BOARD AGENDA MEMORANDUM
Government Code § 84308 Applies: Yes ☐ No ☒
(If “YES” Complete Attachment A - Gov. Code § 84308)
SUBJECT: Title
Adopt Plans and Specifications and Authorize Advertisement for Bids for the Calabazas Creek Erosion Repair Project, Project No. 62084001, Contract No. C0715 (Cupertino, District 5).
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RECOMMENDATION: Recommendation
A. Adopt the Plans and Specifications and Authorize Advertisement for Bids for Construction of the Calabazas Creek Erosion Repair Project, per the Notice to Bidders; and
B. Authorize the Designated Engineer to issue addenda, as necessary during bidding process.
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SUMMARY:
The objective of the Calabazas Creek Erosion Repair Project (Project) is to repair the eroded channel banks at targeted locations along the creek between Miller Avenue and Bollinger Road. The Project aims to minimize future bank failures, minimize impacts to water quality and riparian habitat associated with bank erosion, add additional native vegetation, reduce the need for on-going maintenance, and continue to provide existing flood protection level of service to the community. The Project is estimated to take two months to complete, with the work in the channel limited to the summer construction season of June 15 to October 15. The Project construction cost is estimated to be between $800 thousand and $1.2 million.
Background
The Calabazas Creek Rehabilitation Project (Rehabilitation Project), from Miller Avenue to Bollinger Road, within the City of Cupertino was completed in 2023 as one of the high priority capital projects under the Watersheds Asset Rehabilitation Program (WARP).
Following the first storm of the season, after the completion of the Rehabilitation Project, regulatory agencies and Santa Clara Valley Water District (Valley Water) staff conducted a site walk to gauge the conditions of the rehabilitated creek. Several deficiencies were identified, including toe and bank erosion, at transition locations between the improved and unimproved channel length of the Rehabilitation Project.
Repair of these deficiencies was needed and required by the regulatory agencies to prevent further erosion from continuing along the slopes and compromising the rehabilitated channel.
The Project scope of work entails repair and stabilization of channel banks that are eroding at four locations through the installation of rip-rap (two locations) or grouted rip-rap (two locations).
Relevant Prior Board Actions
On September 14, 2021, the Board adopted and certified the Final Mitigated Negative Declaration (FMND) for the Rehabilitation Project.
On March 22, 2022, the Board adopted the plans and specifications and authorized advertisement for the bids for the Rehabilitation Project.
On May 20, 2022, the Board awarded the construction contract for the Rehabilitation Project to Granite Construction Company.
On November 26, 2024, the Board accepted the work as complete and directed the Clerk to file the notice of completion of contract and acceptance of work for the Rehabilitation Project.
Rights-of-Way
Valley Water has obtained all necessary rights-of-way to construct the Project.
Permits
Valley Water has obtained all necessary regulatory permits for the construction of the Project except for amending a Lake and Streambed Alteration Agreement for the California Department of Fish and Wildlife permit, which staff continue to negotiate. It is anticipated that this permit will be received in time for construction and should not impact the Project scope. Staff will update the Board on this permit approval during the award of the construction contract.
Board Adoption of Plans and Specifications and Addenda Authorization
Board adoption of plans and specifications and Board authorization to advertise is recommended to proceed to bid the Project for construction. Authorizing the Designated Engineer to issue addenda during the bidding period allows for modifications to the construction contract documents, if necessary, during the bidding period and before the contract is awarded.
Outreach to Bidders
The Notice to Bidders (Attachment 2) will be sent to the following recipients: approximately 26 plan rooms; 56 minority businesses, and several Chambers of Commerce and small business groups; 145 certified small business contractors; local and regional firms that have the appropriate license for this type of work; and the Santa Clara and San Benito Counties Building and Construction Trades Council, which maintains contacts with at least 500 contractors and 70 union representatives, for distribution to their members.
Public Outreach
During the design phase, staff successfully coordinated with the City of Cupertino for the planned implementation of the Project.
Next Steps
If the Board approves the recommendations, staff will proceed to advertise the Project for construction bids. Staff anticipates recommending award of a construction contract in July 2025. The Project Delivery Process Chart (Attachment 3) highlights the current Project phase and the staff recommendations before the Board.
ENVIRONMENTAL JUSTICE AND EQUITY IMPACT:
There are no environmental justice and equity impacts associated with the Project. This action is unlikely to result in adverse impacts and is not associated with an equity opportunity.
FINANCIAL IMPACT:
The Project is included under the WARP, Project No. 62084001 and is included in the Capital Improvement Program Fiscal Years (FY) 2025-29 Five-Year Plan and in the FY 2024-25 Adopted Budget. There is no financial impact associated with the recommendation to Adopt Plans and Specifications and Authorize Advertisement for Bids. The estimated cost of construction for the Project is between $800 thousand and $1.2 million. There are adequate funds in the Board-adopted FY 2024-25 budget to encumber funds for Project construction. The Project is funded by the Watersheds Stream Stewardship Fund (Fund 12).
CEQA:
Valley Water is the lead agency under the California Environmental Quality Act for implementation of the Project.
On September 14, 2021, the Board adopted and certified the Final Mitigated Negative Declaration (FMND) for the Rehabilitation Project. The proposed scope of work and impact is part of the project described in the FMND and all mitigation measures identified in the MND will be implemented.
ATTACHMENTS:
Attachment 1: Map
Attachment 2: Notice to Bidders
Attachment 3: Project Delivery Process Chart
Attachment 4: Plans
Attachment 5: Specifications
UNCLASSIFIED MANAGER: Manager
Bhavani Yerrapotu, 408-630-2735