # 501127829 $96.00
106224 03/13/2026 Downs, Nathan $156.00
Invoice Date Description Amount
ND030526 03/05/2026 Citation #'s 544127662 & 544127645 $156.00 106225 03/13/2026 GALI $250.00
Invoice Date Description Amount
GA030126 03/01/2026 Sip & Stroll Stipend $250.00
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA

57 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106226 03/13/2026 Golbeck, Julia $96.00
Invoice Date Description Amount
JG030526 03/05/2026 Citation # 503125286 $96.00
106227 03/13/2026 Goodwin, David $65.00
Invoice Date Description Amount
DG031126 03/11/2026 Citation # 508123929 $65.00
106228 03/13/2026 Gorden, Kea $72.00
Invoice Date Description Amount
KG030526 03/05/2026 Citation # 900131168 $72.00
106229 03/13/2026 Hall, Patricia $65.00
Invoice Date Description Amount
PH030426 03/04/2026 Citation # 508123776 $65.00
106230 03/13/2026 JUAN MANUEL GARCIA $1,674.00
Invoice Date Description Amount
JMG030226 03/02/2026 #25-0540 1855 41st Avenue CUP Alcohol PCR Refund $1,674.00 106231 03/13/2026 Juarez, Elizabeth $72.00
Invoice Date Description Amount
EJ030526 03/05/2026 Citation # 544126311 $72.00
106232 03/13/2026 KINGS MOUNTAIN $250.00
Invoice Date Description Amount
KM030126 03/01/2026 Sip & Stroll Stipend $250.00
106233 03/13/2026 KISSED BY THE ANGEL $250.00
Invoice Date Description Amount
KA030126 03/01/2026 Sip & Stroll Stipend $250.00
106234 03/13/2026 LAGO LOMITA VINEYARDS $250.00
Invoice Date Description Amount
LL030126 03/01/2026 Sip & Stroll Stipend $250.00
106235 03/13/2026 Lee, Michelle $96.00
Invoice Date Description Amount
ML030526 03/05/2026 Citation # 503123974 $96.00
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA

58 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106236 03/13/2026 LLAMA WINES $500.00
Invoice Date Description Amount
LW030126 03/01/2026 Sip & Stroll Stipend $500.00
106237 03/13/2026 Mahurin, Lisa $72.00
Invoice Date Description Amount
LM030526 03/05/2026 Citation # 900129141 $72.00
106238 03/13/2026 MARTIN RANCH $250.00
Invoice Date Description Amount
MR030126 03/01/2026 Sip & Stroll Stipend $250.00
106239 03/13/2026 Maselli, Jeff $65.00
Invoice Date Description Amount
JM030526 03/05/2026 Citation # 508123855 $65.00
106240 03/13/2026 McAusland, Matthew $72.00
Invoice Date Description Amount
MM030526 03/05/2026 Citation # 900131024 $72.00
106241 03/13/2026 Miller, Brenda $10.00
Invoice Date Description Amount
BM030526 03/05/2026 Citation # 501128862 $10.00
106242 03/13/2026 MJA VINEYARDS $250.00
Invoice Date Description Amount
MJA030126 03/01/2026 Sip & Stroll Stipend $250.00
106243 03/13/2026 Norton, Dennis $65.00
Invoice Date Description Amount
DN030526 03/05/2026 Citation # 508124161 $65.00
106244 03/13/2026 PELICAN RANCH $250.00
Invoice Date Description Amount
PR030126 03/01/2026 Sip & Stroll Stipend $250.00
106245 03/13/2026 Pham, Doi $76.00
Invoice Date Description Amount
DP030526 03/05/2026 Citation # 501127045 $76.00
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA

59 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106246 03/13/2026 ROSSCIENDA VINEYARDS $250.00
Invoice Date Description Amount
RV030126 03/01/2026 Sip & Stroll Stipend $250.00
106247 03/13/2026 Rossiyoung, Dov Franklin $96.00
Invoice Date Description Amount
DR030526 03/05/2026 Citation # 507123934 $96.00
106248 03/13/2026 Sanchez, Moises $96.00
Invoice Date Description Amount
MS030526 03/05/2026 Citation # 400125956 $96.00
106249 03/13/2026 SER $250.00
Invoice Date Description Amount
SER030126 03/01/2026 Sip & Stroll Stipend $250.00
106250 03/13/2026 Sewell, Adam $72.00
Invoice Date Description Amount
AG030526 03/05/2026 Citation # 503124239 $72.00
106251 03/13/2026 Shirley, Jay $45.95
Invoice Date Description Amount
JS030526 03/05/2026 Citation # 503124603 $45.95
106252 03/13/2026 Siddiqua, Ayesha $62.00
Invoice Date Description Amount
AL030526 03/05/2026 Citation # 506123763 $62.00
106253 03/13/2026 Silva, Angel $68.71
Invoice Date Description Amount
AC030526 03/05/2026 Citation # 702129876 $68.71
106254 03/13/2026 SONES CELLARS $250.00
Invoice Date Description Amount
SC030126 03/01/2026 Sip & Stroll Stipend $250.00
106255 03/13/2026 Soto, Erlinda $50.00
Invoice Date Description Amount
ES030526 03/05/2026 Citation # 511123456 $50.00
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA

60 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
106256 03/13/2026 WARGIN WINERY $250.00
Invoice Date Description Amount
WW030126 03/01/2026 Sip & Stroll Stipend $250.00
106257 03/13/2026 WINDY OAKS WINERY $250.00
Invoice Date Description Amount
WO030126 03/01/2026 Sip & Stroll Stipend $250.00
106258 03/13/2026 SANTA CRUZ ARMORY, INC. $1,528.55
Invoice Date Description Amount
504438 12/19/2025 Pick-up, Disposal, and Recycle of Property Items $1,528.55 Type Check Totals: $261,446.13
SCCB - SCCB Payroll
Check
7297 03/13/2026 CAPITOLA PEACE OFFICERS ASSOCIATION $1,170.50 Invoice Date Description Amount
POA030626 03/06/2026 POA & Gym Dues PPE 02/28/26 $1,170.50 7298 03/13/2026 EQUITABLE $3,313.20
Invoice Date Description Amount
1846217 02/11/2026 March LTD, STD, AD&D, life insurance $3,313.20 7299 03/13/2026 UPEC LIUNA LOCAL 792 $787.50
Invoice Date Description Amount
9430 03/06/2026 UPEC Dues March $787.50
7300 03/13/2026 US BANK PARS Acct 6746022400 $856.61
Invoice Date Description Amount
PARS030626 03/06/2026 PARS Contributions PPE 02/28/26 $856.61 Type Check Totals: $6,127.81
EFT
3361 03/09/2026 EMPLOYMENT DEVELOPMENT DEPARTMENT $12,132.73 Invoice Date Description Amount
1-966-596-432 03/06/2026 State taxes PPE 2-28-26 $12,132.73 1001 - Payroll Payables
1001 - Payroll Payables
1321 - BIA - Capitola Village-Wharf BIA
1321 - BIA - Capitola Village-Wharf BIA
1001 - Payroll Payables
1001 - Payroll Payables
1001 - Payroll Payables

61 Item 8 B.

Check
Number Invoice Number Invoice Date Description Payee Name Transaction Amount City of Capitola
City Checks Issued March 13, 2026
3362 03/09/2026 INTERNAL REVENUE SERVICE $37,230.04
Invoice Date Description Amount
4133156 03/06/2026 Federal taxes & Medicare PPE 2-28-26 $37,230.04 3363 03/09/2026 STATE DISBURSEMENT UNIT $1,197.67
Invoice Date Description Amount
55781945 03/06/2026 Employee Garnishments PPE 2/28/26 $1,197.67 3364 03/09/2026 CalPERS Member Services Division $68,108.39 Invoice Date Description Amount
1003238453-6 03/06/2026 PERS Contributions PPE 02/28/26 $68,108.39 ($0.01)
$68,108.40
3365 03/09/2026 VOYA FINANCIAL $10,956.84
Invoice Date Description Amount
VOYA030626 03/06/2026 Employee 457 Contributions PPE 02/28/26 $10,956.84 Type EFT Totals: $129,625.67
Checks 135 $261,446.13
EFTs 0 $0.00
All 135 $261,446.13
Payroll Totals
Checks 5 $24,375.43
EFTs 5 $129,625.67
All 10 $154,001.10
Grand Totals:

Checks 140 $285,821.56
EFTs 5 $129,625.67
All 145 $415,447.23
1001 - Payroll Payables
1000 - General Fund
1001 - Payroll Payables
1001 - Payroll Payables
1001 - Payroll Payables

62 Item 8 B.

Capitola City Council
Agenda Report
Meeting: April 9, 2026
From: City Manager Department
Subject: Use Agreements for Capitola City Hall Council Community Room Recommended Action: Authorize the City Manager to execute a no-cost agreement with the Capitola Beach Festival for use of the City Hall Community Room for the next three years.

Background: The Capitola Beach Festival, a registered nonprofit organization, has coordinated its namesake event since 2019. The signature community event serves as the successor to the Begonia Festival. As a designated City partner, the Beach Festival nonprofit typically receives annual funding from the City Council. The scale and complexity of the event require extensive year-round planning, which the organization primarily conducts within the Capitola City Hall Community Room.

The Community Room is a multi-use space essential to City operations, hosting mandated advisory body meetings, staff training, staff meetings, and overflow for City Council and Planning Commission meetings.

When not in use for City business, the room is available to partner agencies, local businesses, and community groups at no cost.

Due to high demand, the City currently limits reservations to a three-month rolling window via an online management system. This administrative process requires approximately five hours of staff time per month across three staff members to coordinate schedules, minimize conflicting reservations, and ensure the room remains available for high-priority City functions.

The Capitola Beach Festival has expressed a need for consistent, long-term access to the Community Room to facilitate planning efforts over the next several years. To accommodate this, the organization has requested the ability to secure recurring reservations beyond the standard three-month limit.

Discussion: Staff recommends establishing a formalized use agreement with the Capitola Beach Festival nonprofit organization. This agreement would grant the organizations the necessary scheduling flexibility to ensure successful event execution while reducing the monthly administrative burden of manual booking. In January 2026, City Council approved a similar agreement with the Capitola Village and Wharf Business Improvement Area.

Fiscal Impact: None. The Community Room is currently available free of charge.

Alignment with 2025-2029 Strategic Plan Priority: Accountable Government; Economic Opportunity; Sustainable Infrastructure
Attachments:

1. Proposed Use Agreement – Beach Festival
Report Prepared By: Chloé Woodmansee, Assistant to the City Manager Reviewed By: Julia Gautho, City Clerk
Approved By: Jamie Goldstein, City Manager
63 Item 8 C.

FACILITY USE AGREEMENT

BETWEEN THE CITY OF CAPITOLA AND CAPITOLA BEACH FESTIVAL THIS FACILITY USE AGREEMENT ("Agreement") dated April 9, 2026, ("Effective Date") is made and entered into by and between the City of Capitola, a municipal corporation, ("City"), and the Capitola Beach Festival Association ("Beach Festival"). City and Beach Festival are sometimes referred to herein individually as a "Party" and collectively as the "Parties."

RECITALS
A. WHEREAS, City is the owner of real property located at 420 Capitola Avenue, Capitola, California 95010, in the County of Santa Cruz, State of California (the "Premises").

B. WHEREAS, Beach Festival is in need of a reliable meeting room to conduct regular meetings to plan and execute the Capitola Beach Festival special event; and C. WHEREAS, it is the intent of the City to make its Community Room ("Facilities"), located within the Premises, available for use by the Beach Festival when not needed for City related business.

D. WHEREAS, the City Council finds that Beach Festival provides essential family and youth services and events that benefit the residents of the City; and E. WHEREAS, the City Council has determined that providing space for planning these services and events serves a substantial public purpose.

NOW, THEREFORE, with regard to the above recitals and for good and sufficient consideration, the adequacy of which is hereby acknowledged, the Parties agree to the following:

AGREEMENT

1. Term. The term ("Term") of this Agreement shall run for three (3) years from the Effective Date set forth above, and will automatically renew for subsequent one (1) year periods unless terminated in accordance with section 2 of this Agreement.

2. Termination. Either Party may terminate this Agreement for any reason by ninety (90) days' advance written notice. If any actions by Beach Festival are creating a hazard or causing damage to the facilities, City may terminate this Agreement immediately. If the City Council adopts fees for the use of the Community Room during the term of this Agreement, the Agreement will automatically be terminated.

3. Fees, Costs, and Charges. None. In lieu of market-rate rent, Beach Festival will provide festival planning related services and the Capitola Beach Festival event to the public at no or low cost. The parties agree that the fair market value of these services meets or exceeds the value of the use of the Premises, and thus constitutes full and adequate consideration for this Lease.
64 Item 8 C.

4. Beach Festival’s Use of City's Premises.
a. City will make available to Beach Festival the Facilities for the purpose of conducting Beach Festival Meetings ("Meetings") on the second Monday of each month, plus the fourth Monday of
September, from 6:30 p.m. until the conclusion of the meeting. If a conflict arises wherein the City needs to use the Facilities at the same time as the Beach Festival is scheduled to use the Facilities, City will have priority in using the Facilities. City agrees to provide the Beach Festival as much notice as practically possible so that the Beach Festival may notify its members of the change in venue in a timely manner. The organization may request use of the Facilities on other dates and times as needed, and the City may approve or deny such requests in its discretion. If the request is approved, City and Beach Festival agree that no further payment obligations will arise unless by separate agreement of the Parties. The Beach Festival may further use the Facilities for special meetings based on availability.
b. City shall pay for all water, gas, electricity, light, heat, telephone, power, and other utilities and communications services for the Premises during the Term of this Agreement.
c. City will provide Beach Festival a code to access the Facilities prior to the first meeting in May 2026.
d. During its use of the Facilities, Beach Festival shall maintain the Facilities in a lawful, fully operable, safe, neat, clean, and sanitary condition, free from waste and debris. Beach Festival shall not permit any waste or nuisance in or about the Facilities, nor store materials hazardous to health or safety of the public, nor shall Beach Festival permit the use of the Facilities for any illegal purposes at all times during the Term of this Agreement. After the conclusion of each Meeting, Beach Festival shall return the Facilities to the condition it was in prior to when the Meeting began.
e. Should Beach Festival not maintain Facilities in a fully operable, safe, neat, clean, and sanitary condition, free from waste and debris, the City shall be entitled to additional payments from the Beach Festival to recover costs necessary to return the property to fully operable, safe, neat, clean, and sanitary condition, free from waste and debris. Such costs shall be determined at City's sole discretion. f. The Beach Festival acknowledges this agreement does not include City staff/technical assistance to help set up or troubleshoot issues prior to or during meetings.
65 Item 8 C.

g. Beach Festival shall report any personal injuries or property damage arising at any time during, and/or in any way connected with, Beach Festival's use or occupancy of the Facilities to City staff in writing and as soon as practicable.
h. City will make available the following equipment and services for each Board Meeting:
i. Tables,
ii. Chairs, and
iii. Television

5. Indemnification. Beach Festival shall indemnify, defend, and hold harmless City and its officers, employees, and agents from any and all losses, costs, expenses, claims, liabilities, actions, or damages, including liability for injuries to any person or persons or damage to property arising at any time during and/or arising out of or in any way connected with Beach Festival's use or occupancy of the Facilities, unless solely caused by the active negligence or willful misconduct of City or its officers, employees, or agents.

6. Insurance Requirements.
a. Beach Festival must hold adequate general liability insurance for bodily injury and property damage that applies to that person or group's use of the Facilities. The insurance should provide coverage of at least $1,000,000 per occurrence and $2,000,000 in the aggregate. Proof of such insurance must be furnished upon request by City.
b. Requirements of specific coverage features or limits contained in this Section are not intended as a limitation on coverage, limits, or other requirements, or a waiver of any coverage normally provided by any insurance. Specific reference to a given coverage feature is for purposes of clarification only as it pertains to a given issue and is not intended by any party or insured to be all inclusive, or to the exclusion of other coverage, or a waiver of any type. Beach Festival may meet its obligation in this section through equivalent self-insurance.

7. Assignment; Subleases; Transfers. Beach Festival shall not voluntarily or by operation of law assign, transfer, sublet, mortgage, or otherwise transfer or encumber all or any part of Beach Festival's interest in this Agreement or the Facility.

8. Severability. Each provision of this Agreement is severable from the other provisions. If any provision of this Agreement is held by a court of competent jurisdiction to be either invalid, void, or unenforceable, the remaining provisions of this Agreement shall remain in full force and effect to the fullest extent permitted by law. 66 Item 8 C.

9. No Waiver. The failure of either Party to this Agreement to insist at any time upon the strict observance or performance of any of the provisions of this Agreement, or to exercise any right or remedy as provided in this Agreement, shall not impair any such right or remedy or be construed as a waiver or relinquishment of such right or remedy with respect to subsequent defaults.

10. Miscellaneous.
a. Beach Festival shall comply with all local, state, and federal laws and regulations related to the use of the Facilities. Beach Festival agrees to abide by all applicable federal and state accessibility standards and regulations.
b. Each Party agrees that this Agreement is made and accepted on and subject to the condition that there be no discrimination against or segregation of any person or group of persons, on account of race, color, sex, sexual orientation, age, handicap, marital status, religion, nation origin or ancestry in the use, occupancy, tenure or enjoyment of the Facilities, nor shall any Party, or any person claiming under or through it, establish or permit any practice or practices of discrimination or segregation with reference to the Facilities.
c. Beach Festival shall not admit a larger number of individuals than can lawfully, safely, and freely move about the Facilities. In no event may Beach Festival admit a number of individuals than that permitted by the Fire Marshal for the Facilities.

11. Applicable Law and Venue. The execution, interpretation, and performance of this Agreement shall in all respects be controlled and governed by the laws of the State of California. Venue for any action filed with respect to the Agreement shall be in the courts of the County of Santa Cruz and all Parties agree to submit to the jurisdiction of said courts.

12. Notices. Should any notice be required, such notice shall be in writing and delivered either in person at the normal offices of the other party, or, in the alternative, may be given by depositing such notice in the United States mail, postage fully prepaid, and addressed to the parties as follows:

CITY OF CAPITOLA
420 Capitola Ave
Capitola, CA 95010
Attn: City Manager

CAPITOLA BEACH FESTIVAL ASSOCIATION
PO Box 501
Capitola, CA, 95010
67 Item 8 C.

13. Entire Agreement. This Agreement, including any specified attachments, constitutes the entire agreement between the Parties with respect to use of the Facilities and supersedes and replaces any and all previous agreements entered into or/and negotiated between City and Beach Festival relating to the Facilities covered by this Agreement. No change to this Agreement shall be valid unless made by supplemental written agreement executed and approved by City and Beach Festival. Except as otherwise provided herein, any and all amendments, additions, or deletions to this Agreement shall be null and void unless approved by City and Beach Festival in writing.

14. Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

IN WITNESS WHEREOF, City and Beach Festival have executed this Agreement as of the date first written above.

CITY OF CAPITOLA CAPITOLA BEACH FESTIVAL

ASSOCIATION
Signature: __________________________ Signature: __________________________ Print Name: Jamie Goldstein, City Manager Print Name: _________________________ Date: ______________________________ Date: ______________________________ 68 Item 8 C.

Capitola City Council
Agenda Report
Meeting: April 9, 2026
From: Public Works Department
Subject: Stockton Avenue Bridge – Structural Evaluation Findings Recommended Action: Receive the structural evaluation of the Stockton Avenue Bridge and provide direction on next steps.

Background: The Stockton Avenue Bridge is a critical connection within Capitola and serves as a primary access route to Capitola Village and the surrounding coastal areas.

On August 24, 2023, the City Council accepted $500,000 in grant funding from the California Department of Water Resources for the Stockton Bridge Debris Mitigation Project. The adopted FY 2022–23 budget also allocated $350,000 for the initial phase of the project, bringing total available funding to approximately $850,000.

Following the January 2023 storm events and ongoing concerns regarding debris accumulation and hydraulic capacity, the City initiated a debris mitigation and bridge replacement feasibility effort.

On January 25, 2024, Council authorized a professional services agreement to complete a feasibility study evaluating debris mitigation alternatives and bridge replacement. That study identified bridge replacement as the most effective long-term solution to reduce flood risk and improve hydraulic performance.

On November 14, 2024, Council received the feasibility study and directed staff to prioritize bridge replacement and begin advancing the project, including development of plans, permits, and community outreach.

On March 27, 2025, Council considered a proposed amendment to advance preliminary engineering design and related work. Following public comment and Council discussion, Council approved a motion to proceed with additional analysis of the existing bridge, including a structural evaluation, along with continued public outreach and consideration of historic preservation. That structural evaluation has now been completed and is included as Attachment 1. The report provides detailed documentation of observed conditions, including reinforcing steel loss, concrete deterioration, and structural limitations that inform the findings summarized below.

Discussion: The structural evaluation identified widespread deterioration of the bridge deck and reinforcing steel. Field observations confirmed concrete spalling, exposed and corroded reinforcement, and areas of reinforcing steel loss. Inspection access points confirmed that these conditions are present throughout the structure and are not isolated.

The evaluation concludes that, at a minimum, a full deck replacement would be required to address the observed deficiencies. However, given the age of the structure, extent of deterioration, and underlying conditions, the report recommends full bridge replacement as the most effective long-term solution.

A deck replacement would require removal and reconstruction of the primary structural deck system and would need to address underlying girder conditions, load capacity, and long-term durability. Based on current information, this approach would involve significant cost and complexity while not resolving other known issues, including hydraulic constraints and debris accumulation. While deck replacement could address the immediate structural deficiencies of the deck, it would not address the age of the structure, potential seismic vulnerabilities, or hydraulic limitations. As a result, it would represent a substantial investment in an aging structure without providing a comparable long-term solution. 69 Item 9 A.

While the bridge does not currently present an immediate collapse risk, the evaluation notes that deterioration will continue over time, including increased cracking and ongoing degradation of the deck.

Continued maintenance and repair would be expected, with associated costs and operational impacts.

The findings of the structural evaluation are consistent with prior feasibility work and further support the previously identified need for bridge replacement. Replacement would address both structural deficiencies and previously identified concerns related to debris accumulation, hydraulic capacity, and long-term resiliency of this critical access route.

Fiscal Impact: The Stockton Avenue Bridge effort is supported by approximately $850,000 in combined grant and City funding.

To date, approximately $200,000 has been expended for construction activities necessary to complete the structural investigation, including work to access and evaluate internal bridge conditions.

Approximately $151,000 has been expended for professional services, including feasibility analysis and structural evaluation.

The remaining funds are restricted in use and are intended to support debris mitigation and bridge replacement planning activities, including design, environmental review, and future funding applications.

These funds are not intended to support ongoing or large-scale structural repair of the existing bridge.

Based on the findings of the structural evaluation, and consistent with prior hydrological and debris studies, staff recommends utilizing the remaining project funding to advance engineering design for a replacement bridge. This next phase would include preliminary design, environmental review, and coordination with a historic preservation specialist to address historic resource considerations.

Attachments:

1. Stockton Avenue Bridge Existing Condition – Executive Summary (April 2026)

2. Stockton Avenue Bridge Condition Evaluation (March 2026)

3. Stockton Avenue Bridge – Debris Mitigation Feasibility Report (June 2024) Alignment with 2025-2029 Strategic Plan Priority: Community Safety; Sustainable Infrastructure Report Prepared By: Jessica Kahn, Public Works Director Reviewed By: Julia Gautho, City Clerk, Marc Tran, City Attorney Approved By: Jamie Goldstein, City Manager
70 Item 9 A.

CSWST2.com
CSWST2 | 303 Twin Dolphin Drive Redwood Shores, 6th Floor, Redwood City, CA 94065 | t. 415.883.9850

EXECUTIVE SUMMARY
DATE: April 2, 2026 Job No.: 2300338
TO: Jessica Kahn, City of Capitola
FROM: Julia Harberson, CSWST2
RE: STOCKTON AVENUE BRIDGE EXISTING CONDITION – EXECUTIVE SUMMARY The Stockton Avenue Bridge is an aging structure (approximately 93 years old) that is showing clear signs of deterioration and increasing risk. Recent inspections found significant corrosion in key structural elements, especially in the bridge deck, along with cracking, exposed reinforcement, and ongoing maintenance needs.

While the bridge is still safe for use today, its condition will continue to decline over time.

In addition to structural concerns, the bridge is vulnerable to scour (erosion around its foundations) during high flows in Soquel Creek. Analysis indicates the bridge is “scour critical,” meaning its foundations could become unstable under severe storm conditions, especially when debris accumulates.

The bridge also carries multiple utilities (sewer, water, and electrical). While some are in acceptable condition, others show deterioration such as corrosion, cracking, and aging infrastructure, and there are discrepancies between existing utilities and historical records.

Key Findings:
• Remaining service life: Estimated at 5–10 years, though uncertain due to hidden deterioration. • Timing: Replacement planning should begin immediately, as studies and approvals alone may take ~2 years.
• Why not repair: Even major repairs (like full deck replacement) are not cost-e?ective long-term and would not address underlying issues such as corrosion, debris impacts, and seismic vulnerabilities. • Risk of delaying replacement: Continued deterioration could lead to severe cracking, unsafe conditions, or even partial closure, with potential for prolonged roadway shutdown if failure occurs. • Monitoring needs: Increasing deck cracking is the main warning sign; frequent inspections (about every 3 months) are recommended.

Conclusion: While short-term maintenance can keep the bridge operational, the combination of advanced age, structural deterioration, hydraulic/scour risks, and seismic deficiencies make full bridge replacement the most practical and cost-e?ective long-term solution. Planning should begin now to avoid higher risks, costs, and potential service disruptions in the near future. 71 Item 9 A.

CSWST2.com
CSWST2 | 303 Twin Dolphin Drive Redwood Shores, 6th Floor, Redwood City, CA 94065 | t. 415.883.9850

MEMORANDUM
DATE: April 1, 2026 Job No.: 2300338
TO: Jessica Kahn, City of Capitola
FROM: Julia Harberson, CSWST2
RE: STOCKTON AVENUE BRIDGE EXISITING CONDITION MEMORANDUM

INTRODUCTION
This memorandum is a summary of the existing condition of the Stockton Avenue Bridge in Capitola, California.

UTILITY INSPECTION RESULTS
Based on the field investigation conducted on July 16, 2025, the Stockton Avenue Bridge contains multiple utilities within two primary corridors, including sanitary sewer, water, electrical, and unknown lines. Most PVC utilities appear to be in generally serviceable condition with no visible signs of distress, while observed conditions of other utilities include cracking and spalling of the 18-inch asbestos cement sanitary sewer force main, corrosion on ductile iron sewer lines, and exposed or aged electrical wiring. The investigation also identified differences between field conditions and available as-built documentation, including the presence of additional utilities not previously recorded. Proper documentation, including the photos and exhibits gathered during this field visit, will support the design team in evaluating feasible utility strategies during the bridge repair or replacement. See Attachment 1 – Utility Inspection Results.

SCOUR ANALYSIS
Stockton Avenue Bridge was evaluated for bridge scour in four flow scenarios, low flow (Q=1,200 cfs) with and without debris, and high flow (Q=17,500 cfs) with and without debris. Based on these evaluations, FHWA Item 113 (Code & Recommendation) is identified as Code 3, and the bridge is classified as scour critical. Detailed results and recommendations are provided in Table 6 of the Scour Analysis. See Attachment 2 – Scour Analysis.

SUPPLEMENTAL STRUCTURAL CONDITION EVALUATION
Excerpt from Attachment 3 - Supplemental Structural Condition Evaluation:

Conclusion
At a minimum, the widespread loss of a significant percentage of transverse deck reinforcement from corrosion requires a full deck slab replacement. Since the lost reinforcing bars are the bottom transverse 72 Item 9 A.

Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture bars, their repair cannot be addressed with a deck overlay or methacrylate treatment. The recent records for the bridge indicate substantially increased frequency and cost for structural repairs to address corrosion and corrosion related spalls. Given the advanced age of the bridge (93 years), hydraulic and seismic deficiencies, and the substantial cost to restore the deck slab, a full bridge replacement is recommended. In the interim, a load rating reduction is not regarded as necessary since the lost reinforcement alone will not lead to a collapse risk. The deck will continue to deteriorate showing more numerous and wider surface cracks.

Cracking should be monitored and recorded. The deck should be re-assessed if cracking is found to be significantly increased.

Based on the 2022 Caltrans bridge inspection report, this bridge is currently eligible for Bridge Preventive Maintenance Program (BPMP) funding to repair the bridge deck. With the benefit of the photos from our March 2026 observations, Caltrans may reassess the deck and superstructure resulting in HBP funding for rehabilitation and potentially for replacement based on the results of a feasibility study.

Refer to Attachment 3 for complete Supplemental Structural Condition Evaluation.

CSWST2.com
73 Item 9 A.

CSWST2.com
CSWST2 | 303 Twin Dolphin Drive Redwood Shores, 6th Floor, Redwood City, CA 94065 | t. 415.883.9850

ATTACHMENTS
Attachment 1: Utility Inspection Results
Attachment 2: Scour Analysis
Attachment 3: Supplemental Structural Condition Evaluation 74 Item 9 A.

CSWST2.com
CSWST2 | 303 Twin Dolphin Drive Redwood Shores, 6th Floor, Redwood City, CA 94065 | t. 415.883.9850 Attachment 1
Utility Inspection Results
75 Item 9 A.

CSWST2.com
CSWST2 | 504 Redwood Blvd Suite 310, Novato, CA 94947 | t. 415.883.9850

MEMORANDUM
DATE: September 16, 2025 Job No.: 2300338
TO: Jessica Kahn, P.E.

FROM: Julia Harberson, P.E.

RE: Stockton Avenue Bridge Utility Inspection Results

INTRODUCTION
On July 16, 2025, CSWST2, in conjunction with Biggs Cardosa, & Associates (BCA), conducted a field inspection of the utility infrastructure located at Stockton Avenue Bridge in Capitola, California. Our team investigated the utility infrastructure within the existing bridge. Our inspection focused on evaluating the condition of utilities running through two primary utility corridors situated beneath the bridge deck. Prior to the inspection, we reviewed the Caltrans’ as-built drawings from the original bridge construction, which provided a baseline understanding of expected utility alignments and types. The inspection was prompted by the ongoing planning for the rehabilitation or replacement of the bridge structure and was intended to document the existing conditions of utility lines and assess whether any adjustments, protections, or replacements will be necessary as part of future work.

The Stockton Avenue Bridge serves as a key vehicular and pedestrian link over Soquel Creek and supports several critical utility lines. As such, understanding the type, size, condition, and relative position of these utilities is essential for both design and construction planning.

METHODS & RESULTS
Utility Corridor 1
The inspection began with access to the manholes associated with Utility Corridor 1, located beneath the existing northern sidewalk, see Figure 1. The corridor houses multiple utility lines and was accessed via the existing manholes, see Attachment 1. After opening the manholes, accumulated dust and debris was cleared from the surfaces to ensure clear visibility and access to the utilities.
76 Item 9 A.

Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture Figure 1. Manhole Access to Utility Corridor 1 & 2
We documented the existing conditions through both direct measurement and photographic records. Photos of Corridor 1 utilities can be found in Attachments 3 through 8. Pipe materials, diameters, and configurations were noted to the extent possible from the limited access. Tables 1 through 6 show the utilities found in this corridor.

Table 1. Manhole 1 Utilities
Manhole 1
Pipe Size Utility Type Material Condition
18” Sanitary Sewer Force
Main
Asbestos Cement
Pipe
Visible cracking and spalling in
several sections of the outer
encasement.
3” Unknown Polyvinyl Chloride
(Dark Gray)
No visible signs of deformation,
stress, or leaks.
3” Unknown Polyvinyl Chloride
(Light Gray)
No signs of deformation, stress,
or leaks.

Utility Corridor 1
Utility Corridor 2

77 Item 9 A.

Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture Table 2. Manhole 2 Utilities
Manhole 2
Pipe Size Utility Type Material Condition
18” Sanitary Sewer Force
Main
Asbestos Cement
Pipe
Exterior is encrusted in sand. No
visible cracks or fractures.
3” Unknown Polyvinyl Chloride
(Dark Gray)
Surface is dirty. No visible signs of
structural damage.
2” Electrical Polyvinyl Chloride
(White)
Conduit is intact. Wires are
exposed and appear tangled and
aged.

Table 3. Manhole 3 Utilities
Manhole 3
Pipe Size Utility Type Material Condition
18” Sanitary Sewer Force
Main
Asbestos Cement
Pipe
Visible cracking and spalling in
several sections of the outer
encasement.
3” Unknown Polyvinyl Chloride
(Dark Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
3” Unknown Polyvinyl Chloride
(Light Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
2” Electrical Polyvinyl Chloride
(White)
Joints and fittings intact. No
visible evidence of stress.

Table 4. Manhole 4 Utilities
Manhole 4
Pipe Size Utility Type Material Condition
18” Sanitary Sewer Force
Main
Asbestos Cement
Pipe
Visible cracking and spalling in
several sections of the outer
encasement.
3” Unknown Polyvinyl Chloride
(Dark Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
3” Unknown Polyvinyl Chloride
(Light Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
2” Electrical Polyvinyl Chloride
(White)
Joints and fittings intact. Minor
surface wear.

78 Item 9 A.

Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture Table 5. Manhole 5 Utilities
Manhole 5
Pipe Size Utility Type Material Condition
18” Sanitary Sewer Force
Main
Asbestos Cement
Pipe
Visible cracking and spalling in
several sections of the outer
encasement.
3” Unknown Polyvinyl Chloride
(Dark Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
3” Unknown Polyvinyl Chloride
(Light Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
2” Electrical Polyvinyl Chloride
(White)
Minor surface wear. No visible
evidence of stress.

Table 6. Manhole 6 Utilities
Manhole 6
Pipe Size Utility Type Material Condition
18” Sanitary Sewer Force
Main
Asbestos Cement
Pipe
Minor surface wear. Water leaking
onto pipe, source untraceable.
3” Unknown Polyvinyl Chloride
(Dark Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
3” Unknown Polyvinyl Chloride
(Light Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
2” Electrical Polyvinyl Chloride
(White)
Joints and fittings intact. No
visible evidence of stress.

Utility Corridor 2
Utility Corridor 2 runs along the south side of the bridge, see Figure 1. Similar to Corridor 1, manhole lids were removed and cleared of dust and debris to properly document the utility lines.

We measured visible utilities and took photos from multiple angles to assess their condition and configuration, see Tables 7 and 8. Photos of Corridor 2 utilities can be found in Attachments 9 and

10.

79 Item 9 A.

Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture Table 7. Manhole A Utilities
Manhole A
Pipe Size Utility Type Material Condition
4” Water Polyvinyl Chloride
(Dark Gray)
Joints and fittings intact. No
visible evidence of leaking or
stress.
6” Unknown Polyvinyl Chloride
(White)
Surface is dusty but intact. No
visible deformation or major
damage.
5” Unknown Polyvinyl Chloride
(White with Gray
joints)
Covered in soil; no visible
damage, but full condition not
assessable.
5” Unknown Polyvinyl Chloride
(White with Gray
joints)
Buried in soil. No visible defects
from exposed sections.
3” Unknown Polyvinyl Chloride
(Dark gray)
Coated in dust. Appears
structurally intact. No visible
signs of stress.
2” Unknown Polyvinyl Chloride
(White)
Mostly buried. Visible section
intact, but condition uncertain.
6” Sanitary Sewer Force
Main
Ductile Iron Surface heavily corroded and
flaking. Likely abandoned.
10” Sanitary Sewer Force
Main
Ductile Iron Outer surface shows some wear.

Moderate corrosion present.
8” Unknown Polyvinyl Chloride
(Gray)
Minor joint staining.

80 Item 9 A.

Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture Table 8. Manhole B Utilities
Manhole B
Pipe Size Utility Type Material Condition
4” Water Polyvinyl Chloride
(Dark Gray)
Hidden mostly behind other
pipes. Visible section intact.
6” (3”) Unknown Polyvinyl Chloride
(White; interior pipe -
Dark Gray)
Surface is dusty but intact. 6”
pipe encasing 3” pipe. Both pipes
visibly intact.
5” Unknown Polyvinyl Chloride
(White with Gray
joints)
Covered in soil. No visible
damage. Joints and fittings intact.
5” Unknown Polyvinyl Chloride
(White with Gray
joints)
Covered in soil. No visible
damage Joints and fittings intact.
3” Unknown Polyvinyl Chloride
(Dark gray)
Buried in dust. Appears
structurally intact. No visible
signs of stress.
2” Unknown Polyvinyl Chloride
(White)
Minor dirt and grime. No visible
signs of damage.
6” Sanitary Sewer Force
Main
Ductile Iron Buried in soil. Surface heavily
corroded and flaking.
10” Sanitary Sewer Force
Main
Ductile Iron Outer surface shows some wear.

Minor corrosion present.
8” Unknown Polyvinyl Chloride
(Gray)
Minor staining. No visible signs of
damage.

Utility investigation revealed additional utilities to those listed in the as-built documentation, see Attachment 1 for the location of the utilities.

Proper documentation, including the photos and exhibits gathered during this field visit, will support the design team in evaluating feasible utility strategies during the bridge repair or replacement.

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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture

ATTACHMENTS
Attachment 1: Stockton Avenue Bridge Utility Inspection Exhibit Attachment 2: Caltrans Stockton Avenue Bridge As-Builts Attachment 3: Manhole 1: Interior Picture
Attachment 4: Manhole 2: Interior Picture
Attachment 5: Manhole 3: Interior Picture
Attachment 6: Manhole 4: Interior Picture
Attachment 7: Manhole 5: Interior Picture
Attachment 8: Manhole 6: Interior Picture
Attachment 9: Manhole A: Interior Picture
Attachment 10: Manhole B: Interior Picture

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SD
SD
SD
SD
SD
SD
SD
SD
SD
A
- Graphic Scale (in feet)
0 1 inch = 20 ft. 20 20 40

SOQUEL CREEK STOCKTON AVE PACIFIC OCEAN

CAPITOLA CALIFORNIA SANTA CRUZ COUNTY
Date: 07/25/25
Scale:

Prepared Under the Direction of: Rev
Job No. 2300338
P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DWG\wd-nd\Stockton Ave Bridge Section.dwg 09/12/2025 - 10:47 AM natalie 1:3.5602

STOCKTON AVENUE BRIDGE BRIDGE
UTILITY INSPECTION EXHIBIT ( /2)
Engineering
Landscape Architecture
Surveying
Urban Planning
504 Redwood Boulevard, #310
Novato, CA 94947
415.533.1864
CSWST2.com SCALE:
= PLAN VIEW 1" 20'
1 1" = 20' MH 1 MH 2 MH 3 MH 4 MH 5 MH 6 LEGEND LIMIT OF UTILITY CORRIDOR MANHOLE (WELDED) ACCESS MANHOLE (OPENED) CATCH BASIN MH A MH B ROAD CENTERLINE SD UTILITY CORRIDOR 2 UTILITY CORRIDOR 1 84
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4' CLASS II 11' TRAVEL LANE 11' TRAVEL LANE 4' CLASS II 6' SIDEWALK 6' SIDEWALK SCALE: SECTION NTS A
1 -
2 -
3" PVC
3" PVC
4" PVC WATER
5" PVC
5" PVC
2" PVC
8" PVC SCALE: ENLARGEMENT NTS
1 SCALE: ENLARGEMENT NTS
2 18" ACP SSFM
6 " DI
2" PVC

ELECTRICAL
3" PVC ENCASED
IN 6" PVC
3" PVC

ABANDONED
10" DI SSFM
- UTILITYCORRIDOR - UTILITYCORRIDOR

CAPITOLA CALIFORNIA SANTA CRUZ COUNTY
Date: 07/25/25
Scale:

Prepared Under the Direction of: Rev
Job No. 2300338
P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DWG\wd-nd\Stockton Ave Bridge Section.dwg 09/12/2025 - 01:23 PM natalie 1:3.56

STOCKTON AVENUE BRIDGE BRIDGE
UTILITY INSPECTION EXHIBIT ( /2)
Engineering
Landscape Architecture
Surveying
Urban Planning
504 Redwood Boulevard, #310
Novato, CA 94947
415.533.1864
CSWST2.com
2 AS SHOWN
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California Department of Transportation
Division of Maintenance
Structure Maintenance and Investigations
BRIDGE

INSPECTION

RECORDS

INFORMATION
SYSTEM
The requested documents have been generated by BIRIS.

These documents are the property of the California Department of Transportation and should be handled in accordance with Deputy Directive 55 and the State Administrative Manual.

Records for “Confidential” bridges may only be released outside the Department of Transportation upon execution of a confidentiality agreement. 87 Item 9 A.
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture ATTACHMENT 3
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MANHOLE 1: INTERIOR PICTURE
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture ATTACHMENT 4
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MANHOLE 2: INTERIOR PICTURE
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture ATTACHMENT 5
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MANHOLE 3: INTERIOR PICTURE
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture ATTACHMENT 6
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MANHOLE 4: INTERIOR PICTURE
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MANHOLE 5: INTERIOR PICTURE
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture ATTACHMENT 8
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MANHOLE 6: INTERIOR PICTURE
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture ATTACHMENT 9
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MANHOLE A: INTERIOR PICTURE
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture ATTACHMENT 10
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MANHOLE B: INTERIOR PICTURE
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CSWST2.com
CSWST2 | 303 Twin Dolphin Drive Redwood Shores, 6th Floor, Redwood City, CA 94065 | t. 415.883.9850 Attachment 2
Scour Analysis
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CSWST2.com
CSWST2 | 303 Twin Dolphin Drive Redwood Shores, 6th Floor, Redwood City, CA 94065 | t. 415.883.9850

MEMORANDUM
DATE: April 1, 2026 Job No.: 2300338
TO: Jessica Kahn, City of Capitola
FROM: Julia Harberson, CSWST2
RE: STOCKTON AVENUE BRIDGE SCOUR ANALYSIS

INTRODUCTION
This memorandum is prepared to provide a summary of the preliminary findings of the scour analysis for the Stockton Avenue Bridge in Capitola, California as a part of Caltrans Highway Design Manual (HDM), Section 16-1 – Hydraulic Design for Structures Over Walkways. Stockton Avenue Bridge spans the lower reaches of Soquel Creek near the mouth of the creek. Soquel Creek Watershed, which is situated between the cities of Santa Cruz and Watsonville, drains an area of approximately 42 square miles. The watershed is comprised of urban development, rural residential development, agriculture, parks and recreation, and mining and timber harvesting. Stockton Avenue Bridge serves as a key vehicular and pedestrian link and supports several critical utility lines. Thus assessing the condition of the bridge and the effect of scour is key.

Figure 1: Stockton Avenue Bridge Looking Upstream

EXISTING CONDITIONS
The Stockton Avenue Bridge is furthest downstream bridge in the Soquel Creek watershed, which is known to have large woody debris (LWD) that has historically caused flooding by damming up bridges, specifically in 109
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture 1955 and 1982 storm seasons. Stockton Avenue Bridge has a center clear span of 80 feet and is supported by two piers.

Figure 2: Stockton Avenue Bridge As-Built with Pile Caps Highlighted (Red is the top of the pile cap and blue is the bottom of the pile cap)
At the mouth of Soquel Creek, downstream of the Stockton Avenue Bridge, a lagoon is artificially formed in the summer by building or allowing a sandy berm/sandbar at the creek’s outlet. A concrete flume under the sand that allows Soquel Creek to discharge to the ocean when the sandbar is in place. Flow is managed through this flume. Once creek flows rise sufficiently (often in winter / the rainy season), the sandbar is opened or breached so the creek can flow freely to the ocean. This helps prevent flooding, overflow, or other hazards. For the purpose of our analysis, we assume the sandbar has been breached.

METHODOLOGY
In alignment with Caltrans and the Federal Highway Administration (FHWA) guidelines HEC-18, bridge scour analysis was completed utilizing the Army Corp of Engineer’s Hydrologic Engineering Center’s River Analysis Computer Program (HEC-RAS). Use of HEC-RAS to model channel hydraulics for the scenarios provided is considered appropriate as the water in the channel, at the elevations modeled, is flowing in one direction, downstream, toward the ocean during the flow event. Additionally, HEC-RAS model provides bridge scour depths for contraction, piers and abutments.

Geometry:

The HEC-RAS geometry file which defines the water channel (Soquel Creek) and adjacent topography is based on topographic information of the area sourced from the County of Santa Cruz Geographic Information Systems Department. This topographic information is supplemented by field points taken by CSWST2 in July 2025 utilizing the Trimble Geo 7x Handheld GNSS System. The bridge information is based on the As-Built Plans Set from Caltrans, Document No. 40008995 for Capitola Bridge, dated October 1933.

Peak Flow:

The peak flow used for the 100-year storm event is 17,500 cfs in accordance with the Federal Emergency Management Agency’s (FEMA) Flood Insurance Study (FIS) for Santa Cruz County, CA and Incorporated Areas, FIS No. 06087CV001C.
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture The peak flow for the lower flow event of 1,200 cfs is pulled from the United States Geological Survey’s (USGS) website, “USGS Water Data for the Nation” (waterdata.usgs.gov/nwis). USGS provides data retrieved from a flow monitoring location in Soquel Creek. Between January 2024 and March 2024 four storms produced flows of 1000 cfs or more in Soquel Creek. Large woody debris was observed to be caught below the Stockton Avenue Bridge in February 2024 and in March 2024.

Starting Hydraulic Grade Line:

In this preliminary analysis, to evaluate the response of hydraulic grade line upstream of the Stockton Avenue Bridge to each of the Countermeasure Alternatives, it is assumed that the tide is low and Soquel Creek flows freely at normal depth conditions toward the Pacific Ocean.

Channel Roughness:

United States Geological Survey Water-Supply Paper 2339 “Guide for Selecting Manning’s Roughness Coefficients for Natural Channels and Flood Plains” G. Arcement, Jr. & V. Schneider Main Channel:

Table 1. “Base values of Manning’s n”
Sand Channel
n = 0.026
Floodplains:

Utilize a base value of 0.026 and add an adjustment factor from:

Table 2. “Adjustment values for factors that affect the roughness of a channel” Amount of vegetation – medium – adjustment factor 0.010 n = 0.036
Debris Piers:

HEC-RAS includes the ability to identify the width and depth of floating debris caught on bridge piers, which affect the channel cross section geometry. Data is not available for the amount of LWD that could be caught on a structure for any given storm event. Assumptions were made for the amount of floating debris caught on the Stockton Avenue Bridge and the counter measure alternatives. These assumptions are provided below. • Assumes that debris is caught on the bridge piers.
• Debris capture is represented by debris piers in the HEC-RAS model • Debris piers extend 15 feet on either side of the centerline of the eastern bridge pier. • Debris piers extend 10 feet on either side of the centerline of the western bridge pier. • The debris pier floats below the water surface at 6’ deep. 111
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture Bridge Scour:

The HEC-RAS program automatically inputs the results of the hydraulic analysis in the bridge scour analysis.

To complete the bridge scour analysis, the following assumptions were made:
• The river bed was assumed to be silty sandy DG type soil where D50=1mm and D95=10mm. • Per the HEC-18 guidelines, the bed was assumed to be clear-water. • Based on the As-Built drawings of the bridge and a conservative approach, square-nosed piers. • The water-flow to pier angle is set at 0-degrees as the water flow is perpendicular to the bridge.

SCOUR ANALYSIS AND RESULTS
Four scenarios were considered in the bridge scour analysis of Stockton Avenue Bridge, see Table 1 below.

Flow Scenario Flow Rate (cfs)
Low Flow no Debris 1,200
Low Flow with Debris 1,200
High Flow no Debris 17,500
High Flow with Debris 17,500
Table 1: Flow Scenarios
From the HEC-RAS analysis, the scour depth is adjusted for the approximate channel invert and an actual approximate scour depth elevation is calculated which is compared to the bridge pier elevations. Table 2 below shows the pier scour depth results from the analysis and adjustment to approximate scour elevation.

As shown in Table 1 below, in the low flow condition (Q=1,200 cfs), large woody debris does not impact the scour analysis. In the high flow condition (Q=17,500 cfs), the large woody debris increases the scour depth.

Flow Condition Pier + Contraction Scour
(ft)
Approximate Channel
Invert (ft)
Pier + Contraction Scour
Depth Elevation (ft)
Peak
Flow
(cfs)
Large
Woody
Debris
North/Right
Pier
South/Left
Pier
North/Right
Pier
South/Left
Pier
North/Right
Pier
South/Left
Pier
1,200 No 5.68 5.68 -1.5 -1.5 -7.18 -7.18
1,200 Yes 5.68 5.68 -1.5 -1.5 -7.18 -7.18
17,500 No 14.39 14.39 -1.5 -1.5 -15.88 -15.88
17,500 Yes 17.15 17.15 -1.5 -1.5 -18.65 -18.65
Table 2: Pier Scour Results
The results of the scour analysis at the abutments as well as the adjustment to scour depth elevation are shown in Table 3 below. As shown in Table 3, only the right bridge abutment in the high flow (Q=17,500 cfs) condition with woody debris, is impacted by pier scour. 112
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture Flow Condition Abutment + Contraction
Scour
Approximate Channel
Invert (ft)
Abutment + Contraction
Scour Depth Elevation (ft)
Peak
Flow
(cfs)
Large
Woody
Debris
North/Right
Abutment
South/Left
Abutment
North/Right
Abutment
South/Left
Abutment
North/Right
Abutment
South/Left
Abutment
1,200 No n/a n/a 4.42 8.4 n/a n/a
1,200 Yes n/a n/a 4.42 8.4 n/a n/a
17,500 No n/a n/a 4.42 8.4 n/a n/a
17,500 Yes 5.95 n/a 4.42 8.4 -1.53 n/a
Table 3: Abutment Scour Results
The following relevant single-digit and bridge condition status are per Attachment B of the FHWA Revision of Coding Guide, Item 113 – Scour Critical Bridges Memorandum dated April 27, 2001 (HIBT-30):

Code Description
5 Bridge foundations determined to be stable for assessed or calculated scour conditions. Scour is determined to be within the limits of footing or piles (Example B) by assessment (i.e., bridge foundations are on rock formations that have been determined to resist scour within the service life of the bridge), by calculations or by installation of properly designed countermeasures (see HEC 23).
3 Bridge is scour critical; bridge foundations determined to be unstable for assessed or calculated scour conditions:
-Scour within limits of footing or piles (Example B)
-Scour below spread footing base or pile tips.

Examples Calculated Scour Depth Action Needed
A. Above Top of
Footing
None – indicate rating of 8 for this
item
B. Within Limits
of piles
Conduct foundation structural
analysis
C. Below pile tips Provide for monitoring and scour
countermeasures as necessary
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture As shown in Table 4 below, for all flow scenarios, the entire pier caps are exposed. In the low flow condition (Q=1,200 cfs), the length of pier exposure may vary over the course of a storm event with the possible variance in the channel bed elevation at the piers. The scour depth falls between the top of the pile cap and the bottom of the pile but near the pile cap which, per FHWA Item 113 is coded as 3 or 5 meaning additional structural analysis is required to determine whether the bridge foundations are stable or not and additional measures to protect the exposed foundations may be required.

Per the as-built drawings, the length of the pier pile timbers is approximately 25’ long. As such, in the high flow conditions (Q=17,500 cfs), the scour depth falls in the bottom half of the exposed pier pile. Per Item 113 (FHWA NBIP), the bridge is coded as 3 which indicates the bridge is scour critical and additional foundation structural analysis is needed.

Flow Condition Pier + Contraction Scour
Depth Elevation (ft)
Pier Cap Top/Bottom
Elevation (ft)
Pier Cap Exposed Top/Bottom
(Yes/No)
Peak
Flow
(cfs)
Large
Woody
Debris
North/Right
Pier
South/Left
Pier
North/Right
Pier
South/Left
Pier
North/Right
Pier
South/Left
Pier
1,200 No -7.18 -7.18 -3 / -7 -3 / -7 Yes / Yes Yes / Yes 1,200 Yes -7.18 -7.18 -3 / -7 -3 / -7 Yes / Yes Yes / Yes 17,500 No -15.88 -15.88 -3 / -7 -3 / -7 Yes / Yes Yes / Yes 17,500 Yes -18.65 -18.65 -3 / -7 -3 / -7 Yes / Yes Yes / Yes Table 4: Pier Scour – Adjusted Scour Depth
As noted in Table 3, only the northern (right) abutment is impacted by bridge scour in the high flow scenario accounting for debris. As shown in Table 5 below, the entire abutment pier cap is exposed. Approximately 2- feet of the piles are exposed and per FHWA Item 113, the bridge is coded as 3 or 5 which means additional structural analysis is required to determine whether the bridge foundations are stable or not and additional measures to protect the exposed foundations may be required.

Flow Condition
Abutment + Contraction
Scour Depth Elevation
(ft
Abutment Pier Cap
Top/Bottom Elevation (ft)
Abutment Pier Cap
Exposed Top/Bottom
(Yes/No)
Peak
Flow
(cfs)
Large
Woody
Debris
North/Right
Abutment
South/Left
Abutment
North/Right
Abutment
South/Left
Abutment
North/Right
Abutment
South/Left
Abutment
1,200 No n/a n/a 2.5 / 0 4.5 / 2 n/a n/a
1,200 Yes n/a n/a 2.5 / 0 4.5 / 2 n/a n/a
17,500 No n/a n/a 2.5 / 0 4.5 / 2 n/a n/a
17,500 Yes -1.53 n/a 2.5 / 0 4.5 / 2 Yes / Yes n/a
Table 5: Abutment Scour – Adjusted Depth
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture

CONCLUSION
Stockton Avenue Bridge was analyzed for bridge scour in four flow scenarios, low flow (Q=1,200 cfs) with and without debris, and high flow (Q=17,500 cfs) with and without debris. As seen in Table 2, debris doesn’t impact the low flow bridge scour results. See Table 6 below.

Location Flow Scenario Scour Depth FHWA Item 113 Code & Recommendation
Bridge Piers
(north &
south)
Low Flow with
and without
Debris
(Q=1,200 cfs)
3 or 5:
• additional structural
analysis is needed to
determine bridge
foundation stability
High Flow no
Debris
(Q=17,500 cfs)
3:
• bridge is scour
critical
• additional foundation
structural analysis is
needed to determine
foundation stability
High Flow with
Debris
(Q=17,500 cfs)
3:
• bridge is scour
critical
• additional foundation
structural analysis is
needed to determine
foundation stability
Bridge
Abutment
(north/right) High Flow with
Debris
(Q=17,500 cfs)
3 or 5:
• additional structural
analysis is needed to
determine bridge
foundation stability
Table 6: Results Summary
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture

ATTACHMENTS
Attachment 1: HEC-RAS Model Bridge Scour Results Table
Attachment 2: HEC-RAS Model Bridge Scour Section Plots
Attachment 3: Stockton Avenue Bridge As-Built Drawings
Attachment 4: Hydraulic Assessment of Debris Countermeasure Alternatives Preliminary Results 116
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HEC-RAS Model Bridge Scour Results Table
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Contraction Scour
Left Channel Right
Input Data
Average Depth (ft): 6.38
Approach Velocity (ft/s): 1.56
Br Average Depth (ft): 6.43
BR Opening Flow (cfs): 1200.00
BR Top WD (ft): 110.30
Grain Size D50 (mm): 1
Approach Flow (cfs): 1200.00
Approach Top WD (ft): 120.65
K1 Coefficient: 0.590
Results
Scour Depth Ys (ft): 0.00
Critical Velocity (ft/s): 2.27
Equation: Clear
Pier Scour
All piers have the same scour depth
Input Data
Pier Shape: Square nose
Pier Width (ft): 5.50
Grain Size D50 (mm): 1.00000
Depth Upstream (ft): 7.34
Velocity Upstream (ft/s): 1.68
K1 Nose Shape: 1.10
Pier Angle: 0.00
Pier Length (ft): 44.17
K2 Angle Coef: 1.00
K3 Bed Cond Coef: 1.10
Grain Size D90 (mm): 10.00000
K4 Armouring Coef: 1.00
Results
Scour Depth Ys (ft): 5.68
Froude #: 0.11
Equation: CSU equation
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Contraction Scour
Left Channel Right
Input Data
Average Depth (ft): 6.40
Approach Velocity (ft/s): 1.55
Br Average Depth (ft): 7.05
BR Opening Flow (cfs): 1200.00
BR Top WD (ft): 71.29
Grain Size D50 (mm): 1.00 1.00
Approach Flow (cfs): 1200.00
Approach Top WD (ft): 120.66
K1 Coefficient: 0.590
Results
Scour Depth Ys (ft): 0.00
Critical Velocity (ft/s): 2.27
Equation: Clear
Pier Scour
All piers have the same scour depth
Input Data
Pier Shape: Square nose
Pier Width (ft): 5.50
Grain Size D50 (mm): 1.00000
Depth Upstream (ft): 7.36
Velocity Upstream (ft/s): 1.67
K1 Nose Shape: 1.10
Pier Angle: 0.00
Pier Length (ft): 44.17
K2 Angle Coef: 1.00
K3 Bed Cond Coef: 1.10
Grain Size D90 (mm): 10.00000
K4 Armouring Coef: 1.00
Results
Scour Depth Ys (ft): 5.68
Froude #: 0.11
Equation: CSU equation
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Contraction Scour
Left Channel Right
Input Data
Average Depth (ft): 14.29 2.49
Approach Velocity (ft/s): 9.99 2.35
Br Average Depth (ft): 16.46
BR Opening Flow (cfs): 17500.00
BR Top WD (ft): 94.74
Grain Size D50 (mm): 1.00 1
Approach Flow (cfs): 17385.30 114.70
Approach Top WD (ft): 121.86 19.60
K1 Coefficient: 0.640 0.640
Results
Scour Depth Ys (ft): 0.42
Critical Velocity (ft/s): 2.59
Equation: Live
Pier Scour
All piers have the same scour depth
Input Data
Pier Shape: Square nose
Pier Width (ft): 5.50
Grain Size D50 (mm): 1.00000
Depth Upstream (ft): 15.37
Velocity Upstream (ft/s): 10.79
K1 Nose Shape: 1.10
Pier Angle: 0.00
Pier Length (ft): 44.17
K2 Angle Coef: 1.00
K3 Bed Cond Coef: 1.10
Grain Size D90 (mm): 10.00000
K4 Armouring Coef: 1.00
Results
Scour Depth Ys (ft): 13.97
Froude #: 0.48
Equation: CSU equation
Combined Scour Depths
Pier Scour + Contraction Scour (ft):

Channel: 14.39
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Contraction Scour
Left Channel Right
Input Data
Average Depth (ft): 0.21 14.89 1.47
Approach Velocity (ft/s): 0.29 9.56 2.15
Br Average Depth (ft): 15.79
BR Opening Flow (cfs): 17500.00
BR Top WD (ft): 80.59
Grain Size D50 (mm): 1.00 1.00
Approach Flow (cfs): 0.04 17350.87 149.10
Approach Top WD (ft): 0.58 121.87 47.14
K1 Coefficient: 0.590
Results
Scour Depth Ys (ft): 3.35
Critical Velocity (ft/s): 2.61
Equation: Live
Pier Scour
All piers have the same scour depth
Input Data
Pier Shape: Square nose
Pier Width (ft): 5.50
Grain Size D50 (mm): 1.00000
Depth Upstream (ft): 15.97
Velocity Upstream (ft/s): 10.35
K1 Nose Shape: 1.10
Pier Angle: 0.00
Pier Length (ft): 44.17
K2 Angle Coef: 1.00
K3 Bed Cond Coef: 1.10
Grain Size D90 (mm): 10.00000
K4 Armouring Coef: 1.00
Results
Scour Depth Ys (ft): 13.79
Froude #: 0.46
Equation: CSU equation
Abutment Scour
Left Right
Input Data
Station at Toe (ft): 182.41 313.87
Toe Sta at appr (ft): 181.09 312.85
Abutment Length (ft): 0.61 50.29
Depth at Toe (ft): -1.98 0.59
K1 Shape Coef: 1.00 - Vertical abutment
Degree of Skew (degrees): 90.00 90.00
K2 Skew Coef: 1.00 1.00
Projected Length L' (ft): 0.61 50.29
Avg Depth Obstructed Ya (ft): 0.86 1.42
Flow Obstructed Qe (cfs): 2.71 164.78
Area Obstructed Ae (sq ft): 0.53 71.34
Results
Scour Depth Ys (ft): 2.60
Froude #: 0.22
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Equation: Default HIRE
Combined Scour Depths
Pier Scour + Contraction Scour (ft):

Channel: 17.15
Right abutment scour + contraction scour (ft): 5.95
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CSWST2 | 303 Twin Dolphin Drive Redwood Shores, 6th Floor, Redwood City, CA 94065 | t. 415.883.9850 ATTACHMENT 2:

HEC-RAS Model Bridge Scour Section Plots
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0 100 200 300 400 500
-10
-5
0 5
10 15
20 25
30 35
Bridge Scour RS = 170.36
Station (ft) Elevation (ft)
Legend
WS PF 1
Ground
Ineff
Bank Sta
Abutment Toe
Contr Scour
Total Scour
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0 100 200 300 400 500
-10
-5
0 5
10 15
20 25
30 35
Bridge Scour RS = 170.36
Station (ft) Elevation (ft)
Legend
WS PF 1
Ground
Ineff
Bank Sta
Pier Debris
Abutment Toe
Contr Scour
Total Scour
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0 100 200 300 400 500
-20
-10
0 10
20 30
40 Bridge Scour RS = 170.36
Station (ft) Elevation (ft)
Legend
WS PF 1
Ground
Ineff
Bank Sta
Abutment Toe
Contr Scour
Total Scour
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0 100 200 300 400 500
-20
-10
0 10
20 30
40 Bridge Scour RS = 170.36
Station (ft) Elevation (ft)
Legend
WS PF 1
Ground
Ineff
Bank Sta
Pier Debris
Abutment Toe
Contr Scour
Total Scour
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Stockton Avenue Bridge As-Built Drawings
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California Department of Transportation
Division of Maintenance
Structure Maintenance and Investigations
BRIDGE

INSPECTION

RECORDS

INFORMATION
SYSTEM
The requested documents have been generated by BIRIS.

These documents are the property of the California Department of Transportation and should be handled in accordance with Deputy Directive 55 and the State Administrative Manual.

Records for “Confidential” bridges may only be released outside the Department of Transportation upon execution of a confidentiality agreement. 129
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Adaptive Solutions. Resilient Designs. Engineering ∙ Urban Planning ∙ Land Surveying ∙ Landscape Architecture ATTACHMENT 4:

Hydraulic Assessment of Debris Countermeasure Alternatives Preliminary Results CSWST2.com
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Adaptive Solutions for Resilient Designs
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MEMORANDUM
DATE: June 28, 2024 FILE: 2300338
TO: Julia Harberson
FROM: Kristine Pillsbury and Brianna Bright
RE: STOCKTON AVENUE BRIDGE DEBRIS MITIGATION FEASIBILITY

HYDRAULIC ASSESSMENT OF DEBRIS COUNTERMEASURE ALTERNATIVES

PRELIMINARY RESULTS
This memorandum is prepared to provide a summary of the findings of the hydraulic assessment of the debris countermeasure alternatives proposed for the Stockton Avenue Bridge in Capitola, California.

This memorandum includes the following Attachments:

Attachment 1 – HEC-RAS Model Results Tables
Attachment 2 – HEC-RAS Model Cross Section Plots
Introduction
Stockton Avenue Bridge is located in the lower reaches of the Soquel Creek Watershed, which is situated between the cities of Santa Cruz and Watsonville. The Soquel Creek watershed drains an area of approximately 42 square miles. The watershed is comprised of urban development, rural residential development, agriculture, parks and recreation, and mining and timber harvesting.

The University of California Berkeley study “Large Woody Debris in Urban Stream Channels:

Redefining the Problem” identified large woody debris (LWD) as an important ecological element in Soquel Creek. LWD is defined as a dead piece of wood that is at least 10 cm in diameter and at least one-meter long. The Soquel Creek watershed includes rural, agricultural and timber harvesting areas, which generate LWD. LWD of this size and larger can remain in the river channels for years and play an important role in shaping channel form and influencing function. However, when LWD accumulates around obstructions in the channel, capacity for conveyance is be reduced, leading to flooding of areas adjacent to the stream. As well, critical infrastructure can be damaged.
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LWD management has evolved over the years from removal of debris to a long term passing management approach. A LWD passing approach would cause large wooden logs and branches to rotate parallel with the flow of the creek to pass beneath bridges.

The average tree length in the Soquel Creek watershed was identified as being between 15 and 30 feet long. The narrowest clear span of the Stockton Avenue Bridge is 10 feet. This appears to cause buildup of debris that can span the whole creek width, cause damage to the bridge, and cause significant flooding to adjacent areas.

The 2016 Due Diligence memorandum, prepared
by Kimley Horn, identified four potential debris
control countermeasures: debris sweeper, debris
fins, debris deflectors (cage and pier variants)
and bridge replacement. The purpose of this
report is to analyze each debris diversion
countermeasure and potential flood risk along
Soquel Creek.

Existing Conditions
The Stockton Avenue Bridge is furthest downstream bridge in the Soquel Creek watershed, which is known to have LWD that has historically caused flooding by damming up bridges, specifically in 1955 and 1982 storm seasons. Bridges upstream from the site, at Soquel Drive and Highway 1, have larger spans than the Stockton Avenue Bridge. The span of the Soquel Drive Bridge, which was replaced in 1890, 1927, 1956 and most recently in 2003 with the added intent to facilitate the passage of LWD, now has a span of 140 feet compared to the Stockton Avenue Bridge center clear span of 80 feet.

This increase in bridge clear span at Soquel Drive Bridge creates a higher potential than historically existed for debris to accumulate upstream of Stockton Avenue Bridge and cause flooding risk to low laying areas. During a March 18th, 2024 site visit, LWD was observed in the eastern bridge span. Sediment accumulated around the LWD reducing the hydraulic capacity of the bridge.

Figure: Debris Accumulation in
Eastern Span of Stockton
Avenue Bridge
Figure: 1982 Debris Accumulation upstream of
Soquel Drive Bridge.
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Countermeasure Alternatives
Alternative 1: Debris Diversion Fin
Debris diversion fins are comprised of
vertical, free-standing, reinforced
concrete walls extending upstream from,
but not connected to, the existing bridge
piers. The top of the fin wall can be
sloping or horizontal. In the proposed
alternative, the top of the fin wall is
sloping; higher adjacent to the bridge
and declining into the fin wall footing at
the opposite end. The eastern fin wall is
suggested to be installed at an angle to
minimize debris catch between the
bridge pier and the creek wall; a space that
is approximately 8 feet to 9 feet wide at
the narrowest.

Alternative 2: Debris Diversion Cage
Debris diversion cages are meant to
orient large debris to flow under the
bridge. The debris diversion cages are
comprised of a prefabricated steel
triangular cage upstream of a bridge
that are designed to orient debris such
as trees or logs so that they pass under
the bridge longitudinally. The cage may
also be located directly in front of a pier.

For bridge deflectors to work, the flow
direction needs to be fairly stable.

Installation of a debris diversion cages at
the Stockton Avenue Bridge would be
comprised of cages at each bridge pier, placed on three reinforced concrete piers within the Soquel Creek channel.

Figure: Debris Diversion Fin
Figure: Debris Diversion Cage
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Alternative 3: Debris Deflector Piers
Debris diversion piers are meant to orient
large debris to flow under the bridge. The
debris deflectors are comprised of vertical
poles upstream of a bridge that are
designed to orient debris such as trees or
logs so that it passes under the bridge
longitudinally. The deflectors may also be
located directly in front of a pier. For
bridge deflectors to work, the flow
direction needs to be fairly stable. The
design of this type of system is
complicated, and physical model tests
may be necessary.

Implementation of a debris diversion piers at the Stockton Avenue Bridge would be comprised of eleven (11) piers at each bridge pier, placed on reinforced concrete piers with in the Soquel Creek channel.

Alternative 4: Debris Sweeper
Debris sweepers are a vaned cylinder
located in front of a pier that rotates with
the flow and “sweeps” the debris away
from the pier and into the flow between
bridge piers. Sweepers are usually
polyethylene and float up and down so
they can move with the water surface.

Implementation at the Stockton Avenue
Bridge would include the installation of two
manufactured floating debris sweepers
adjacent to the existing piers within the
channel of Soquel Creek. The sweepers
would be installed on reinforced concrete
piers, and the sweepers would rise and fall
with the water level of the creek.

Figure: Debris Diversion Piers
Figure: Debris Sweeper
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Alternative 5: Bridge Replacement
Replacement of the Stockton Avenue Bridge would include a 135 foot clear span bridge, with abutments in the same location as the existing bridge and a six (6) foot deck structure. The replacement would widen the bridge by eight (8) feet to 52 feet wide. The widened bridge will accommodate the increased street section.

Figure: Preliminary Longitudinal Section of Bridge Replacement 139
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Hydraulic Analysis
Water surface elevations within Soquel Creek at the Stockton Avenue Bridge were calculated using HEC-RAS version 6.5, the Army Corps of Engineer’s Hydrologic Engineering Center’s River Analysis System computer program. Use of HEC-RAS to model channel hydraulics for the scenarios provided is considered appropriate as the water in the channel, at the elevations modeled, is flowing in one direction, downstream, toward the ocean during the flow event.

Topography
The source for topographic information in the area of the project is the County of Santa Cruz Geographic Information Systems Department.

Bridge
The source for dimensions of the Stockton Avenue Bridge is the As Built Plans Set from Caltrans, Document No. 40008995 for Capitola Bridge, dated October 1933.

Peak Flow
The peak flow used for the 100-year storm event is 17,500 cfs in accordance with the Federal Emergency Management Agency’s (FEMA) Flood Insurance Study (FIS) for Santa Cruz County, CA and Incorporated Areas, FIS No. 06087CV001C.

The peak flow for the lower flow event of 1,200 cfs is pulled from the United States Geological Survey’s (USGS) website, “USGS Water Data for the Nation” (waterdata.usgs.gov/nwis). USGS provides data retrieved from a flow monitoring location in Soquel Creek. Between January 2024 and March 2024 four storms produced flows of 1000 cfs or more in Soquel Creek. Large woody debris was observed to be caught below the Stockton Avenue Bridge in February 2024 and in March 2024.

Hydrograph for Unsteady Flow Analysis
A simplified hydrograph was developed based upon the flow data for the lower peak flow storm of January 2024. The hydrograph assumes a storm flow duration of 24 hours with peak flow occurring at 9 hours and 15 minutes after the start of the flow event.

Starting Hydraulic Grade Line
In this preliminary analysis, to evaluate the response of hydraulic grade line upstream of the Stockton Avenue Bridge to each of the Countermeasure Alternatives, it is assumed that the tide is low and Soquel Creek flows freely at normal depth conditions toward the Pacific Ocean.

Channel Roughness
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United States Geological Survey Water-Supply Paper 2339 “Guide for Selecting Manning’s Roughness Coefficients for Natural Channels and Flood Plains” G. Arcement, Jr. & V. Schneider Main Channel:

Table 1. “Base values of Manning’s n”
Sand Channel
n = 0.026
Floodplains:

Utilize a base value of 0.026 and add an adjustment factor from:

Table 2. “Adjustment values for factors that affect the roughness of a channel” Amount of vegetation – medium – adjustment factor 0.010 n = 0.036
Debris Piers
HEC-RAS includes the ability to identify the width and depth of floating debris caught on bridge piers, which affect the channel cross section geometry. Data is not available for the amount of LWD that could be caught on a structure for any given storm event. Assumptions were made for the amount of floating debris caught on the Stockton Avenue Bridge and the counter measure alternatives. These assumptions are provided below.

Additional Assumptions for Existing Condition and Countermeasure Alternatives Existing Condition
• Assumes that debris is caught on the bridge piers.
• Debris capture is represented by debris piers in the HEC-RAS model • Debris piers extend 15 feet on either side of the centerline of the eastern bridge pier. • Debris piers extend 10 feet on either side of the centerline of the western bridge pier. • The debris pier floats below the water surface at 6’ deep.

Alternative 1: Debris Diversion Fin
• Fins are represented by a blockage in the channel.
• Because the fin is angled toward the creek wall, it is assumed that LWD for the most part, continues to flow past and under the bridge to the ocean. However, it is assumed that some amount of debris will be caught on “v” that the fin forms with the creek wall. The 141
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LWD retained on the angled fin is assumed to block the flow of water from passing under the small eastern span of the bridge.

Goal of analysis: See whether there is a reduction in capacity of the channel and resulting increase in water surface elevation, assuming that the fins are mostly functioning but some debris is caught on them.

Alternative 2: Debris Diversion Cage
• Both cages are represented as the piers of a false bridge inserted upstream of the Stockton Avenue Bridge
• The center of the false bridge is at the midpoint of the triangle made by the cage. • The diversion cages are represented as piers of the false bridge. It is assumed that some amount of debris will be caught on the cages, rendering the space inside the cage an area of ineffective flow.
• The width of the false bridge is the same as the length of the triangle made by the cage in the stream.
• The piers of the false bridge vary in width from upstream to downstream. Pier widths up and downstream match the width of the cage in the stream. • The floating pier debris option is turned on to account for some amount of debris caught on the debris diversion cage.
• The width of the debris is assumed to extend 4.75 feet on either side of the nose of the cage.
• The depth of debris is assumed to extend 9.5 feet below the water surface.

Goal of analysis: See the reduction in capacity of the channel and resulting increase in water surface elevation assuming that the diversion cages are mostly functioning but some debris is caught on them.

Alternative 3: Debris Deflector Piers
• Both sets of piers are represented as the piers of a false bridge inserted upstream of the Stockton Avenue Bridge
• The center of the false bridge is at the midpoint of the pier triangle. • It is assumed that some amount of debris will be caught on the piers, rendering the space inside the pier configuration, behind the debris, an area of ineffective flow. • The width of the false bridge is the same as the length of the triangle in the stream. • The piers of the false bridge vary in width from upstream to downstream. Pier widths up and downstream match the width of the debris piers in the stream. • The floating pier debris option is turned on to account for some amount of debris caught on the piers.
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• The width of the debris is assumed to extend 4.75 feet on either side of the pier. • The depth of debris is assumed to be 4 feet below the water surface.

Goal of analysis: See the whether there is a reduction in capacity of the channel and resulting increase in water surface elevation assuming that the deflector piers are mostly functioning but some debris is caught on them. The amount of debris is less than for the Debris Diversion Cages.

Alternative 4: Debris Sweeper
• Both sweepers are represented as the piers of a false bridge inserted upstream of the Stockton Avenue Bridge
• The center of the false bridge is at the centerline of the sweeper and its supporting pole. • It is assumed that some amount of debris will be caught on the sweeper. • The floating pier debris option is turned on to account for some amount of debris caught on the sweeper.
• The width of the debris is assumed to extend 2.75 feet on either side of the sweeper. • The depth of debris is assumed to be 4 feet below the water surface.

Goal of the analysis: See the whether there is a reduction in capacity of the channel and resulting increase in water surface elevation assuming that the debris sweepers are mostly functioning but some debris is caught on them.

Alternative 5: Bridge Replacement
Goal of the analysis: See the change in capacity of the channel, over existing conditions, with the construction of a clear span bridge and removal of existing bridge and bridge piers in the channel.

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Results
Table 1: Depth at Upstream Side of Stockton Avenue Bridge All Alternatives with Debris Capture
Model
Station
170.36
Existing
Conditions
(with debris)
(feet)
Alternative 1
Debris Fin
(feet)
Alternative 2
Debris Cage
(feet)
Alternative 3
Debris Piers
(feet)
Alternative 4
Debris
Sweeper
(feet)
Q100
17,500 cfs 11.29 12.82 11.72 11.72 11.66
QJan2024
1,200 cfs 3.96 5.50 4.02 4.02 4.01
Table 2: Depth 50 feet upstream of Stockton Avenue Bridge All Alternatives with Debris Capture
Model
Station
218.85
Existing
Conditions
(with debris)
(feet)
Alternative 1
Debris Fin
(feet)
Alternative 2
Debris Cage
(feet)
Alternative 3
Debris Piers
(feet)
Alternative 4
Debris
Sweeper
(feet)
Q100
17,500 cfs 15.61 18.11 14.20 13.90 14.17
QJan2024
1,200 cfs 4.18 6.53 4.18 4.17 4.18
Table 3: Depth at Upstream Side of Stockton Avenue Bridge Existing Conditions and Alternative 5 (Clear Span Bridge) Model
Station
170.36
Existing
Conditions
(feet)
Alternative 5
Clear Span
Bridge
(feet)
Q100
17,500 cfs 11.71 11.91
QJan2024
1,200 cfs 4.02 4.03
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Table 4: Depth 50 feet upstream of Stockton Avenue Bridge Existing Conditions and Alternative 5 (Clear Span Bridge) Model
Station
218.85
Existing
Conditions
(feet)
Alternative 5
Clear Span
Bridge
(feet)
Q100
17,500 cfs 13.06 12.20
QJan2024
1,200 cfs 4.05 4.02
Conclusions
As seen in Tables 1 and 2, above, with the exception of Alternative 1, the debris fin, water surface elevations on the upstream side of the Stockton Avenue Bridge for Alternatives 2 through 4, are within 6” of the existing condition water surface elevations. The debris diversion fin alternative shows an increase in water surface elevation by 1.5’ at the bridge. This increase is due to a partial blockage of the channel by the eastern fin. The blockage is caused by angling the fin toward the creek wall to deflect LWD away from the narrow span underneath the bridge on its east side.

Further upstream, however, water surface elevations associated with debris countermeasure Alternatives 2 through 4 are lower by 1.4 to 1.7 feet than existing conditions for the 100-year event, indicating a relief in backwater conditions due to the change in LWD capture at the bridge. For the lower flow event, there is negligible difference in water surface elevation upstream due to the installation of Alternatives 2 through 4. Backwater effects upstream are exacerbated by the blockage of the channel caused by the eastern fin for both the 100-year and lower flow event.

Tables 3 and 4 provide a comparison of water surface elevations, for the 100-year and lower flow events, between the bridge in Existing Condition, and the Alternative 5 Clear Span Bridge.

Both scenarios were modeled assuming no debris accumulation in order to compare channel capacity. At the upstream side of the bridge, the water surface elevation increases by 0.2’ for the 100-year event and 0.1’ for the lower flow event. While there is a loss of the existing bridge piers in the middle of the channel for the clear span bridge, the clear span bridge has a deeper deck section which becomes submerged on the eastern side during the 100-year event, causing 145
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a constriction in the model. Upstream of the bridge, water surface elevation goes down with Alternative 5. The increased capacity at the channel bottom under the bridge by removal of the existing bridge piers may be alleviating backwater effects upstream in spite of the new, deeper bridge deck being partially submerged during the 100-year event.

It is noted that at the bridge for the existing condition, the 100-year water surface elevation is slightly less (approximately 5”) for the model which includes debris. This is due to a velocity difference in the channel under the bridge. The model with the debris included indicates that water velocity under the bridge is higher under the debris condition, 13.7 +/- feet per second vs.

10.9 +/- feet per second for the no-debris condition. But while water surface is elevated by 0.2’ at the bridge, further upstream, water surface elevation for the 100-year event is decreased. For the lower flow event, changes in water surface elevation between existing condition and Alternative 5, the clear span bridge, are negligible.

When upstream conditions are compared for the Existing Conditions with Debris (the existing bridge with no diversion measures and capturing debris on the existing bridge piers) and Alternative 5 (clear span bridge), the models show an approximately 2.6 feet decrease in water surface elevation.
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Attachment 1
HEC-RAS Model Results Tables

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HEC-RAS Plan: ExCondStead1200 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile E.G. Elev W.S. Elev Crit W.S. Frctn Loss C & E Loss Top Width Q Left Q Channel Q Right Vel Chnl (ft) (ft) (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft/s)
SoquelCreekUP 203.28 PF 1 4.16 4.07 0.00 0.00 120.81 1200.00 2.44 SoquelCreekUP 195.4 PF 1 4.16 4.07 1.45 0.00 0.01 121.47 1200.00 2.44 SoquelCreekUP 170.36 BR U PF 1 4.15 4.01 1.63 0.02 0.01 101.95 1200.00 2.93 SoquelCreekUP 170.36 BR D PF 1 4.11 4.00 1.50 0.00 0.01 115.03 1200.00 2.61 SoquelCreekUP 145.32 PF 1 4.10 4.01 0.00 0.00 126.03 1200.00 2.38 SoquelCreekUP 140.31 PF 1 4.10 4.01 0.00 0.00 124.07 1200.00 2.42 Existing Condition
Q1200
With Debris
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HEC-RAS Plan: ExCondStead1 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile E.G. Elev W.S. Elev Crit W.S. Frctn Loss C & E Loss Top Width Q Left Q Channel Q Right Vel Chnl (ft) (ft) (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft/s)
SoquelCreekUP 203.28 PF 1 14.96 13.25 0.01 0.02 149.14 17500.00 10.47 SoquelCreekUP 195.4 PF 1 14.93 13.16 8.71 0.01 0.34 148.55 17500.00 10.67 SoquelCreekUP 170.36 BR U PF 1 14.58 11.67 9.65 0.20 0.18 115.52 17500.00 13.68 SoquelCreekUP 170.36 BR D PF 1 14.19 11.64 9.13 0.01 0.26 121.12 17500.00 12.80 SoquelCreekUP 145.32 PF 1 13.93 11.89 0.01 0.00 148.64 17500.00 11.45 SoquelCreekUP 140.31 PF 1 13.92 11.87 0.02 0.09 143.71 17500.00 11.47 Existing Condition
Q17500
With Debris
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HEC-RAS Plan: QS 17500 No Debris River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 17500.00 0.00 13.82 15.37 0.001307 10.45 2033.18 289.28 0.51 SoquelCreekUP 447.43 PF 1 17500.00 0.00 13.79 15.36 0.001337 10.50 2018.04 288.34 0.52 SoquelCreekUP 433.47 PF 1 17500.00 0.00 13.81 15.33 0.001355 10.28 2033.95 293.08 0.52 SoquelCreekUP 423.47 PF 1 17500.00 0.00 13.79 15.31 0.001363 10.26 2024.38 290.99 0.52 SoquelCreekUP 413.47 PF 1 17500.00 0.00 13.65 15.29 0.001368 10.69 1996.93 293.06 0.52 SoquelCreekUP 393.46 PF 1 17500.00 0.00 13.72 15.22 0.001374 10.10 2017.60 297.27 0.51 SoquelCreekUP 373.46 PF 1 17500.00 0.00 13.56 15.18 0.001446 10.49 1949.61 302.70 0.53 SoquelCreekUP 353.46 PF 1 17500.00 0.00 13.43 15.14 0.001473 10.74 1890.19 297.99 0.54 SoquelCreekUP 333.46 PF 1 17500.00 0.00 13.41 15.10 0.001469 10.65 1888.57 297.93 0.54 SoquelCreekUP 313.46 PF 1 17500.00 0.00 13.24 15.06 0.001492 10.98 1799.80 294.97 0.55 SoquelCreekUP 293.46 PF 1 17500.00 0.00 13.19 15.03 0.001501 10.95 1737.53 296.86 0.55 SoquelCreekUP 273.46 PF 1 17500.00 0.00 13.17 15.00 0.001486 10.93 1698.64 214.35 0.55 SoquelCreekUP 253.46 PF 1 17500.00 0.00 13.29 14.90 0.001922 10.17 1721.48 194.88 0.60 SoquelCreekUP 245.93 PF 1 17500.00 0.00 13.28 14.88 0.001893 10.13 1727.34 193.41 0.60 SoquelCreekUP 228.95 PF 1 17500.00 0.00 13.20 14.84 0.001874 10.26 1705.25 185.14 0.60 SoquelCreekUP 218.85 PF 1 17500.00 0.00 13.06 14.81 0.001641 10.63 1661.97 171.40 0.57 SoquelCreekUP 211.97 PF 1 17500.00 0.00 13.05 14.80 0.001725 10.60 1651.43 158.21 0.58 SoquelCreekUP 203.28 PF 1 17500.00 0.00 12.97 14.77 0.001666 10.74 1629.34 147.62 0.57 SoquelCreekUP 195.4 PF 1 17500.00 0.00 12.89 8.71 14.74 0.001455 10.91 1603.46 147.53 0.56 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 17500.00 0.00 11.89 13.93 0.001851 11.45 1528.91 148.64 0.60 SoquelCreekUP 140.31 PF 1 17500.00 0.00 11.87 13.92 0.002036 11.47 1525.11 143.71 0.62 SoquelCreekUP 130.3 PF 1 17500.00 0.00 11.45 13.80 0.002425 12.31 1421.37 137.80 0.68 SoquelCreekUP 120.28 PF 1 17500.00 0.00 10.98 13.67 0.002923 13.16 1331.51 137.93 0.74 SoquelCreekUP 110.27 PF 1 17500.00 0.00 10.88 9.27 13.64 0.003633 13.34 1312.21 156.21 0.81 SoquelCreekUP 103.87 PF 1 17500.00 0.00 9.62 9.62 13.50 0.005676 15.80 1111.51 147.73 1.00 SoquelCreekUP 86.16 PF 1 17500.00 0.00 8.15 8.15 12.16 0.005653 16.06 1090.40 139.30 1.00 SoquelCreekUP 76.02 PF 1 17500.00 0.00 7.37 7.37 11.05 0.005689 15.38 1137.69 154.86 1.00 SoquelCreekUP 65.88 PF 1 17500.00 0.00 6.92 6.92 10.38 0.005723 14.92 1173.01 169.85 1.00 SoquelCreekUP 59.74 PF 1 17500.00 0.00 6.73 6.73 10.09 0.005734 14.70 1190.18 177.25 1.00 SoquelCreekUP 49.6 PF 1 17500.00 0.00 6.97 6.49 9.78 0.004561 13.44 1302.23 187.14 0.90 SoquelCreekUP 38.98 PF 1 17500.00 0.00 7.30 9.57 0.003460 12.08 1448.60 198.82 0.79 SoquelCreekUP 28.98 PF 1 17500.00 0.00 7.44 9.46 0.003134 11.41 1533.92 206.96 0.74 SoquelCreekUP 18.98 PF 1 17500.00 0.00 7.23 9.41 0.003478 11.86 1475.24 211.82 0.79 SoquelCreekUP 10 PF 1 17500.00 0.00 7.16 6.26 9.38 0.003730 11.96 1462.96 219.52 0.82 SoquelCreekUP 0 PF 1 17500.00 0.00 6.41 6.41 9.27 0.005792 13.56 1290.64 226.00 1.00 Existing Condition
Q17500
No Debris
150
Item 9 A.

HEC-RAS Plan: PCOpt117500 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile E.G. Elev W.S. Elev Crit W.S. Frctn Loss C & E Loss Top Width Q Left Q Channel Q Right Vel Chnl (ft) (ft) (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft/s)
SoquelCreekUP 203.28 PF 1 18.71 17.95 0.05 0.31 327.16 335.08 17164.93 7.05 SoquelCreekUP 195.4 PF 1 18.35 16.55 12.58 0.01 0.86 235.59 9.77 17490.23 10.77 SoquelCreekUP 170.36 BR U PF 1 17.48 12.82 12.82 0.24 1.06 108.41 17500.00 17.32 SoquelCreekUP 170.36 BR D PF 1 14.19 11.64 9.13 0.01 0.26 121.12 17500.00 12.80 SoquelCreekUP 145.32 PF 1 13.93 11.89 0.01 0.00 148.64 17500.00 11.45 SoquelCreekUP 140.31 PF 1 13.92 11.87 0.02 0.09 143.71 17500.00 11.47 Alternative 1
Q17500
151
Item 9 A.

HEC-RAS Plan: Opt2QS1200 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 1200.00 0.00 4.24 4.35 0.000356 2.68 447.13 105.78 0.23 SoquelCreekUP 447.43 PF 1 1200.00 0.00 4.24 4.35 0.000352 2.67 449.28 106.26 0.23 SoquelCreekUP 433.47 PF 1 1200.00 0.00 4.23 4.34 0.000348 2.65 452.30 107.07 0.23 SoquelCreekUP 423.47 PF 1 1200.00 0.00 4.23 4.34 0.000345 2.64 454.47 107.65 0.23 SoquelCreekUP 413.47 PF 1 1200.00 0.00 4.23 4.34 0.000341 2.63 456.63 108.23 0.23 SoquelCreekUP 393.46 PF 1 1200.00 0.00 4.22 4.33 0.000335 2.60 460.98 109.40 0.22 SoquelCreekUP 373.46 PF 1 1200.00 0.00 4.22 4.32 0.000329 2.58 465.31 110.56 0.22 SoquelCreekUP 353.46 PF 1 1200.00 0.00 4.21 4.31 0.000323 2.56 469.61 111.73 0.22 SoquelCreekUP 333.46 PF 1 1200.00 0.00 4.21 4.31 0.000318 2.53 473.94 112.89 0.22 SoquelCreekUP 313.46 PF 1 1200.00 0.00 4.20 4.30 0.000312 2.51 478.26 114.06 0.22 SoquelCreekUP 293.46 PF 1 1200.00 0.00 4.20 4.29 0.000307 2.49 482.59 115.23 0.21 SoquelCreekUP 273.46 PF 1 1200.00 0.00 4.19 4.29 0.000302 2.46 486.90 116.39 0.21 SoquelCreekUP 253.46 PF 1 1200.00 0.00 4.19 4.28 0.000296 2.44 491.19 117.55 0.21 SoquelCreekUP 245.93 PF 1 1200.00 0.00 4.19 4.28 0.000295 2.43 492.85 117.99 0.21 SoquelCreekUP 228.95 PF 1 1200.00 0.00 4.18 4.27 0.000290 2.42 496.48 118.98 0.21 SoquelCreekUP 218.85 PF 1 1200.00 0.00 4.18 4.27 0.000288 2.41 498.60 119.55 0.21 SoquelCreekUP 216 PF 1 1200.00 0.00 4.18 1.46 4.27 0.000286 2.40 500.05 119.95 0.21 SoquelCreekUP 204.45 Bridge
SoquelCreekUP 193.2 PF 1 1200.00 0.00 4.08 4.17 0.000291 2.43 492.98 121.47 0.21 SoquelCreekUP 193.1 PF 1 1200.00 0.00 4.06 4.16 0.000294 2.44 491.10 121.47 0.21 SoquelCreekUP 193 PF 1 1200.00 0.00 4.05 1.45 4.14 0.000298 2.45 489.17 121.47 0.22 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 1200.00 0.00 4.01 4.10 0.000294 2.38 505.04 126.03 0.21 SoquelCreekUP 140.31 PF 1 1200.00 0.00 4.01 4.10 0.000305 2.42 496.53 124.07 0.21 SoquelCreekUP 130.3 PF 1 1200.00 0.00 4.00 4.09 0.000324 2.48 483.37 121.08 0.22 SoquelCreekUP 120.28 PF 1 1200.00 0.00 3.99 4.09 0.000344 2.55 470.22 118.09 0.23 SoquelCreekUP 110.27 PF 1 1200.00 0.00 3.98 4.08 0.000366 2.62 457.24 115.10 0.23 SoquelCreekUP 103.87 PF 1 1200.00 0.00 3.97 4.08 0.000387 2.69 445.35 112.37 0.24 SoquelCreekUP 86.16 PF 1 1200.00 0.00 3.99 4.07 0.000266 2.26 531.51 133.52 0.20 SoquelCreekUP 76.02 PF 1 1200.00 0.00 4.00 4.06 0.000196 1.95 616.19 154.32 0.17 SoquelCreekUP 65.88 PF 1 1200.00 0.00 4.00 4.05 0.000161 1.77 677.47 169.42 0.16 SoquelCreekUP 59.74 PF 1 1200.00 0.00 4.00 4.05 0.000147 1.70 707.58 176.85 0.15 SoquelCreekUP 49.6 PF 1 1200.00 0.00 4.01 4.05 0.000131 1.61 747.58 186.74 0.14 SoquelCreekUP 38.98 PF 1 1200.00 0.00 4.01 4.04 0.000116 1.51 794.27 198.32 0.13 SoquelCreekUP 28.98 PF 1 1200.00 0.00 4.01 4.04 0.000107 1.46 824.57 206.33 0.13 SoquelCreekUP 18.98 PF 1 1200.00 0.00 4.01 4.04 0.000117 1.49 804.02 206.12 0.13 SoquelCreekUP 10 PF 1 1200.00 0.00 4.00 4.04 0.000123 1.52 791.15 206.16 0.14 SoquelCreekUP 0 PF 1 1200.00 0.00 4.00 1.32 4.04 0.000138 1.57 766.39 209.47 0.14 Alternative 2
Q1200
152
Item 9 A.

HEC-RAS Plan: Opt2QS17500 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 17500.00 0.00 14.85 16.05 0.000950 9.31 2336.19 297.43 0.44 SoquelCreekUP 447.43 PF 1 17500.00 0.00 14.83 16.04 0.000967 9.34 2323.40 296.52 0.44 SoquelCreekUP 433.47 PF 1 17500.00 0.00 14.85 16.01 0.000974 9.13 2343.73 301.52 0.44 SoquelCreekUP 423.47 PF 1 17500.00 0.00 14.84 16.00 0.000985 9.12 2333.31 300.12 0.44 SoquelCreekUP 413.47 PF 1 17500.00 0.00 14.76 15.99 0.000978 9.45 2324.77 301.99 0.44 SoquelCreekUP 393.46 PF 1 17500.00 0.00 14.80 15.94 0.000971 8.95 2341.85 304.84 0.44 SoquelCreekUP 373.46 PF 1 17500.00 0.00 14.71 15.92 0.001003 9.20 2304.51 313.17 0.45 SoquelCreekUP 353.46 PF 1 17500.00 0.00 14.62 15.89 0.001013 9.40 2252.35 308.12 0.45 SoquelCreekUP 333.46 PF 1 17500.00 0.00 14.62 15.86 0.001008 9.30 2253.42 308.92 0.45 SoquelCreekUP 313.46 PF 1 17500.00 0.00 14.49 15.83 0.001006 9.61 2175.55 306.77 0.46 SoquelCreekUP 293.46 PF 1 17500.00 0.00 14.43 15.81 0.001022 9.63 2112.24 308.75 0.46 SoquelCreekUP 273.46 PF 1 17500.00 0.00 14.33 15.78 0.001063 9.81 2025.39 309.02 0.47 SoquelCreekUP 253.46 PF 1 17500.00 0.00 14.46 15.69 0.001364 8.90 2014.82 305.21 0.51 SoquelCreekUP 245.93 PF 1 17500.00 0.00 14.45 15.68 0.001338 8.88 2015.14 301.75 0.51 SoquelCreekUP 228.95 PF 1 17500.00 0.00 14.39 15.65 0.001360 9.02 1967.84 298.82 0.51 SoquelCreekUP 218.85 PF 1 17500.00 0.00 14.20 15.62 0.001192 9.58 1876.80 227.45 0.49 SoquelCreekUP 216 PF 1 17500.00 0.00 14.21 8.78 15.60 0.001349 9.47 1855.09 210.80 0.51 SoquelCreekUP 204.45 Bridge
SoquelCreekUP 193.2 PF 1 17500.00 0.00 13.11 14.89 0.001367 10.71 1633.96 148.35 0.54 SoquelCreekUP 193.1 PF 1 17500.00 0.00 13.00 14.81 0.001411 10.81 1618.60 147.94 0.55 SoquelCreekUP 193 PF 1 17500.00 0.00 12.88 8.71 14.73 0.001457 10.92 1602.85 147.52 0.56 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 17500.00 0.00 11.89 13.93 0.001851 11.45 1528.91 148.64 0.60 SoquelCreekUP 140.31 PF 1 17500.00 0.00 11.87 13.92 0.002036 11.47 1525.11 143.71 0.62 SoquelCreekUP 130.3 PF 1 17500.00 0.00 11.45 13.80 0.002425 12.31 1421.37 137.80 0.68 SoquelCreekUP 120.28 PF 1 17500.00 0.00 10.98 13.67 0.002923 13.16 1331.51 137.93 0.74 SoquelCreekUP 110.27 PF 1 17500.00 0.00 10.88 9.27 13.64 0.003633 13.34 1312.21 156.21 0.81 SoquelCreekUP 103.87 PF 1 17500.00 0.00 9.62 9.62 13.50 0.005676 15.80 1111.51 147.73 1.00 SoquelCreekUP 86.16 PF 1 17500.00 0.00 8.15 8.15 12.16 0.005653 16.06 1090.40 139.30 1.00 SoquelCreekUP 76.02 PF 1 17500.00 0.00 7.37 7.37 11.05 0.005689 15.38 1137.69 154.86 1.00 SoquelCreekUP 65.88 PF 1 17500.00 0.00 6.92 6.92 10.38 0.005723 14.92 1173.01 169.85 1.00 SoquelCreekUP 59.74 PF 1 17500.00 0.00 6.73 6.73 10.09 0.005734 14.70 1190.18 177.25 1.00 SoquelCreekUP 49.6 PF 1 17500.00 0.00 6.97 6.49 9.78 0.004561 13.44 1302.23 187.14 0.90 SoquelCreekUP 38.98 PF 1 17500.00 0.00 7.30 9.57 0.003460 12.08 1448.60 198.82 0.79 SoquelCreekUP 28.98 PF 1 17500.00 0.00 7.44 9.46 0.003134 11.41 1533.92 206.96 0.74 SoquelCreekUP 18.98 PF 1 17500.00 0.00 7.23 9.41 0.003478 11.86 1475.24 211.82 0.79 SoquelCreekUP 10 PF 1 17500.00 0.00 7.16 6.26 9.38 0.003730 11.96 1462.96 219.52 0.82 SoquelCreekUP 0 PF 1 17500.00 0.00 6.41 6.41 9.27 0.005792 13.56 1290.64 226.00 1.00 Alternative 2
Q17500
153
Item 9 A.

HEC-RAS Plan: Opt3QS1200 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 1200.00 0.00 4.23 4.34 0.000359 2.69 445.98 105.77 0.23 SoquelCreekUP 447.43 PF 1 1200.00 0.00 4.23 4.34 0.000355 2.68 448.13 106.26 0.23 SoquelCreekUP 433.47 PF 1 1200.00 0.00 4.22 4.33 0.000351 2.66 451.14 107.07 0.23 SoquelCreekUP 423.47 PF 1 1200.00 0.00 4.22 4.33 0.000348 2.65 453.29 107.65 0.23 SoquelCreekUP 413.47 PF 1 1200.00 0.00 4.22 4.32 0.000344 2.63 455.45 108.23 0.23 SoquelCreekUP 393.46 PF 1 1200.00 0.00 4.21 4.32 0.000338 2.61 459.78 109.39 0.22 SoquelCreekUP 373.46 PF 1 1200.00 0.00 4.21 4.31 0.000332 2.59 464.08 110.56 0.22 SoquelCreekUP 353.46 PF 1 1200.00 0.00 4.20 4.30 0.000326 2.56 468.37 111.72 0.22 SoquelCreekUP 333.46 PF 1 1200.00 0.00 4.20 4.30 0.000320 2.54 472.68 112.89 0.22 SoquelCreekUP 313.46 PF 1 1200.00 0.00 4.19 4.29 0.000315 2.52 476.98 114.05 0.22 SoquelCreekUP 293.46 PF 1 1200.00 0.00 4.19 4.28 0.000309 2.49 481.29 115.23 0.22 SoquelCreekUP 273.46 PF 1 1200.00 0.00 4.18 4.28 0.000304 2.47 485.58 116.38 0.21 SoquelCreekUP 253.46 PF 1 1200.00 0.00 4.18 4.27 0.000299 2.45 489.86 117.55 0.21 SoquelCreekUP 245.93 PF 1 1200.00 0.00 4.17 4.27 0.000297 2.44 491.51 117.99 0.21 SoquelCreekUP 228.95 PF 1 1200.00 0.00 4.17 4.26 0.000293 2.42 495.12 118.98 0.21 SoquelCreekUP 218.85 PF 1 1200.00 0.00 4.17 1.46 4.26 0.000291 2.41 497.23 119.55 0.21 SoquelCreekUP 205.45 Bridge
SoquelCreekUP 193.2 PF 1 1200.00 0.00 4.08 4.17 0.000291 2.43 492.98 121.47 0.21 SoquelCreekUP 193.1 PF 1 1200.00 0.00 4.06 4.16 0.000294 2.44 491.10 121.47 0.21 SoquelCreekUP 193 PF 1 1200.00 0.00 4.05 1.45 4.14 0.000298 2.45 489.17 121.47 0.22 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 1200.00 0.00 4.01 4.10 0.000294 2.38 505.04 126.03 0.21 SoquelCreekUP 140.31 PF 1 1200.00 0.00 4.01 4.10 0.000305 2.42 496.53 124.07 0.21 SoquelCreekUP 130.3 PF 1 1200.00 0.00 4.00 4.09 0.000324 2.48 483.37 121.08 0.22 SoquelCreekUP 120.28 PF 1 1200.00 0.00 3.99 4.09 0.000344 2.55 470.22 118.09 0.23 SoquelCreekUP 110.27 PF 1 1200.00 0.00 3.98 4.08 0.000366 2.62 457.24 115.10 0.23 SoquelCreekUP 103.87 PF 1 1200.00 0.00 3.97 4.08 0.000387 2.69 445.35 112.37 0.24 SoquelCreekUP 86.16 PF 1 1200.00 0.00 3.99 4.07 0.000266 2.26 531.51 133.52 0.20 SoquelCreekUP 76.02 PF 1 1200.00 0.00 4.00 4.06 0.000196 1.95 616.19 154.32 0.17 SoquelCreekUP 65.88 PF 1 1200.00 0.00 4.00 4.05 0.000161 1.77 677.47 169.42 0.16 SoquelCreekUP 59.74 PF 1 1200.00 0.00 4.00 4.05 0.000147 1.70 707.58 176.85 0.15 SoquelCreekUP 49.6 PF 1 1200.00 0.00 4.01 4.05 0.000131 1.61 747.58 186.74 0.14 SoquelCreekUP 38.98 PF 1 1200.00 0.00 4.01 4.04 0.000116 1.51 794.27 198.32 0.13 SoquelCreekUP 28.98 PF 1 1200.00 0.00 4.01 4.04 0.000107 1.46 824.57 206.33 0.13 SoquelCreekUP 18.98 PF 1 1200.00 0.00 4.01 4.04 0.000117 1.49 804.02 206.12 0.13 SoquelCreekUP 10 PF 1 1200.00 0.00 4.00 4.04 0.000123 1.52 791.15 206.16 0.14 SoquelCreekUP 0 PF 1 1200.00 0.00 4.00 1.32 4.04 0.000138 1.57 766.39 209.47 0.14 Alternative 3
Q1200
154
Item 9 A.

HEC-RAS Plan: Opt3QS17500 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 17500.00 0.00 14.58 15.87 0.001029 9.59 2257.76 295.35 0.46 SoquelCreekUP 447.43 PF 1 17500.00 0.00 14.57 15.86 0.001048 9.62 2244.73 294.44 0.46 SoquelCreekUP 433.47 PF 1 17500.00 0.00 14.58 15.83 0.001057 9.41 2263.94 299.38 0.46 SoquelCreekUP 423.47 PF 1 17500.00 0.00 14.57 15.82 0.001068 9.39 2253.59 297.72 0.46 SoquelCreekUP 413.47 PF 1 17500.00 0.00 14.48 15.80 0.001062 9.74 2241.30 299.66 0.46 SoquelCreekUP 393.46 PF 1 17500.00 0.00 14.53 15.75 0.001058 9.22 2259.18 302.91 0.45 SoquelCreekUP 373.46 PF 1 17500.00 0.00 14.43 15.72 0.001096 9.50 2215.17 310.58 0.47 SoquelCreekUP 353.46 PF 1 17500.00 0.00 14.33 15.69 0.001108 9.71 2161.81 305.54 0.47 SoquelCreekUP 333.46 PF 1 17500.00 0.00 14.32 15.66 0.001104 9.61 2162.26 306.20 0.47 SoquelCreekUP 313.46 PF 1 17500.00 0.00 14.18 15.63 0.001106 9.93 2081.84 304.14 0.48 SoquelCreekUP 293.46 PF 1 17500.00 0.00 14.13 15.61 0.001122 9.94 2018.54 306.06 0.48 SoquelCreekUP 273.46 PF 1 17500.00 0.00 14.02 15.57 0.001167 10.13 1929.74 306.18 0.49 SoquelCreekUP 253.46 PF 1 17500.00 0.00 14.16 15.48 0.001518 9.22 1922.52 301.62 0.54 SoquelCreekUP 245.93 PF 1 17500.00 0.00 14.15 15.46 0.001492 9.19 1923.76 298.84 0.53 SoquelCreekUP 228.95 PF 1 17500.00 0.00 14.08 15.43 0.001511 9.33 1881.73 253.06 0.54 SoquelCreekUP 218.85 PF 1 17500.00 0.00 13.90 8.78 15.40 0.001292 9.84 1813.46 191.79 0.51 SoquelCreekUP 205.45 Bridge
SoquelCreekUP 193.2 PF 1 17500.00 0.00 13.11 14.89 0.001367 10.71 1633.96 148.35 0.54 SoquelCreekUP 193.1 PF 1 17500.00 0.00 13.00 14.81 0.001411 10.81 1618.60 147.94 0.55 SoquelCreekUP 193 PF 1 17500.00 0.00 12.88 8.71 14.73 0.001457 10.92 1602.85 147.52 0.56 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 17500.00 0.00 11.89 13.93 0.001851 11.45 1528.91 148.64 0.60 SoquelCreekUP 140.31 PF 1 17500.00 0.00 11.87 13.92 0.002036 11.47 1525.11 143.71 0.62 SoquelCreekUP 130.3 PF 1 17500.00 0.00 11.45 13.80 0.002425 12.31 1421.37 137.80 0.68 SoquelCreekUP 120.28 PF 1 17500.00 0.00 10.98 13.67 0.002923 13.16 1331.51 137.93 0.74 SoquelCreekUP 110.27 PF 1 17500.00 0.00 10.88 9.27 13.64 0.003633 13.34 1312.21 156.21 0.81 SoquelCreekUP 103.87 PF 1 17500.00 0.00 9.62 9.62 13.50 0.005676 15.80 1111.51 147.73 1.00 SoquelCreekUP 86.16 PF 1 17500.00 0.00 8.15 8.15 12.16 0.005653 16.06 1090.40 139.30 1.00 SoquelCreekUP 76.02 PF 1 17500.00 0.00 7.37 7.37 11.05 0.005689 15.38 1137.69 154.86 1.00 SoquelCreekUP 65.88 PF 1 17500.00 0.00 6.92 6.92 10.38 0.005723 14.92 1173.01 169.85 1.00 SoquelCreekUP 59.74 PF 1 17500.00 0.00 6.73 6.73 10.09 0.005734 14.70 1190.18 177.25 1.00 SoquelCreekUP 49.6 PF 1 17500.00 0.00 6.97 6.49 9.78 0.004561 13.44 1302.23 187.14 0.90 SoquelCreekUP 38.98 PF 1 17500.00 0.00 7.30 9.57 0.003460 12.08 1448.60 198.82 0.79 SoquelCreekUP 28.98 PF 1 17500.00 0.00 7.44 9.46 0.003134 11.41 1533.92 206.96 0.74 SoquelCreekUP 18.98 PF 1 17500.00 0.00 7.23 9.41 0.003478 11.86 1475.24 211.82 0.79 SoquelCreekUP 10 PF 1 17500.00 0.00 7.16 6.26 9.38 0.003730 11.96 1462.96 219.52 0.82 SoquelCreekUP 0 PF 1 17500.00 0.00 6.41 6.41 9.27 0.005792 13.56 1290.64 226.00 1.00 Alternative 3
Q17500
155
Item 9 A.

HEC-RAS Plan: Opt4QS1200 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 1200.00 0.00 4.24 4.35 0.000357 2.69 446.84 105.78 0.23 SoquelCreekUP 447.43 PF 1 1200.00 0.00 4.23 4.35 0.000353 2.67 448.99 106.26 0.23 SoquelCreekUP 433.47 PF 1 1200.00 0.00 4.23 4.34 0.000349 2.65 452.00 107.07 0.23 SoquelCreekUP 423.47 PF 1 1200.00 0.00 4.23 4.34 0.000345 2.64 454.17 107.65 0.23 SoquelCreekUP 413.47 PF 1 1200.00 0.00 4.23 4.33 0.000342 2.63 456.33 108.23 0.23 SoquelCreekUP 393.46 PF 1 1200.00 0.00 4.22 4.33 0.000336 2.60 460.67 109.39 0.22 SoquelCreekUP 373.46 PF 1 1200.00 0.00 4.21 4.32 0.000330 2.58 464.99 110.56 0.22 SoquelCreekUP 353.46 PF 1 1200.00 0.00 4.21 4.31 0.000324 2.56 469.29 111.73 0.22 SoquelCreekUP 333.46 PF 1 1200.00 0.00 4.20 4.30 0.000318 2.53 473.62 112.89 0.22 SoquelCreekUP 313.46 PF 1 1200.00 0.00 4.20 4.30 0.000313 2.51 477.93 114.06 0.22 SoquelCreekUP 293.46 PF 1 1200.00 0.00 4.19 4.29 0.000307 2.49 482.25 115.23 0.21 SoquelCreekUP 273.46 PF 1 1200.00 0.00 4.19 4.28 0.000302 2.47 486.56 116.39 0.21 SoquelCreekUP 253.46 PF 1 1200.00 0.00 4.18 4.28 0.000297 2.44 490.85 117.55 0.21 SoquelCreekUP 245.93 PF 1 1200.00 0.00 4.18 4.27 0.000295 2.44 492.50 117.99 0.21 SoquelCreekUP 228.95 PF 1 1200.00 0.00 4.18 4.27 0.000291 2.42 496.13 118.98 0.21 SoquelCreekUP 218.85 PF 1 1200.00 0.00 4.18 4.27 0.000289 2.41 498.25 119.55 0.21 SoquelCreekUP 216 PF 1 1200.00 0.00 4.17 4.26 0.000289 2.41 498.01 119.55 0.21 SoquelCreekUP 211.97 PF 1 1200.00 0.00 4.17 4.26 0.000287 2.40 499.45 119.95 0.21 SoquelCreekUP 206 PF 1 1200.00 0.00 4.17 4.26 0.000284 2.39 502.91 120.83 0.21 SoquelCreekUP 203.28 PF 1 1200.00 0.00 4.17 4.26 0.000284 2.39 502.62 120.83 0.21 SoquelCreekUP 199 PF 1 1200.00 0.00 4.17 1.45 4.25 0.000271 2.38 503.49 121.48 0.21 SoquelCreekUP 196.94 Bridge
SoquelCreekUP 193.2 PF 1 1200.00 0.00 4.10 4.19 0.000286 2.42 495.52 121.47 0.21 SoquelCreekUP 193.1 PF 1 1200.00 0.00 4.08 4.18 0.000289 2.43 493.68 121.47 0.21 SoquelCreekUP 193 PF 1 1200.00 0.00 4.07 1.45 4.16 0.000293 2.44 491.76 121.47 0.21 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 1200.00 0.00 4.01 4.10 0.000294 2.38 505.04 126.03 0.21 SoquelCreekUP 140.31 PF 1 1200.00 0.00 4.01 4.10 0.000305 2.42 496.53 124.07 0.21 SoquelCreekUP 130.3 PF 1 1200.00 0.00 4.00 4.09 0.000324 2.48 483.37 121.08 0.22 SoquelCreekUP 120.28 PF 1 1200.00 0.00 3.99 4.09 0.000344 2.55 470.22 118.09 0.23 SoquelCreekUP 110.27 PF 1 1200.00 0.00 3.98 4.08 0.000366 2.62 457.24 115.10 0.23 SoquelCreekUP 103.87 PF 1 1200.00 0.00 3.97 4.08 0.000387 2.69 445.35 112.37 0.24 SoquelCreekUP 86.16 PF 1 1200.00 0.00 3.99 4.07 0.000266 2.26 531.51 133.52 0.20 SoquelCreekUP 76.02 PF 1 1200.00 0.00 4.00 4.06 0.000196 1.95 616.19 154.32 0.17 SoquelCreekUP 65.88 PF 1 1200.00 0.00 4.00 4.05 0.000161 1.77 677.47 169.42 0.16 SoquelCreekUP 59.74 PF 1 1200.00 0.00 4.00 4.05 0.000147 1.70 707.58 176.85 0.15 SoquelCreekUP 49.6 PF 1 1200.00 0.00 4.01 4.05 0.000131 1.61 747.58 186.74 0.14 SoquelCreekUP 38.98 PF 1 1200.00 0.00 4.01 4.04 0.000116 1.51 794.27 198.32 0.13 SoquelCreekUP 28.98 PF 1 1200.00 0.00 4.01 4.04 0.000107 1.46 824.57 206.33 0.13 SoquelCreekUP 18.98 PF 1 1200.00 0.00 4.01 4.04 0.000117 1.49 804.02 206.12 0.13 SoquelCreekUP 10 PF 1 1200.00 0.00 4.00 4.04 0.000123 1.52 791.15 206.16 0.14 SoquelCreekUP 0 PF 1 1200.00 0.00 4.00 1.32 4.04 0.000138 1.57 766.39 209.47 0.14 Alternative 4
Q1200
156
Item 9 A.

HEC-RAS Plan: Opt4QS17500 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 17500.00 0.00 14.82 16.03 0.000957 9.34 2328.16 297.23 0.44 SoquelCreekUP 447.43 PF 1 17500.00 0.00 14.80 16.02 0.000975 9.37 2315.35 296.31 0.45 SoquelCreekUP 433.47 PF 1 17500.00 0.00 14.82 15.99 0.000982 9.16 2335.57 301.30 0.45 SoquelCreekUP 423.47 PF 1 17500.00 0.00 14.81 15.99 0.000993 9.15 2325.16 299.87 0.45 SoquelCreekUP 413.47 PF 1 17500.00 0.00 14.73 15.97 0.000986 9.47 2316.26 301.75 0.44 SoquelCreekUP 393.46 PF 1 17500.00 0.00 14.77 15.92 0.000979 8.98 2333.41 304.64 0.44 SoquelCreekUP 373.46 PF 1 17500.00 0.00 14.68 15.89 0.001012 9.23 2295.41 312.91 0.45 SoquelCreekUP 353.46 PF 1 17500.00 0.00 14.59 15.87 0.001022 9.43 2243.15 307.86 0.45 SoquelCreekUP 333.46 PF 1 17500.00 0.00 14.59 15.84 0.001017 9.34 2244.16 308.64 0.45 SoquelCreekUP 313.46 PF 1 17500.00 0.00 14.46 15.81 0.001016 9.64 2166.05 306.51 0.46 SoquelCreekUP 293.46 PF 1 17500.00 0.00 14.40 15.79 0.001032 9.66 2102.58 308.47 0.46 SoquelCreekUP 273.46 PF 1 17500.00 0.00 14.30 15.76 0.001073 9.84 2015.51 308.73 0.47 SoquelCreekUP 253.46 PF 1 17500.00 0.00 14.43 15.67 0.001379 8.93 2005.27 304.83 0.52 SoquelCreekUP 245.93 PF 1 17500.00 0.00 14.42 15.65 0.001353 8.91 2005.69 301.45 0.51 SoquelCreekUP 228.95 PF 1 17500.00 0.00 14.35 15.63 0.001375 9.06 1958.40 298.51 0.52 SoquelCreekUP 218.85 PF 1 17500.00 0.00 14.17 15.60 0.001203 9.61 1869.82 225.95 0.49 SoquelCreekUP 216 PF 1 17500.00 0.00 14.16 15.59 0.001206 9.62 1867.36 225.42 0.49 SoquelCreekUP 211.97 PF 1 17500.00 0.00 14.17 15.57 0.001366 9.50 1846.33 209.10 0.52 SoquelCreekUP 206 PF 1 17500.00 0.00 14.06 15.54 0.001281 9.76 1792.39 175.32 0.50 SoquelCreekUP 203.28 PF 1 17500.00 0.00 14.04 15.53 0.001285 9.77 1790.35 174.81 0.51 SoquelCreekUP 199 PF 1 17500.00 0.00 13.93 8.71 15.49 0.001099 10.03 1744.56 151.65 0.49 SoquelCreekUP 196.94 Bridge
SoquelCreekUP 193.2 PF 1 17500.00 0.00 13.36 15.07 0.001278 10.50 1667.22 149.36 0.53 SoquelCreekUP 193.1 PF 1 17500.00 0.00 13.26 15.00 0.001314 10.58 1653.42 148.95 0.53 SoquelCreekUP 193 PF 1 17500.00 0.00 13.14 8.71 14.92 0.001355 10.68 1638.31 148.49 0.54 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 17500.00 0.00 11.89 13.93 0.001851 11.45 1528.91 148.64 0.60 SoquelCreekUP 140.31 PF 1 17500.00 0.00 11.87 13.92 0.002036 11.47 1525.11 143.71 0.62 SoquelCreekUP 130.3 PF 1 17500.00 0.00 11.45 13.80 0.002425 12.31 1421.37 137.80 0.68 SoquelCreekUP 120.28 PF 1 17500.00 0.00 10.98 13.67 0.002923 13.16 1331.51 137.93 0.74 SoquelCreekUP 110.27 PF 1 17500.00 0.00 10.88 9.27 13.64 0.003633 13.34 1312.21 156.21 0.81 SoquelCreekUP 103.87 PF 1 17500.00 0.00 9.62 9.62 13.50 0.005676 15.80 1111.51 147.73 1.00 SoquelCreekUP 86.16 PF 1 17500.00 0.00 8.15 8.15 12.16 0.005653 16.06 1090.40 139.30 1.00 SoquelCreekUP 76.02 PF 1 17500.00 0.00 7.37 7.37 11.05 0.005689 15.38 1137.69 154.86 1.00 SoquelCreekUP 65.88 PF 1 17500.00 0.00 6.92 6.92 10.38 0.005723 14.92 1173.01 169.85 1.00 SoquelCreekUP 59.74 PF 1 17500.00 0.00 6.73 6.73 10.09 0.005734 14.70 1190.18 177.25 1.00 SoquelCreekUP 49.6 PF 1 17500.00 0.00 6.97 6.49 9.78 0.004561 13.44 1302.23 187.14 0.90 SoquelCreekUP 38.98 PF 1 17500.00 0.00 7.30 9.57 0.003460 12.08 1448.60 198.82 0.79 SoquelCreekUP 28.98 PF 1 17500.00 0.00 7.44 9.46 0.003134 11.41 1533.92 206.96 0.74 Alternative 4
Q17500
157
Item 9 A.

HEC-RAS Plan: Opt4QS17500 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 (Continued) Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 18.98 PF 1 17500.00 0.00 7.23 9.41 0.003478 11.86 1475.24 211.82 0.79 SoquelCreekUP 10 PF 1 17500.00 0.00 7.16 6.26 9.38 0.003730 11.96 1462.96 219.52 0.82 SoquelCreekUP 0 PF 1 17500.00 0.00 6.41 6.41 9.27 0.005792 13.56 1290.64 226.00 1.00 Alternative 4
Q17500
158
Item 9 A.

HEC-RAS Plan: Opt5QS1200 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 1200.00 0.00 4.10 4.22 0.000397 2.78 432.30 105.69 0.24 SoquelCreekUP 447.43 PF 1 1200.00 0.00 4.10 4.22 0.000393 2.76 434.34 106.24 0.24 SoquelCreekUP 433.47 PF 1 1200.00 0.00 4.09 4.21 0.000388 2.74 437.19 107.04 0.24 SoquelCreekUP 423.47 PF 1 1200.00 0.00 4.09 4.21 0.000385 2.73 439.23 107.63 0.24 SoquelCreekUP 413.47 PF 1 1200.00 0.00 4.09 4.20 0.000381 2.72 441.27 108.21 0.24 SoquelCreekUP 393.46 PF 1 1200.00 0.00 4.08 4.19 0.000375 2.69 445.38 109.37 0.24 SoquelCreekUP 373.46 PF 1 1200.00 0.00 4.07 4.18 0.000368 2.67 449.45 110.53 0.23 SoquelCreekUP 353.46 PF 1 1200.00 0.00 4.07 4.18 0.000362 2.65 453.51 111.70 0.23 SoquelCreekUP 333.46 PF 1 1200.00 0.00 4.06 4.17 0.000356 2.62 457.59 112.86 0.23 SoquelCreekUP 313.46 PF 1 1200.00 0.00 4.06 4.16 0.000350 2.60 461.66 114.03 0.23 SoquelCreekUP 293.46 PF 1 1200.00 0.00 4.05 4.15 0.000344 2.58 465.74 115.20 0.23 SoquelCreekUP 273.46 PF 1 1200.00 0.00 4.04 4.15 0.000339 2.55 469.80 116.36 0.22 SoquelCreekUP 253.46 PF 1 1200.00 0.00 4.04 4.14 0.000333 2.53 473.84 117.53 0.22 SoquelCreekUP 245.93 PF 1 1200.00 0.00 4.04 4.14 0.000331 2.52 475.40 117.97 0.22 SoquelCreekUP 228.95 PF 1 1200.00 0.00 4.03 4.13 0.000327 2.51 478.81 118.96 0.22 SoquelCreekUP 218.85 PF 1 1200.00 0.00 4.03 4.13 0.000324 2.50 480.82 119.53 0.22 SoquelCreekUP 211.97 PF 1 1200.00 0.00 4.03 4.12 0.000322 2.49 482.18 119.92 0.22 SoquelCreekUP 203.28 PF 1 1200.00 0.00 4.03 4.12 0.000318 2.47 485.48 120.80 0.22 SoquelCreekUP 195.4 PF 1 1200.00 0.00 4.02 1.45 4.12 0.000304 2.47 486.29 121.46 0.22 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 1200.00 0.00 4.01 4.10 0.000294 2.38 505.04 126.03 0.21 SoquelCreekUP 140.31 PF 1 1200.00 0.00 4.01 4.10 0.000305 2.42 496.53 124.07 0.21 SoquelCreekUP 130.3 PF 1 1200.00 0.00 4.00 4.09 0.000324 2.48 483.37 121.08 0.22 SoquelCreekUP 120.28 PF 1 1200.00 0.00 3.99 4.09 0.000344 2.55 470.22 118.09 0.23 SoquelCreekUP 110.27 PF 1 1200.00 0.00 3.98 4.08 0.000366 2.62 457.24 115.10 0.23 SoquelCreekUP 103.87 PF 1 1200.00 0.00 3.97 4.08 0.000387 2.69 445.35 112.37 0.24 SoquelCreekUP 86.16 PF 1 1200.00 0.00 3.99 4.07 0.000266 2.26 531.51 133.52 0.20 SoquelCreekUP 76.02 PF 1 1200.00 0.00 4.00 4.06 0.000196 1.95 616.19 154.32 0.17 SoquelCreekUP 65.88 PF 1 1200.00 0.00 4.00 4.05 0.000161 1.77 677.47 169.42 0.16 SoquelCreekUP 59.74 PF 1 1200.00 0.00 4.00 4.05 0.000147 1.70 707.58 176.85 0.15 SoquelCreekUP 49.6 PF 1 1200.00 0.00 4.01 4.05 0.000131 1.61 747.58 186.74 0.14 SoquelCreekUP 38.98 PF 1 1200.00 0.00 4.01 4.04 0.000116 1.51 794.27 198.32 0.13 SoquelCreekUP 28.98 PF 1 1200.00 0.00 4.01 4.04 0.000107 1.46 824.57 206.33 0.13 SoquelCreekUP 18.98 PF 1 1200.00 0.00 4.01 4.04 0.000117 1.49 804.02 206.12 0.13 SoquelCreekUP 10 PF 1 1200.00 0.00 4.00 4.04 0.000123 1.52 791.15 206.16 0.14 SoquelCreekUP 0 PF 1 1200.00 0.00 4.00 1.32 4.04 0.000138 1.57 766.39 209.47 0.14 Alternative 5
Q1200
159
Item 9 A.

HEC-RAS Plan: Opt5QS17500 River: SoquelCreek Reach: SoquelCreekUP Profile: PF 1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft)
SoquelCreekUP 457.43 PF 1 17500.00 0.00 13.13 15.00 0.001634 11.32 1836.27 283.91 0.57 SoquelCreekUP 447.43 PF 1 17500.00 0.00 13.09 14.98 0.001679 11.39 1817.73 282.83 0.58 SoquelCreekUP 433.47 PF 1 17500.00 0.00 13.11 14.94 0.001713 11.17 1830.46 287.45 0.58 SoquelCreekUP 423.47 PF 1 17500.00 0.00 13.09 14.92 0.001725 11.15 1821.71 285.66 0.58 SoquelCreekUP 413.47 PF 1 17500.00 0.00 12.87 14.89 0.001762 11.71 1769.96 287.16 0.58 SoquelCreekUP 393.46 PF 1 17500.00 0.00 12.97 14.79 0.001780 11.05 1794.74 292.15 0.58 SoquelCreekUP 373.46 PF 1 17500.00 0.00 12.70 14.73 0.001920 11.59 1694.13 294.87 0.60 SoquelCreekUP 353.46 PF 1 17500.00 0.00 12.52 9.23 14.68 0.001986 11.92 1622.94 290.55 0.62 SoquelCreekUP 333.46 PF 1 17500.00 0.00 12.50 9.15 14.63 0.001981 11.82 1619.37 289.58 0.62 SoquelCreekUP 313.46 PF 1 17500.00 0.00 12.33 9.10 14.58 0.001999 12.09 1536.21 254.15 0.62 SoquelCreekUP 293.46 PF 1 17500.00 0.00 12.34 14.52 0.001936 11.86 1532.54 200.49 0.62 SoquelCreekUP 273.46 PF 1 17500.00 0.00 12.31 14.47 0.001912 11.82 1532.60 184.58 0.61 SoquelCreekUP 253.46 PF 1 17500.00 0.00 12.41 14.37 0.002435 11.24 1556.87 179.15 0.67 SoquelCreekUP 245.93 PF 1 17500.00 0.00 12.40 14.34 0.002365 11.19 1563.72 177.11 0.66 SoquelCreekUP 228.95 PF 1 17500.00 0.00 12.32 14.31 0.002315 11.29 1549.77 169.75 0.66 SoquelCreekUP 218.85 PF 1 17500.00 0.00 12.20 14.27 0.002117 11.54 1520.05 161.74 0.64 SoquelCreekUP 211.97 PF 1 17500.00 0.00 12.20 14.26 0.002138 11.52 1519.73 150.45 0.64 SoquelCreekUP 203.28 PF 1 17500.00 0.00 12.14 14.23 0.002074 11.61 1507.90 143.18 0.63 SoquelCreekUP 195.4 PF 1 17500.00 0.00 12.08 8.71 14.21 0.001841 11.71 1494.36 143.82 0.62 SoquelCreekUP 170.36 Bridge
SoquelCreekUP 145.32 PF 1 17500.00 0.00 11.89 13.93 0.001851 11.45 1528.91 148.64 0.60 SoquelCreekUP 140.31 PF 1 17500.00 0.00 11.87 13.92 0.002036 11.47 1525.11 143.71 0.62 SoquelCreekUP 130.3 PF 1 17500.00 0.00 11.45 13.80 0.002425 12.31 1421.37 137.80 0.68 SoquelCreekUP 120.28 PF 1 17500.00 0.00 10.98 13.67 0.002923 13.16 1331.51 137.93 0.74 SoquelCreekUP 110.27 PF 1 17500.00 0.00 10.88 9.27 13.64 0.003633 13.34 1312.21 156.21 0.81 SoquelCreekUP 103.87 PF 1 17500.00 0.00 9.62 9.62 13.50 0.005676 15.80 1111.51 147.73 1.00 SoquelCreekUP 86.16 PF 1 17500.00 0.00 8.15 8.15 12.16 0.005653 16.06 1090.40 139.30 1.00 SoquelCreekUP 76.02 PF 1 17500.00 0.00 7.37 7.37 11.05 0.005689 15.38 1137.69 154.86 1.00 SoquelCreekUP 65.88 PF 1 17500.00 0.00 6.92 6.92 10.38 0.005723 14.92 1173.01 169.85 1.00 SoquelCreekUP 59.74 PF 1 17500.00 0.00 6.73 6.73 10.09 0.005734 14.70 1190.18 177.25 1.00 SoquelCreekUP 49.6 PF 1 17500.00 0.00 6.97 6.49 9.78 0.004561 13.44 1302.23 187.14 0.90 SoquelCreekUP 38.98 PF 1 17500.00 0.00 7.30 9.57 0.003460 12.08 1448.60 198.82 0.79 SoquelCreekUP 28.98 PF 1 17500.00 0.00 7.44 9.46 0.003134 11.41 1533.92 206.96 0.74 SoquelCreekUP 18.98 PF 1 17500.00 0.00 7.23 9.41 0.003478 11.86 1475.24 211.82 0.79 SoquelCreekUP 10 PF 1 17500.00 0.00 7.16 6.26 9.38 0.003730 11.96 1462.96 219.52 0.82 SoquelCreekUP 0 PF 1 17500.00 0.00 6.41 6.41 9.27 0.005792 13.56 1290.64 226.00 1.00 Alternative 5
Q17500
160
Item 9 A.

Attachment 2
HEC-RAS Model Cross Section Plots
161
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
ExCond Plan: ExCondSteadFlowQ1200 6/27/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Crit PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Existing Conditions Q1200
162
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
ExCond Plan: ExCondSteadFlowQ1200 6/27/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Crit PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Existing Conditions Q1200
163
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 ExCond Plan: ExCondSteadFlowQ1200 6/27/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Existing Conditions Q1200
164
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
ExCond Plan: ExCondSteadFlow 6/27/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Crit PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Existing Conditions Q17500
165
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
ExCond Plan: ExCondSteadFlow 6/27/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Crit PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Existing Conditions Q17500
166
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 ExCond Plan: ExCondSteadFlow 6/27/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Existing Conditions Q17500
167
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
ExCondNoDebrisPier Plan: ExConQ17500SNoDebris 6/28/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Crit PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Existing Conditions - No Debris
168
Item 9 A.
0 100 200 300 400 500 600
0 5
10 15
20 25
30 35
ProCondOp1 Plan: SteadQP17500 6/28/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Ground
Bank Sta
.036 .026 .036
Alternative 1
169
Item 9 A.
0 100 200 300 400 500 600
0 5
10 15
20 25
30 35
ProCondOp1 Plan: SteadQP17500 6/28/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Ground
Bank Sta
.036 .026 .036
Alternative 1
170
Item 9 A.
0 100 200 300 400 500 600
0 5
10 15
20 25
30 35
ProCondOp1 Plan: SteadQP17500 6/28/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Alternative 1
171
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
ProCondOp1 Plan: SteadQP17500 6/28/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Crit PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Alternative 1
172
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
ProCondOp1 Plan: SteadQP17500 6/28/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Crit PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Alternative 1
173
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 ProCondOp1 Plan: SteadQP17500 6/28/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Alternative 1
174
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
ProCondOp1 Plan: Opt1Q1200Stead 6/28/2024

Station (ft) Elevation (ft)
Legend
EG PF 1
WS PF 1
Crit PF 1
Ground
Ineff
Bank Sta
.036 .026 .036
Alternative 1
175
Item 9 A.
0 100 200 300 400 500
0 5
10 15
20 25
30 35
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CSWST2.com
CSWST2 | 303 Twin Dolphin Drive Redwood Shores, 6th Floor, Redwood City, CA 94065 | t. 415.883.9850 Attachment 3
Supplemental Structural Condition Evaluation
237
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FINAL DRAFT

MEMORANDUM
TO: Julia Harberson, PE, Project Manager
CSWST2
Date: March 31, 2026
Job No: 2024083
FROM: Thomas L. Swayze, SE
Biggs Cardosa Associates, Inc.

SUBJECT: Stockton Avenue Bridge at Soquel Creek (Bridge No. 36C0110) Capitola, California
Supplemental Structural Condition Evaluation

EXECUTIVE SUMMARY
The City of Capitola has suffered ongoing seasonal accumulation of storm debris at the Stockton Avenue Bridge (Br. No. 36C0110) and has performed emergency repairs of spalling and reinforcement corrosion at abutments and superstructure. To assess the overall condition of the bridge, the City has requested evaluation of its structural condition.

CSWST2 has been contracted by the City to provide this evaluation based on field observations and existing records. Biggs Cardosa Associates (BCA) has provided structural commentary based on field observations on July 16, 2025, and March 12, 2026.

The following documents were provided for our review:
• Structural Plans Sheets 1-4 Capitola Bridge over Soquel Creek, dated October 23,1933
• Caltrans Bridge Inspection Reports, dated May 8, 2022, September 17, 2021, September 25,2019, September 1, 2015, September 9, 2013, October 5, 2011, October 1, 2009, May 8, 2007, May 25, 2005, May 7, 2003, May 2, 2001, and August 10, 1999
• Caltrans Summary Load Rating Sheet dated September 3, 2019 • Emergency Coastal Development Permit from the California Coastal Commission, Emergency CDP G-3-23-0065 (Stockton Avenue Bridge, dated October 2, 2023 • City of Capitola Special Provisions and Plans for Construction of Capitola Bridge over Soquel Creek (Stockton Bridge) Repairs, Federal Project No. ER-15J7(85), dated December 5, 2023
238
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Stockton Avenue Bridge
Structural Condition Evaluation

The Stockton Avenue Bridge is a cast-in-place concrete continuous 3-span parabolically arched box girder structure with mild reinforcement. The span configuration is an 85-foot center span with two 25-foot cantilevered end spans and two 15-foot-long bin abutments. The two end spans are cantilevered from the concrete piers in Soquel Creek for superstructure span configuration) and are separated structurally from a bin abutment at each end. The piers are supported on reinforced concrete pile caps and timber piles. Timber piles at the piers are a combination of vertical piles and longitudinally battered piles. The existing traveled way between curbs is 30 feet.

Upstream Elevation from As-builts
The storms of January 2023 caused a portion of the slope protection and sidewalk at the abutments to crack. The plans developed later that year indicate a repair of the abutment walkway cracking and patching of concrete spalls on the pier walls. Some of those spalls were noted in previous bridge inspection reports. CSWST2 was contracted by the City to provide alternatives for installation measures to prevent storm debris accumulation at the Stockton Avenue Bridge. CSWST2 developed five alternatives for consideration in June 2024. The first four alternatives provided economically varying hydraulic solutions by retrofitting the existing structure through different configurations and methods. BCA provided a structural summary for each alternative in that initial memorandum. The last alternative, Alternative 5, proposed to replace the bridge entirely. Given the hydraulic vulnerabilities, the age of the structure, the proximity to the ocean, as well as a review of several existing bridge inspection reports that discussed transverse deck cracking, we determined that further condition investigation of the underside of the bridge deck was warranted prior to recommending full replacement.

Existing Conditions
BCA performed site visits on July 16, 2025, and March 12, 2026, to observe the existing superstructure condition. During the initial July 2025 site visit, the existing manholes in the sidewalk and at the center of the roadway were opened for observation of the underside of the existing deck. Corroding reinforcement and spalling was observed in several locations under the 239
Item 9 A.

Stockton Avenue Bridge
Structural Condition Evaluation

sidewalk. The underside of the bridge deck at the roadway manholes was not visible due to the presence of original deck soffit formwork. We also performed chain-drag testing of the deck and found several areas that indicated delaminations of the concrete slab.

Based on the sidewalk reinforcement corrosion observed during the July 2025 site visit and a further review of existing bridge inspection reports, we recommended additional deck openings be provided for observations of the underside of the roadway deck after existing soffit form removal. In March 2026, six additional deck openings for bridge cell access were provided near the centerline of the existing piers. Existing deck slab formwork was removed within the cells so that the concrete soffit surface would be visible. The March 2026 site observation of the bridge deck soffit indicated a significant amount of concrete spalling and corrosion and/or loss of transverse deck reinforcement (see photos).

The existing roadway surface shows cracking consistent with that reported by the 2022 Caltrans Bridge Inspection Report, “The bare concrete deck surface is weathered and abraded with random cracking throughout. The randomly oriented deck cracks are up to 0.125 inches in width at an average of 2 feet on center.” That report was based on observations of the top surface of the bridge deck. Our structural assessment examined the condition of the underside of the sidewalk deck slab as observed from manholes in the sidewalk. In many areas, the bottom transverse deck reinforcement was exposed at spalls and corroded, resulting in complete loss of the bars. The underside of the roadway deck slab was accessed by temporary access openings.

This allowed the inspection of approximately 20% of the bottom surface of the roadway deck slab. Each of these areas showed numerous spalls accompanied by severe corrosion of transverse deck reinforcement. The type and frequency of this damage was not isolated but consistently found at each location with access.

Permitting Impacts for Replacement
It should be noted that all the alternatives considered in the hydraulic studies would include the installation of piles in Soquel Creek which will require construction operations over the water.

These studies are all also required for the Bridge Replacement option. Some issues that will need to be addressed are:
• Biological and Archeological Studies
• Agency permits based on findings
o Army Corps of Engineers
o Regional Water Quality Control Board
o California Department of Fish and Wildlife
o US Fish and Wildlife
o Possibly Caltrans depending on funding sources
• Construction work windows and staging areas in the channel (potential multi-year) • Historical structure impacts of proposed construction 240
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Stockton Avenue Bridge
Structural Condition Evaluation

Alternative 5: Bridge Replacement
The bridge replacement option is a viable option for debris mitigation as the proposed bridge structure will essentially clear span the creek, eliminating the two piers in the main creek channel and creating a more favorable hydraulic pathway. It should be noted that the Stockton Bridge is a critical link for emergency services and response for the coastal community. The closest alternative crossing of Soquel Creek is Highway 1.

The bridge sufficiency rating from the most recent Caltrans Inspection Report is 60.6. That rating would very likely be lower, based on the results of the additional structural condition observations we performed through deck openings to review the underside of the deck. The deck rating of “poor” prior to the recent additional observations was due to excessive transverse cracking, but the overall superstructure was rated as fair. We believe that the additional observation of the interior of the box girder deck corrosion and concrete degradation will further lower the sufficiency rating. Additionally, the existing bridge is 93 years old, beyond its anticipated service life, and highly likely to be seismically deficient.

The most recent Bridge Inspection Report lists the Stockton Avenue Bridge in Historic Bridge Inventory Historic Status Category 2; eligible for the office list of National Register of Historic Places (NRHP). This means that the bridge has been determined eligible as a result of the historic bridge inventory and subsequent updates. Caltrans will need to be contacted to obtain additional information about the Historic Bridge Rating Sheet from the Office of Historic Preservation or sometimes on request from the Cultural Studies Office. There is a multi-step process through Caltrans to determine how the historic nature of the structure affects replacement and what features may be necessary for the new design.

A new replacement structure could be configured so that the new clear span structure would mimic the existing historic character of the bridge, incorporating such features as:
• Arched bridge soffit
• Historic railing features
• Art Deco lighting and support pedestals
• Art Deco approach pedestals at abutments
There are several design hurdles to overcome for the replacement option such as:
• Environmental and permitting studies
• Multi-season construction period
• Demolition and construction activities in the creek channel • Caltrans review and coordination
• Historical structure issues
• Community involvement
• Traffic handling and stage construction
• Utilities in the existing bridge
• Abutment replacements
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Stockton Avenue Bridge
Structural Condition Evaluation

• Bridge hydrology report
• Geotechnical borings and reports
Caltrans Funding Eligibility
The Caltrans Highway Bridge Program (HBP) is a program that provides federal aid to local agencies to rehabilitate and replace structurally deficient, locally owned public bridges or to complete preventive maintenance on bridges that are not deficient. To be eligible for HBP funds, a bridge must be owned and maintained by a local agency, be open to the public, be in poor condition, be seismically vulnerable, or be scour critical.

Based on reviewing the 2022 Caltrans bridge inspection report, the bridge deck is in poor condition (see snapshot below). Currently this bridge is eligible for Bridge Preventive Maintenance Program (BPMP) funding to install a polyester concrete overlay on the bridge deck.

See the work recommendations in the 2022 Caltrans bridge inspection report.

Caltrans was not previously able to observe the inside of the bridge cells. We recommend that the photos from the March 2026 site visit be forwarded to Caltrans for further assessment of the deck and superstructure. The photos and observations from the March 2026 site investigations may result in a lower rating of the deck and superstructure which could lead to additional HBP funding eligibility. If the superstructure rating is reduced to a 4, this bridge will be eligible initially for HBP funding for rehabilitation and potentially for replacement based on the results of a feasibility study.

Conclusion
At a minimum, the widespread loss of a significant percentage of transverse deck reinforcement from corrosion requires a full deck slab replacement. Since the lost reinforcing bars are the bottom transverse bars, their repair cannot be addressed with a deck overlay or methacrylate treatment. The recent records for the bridge indicate substantially increased frequency and cost for structural repairs to address corrosion and corrosion related spalls. Given the advanced age of the bridge (93 years), hydraulic and seismic deficiencies, and the substantial cost to restore the deck slab, a full bridge replacement is recommended. In the interim, a load rating reduction is not regarded as necessary since the lost reinforcement alone will not lead to a collapse risk.

The deck will continue to deteriorate showing more numerous and wider surface cracks.

Cracking should be monitored and recorded. The deck should be re-assessed if cracking is found to be significantly increased.
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Based on the 2022 Caltrans bridge inspection report, this bridge is currently eligible for Bridge Preventive Maintenance Program (BPMP) funding to repair the bridge deck. With the benefit of the photos from our March 2026 observations, Caltrans may reassess the deck and superstructure resulting in HBP funding for rehabilitation and potentially for replacement based on the results of a feasibility study.

Superstructure Condition

Roadway Deck Soffit Spalls and Corrosion Roadway Deck Soffit Spalls and Corrosion 243
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Structural Condition Evaluation

Roadway Deck Soffit Spalls and Reinforcing Corrosion
Roadway Deck Soffit Spalls and Reinforcing Corrosion
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Stockton Avenue Bridge
Structural Condition Evaluation

Roadway Deck Soffit Spalls and Reinforcing Corrosion Deck Soffit Spalls and Reinforcing Corrosion Roadway Deck Soffit Spalls and Reinforcing Corrosion
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Stockton Avenue Bridge
Structural Condition Evaluation

Sidewalk Slab Soffit Spalls and Reinforcing Corrosion
Sidewalk Slab Soffit Spalls and Reinforcing Corrosion
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Stockton Avenue Bridge
Structural Condition Evaluation

Sidewalk Slab Soffit Spalls and Reinforcing Corrosion
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CSWST2 | 303 Twin Dolphin Drive, 6th Floor, Redwood City, CA 94065 Stockton Avenue Bridge

BRIDGE PIER DEBRIS MITIGATION FEASIBILITY REPORT

June 28, 2024
DRAFT DOCUMENT – INTERNAL REVIEW ONLY
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THIS PAGE IS INTENTIONALLY BLANK

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PREPARED BY:
303 Twin Dolphin Drive, 6th Floor
Redwood City, CA 94065
(415) 883-9850
Summary of Version Changes.
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TABLE OF CONTENTS
INTRODUCTION ........................................................................................................................................... 1 EXISTING CONDITIONS .............................................................................................................................. 4 DEBRIS MITIGATION MEASURES ............................................................................................................. 6 Debris Diversion Fin .................................................................................................................................. 6 Debris Diversion Cage ............................................................................................................................... 6 Debris Diversion Piers ............................................................................................................................... 7 Debris Sweeper ......................................................................................................................................... 7 Bridge Replacement .................................................................................................................................. 8 ANALYSIS ..................................................................................................................................................... 9 Hydraulic Analysis ..................................................................................................................................... 9 Geotechnical Analysis ............................................................................................................................... 9 Biological Analysis ..................................................................................................................................... 9 Structural Analysis ................................................................................................................................... 10 RESULTS .................................................................................................................................................... 11 CONCLUSION ............................................................................................................................................ 16 Appendix A – Schematic Design Alternative Plans
Appendix B – Hydraulic Assessment of Debris Control Countermeasure Alternatives Appendix C – Geotechnical Assessment of Debris Control Countermeasure Alternatives Appendix D – Stockton Avenue Bridge Mitigation Project – Biological Constraints Analysis Appendix E – Stockton Avenue Bridge at Soquel Creek (Bridge No. 36C0110) Storm Debris Diversions - Structural Evaluation
Appendix F – Program Level Cost Estimates
Appendix G – Capitola Bridge Over Soquel Creek As-Built Plans Appendix H – Bridge Inspection Reports
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LIST OF FIGURES
Figure 1 Aerial Photograph of Soquel Creek and Stockton Avenue Bridge ................................................. 1 Figure 2 Western View of Stockton Avenue Bridge ...................................................................................... 2 Figure 3 Section of Existing Stockton Bridge ................................................................................................ 2 Figure 5 Debris Accumulation in Southern Span .......................................................................................... 4 Figure 6 Eastern View of Stockton Avenue Bridge ....................................................................................... 4 Figure 4 Existing Bridge Cross Section ........................................................................................................ 4 Figure 7 Collapsed Sidewalks ....................................................................................................................... 5 Figure 9 Logjam Upstream of Soquel Drive Bridge after January 1982 Storm ............................................ 5 Figure 8 Existing Pump House...................................................................................................................... 5 Figure 10 Section Debris Diversion Fin ........................................................................................................ 6 Figure 11 Section of Debris Diversion Cage ................................................................................................. 6 Figure 12 Section Debris Diversion Pier ....................................................................................................... 7 Figure 13 Section Debris Sweeper ............................................................................................................... 7 Figure 14 Preliminary Cross Section of Bridge Replacement ....................................................................... 8 Figure 15 Preliminary Longitudinal Section of Bridge Replacement ............................................................ 8

LIST OF TABLES
Table 1 Existing Condition Water Surface Elevations Upstream of Stockton Avenue Bridge ...................... 9 Table 2 Existing Condition Water Surface Elevations 50’ Upstream of Stockton Avenue Bridge ................ 9 Table 3 Debris Diversion Fin ....................................................................................................................... 11 Table 4: Debris Diversion Cage .................................................................................................................. 12 Table 5: Debris Diversion Piers................................................................................................................... 13 Table 6: Debris Sweeper ............................................................................................................................. 14 Table 7: Bridge Replacement ..................................................................................................................... 15

LIST OF ACRONYMS AND ABBREVIATIONS
ACOE United States Army Corps of Engineers
cfs Cubic Feet per Second
CCC California Coastal Commission
CDFW California Department of Fish and Wildlife
ESA Endangered Species Act
FEMA Emergency Management Agency’s
FIS Flood Insurance Study
LWD Large Woody Debris
NOAA National Oceanic Atmospheric Administration
NMFS National Marin Fisheries Services
RWQCB Regional Water Quality Control Board
USFWS United States Fish and Wildlife Services
USGS United States Geological Survey
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INTRODUCTION
Stockton Avenue Bridge is located in the lower
reaches of the Soquel Creek Watershed, which
is situated between the cities of Santa Cruz and
Watsonville. The Soquel Creek watershed
drains an area of approximately 42 square
miles. The watershed is comprised of urban
development, rural residential development,
agriculture, parks and recreation, and mining
and timber harvesting. The Village, a cultural
and business center in Capitola, is located at the
terminus of Soquel Creek, where it enters the
Pacific Ocean.

Besides the State Route 1 Bridge, Stockton
Avenue Bridge is the only connection linking
east and west Capitola and serves as the
primary evacuation route for the low-lying
Capitola Village. In addition, the finish line of the
popular Wharf to Wharf race is located across
the bridge at the in the Village. Heavy storms
that occurred in January 2023 illustrated the
increased intensity or rain events occurring as a
result of climate change.

The University of California Berkeley study
“Large Woody Debris in Urban Stream
Channels: Redefining the Problem” identified
large woody debris (LWD) as an important
ecological element in Soquel Creek. LWD is
defined as a dead piece of wood that is at least
10 cm in diameter and at least one-meter long.

The Soquel Creek watershed includes rural,
agricultural and timber harvesting areas, which
generate LWD. LWD of this size and larger can
remain in the river channels for years and plays
an important role in shaping channel form and
influencing function. Larger pieces that remain in
place for long periods of time have a greater
effect on channel morphology than smaller,
transient pieces. These effects are essential in
Figure 1 Aerial Photograph of Soquel Creek and Stockton Avenue Bridge 253
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creating diverse in-stream habitats for
macroinvertebrates and fish.

LWD is often removed from urban stream
channels for flood control or road maintenance
purposes, an approach with high economic and
ecological costs and one that is largely
unsuccessful. LWD management has evolved
over the years from removal of debris to a long
term passing management approach. A LWD
passing approach would cause large wooden
logs and branches to rotate parallel with the flow
of the creek to pass beneath bridges.

The average tree length in the Soquel Creek
watershed was identified as being between 15
and 30 feet long. The narrowest clear span of
the Stockton Avenue Bridge is 10 feet. This
appears to cause buildup of debris that can span
the whole creek width and cause significant
flooding to the Capitola Village.

Figure 2 Western View of Stockton Avenue Bridge
Figure 3 Section of Existing Stockton Bridge
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The 2016 Due Diligence memorandum,
prepared by Kimley Horn, identified four
potential debris control countermeasures: debris
sweeper, debris fins, debris deflectors (cage and
pier variants) and bridge replacement. The
purpose of this report is to determine the
feasibility of each debris diversion
countermeasure with the intent of reducing flood
risk along Soquel Creek. The analysis includes
hydraulic, geotechnical, biological, structural and
programmatic level cost estimating.
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EXISTING CONDITIONS
The Stockton Avenue Bridge, built in 1934, is a
cast-in-place concrete continuous 3-span
parabolically arched box girder structure with
mild reinforcement. The bridge crosses Soquel
Creek near its outlet to the Pacific Ocean. The
span configuration is an 85-foot center span,
center of pile to center of pile, with two 25-foot
cantilevered end spans. The central clear span
width is 80 feet. The two end spans are
cantilevered from the concrete piers in Soquel
Creek and are separated from a bin abutment at
each end. An existing fifteen (15) foot concrete
walkway is located within the southern span
reducing the width of the span to ten (10) feet.

The piers are supported on reinforced concrete
pile caps and timber piles. Timber piles at the
piers are a combination of vertical piles and
longitudinally battered piles. The existing bridge
deck cross section is 42 feet wide. Figure 4
depicts the existing condition.

The existing bridge, being supported on the
timber piles, as shown on the plans, indicates
that all existing piles are installed vertically, with
battered piles in the longitudinal direction. If
existing wood piles at the creek piers are
battered transversely, perhaps as an
undocumented late design revision, they could
present a construction obstacle for new piles
adjacent to the existing piers.

The storms of January 2023 caused a portion of
the slope protection and sidewalk at the
abutments to crack and potentially collapse into
Soquel Creek. The plans developed later that
year indicate a repair of the abutment walkway
cracking and patching of concrete spalls on the
pier walls. Some of those spalls were noted in
previous bridge inspection reports. Although the
bid documents were issued in October 2023, we
have not confirmed if that construction has taken
Figure 6 Existing Bridge Cross Section
Figure 5 Eastern View of Stockton Avenue Bridge
Figure 4 Debris Accumulation in Southern Span
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place since cracking was observed in the
walkway slab beneath the south abutment, see
Figure 7.

Located on the south east side of the bridge is
an existing unused pump house, see Figure 8.

The City has requested the pump house be
removed as part of the debris mitigation
countermeasures.

Figure 9 Existing Pump House
The Stockton Avenue Bridge is the furthest
downstream bridge in the watershed, which is
known to have LWD that has historically caused
flooding by damming up bridges, specifically in
1955 and 1982 storm seasons, see Figure 9.

Upstream bridges at Soquel Drive and Highway
1 have larger spans than the Stockton Avenue
Bridge. The span of the Soquel Drive Bridge,
which was replaced in 1890, 1927, 1956 and
most recently in 2003 with the added intent to
facilitate the passage of LWD, has a span of 140
feet compared to the Stockton Avenue Bridge
center clear span of 80 feet. This creates a
higher potential than historically existed for
debris to accumulate upstream of Stockton
Avenue Bridge and cause flooding risk to low
laying areas upstream of the bridge. During the
March 18th, 2024 site visit, LWD was observed
in the eastern bridge span. Sediment
accumulated around the LWD reducing the
hydraulic capacity of the bridge.

The Capitola Local Hazard Mitigation Plan
(LHMP), updated in 2020, identifies Stockton
Avenue Bridge as a critical facility that is at high
risk for various hazards, such as debris and
mudslides, tsunamis, liquefaction potential,
beach erosion, and the 100-year flood.

Figure 7 Collapsed Sidewalks
Figure 8 Logjam Upstream of Soquel Drive Bridge
after January 1982 Storm
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DEBRIS MITIGATION MEASURES
Five (5) debris mitigation measures were
analyzed for feasibility. Refer to Appendix A for
the Schematic Design Alternative Plans.

Debris Diversion Fin
Debris fins are vertical walls extending from
bridge piers that are meant to orient large debris
to pass between existing piers. The top of the fin
can be sloping or horizontal. If sloped, larger
debris that becomes trapped by the fin may ride
up along the top, allowing smaller debris to flow
underneath.

Debris fin implementation at the Stockton
Avenue Bridge would be installed adjacent to
the existing abutments within the channel of
Soquel Creek. The eastern most fin would be
installed at an angle to minimize debris catch
between the pier and creek wall. This would
include installation of weight reinforced concrete
piers in the channel of Soquel Creek. Figure 10
illustrates the debris fin section.

Debris Diversion Cage
Debris diversion cages are meant to orient large
debris to flow under the bridge. The debris
diversion cages are comprised of a
prefabricated steel triangular cage upstream of a
bridge that are designed to orient debris such as
trees or logs so that they pass under the bridge
longitudinally. The cage may also be located
directly in front of a pier. For bridge deflectors to
work, the flow direction needs to be fairly stable.

The design of this type of system is complicated,
and physical model tests may be necessary.

Installation of a debris diversion cages at the
Stockton Avenue Bridge would be comprised of
cages at each bridge pier, placed on three
reinforced concrete piers within the Soquel
Creek channel. Figure 11 depicts the debris
cage section.

Figure 10 Section Debris Diversion Fin
Figure 11 Section of Debris Diversion Cage
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Debris Diversion Piers
Debris diversion piers are meant to
orient large debris to flow under the
bridge. The debris deflectors are
comprised of vertical poles upstream of
a bridge that are designed to orient
debris such as trees or logs so that it
passes under the bridge longitudinally.

The deflectors may also be located
directly in front of a pier. For bridge
deflectors to work, the flow direction
needs to be fairly stable. The design of
this type of system is complicated, and
physical model tests may be necessary.

Implementation of a debris diversion
piers at the Stockton Avenue Bridge
would be comprised of eleven (11) piers
at each bridge pier, placed on
reinforced concrete piers with in the
Soquel Creek channel. Figure 12
illustrates the debris pier section.

Debris Sweeper
Debris sweepers are vaned, cylinder
located in front of a pier that rotates
with the flow and “sweeps” the debris
away from the pier and into the flow
between piers. Sweepers are usually
polyethylene and float up and down so
they can move with the water surface.

Implementation at the Stockton Avenue
Bridge would include the installation of
two manufactured floating debris
sweepers adjacent to the existing piers
within the channel of Soquel Creek.

The sweepers would be installed on
reinforced concrete piers, and the
sweepers would rise and fall with the
water level of the creek. Figure 13
depicts the debris sweeper section.

Figure 12 Section Debris Diversion Pier
Figure 13 Section Debris Sweeper
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Bridge Replacement
Replacement of the Stockton Avenue Bridge
would include a 135 foot clear span bridge, with
abutments in the same location as the existing
bridge and a six (6) foot deck structure. The
replacement would widen the bridge by eight (8)
feet to 52 feet wide. The widened bridge will
accommodate the increased street section, see
Figure 7 for the proposed bridge cross section.

The widened bridge will meet current standards
and needs for all users, including vehicles,
pedestrians and bicyclists. Additionally, the
Stockton Avenue Bridge is the terminus of the
Cliff Drive, and acts as a main connection eastwest point to Capitola’s Village area. Widening the bridge will improve access across Soquel
Creek for multi-modal users. A potential layout
for the widened bridge is depicted in Figure 14.

Figure 14 Preliminary Cross Section of Bridge
Replacement
A new replacement structure could be
configured so that the new clear span structure
would mimic the existing historic character of the
bridge, incorporating such features as:
• Arched bridge soffit
• Historic railing Features
• Art Deco lighting support pedestals
• Art Deco approach pedestals at
abutments.

See Figure 15 for the proposed longitudinal
section of the replacement bridge.

Figure 15 Preliminary Longitudinal Section of Bridge Replacement 260
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ANALYSIS
Hydraulic Analysis
CSWST2 performed a hydraulic Analysis of the
Stockton Avenue Bridge under the existing
conditions and each of the five (5) debris
mitigation counter measures. The analysis
determined the impacts on the water surface
elevation upstream of Stockton Avenue Bridge
for the 100-year storm event and the average
peak lower flow storm events.

Water surface elevations (WSE) within Soquel
Creek at the Stockton Avenue Bridge were
calculated using HEC-RAS version 6.5, the
Army Corps of Engineer’s Hydrologic
Engineering Center’s River Analysis System
computer program. Use of HEC-RAS to model
channel hydraulics for the scenarios provided is
considered appropriate as the water in the
channel, at the elevations modeled, is flowing in
one direction, downstream, toward the ocean
during the flow event.

The peak flow for the 100-year storm event is
17,500 cfs in accordance with the Federal
Emergency Management Agency’s (FEMA)
Flood Insurance Study (FIS) for Santa Cruz
County, CA and Incorporated Areas, FIS No.
06087CV001C.

The peak flow for the lower-flow event of 1,200
cfs was from the United States Geological
Survey’s (USGS) website, “USGS Water Data
for the Nation”. USGS provides data retrieved
from a flow monitoring location in Soquel Creek.

Between January 2024 and March 2024 four
storms produced flows of 1,000 cfs or more in
Soquel Creek. Large woody debris was
observed to be caught below the Stockton
Avenue Bridge in February 2024 and in March
2024.

Results of the existing conditions analysis are
identified in Tables 1 and 2.

Table 1 Existing Condition Water Surface
Elevations Upstream of Stockton Avenue Bridge
Storm Event Water Surface
Elevation (feet)
Q100
(17,500 cfs)

11.29 QJan2024
(1,200 cfs)

3.96 Table 2 Existing Condition Water Surface
Elevations 50’ Upstream of Stockton Avenue
Bridge
Storm Event Water Surface
Elevation (feet)
Q100
(17,500 cfs)

15.61 QJan2024
(1,200 cfs)

4.18 See Appendix B for the Hydraulic Assessment of
Debris Control Countermeasure Alternatives.

Geotechnical Analysis
Engeo performed a review of the debris
mitigation measures, outlined in Section 3, with
regards to geotechnical capacity of the existing
bridge.

See Appendix C for the Geotechnical
Assessment of Debris Control Countermeasure
Alternatives Memorandum.

Biological Analysis
Denise Duffy & Associates Environmental
Scientist performed an environmental
assessment of conditions within and
immediately adjacent to the debris mitigation
countermeasures. The assessment included
sensitive habitats, wetlands, waters of the
US/State, special-status plans, and wildlife
species.
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The analysis includes proposed mitigation
measures to address the potential impacts that
apply to the five (5) proposed debris
countermeasures. Denise Duffy & Associates
identified four (4) potential impacts to Soquel
Creek. Below is a summary of potential
environmental impacts.

Potential Temporary and Permanent Impacts:

Impact 1. Western pond turtle is known
to occur within Soquel Creek and has a
high potential to occur within the survey
area.

Impact 2. Central California coast
steelhead and tidewater goby are known
to occur within Soquel Creek and have a
high potential to occur within the survey
area.

Impact 3. Several avian species have
the potential to nest on Stockton Bridge
and/or the trees adjacent to the bridge.

Impact 4. Soquel Creek is a navigable
waterway therefore it is considered
waters of the US and the State.

Additionally, Soquel Creek is subject to
California Department of Fish and
Wildlife (CDFW) jurisdiction under
Section 1602 of CDFG code. Impacts
associated with the installation of debris
mitigation materials or with the removal
of the existing bridge, to this sensitive
habitat, would be considered significant.

See Appendix D for the complete Stockton
Avenue Bridge Mitigation Project – Biological
Constraints Analysis which includes a
comprehensive list of suggested mitigations that
apply to each debris countermeasure.

Structural Analysis
Biggs Cardosa Associates performed and
infrastructure assessment of the five (5) debris
mitigation countermeasures.

Structurally, all of the alternatives are feasible.

The locations, or lack thereof, of potential,
additional timber piles extending upstream of the
bridge, in the footprint of the proposed
alternatives, affect the ranking of constructability
and economic preference of the alternatives.

If the channel upstream of the bridge is clear of
transversely battered piles, the Debris Sweeper
alternative is the most economical solution,
followed by the Debris Diversion Piers.

If there is a high risk that battered piles exist in
the channel upstream of the bridge, the Debris
Diversion Cage is the most economical solution
followed by a reconfigured version of the Debris
Diversion Piers.

The Debris Diversion Fins are anticipated to
have the most challenges with regard to
constructability and cost.

While Bridge Replacement is the costliest option
with the lengthier design and construction
process, it extends the life span of the bridge
another 75 years and eliminates storm debris
obstacles.

The most recent Bridge Inspection Report lists
the Stockton Avenue Bridge in Historic Bridge
Inventory Historic Status Category 2; eligible for
the office list of National Register of Historic
Places (NRHP). This means that that the bridge
has been determined eligible as a result of the
historic bridge inventory and subsequent
updates. Caltrans will need to be contacted to
obtain additional information about the Historic
Bridge Rating Sheet from the Office of Historic
Preservation or sometimes on request from the
Cultural Studies Office. There is a multi-step
process through Caltrans to determine how the
historic nature of the structure affects
replacement and what features may be
necessary for the new design.

See Appendix E for the Stockton Avenue Bridge
at Soquel Creek (Bridge No. 36C0110) Storm
Debris Diversions - Structural Evaluation.
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RESULTS
The results of the analysis are outline in tables 1
to 5 below.

Table 3 Debris Diversion Fin
Analysis Type Summary of Results
Hydraulic
Storm Event WSE Upstream of Stockton
Avenue Bridge
(feet)
WSE 50’ Upstream of
Stockton Avenue Bridge
(feet)
Q100 12.82 18.11
QJan2024 5.50 6.53
Geotechnical Debris diversion fins do not impact the geotechnical capacity of the existing bridge.

Biological
Installation of Debris Diversion Fins will result in temporary and permanent impacts to Soquel Creek. The following regulatory permits will be required:
• United States Fish and Wildlife Services (USFWS) and National Marin Fisheries Services (NMFS): Section 7 of the Endangered Species Act (ESA).
• California Department of Fish and Wildlife (CDFW): Section 1602 of the California Fish and Game Code (Streambed Alternation Agreement). • United States Army Corps of Engineers (ACOE): Section 404 of the Clean Water Act (CWA) and/or Rivers and Harbor Act Section 10 Permit. • Central Coast Regional Water Quality Control Board (RWQCB):

Section 401 of the CWA.
• California Coastal Commission (CCC): Coastal Development Permit.

Structural
Tapered concrete fin walls supported on large diameter cast-in-steel shells with interlocking grade beams. Fin walls are proposed to be independent from the existing bridge and cantilevered from the large diameter piles for out-of-plane seismic forces. This alternative is feasible to construct in a single season. More discussion is merited about the possibility of transversely battered timber piles.

Functionality
Debris fins are successful in aligning debris with the waterway opening and to avoid the accumulation of debris at bridge piers. The use of the angled fin at the eastern opening will reduce the hydraulic capacity of the bridge, but deflect debris away from the smallest clear span. Debris fins have failed under high lateral forces of trapped debris.

Recreational
User Impacts
Debris fins would block the eastern clear span. Recreational water users traversing upstream along Soquel Creek could be blocked and unable to turn around. The fin could be a hazard to users and require buoys to warn users to avoid them.

Aesthetic
Impacts
Debris fins would be free standing walls interrupting the view of the bridge from the small parks and residents who live in the area.

Maintenance Debris fins require maintenance for debris removal. If debris is not removed, flow conveyance is reduced.

Program Level
Cost Estimate
$1,600,000 to $1,800,000
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Table 4: Debris Diversion Cage

Analysis Type Summary of Results
Hydraulic
Storm Event WSE Upstream of Stockton
Avenue Bridge
(feet)
WSE 50’ Upstream of
Stockton Avenue Bridge
(feet)
Q100 11.72 14.20
QJan2024 4.02 4.18
Geotechnical Debris diversion cages do not impact the geotechnical capacity of the existing bridge.

Biological
Installation of Debris Diversion Cages will result in temporary and permanent impacts to Soquel Creek. The following regulatory permits will be required:
• USFWS and NMFS: Section 7 of the Endangered Species Act (ESA). • CDFW: Section 1602 of the California Fish and Game Code (Streambed Alternation Agreement).
• ACOE: Section 404 of the Clean Water Act (CWA) and/or Rivers and Harbor Act Section 10 Permit.
• Central Coast RWQCB: Section 401 of the CWA.
• CCC: Coastal Development Permit.

Structural
Debris cages are proposed to be independent from the existing bridge and cantilevered from the large diameter piles for out-of-plane seismic forces. This alternative is more likely to be feasible to construct in a single season because of the ability to prefabricate the cages prior to the construction window. The possibility of transversely battered timber piles is less of a concern with this system as the pile configuration avoids likely locations for existing battered piles.

Functionality
Debris diversion cages are actually similar in function to fins, in that they align debris with the waterway opening to avoid the accumulation of debris at bridge piers. In the case of the Soquel Creek the flow direction is steady and alignment of the cage can be accurately placed to orient LWD to the large open span.

Debris diversion cages are at risk of collecting smaller debris within the configuration that can build up and cause LWD to become trapped at the apex of the pier placement.

Recreational
User Impacts
Debris diversion cages would nearly completely block the eastern clear span.

Recreational water users traversing upstream along Soquel Creek could be blocked and unable to turn around. The cage could be a hazard to users and require buoys to warn users to avoid them.

Aesthetic
Impacts
Debris diversion cages would be nearly half the bridge height and interrupt the view of the bridge from the small parks and residence who live in the vicinity.

Maintenance
In the event LWD accumulates in the narrow eastern span (10-feet wide) of the bridge, it would require removal to avoid reducing the hydraulic capacity of the bridge. The debris diversion cages may require annual maintenance to remove any buildup of small debris.

Program Level
Cost Estimate
$1,400,000 to $1,600,000
264
Item 9 A.

Stockton Avenue Bridge – Bridge Pier Debris Mitigation Feasibility Report CSWST2 | 13
Table 5: Debris Diversion Piers
Analysis Type Summary of Results
Hydraulic
Storm Event WSE Upstream of Stockton
Avenue Bridge
(feet)
WSE 50’ Upstream of
Stockton Avenue Bridge
(feet)
Q100 11.72 13.90
QJan2024 4.02 4.17
Geotechnical Debris diversion piers do not impact the geotechnical capacity of the existing bridge.

Biological
Installation of Debris Diversion Piers will result in temporary and permanent impacts to Soquel Creek. The following regulatory permits will be required:
• USFWS and NMFS: Section 7 of the Endangered Species Act (ESA). • CDFW: Section 1602 of the California Fish and Game Code (Streambed Alternation Agreement).
• ACOE: Section 404 of the Clean Water Act (CWA) and/or Rivers and Harbor Act Section 10 Permit.
• Central Coast RWQCB: Section 401 of the CWA.
• CCC: Coastal Development Permit.

The increased number of piers proposed for the debris piers may result in increased mitigation required by the regulatory agencies.

Structural
It is likely that steel shell pile extensions or cast-in-place pole extensions may be preferable to embedded steel sections. This alternative is feasible to construct in a single season. While this pile layout is less likely for potential pile conflicts it is not as favorable as debris diversion cage. More discussion is merited about the possibility of transversely battered timber piles.

Functionality
Debris diversion piers are similar in function to debris fins, in that they align debris with the waterway opening to avoid the accumulation of debris at bridge piers. In the case of the Soquel Creek the flow direction is steady and alignment of the poles can be accurately determined to orient LWD to the large open span. Debris diversion piers are at risk of collecting smaller debris and twigs within the configuration that can build up and cause LWD to become trapped at the apex of the pier placement.

Recreational
User Impacts
Debris diversion piers would nearly completely block the eastern clear span. The piers could be a hazard to users and require buoys to warn users to avoid them.

Aesthetic
Impacts
Debris diversion piers would be round monoliths of nearly half the bridge height and interrupt the view of the bridge from the small parks and residence who live in the vicinity.

Maintenance
In the event LWD accumulates in the narrow eastern span (10-feet wide) of the bridge, it would require removal to avoid reducing the hydraulic capacity of the bridge. The debris diversion piers may require annual maintenance to remove any buildup of small debris.

Program Level
Cost Estimate
$2,100,000 to $2,400,000
265
Item 9 A.

Stockton Avenue Bridge – Bridge Pier Debris Mitigation Feasibility Report CSWST2 | 14
Table 6: Debris Sweeper
Analysis Type Summary of Results
Hydraulic
Storm Event
WSE Upstream of
Stockton Avenue Bridge
(feet)
WSE 50’ Upstream of
Stockton Avenue Bridge
(feet)
Q100 11.66 14.17
QJan2024 4.01 4.18
Geotechnical Debris sweepers do not impact the geotechnical capacity of the existing bridge.

Biological
Installation of Debris Sweepers will result in temporary and permanent impacts to Soquel Creek. The following regulatory permits will be required:
• USFWS and NMFS: Section 7 of the Endangered Species Act (ESA). • CDFW: Section 1602 of the California Fish and Game Code (Streambed Alternation Agreement).
• ACOE: Section 404 of the Clean Water Act (CWA) and/or Rivers and Harbor Act Section 10 Permit.
• Central Coast RWQCB: Section 401 of the CWA.
• CCC: Coastal Development Permit.

The reduced number of piers proposed for the debris sweepers may result in decreased mitigation required by the regulatory agencies.

Structural
The debris sweeper assemblies are proposed to be independent from the existing bridge and cantilevered from a large diameter pile for operational and seismic forces. This alternative is feasible to construct in a single season as there are fewer piles and the main sweeper is prefabricated. More discussion is merited about the possibility of transversely battered timber piles. A sweeper of this type may be difficult to obtain.

Functionality
Debris sweepers are intended to buffer the bridge itself from impact and steer debris around the structures. The sweepers rotate freely, they shed debris, reducing the likelihood of accumulation. Debris sweepers have a high failure rate.

Failures are typically due to clogging, being crushed or disturbed by LWD.

Failures increase potential for debris accumulation.

Recreational
User Impacts
Debris sweepers float up and down with the level of the creek and in small waves.

Recreational water users run the risk getting close to the pole, grab under or on top of the sweeper and get their hand caught.

Aesthetic
Impacts
Debris sweepers would two (2) round monoliths of nearly half the bridge height and interrupt the view of the bridge from the small parks and residence who live in the vicinity. The debris sweeper would have the least visual interruption of the countermeasures install at the existing bridge.

Maintenance
In the event LWD accumulates in the narrow eastern span (10-feet wide) of the bridge, it would require removal to avoid reducing the hydraulic capacity of the bridge.

Program Level
Cost Estimate
$1,300,000 to $1,400,000
266
Item 9 A.

Stockton Avenue Bridge – Bridge Pier Debris Mitigation Feasibility Report CSWST2 | 15
Table 7: Bridge Replacement
Analysis Type Summary of Results
Hydraulic
Storm Event
WSE Upstream of
Stockton Avenue Bridge
(feet)
WSE 50’ Upstream of
Stockton Avenue Bridge
(feet)
Q100 11.91 12.20
QJan2024 4.02 4.02
Geotechnical A foundation exploration, in accordance with Caltrans, shall be performed.

Biological
Installation of a new Bridge will result in temporary impacts to Soquel Creek. The following regulatory permits will be required:
• USFWS and NMFS: Section 7 of the Endangered Species Act (ESA). • CDFW: Section 1602 of the California Fish and Game Code (Streambed Alternation Agreement).
• ACOE: Section 404 of the Clean Water Act (CWA) and/or Rivers and Harbor Act Section 10 Permit.
• Central Coast RWQCB: Section 401 of the CWA.
• CCC: Coastal Development Permit.

No new impacts to the channel of Soquel Creek are proposed, existing structures are proposed for removal. Therefore, bridge replacement may result in reduced mitigation requirements from Regulatory agencies.

Structural
The bridge replacement option is a viable option for debris mitigation as the proposed bridge structure clear spans the creek, eliminating the two piers in the water and creating a more favorable hydraulic channel. In addition, the Stockton Bridge is a critical link for emergency services / response for the coastal community. The closest alternative crossing of Soquel Creek is Highway 1. The existing bridge is 90 years old and highly likely to be seismically deficient.

The bridge sufficiency rating from Caltrans Inspection Reports is 60.6. That rating would likely qualify for rehabilitation funding assistance, but additional studies would need to be performed for replacement funding assistance. The deck rating is poor due to excessive transverse cracking, but the overall superstructure is rated as fair.

Functionality
The clear span opening of a bridge replacement is similar in size to the upstream bridges and would allow LWD to freely pass beneath the bridge and not cause debris build up.

Recreational
User Impacts
Bridge replacement will result in the most accessible debris countermeasure and create the most opportunities for recreational water users.

Aesthetic
Impacts
Bridge replacement would result in the loss of the 1934 construction with art deco façade. A replacement structure could be configured in a contemporary interpretation that mimics the existing historic character of the bridge.

Maintenance
Routine bridge inspections and maintenance, similar to inspection and maintenance currently being performed for the existing Stockton Avenue Bridge, would be required. Note, that a bridge replacement would add 75 years to the life span of the bridge crossing.

Program Level
Cost Estimate
$17,800,000 to $19,800,000
267
Item 9 A.

Stockton Avenue Bridge – Bridge Pier Debris Mitigation Feasibility Report CSWST2 | 16

CONCLUSION
All five (5) debris counter measures are
considered geotechnical, biologically, and
structurally feasible. However, the purpose of
this report is to determine the feasibility of each
debris diversion countermeasure with the intent
of reducing flood risk along Soquel Creek.

Debris Diversion Fins: This alternative is
geotechnical, biologically and structurally
feasible. However, hydraulically, it results in
significant increase in water surface elevation
upstream of the bridge. Debris fins have a
similar cost to debris diversion cages and piers.

Debris fins are the least effective in reducing
flood risks along Soquel Creek due to the
reduction in hydraulic capacity at the bridge.

Debris diversion fins result in the most
significant recreational user and aesthetic
impacts of alternatives maintaining the existing
bridge.

Debris Diversion Cage: This alternative is
hydraulically, geotechnical, biologically and
structurally feasible. Debris cages have a similar
cost to debris diversion fins and piers. Debris
diversion cages are at risk of collecting smaller
debris within the configuration that can build up
and cause LWD to become trapped at the apex
of the pier placement. Debris cages result in
recreational user and aesthetic impacts.

Debris Diversion Piers: This alternative is
hydraulically, geotechnical, biologically and
structurally feasible. Debris piers have a similar
cost to debris diversion fins and cages. Debris
diversion piers are at risk of collecting smaller
debris and twigs within the configuration that can
build up and cause LWD to become trapped at
the apex of the pier placement. Debris piers
result in the least recreational user and aesthetic
impacts.

Debris Sweeper: This alternative is
hydraulically, geotechnical, biologically and
structurally feasible. Debris sweepers are the
least costly alternative, but are at risk of being
ineffective at reducing flooding along Soquel
Creek due to the high failure rate due to
crushing from LWD. Debris sweepers result in
the least recreational user and aesthetic impacts
of alternatives maintaining the existing bridge.

Bridge Replacement: This alternative is
hydraulically, geotechnical (with supplemental
studies), biologically and structurally feasible.

Bridge replacement is the most costly
alternative, but will be most effective in reducing
flood risks along Soquel Creek by similarly
matching the clear span opening to the
upstream bridges. Bridge replacement also
results in the least recreational user and
aesthetic impacts.
268
Item 9 A.

Stockton Avenue Bridge – Bridge Pier Debris Mitigation Feasibility Report CSWST2 |
Appendix A – Schematic Design Alternative Plans
269
Item 9 A.
1 inch = 10 ft.
10 8.6±'

ANGLE FIN TO MINIMIZE
DEBRIS CATCH BETWEENPIER AND CREEK WALL.

SOQUEL CREEK

FLOW DIRECTION

CREEK WALL CREEK WALL

EDGE EXISTINGBRIDGE DECK

EDGE EXISTINGBRIDGE DECK

SOQUEL CREEK

FLOW DIRECTION

TO PACIFIC OCEAN

CREEK WALL CREEK WALL

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

CREEK WALLCONTINUES

UNDER BRIDGE

PIERUNDER BRIDGE

S T O C K T O N A V E

PIERUNDER BRIDGE

91.3±'

79.8±'

26.0±'
2 0
'
20'
FOOTING, TYP.

FIN, TYP.

PIER, TYP.

22.4±'
85'

CENTERLINE PIER TO CENTERLINE PIER
&

CENTERLINE END FIN TO CENTERLINE END FIN PIER UNDER
BRIDGE

PIER UNDERBRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

APPROXIMATE LOCATION

OF EXISTING CREEK WALL

UNDER BRIDGE

REINFORCED
CONCRETE PIER, TYP.

REINFORCED

CONCRETE
FOOTING, TYP.

REINFORCED

CONCRETE
FIN WALL, TYP.

ANGLE FIN TO MINIMIZE
DEBRIS CATCH BETWEENPIER AND CREEK WALL.

EXISTING
TIMBER PILES, TYP.
25' 25'

PIER FOOTING,
TYP.
20'

PIER UNDERBRIDGE

REINFORCED
CONCRETE PIER, TYP.

REINFORCED

CONCRETE
FOOTING, TYP.

REINFORCED

CONCRETE
FIN WALL, TYP.

EXISTING
TIMBER PILES, TYP.
(DIAGRAMMATICALLY
SHOWN)

CONCRETE FIN

WALL AND FOUNDATION
BEYOND IN DASHED, TYP..

PIER FOOTING

SOQUEL CREEK

FLOW DIRECTION

APPROXIMATE

CREEK BOTTOM
SDA1
DEBRIS DIVERSION FIN 1" = X'
P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DWG\Exhibits\Alternatives.dwg 06/21/2024 - 11:51 AM nankk 1:1 Sheet Plan File: Project Number: 2300338 Prepared Under the Direction of: CITY OF CAPITOLA STOCKTON AVENUE BRIDGE MITIGATION State County City California Santa Cruz Capitola
Rev Date Description Designed Drawn Checked
Scale:

Date: 04/18/2024
303 TWIN DOLPHIN DRIVE
REDWOOD CITY, CA 94065
©2024
ENGINEERING | LANDSCAPE ARCHITECTURE
SURVEYING | URBAN PLANNING
415.883.9850
WWW.CSWST2.COM

SCHEMATIC DESIGN ALTERNATIVE
PLAN

UPSTREAM ELEVATION WESTWARD ELEVATION
SCALE: 1"=10'SCALE: 1"=10' SCALE: 1"=10'
270
Item 9 A.
1 inch = 10 ft.
10 76±'

S T O C K T O N A V E

SOQUEL CREEK

FLOW DIRECTION

CREEK WALL CREEK WALL

EDGE EXISTING BRIDGE DECK

EDGE EXISTINGBRIDGE DECK

SOQUEL CREEK

FLOW DIRECTION

TO PACIFIC OCEAN

CREEK WALL CREEK WALL

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

CREEK WALLCONTINUES

UNDER BRIDGE

PIERUNDER BRIDGE

PIERUNDER BRIDGE
7 84.5±' .8±' 26.9±'

8.9'
TYP.
2 3
.
8 ±
'
T
Y
P
.

DEBRIS DEFLECTOR CAGE FRAME, TYP.

6.6±' 20.8±'
25' 85' 25'
85'

CENTERLINE PIER TO CENTERLINE PIER
&

CENTERLINE DEBRIS CAGE TO CENTERLINE DEBRIS CAGE PIER UNDER BRIDGE PIER UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

APPROXIMATE LOCATION

OF EXISTING CREEK WALL

UNDER BRIDGE

REINFORCED
CONCRETE PIERS, TYP.

EXISTING
TIMBER PILES, TYP.
25' 25'
DEBRIS DEFLECTOR CAGE FRAME:

WELDED 6"x6" GALVANIZED
STEEL SQUARE BAR, TYP.

22.3'±

PIER UNDERBRIDGE

REINFORCED
CONCRETE PIER, TYP.

GALVANIZED STEEL

POST EMBEDDED IN
CONCRETE PIER.

EXISTING
TIMBER PILES, TYP.
(DIAGRAMMATICALLY
SHOWN)

PIER FOOTING

SOQUEL CREEK

FLOW DIRECTION

APPROXIMATE

CREEK BOTTOM
DEBRIS DEFLECTOR CAGE FRAME:

WELDED 6"x6" GALVANIZED STEEL SQUARE BAR

10.5±'

23.8±'
SDA2
1" = X'
P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DWG\Exhibits\Alternatives.dwg 06/21/2024 - 11:52 AM nankk 1:1 Sheet Plan File: Project Number: 2300338 Prepared Under the Direction of: CITY OF CAPITOLA STOCKTON AVENUE BRIDGE MITIGATION State County City California Santa Cruz Capitola
Rev Date Description Designed Drawn Checked
Scale:

Date: 04/18/2024
303 TWIN DOLPHIN DRIVE
REDWOOD CITY, CA 94065
©2024
ENGINEERING | LANDSCAPE ARCHITECTURE
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DEBRIS DIVERSION CAGE

SCHEMATIC DESIGN ALTERNATIVE
PLAN

UPSTREAM ELEVATION WESTWARD ELEVATION
SCALE: 1"=10'SCALE: 1"=10' SCALE: 1"=10'
271
Item 9 A.
1 inch = 10 ft.
10 85±'

S T O C K T O N A V E

SOQUEL CREEK

FLOW DIRECTION

CREEK WALL CREEK WALL

EDGE EXISTINGBRIDGE DECK

EDGE EXISTINGBRIDGE DECK

SOQUEL CREEK

FLOW DIRECTION

TO PACIFIC OCEAN

CREEK WALL CREEK WALL

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

CREEK WALLCONTINUES

UNDER BRIDGE

PIERUNDER BRIDGE

PIERUNDER BRIDGE

7.6±' 27.0±'
FOOTING AS NEEDED, TYP.
2 5
'
±
T
YP
.

20.9±'

6.7±'

76.5±'

8.5±'
CONCRETE PIER, TYP.

GALVANIZED STEEL PIER POLE, TYP.
25' 25' 85'
85'

CENTERLINE BRIDGE PIER TO CENTERLINE BRIDGE PIER
&

CENTERLINE TO CENTERLINE

OF PIER ARRANGEMENTS BRIDGE SUPPORT PIER UNDER BRIDGE BRIDGE SUPPORT PIER UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

APPROXIMATE LOCATION

OF EXISTING CREEK WALL

UNDER BRIDGE

REINFORCED
CONCRETE PIERS, TYP.

PIER POLESEMBEDDED IN

CONCRETE PIERS,
TYP.

GALVANIZEDSTEEL PIER POLES, TYP..

EXISTING
TIMBER PILES, TYP.
25' 25'
25'

BRIDGE SUPPORTPIER UNDERBRIDGE

REINFORCED
CONCRETE PIER, TYP.

REINFORCED

CONCRETE
FOOTING, TYP.

EXISTING
TIMBER PILES, TYP.
(DIAGRAMMATICALLY
SHOWN)

PIER FOOTING

SOQUEL CREEK

FLOW DIRECTION

APPROXIMATE

CREEK BOTTOM
SDA3
1" = X'
P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DWG\Exhibits\Alternatives.dwg 06/21/2024 - 11:53 AM nankk 1:1 Sheet Plan File: Project Number: 2300338 Prepared Under the Direction of: CITY OF CAPITOLA STOCKTON AVENUE BRIDGE MITIGATION State County City California Santa Cruz Capitola
Rev Date Description Designed Drawn Checked
Scale:

Date: 04/18/2024
303 TWIN DOLPHIN DRIVE
REDWOOD CITY, CA 94065
©2024
ENGINEERING | LANDSCAPE ARCHITECTURE
SURVEYING | URBAN PLANNING
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DEBRIS DIVERSION PIERS

SCHEMATIC DESIGN ALTERNATIVE
PLAN

UPSTREAM ELEVATION WESTWARD ELEVATION
SCALE: 1"=10'SCALE: 1"=10' SCALE: 1"=10'
272
Item 9 A.
1 inch = 10 ft.
10 85'

S T O C K T O N A V E

SOQUEL CREEK

FLOW DIRECTION

CREEK WALL CREEK WALL

EDGE EXISTINGBRIDGE DECK

EDGE EXISTINGBRIDGE DECK

SOQUEL CREEK

FLOW DIRECTION

TO PACIFIC OCEAN

CREEK WALL CREEK WALL

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

CREEK WALLCONTINUES

UNDER BRIDGE

PIERUNDER BRIDGE

PIERUNDER BRIDGE
MANUFACTURED FLOATINGDEBRIS SWEEPER, TYP.

ESTIMATED OUTER DIAMETER: 3'

25.4±' 10.4±'
4 .
5 ±
'
85'
CENTERLINE EX. BRIDGE PIER TO EX. BRIDGE PIER
&

CENTERLINE SWEEPER TO CENTERLINE SWEEPER PIER UNDER
BRIDGE

PIER UNDERBRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

APPROXIMATE LOCATION

OF EXISTING CREEK WALL

UNDER BRIDGE

REINFORCED
CONCRETE PIER, TYP.

EXISTING
TIMBER PILES, TYP.

GALVANIZED STEEL

POST EMBEDDED IN
CONCRETE PIER.

MANUFACTURED FLOATING DEBRIS SWEEPER.RISES AND FALLS WITH WATER LEVEL. 25' 25'

PIER FOOTING,
TYP.

4.5'±

PIER UNDERBRIDGE

REINFORCED
CONCRETE PIER, TYP.

GALVANIZED STEEL

POST EMBEDDED IN
CONCRETE PIER.

EXISTING
TIMBER PILES, TYP.
(DIAGRAMMATICALLY
SHOWN)
MANUFACTURED FLOATINGDEBRIS SWEEPER.

PIER FOOTING

SOQUEL CREEK

FLOW DIRECTION

APPROXIMATE

CREEK BOTTOM
SDA4
1" = X'
P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DWG\Exhibits\Alternatives.dwg 06/21/2024 - 11:54 AM nankk 1:1 Sheet Plan File: Project Number: 2300338 Prepared Under the Direction of: CITY OF CAPITOLA STOCKTON AVENUE BRIDGE MITIGATION State County City California Santa Cruz Capitola
Rev Date Description Designed Drawn Checked
Scale:

Date: 04/18/2024
303 TWIN DOLPHIN DRIVE
REDWOOD CITY, CA 94065
©2024
ENGINEERING | LANDSCAPE ARCHITECTURE
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DEBRIS DIVERSION SWEEPER

SCHEMATIC DESIGN ALTERNATIVE
PLAN

UPSTREAM ELEVATION WESTWARD ELEVATION
SCALE: 1"=10'SCALE: 1"=10' SCALE: 1"=10'
273
Item 9 A.
1 inch = 10 ft.
10 5
2 '
P
R
O
P
O
S
E
D
WID
T
H

EDGE BRIDGE DECK/
OUTSIDE EDGE OF RAIL.

MATCH EDGE OFEXISTING BRIDGE

S T O C K T O N A V E
8 '
SID
E
-
W
A
L
K
5 '
B
I
K
E
L
A
N
E
1 2
'
T
R
A
V
E
L
L
A
N
E
1 2
'
T
R
A
V
E
L
L
A
N
E
5 '
B
I
K
E
L
A
N
E
8 '
S
DI E
-
W
A
L

KEDGE DECK/ OUTSIDE
EDGE OF RAIL OFEXISTING BRIDGE.
4 4
.
1 7
'
E
XIS
TIN
G
WID
T
H
EDGE DECK/ OUTSIDEEDGE OF RAIL OFPROPOSED BRIDGE.

SOQUEL CREEK

FLOW DIRECTION

CREEK WALL CREEK WALL

SOQUEL CREEK

FLOW DIRECTION

TO PACIFIC OCEAN

CREEK WALL CREEK WALL

FACE OF

ABUTMENT

UNDER BRIDGE

FACE OF

ABUTMENT

UNDER BRIDGE

CREEK WALLCONTINUES

UNDER BRIDGE

PIERUNDER BRIDGE
(DEMO)

PIERUNDER BRIDGE
(DEMO)

4.8%

4.8%

MATCH EX

ELEVATION

MATCH EX

ELEVATION
135'±

CLEAR SPAN

REMOVE PIER UNDER BRIDGE

ABOVE FOOTING, TYP, EXISTING AND PROPOSED

FACE OF

ABUTMENT

EXISTING AND

PROPOSED

FACE OF

ABUTMENT

APPROXIMATE LOCATION

OF EXISTING CREEK WALL

UNDER BRIDGE EXISTING TIMBER PILES
TO REMAIN, TYP.

PIER FOOTING,

TO BE DETERMINED WHETHER TO
REMOVE OR TO REMAIN, TYP.

MATCH EX

PAVEMENTELEVATION

MATCH EXPAVEMENTELEVATION

EXISTING DECKELEVATION,
APPROXIMATE.

PROPOSED DECKELEVATION,
APPROXIMATE.
6'

BRIDGE SOFFIT,
APPROXIMATE.

BRIDGE RAIL /BARRIER

ARCHITECTURAL AND

LIGHTING ELEMENTS,
ETC., TO BE DETERMINED.

4.8%

4.8%
SDA5.1
1" = X'
P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DWG\Exhibits\Alternatives.dwg 06/21/2024 - 11:55 AM nankk 1:1 Sheet Plan File: Project Number: 2300338 Prepared Under the Direction of: CITY OF CAPITOLA STOCKTON AVENUE BRIDGE MITIGATION State County City California Santa Cruz Capitola
Rev Date Description Designed Drawn Checked
Scale:

Date: 04/18/2024
303 TWIN DOLPHIN DRIVE
REDWOOD CITY, CA 94065
©2024
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CLEAR SPAN BRIDGE

SCHEMATIC DESIGN ALTERNATIVE
PLAN

UPSTREAM ELEVATION
SCALE: 1"=10'SCALE: 1"=10'
274
Item 9 A.

45.17'

EXISTING BRIDGE AND PIER UNDERBRIDGE (TO BE REMOVED)

EXISTING
TIMBER PILES, TYP.
(DIAGRAMMATICALLY
SHOWN)

TO REMAIN

PIER FOOTING

TO BE DETERMINED

WHETHER TO DEMO OR TO REMAIN

SOQUEL CREEK

FLOW DIRECTION

APPROXIMATE

CREEK BOTTOM

SOQUEL CREEK

FLOW DIRECTION

APPROXIMATE

CREEK BOTTOM

NEW BRIDGE

CLEAR SPAN

NO PIERS
52'

44.17'

EXISTING
52'

PROPOSED
6'
SIDEWALK
8'
SIDEWALK
5'
BIKE
LANE
12'
TRAVEL
LANE
1'
RAIL/

BARRIER
12'
TRAVEL
LANE
5'
BIKE
LANE
8'
SIDEWALK
1'
RAIL/

BARRIER
4'±
BIKE
LANE
11'±
TRAVEL
LANE
11'±
TRAVEL
LANE
4'±
BIKE
LANE
6'
SIDEWALK

NEW BRIDGE

EXISTING BRIDGE
(REMOVE)
1 inch = 20 ft.
20 S T O C K T O N A V E
5 2
'

MATCH EDGE OFEXISTING BRIDGE
4 4
.
1 7
'

EDGE OFPROPOSED BRIDGE

EDGE OFEXISTING BRIDGE

CONFORM TO EXISTINGCURB, GUTTER, SIDEWALK
& BIKE LANE STRIPING.

CONFORM TO
EXISTING STRIPING.

CONFORM TO EXISTINGCURB, GUTTER, SIDEWALK& BIKE LANE STRIPING.

WALKWAY AND RAMPING

IMPROVEMENTS TO PARK
TO BE DETERMINED.

REMOVE ABANDONEDPUMP STATION HOUSING

WALKWAY AND RAMPING

IMPROVEMENTS TO PARK
TO BE DETERMINED.

CONFORM TO EXISTINGCURB, GUTTER, SIDEWALK
& BIKE LANE STRIPING.

CONFORM TO
EXISTING STRIPING.

CONFORM TO EXISTINGCURB, GUTTER, SIDEWALK
& BIKE LANE STRIPING.
147'

REPLACE BRIDGE

SOQUEL CREEK

FLOW DIRECTION

SOQUEL CREEK

FLOW DIRECTION

TO PACIFIC OCEAN
A
AB
B
4 5
.
1 7
'
SDA5.2
1" = X'
P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DWG\Exhibits\Alternatives.dwg 06/21/2024 - 11:56 AM nankk 1:1 Sheet Plan File: Project Number: 2300338 Prepared Under the Direction of: CITY OF CAPITOLA STOCKTON AVENUE BRIDGE MITIGATION State County City California Santa Cruz Capitola
Rev Date Description Designed Drawn Checked
Scale:

Date: 04/18/2024
303 TWIN DOLPHIN DRIVE
REDWOOD CITY, CA 94065
©2024
ENGINEERING | LANDSCAPE ARCHITECTURE
SURVEYING | URBAN PLANNING
415.883.9850
WWW.CSWST2.COM

CLEAR SPAN BRIDGE

SCHEMATIC DESIGN ALTERNATIVE
PLAN

SECTION A SECTION B
SCALE: 1"=20'
SCALE: 1"=10' SCALE: 1"=10'
275
Item 9 A.

Stockton Avenue Bridge – Bridge Pier Debris Mitigation Feasibility Report CSWST2 |
Appendix B – Hydraulic Assessment of Debris Control Countermeasure Alternatives 276
Item 9 A.

P:\Shared\Projects\2023\2300338 Capitola Stockton Bridge Replacement\DOC\300 Analysis and Reports\Hydrology Hydraulic Memo\2024-06-28 Capitola Stockton Bridge Replacement H&H Memo 2300338.docx
Adaptive Solutions for Resilient Designs
303 Twin Dolphin Drive
Redwood City, CA 94065
415.883.9850
www.cswst2.com
Berkeley | Novato | Petaluma | Pleasanton | Redwood City | Richmond

MEMORANDUM
DATE: June 28, 2024 FILE: 2300338
TO: Julia Harberson
FROM: Kristine Pillsbury and Brianna Bright
RE: STOCKTON AVENUE BRIDGE DEBRIS MITIGATION FEASIBILITY

HYDRAULIC ASSESSMENT OF DEBRIS COUNTERMEASURE ALTERNATIVES

PRELIMINARY RESULTS
This memorandum is prepared to provide a summary of the findings of the hydraulic assessment of the debris countermeasure alternatives proposed for the Stockton Avenue Bridge in Capitola, California.

This memorandum includes the following Attachments:

Attachment 1 – HEC-RAS Model Results Tables
Attachment 2 – HEC-RAS Model Cross Section Plots
Introduction
Stockton Avenue Bridge is located in the lower reaches of the Soquel Creek Watershed, which is situated between the cities of Santa Cruz and Watsonville. The Soquel Creek watershed drains an area of approximately 42 square miles. The watershed is comprised of urban development, rural residential development, agriculture, parks and recreation, and mining and timber harvesting.

The University of California Berkeley study “Large Woody Debris in Urban Stream Channels:

Redefining the Problem” identified large woody debris (LWD) as an important ecological element in Soquel Creek. LWD is defined as a dead piece of wood that is at least 10 cm in diameter and at least one-meter long. The Soquel Creek watershed includes rural, agricultural and timber harvesting areas, which generate LWD. LWD of this size and larger can remain in the river channels for years and play an important role in shaping channel form and influencing function. However, when LWD accumulates around obstructions in the channel, capacity for conveyance is be reduced, leading to flooding of areas adjacent to the stream. As well, critical infrastructure can be damaged.
277
Item 9 A.