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...
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