Agenda #: 5.6
Meeting Date: February 20, 2024
TO: Honorable Mayor and Members of the City Council
FROM: Daniel Fox, City Manager
TITLE: APPROVAL OF PLANS AND SPECIFICATIONS FOR THE AREA 3
RESIDENTIAL & COLLECTOR STREETS REHABILITATION AND
ARTERIAL STREET REHABILITATION (GOLDEN SPRINGS DRIVE
FROM GRAND AVENUE TO AVENIDA RANCHEROS, GRAND
AVENUE FROM DIAMOND BAR BLVD TO EAST CITY LIMITS,
GATEWAY CORPORATE CENTER) PROJECT NO. SI24101 &
SI24103; THE GRAND AVENUE AT DIAMOND BAR BOULEVARD
DRAINAGE IMPROVEMENTS PROJECT NO. PW23402; AND THE
COLD SPRING LANE GROUNDWATER DRAINAGE IMPROVEMENTS
PROJECT NO. SI24101.
STRATEGIC
GOAL: Safe, Sustainable & Healthy Community
RECOMMENDATION:
A. Determine that approving the design and plans for the proposed projects is exempt from the California Environmental Quality Act pursuant to Section 15301(c) of the CEQA Guidelines; and
B. Adopt Resolution No. 2024-04 approving the design and plans for the Area 3 Residential & Collector Streets Rehabilitation and Arterial Street Rehabilitation (Golden Springs Drive from Grand Avenue to Avenida Rancheros, Grand Avenue from Diamond Bar Blvd. to City East Limits, collector streets within the Gateway Corporate Center) Project, the Grand Avenue Median Drainage Improvement Project, and the Cold Spring Lane Ground Water Drainage Improvement Project.
FINANCIAL IMPACT:
This Project will commence advertising upon approval of the design and plans. The most recent Engineer’s Estimate for the project cost is $8.66 million. Adequate funds are available in the FY 2023/24 Capital Improvement Program (CIP) Budget for the construction of the residential (CIP# SI24101) and arterial (CIP# SI24103) pavement rehabilitation projects and for the Grand Avenue Median Drainage Improvement Project
(PW23402). For the Cold Spring Lane Groundwater Drainage Improvements Project, Measure W Funds will be requested/appropriated at the time of the award of the construction contract.
BACKGROUND:
On February 21, 2023, the City Council approved a Consulting Services Agreement with Nichols Consulting Engineers, Inc. (NCE) to design the Residential & Collector Streets Rehabilitation and Arterial Street Rehabs, including the design of the American with Disabilities Act (ADA) Curb Ramp Improvement Projects for Areas 3, 4, and 5. The Arterial Streets Rehabilitation encompasses various roads, including Golden Springs Drive, Grand Avenue, Diamond Bar Blvd., Chino Hills Pkwy, Lemon Avenue, and other ADA Curb Ramp Projects.
On November 7, 2023, the City Council approved an amendment to the Professional Services Agreement with Tait & Associates, Inc. (Tait), which, among other tasks, included the design services for the Cold Spring Lane groundwater drainage improvements to be added to the Area 3 Residential Streets Pavement Rehabilitation Project. As part of the Area 3 pavement design work, it became evident that this groundwater issue, identified as Phase 6 of the Citywide groundwater mitigation efforts, needs to be addressed prior to moving forward with the pavement improvements. The design work on this groundwater issue has been completed and is incorporated into the Project specifications.
At the intersection of Grand Avenue and Diamond Bar Boulevard, it has been observed that stormnwater ponds along the median nose during rain events. The City’s on-call civil engineering firm, HR Green, prepared and completed the drainage improvement plans for this intersection to eliminate the ponding water by modifying the pavement grades to allow for positive drainage towards the gutters. Instead of constructing these minor improvements separately, it was determined to be more cost-effective to include and bundle this work as part of the arterial street pavement rehabilitation project.
ANALYSIS:
The City’s Area 3 is located to the south of Pathfinder Road, spanning both the western and eastern sides of Diamond Bar Boulevard and the SR 57 freeway. The Project encompasses approximately 17 center miles of residential and collector streets, necessitating treatments such as slurry seal, chip seal, and asphaltic concrete (AC) overlay. Additionally, it involves addressing isolated areas of damaged AC pavement as determined by field assessments. Furthermore, the Project includes aprroximately 6 centerline miles of various segments along major arterials, notably Golden Springs Drive from Grand Avenue to Avenida Rancheros, Grand Avenue from Diamond Bar Boulevard to the easterly City limits, and collector streets within the Gateway Corporate Center. Please refer to Attachment 2 for the Vicinity Map.
By consolidating/bundling the two drainage work with the Area 3 pavement project into a single bidding document, the City should receive favorable bid proposals from a number of qualified contractors. As listed below, three (3) consultants have completed the preparation of the respective Plans, Specifications, and Estimates (PS&E). A full set of the Plans and Specifications is available electronically through the City Clerk’s Office.
The cover pages of the Plans and Specifications are shown in Attachment 3.
CIP# Project Consultant
SI24101 Residential and Collector Street Rehab - Area 3 NCE SI24103 Arterial Street Rehab:
- Golden Springs Dr from Grand Ave to Temple Ave
- Grand Ave from Diamond Bar Blvd. to East City
Limits
- Gateway Center Dr, Copley Dr, Bridgegate Dr
NCE
PW23402 Grand Avenue Median Drainage Improvement HR Green Under SI24101 Cold Spring Lane Groundwater Drainage
Improvements
Tait
The tentative schedule is as follows:
Approve Plans & Specifications February 20, 2024
Award Construction Contract April 2024
Start of Construction April/May 2024
Completion of Construction August/September 2024
Lane closures and construction activities along Golden Springs Drive, Grand Avenue, and within the Gateway Corporate Center will be permitted between 8:30 AM - 4:30 PM to minimize disruption to peak traffic hours while ensuring timely project completion.
Therefore, it is recommended that the City Council approve the Plans and Specifications by adopting the Resolution included in Attachment 1. A project payment account will be established upon the award of the construction contract.
Environmental Review
Staff has determined that this Project is exempt from the California Environmental Quality Act (CEQA) provisions pursuant to the California Code of Regulations, guidelines for the implementation of the CEQA, Section 15301(c) under Class 1 Existing Facilities, existing highways and streets.
LEGAL REVIEW:
The City Attorney has reviewed and approved the Resolution as to form.
PREPARED BY:
REVIEWED BY:
Attachments:
1. 5.6.a Resolution No. 2024-04 - Approval of Plans & Specifications
2. 5.6.b Vicinity Map
3. 5.6.c Plans and Specifications Cover Sheets