BOARD AGENDA MEMORANDUM
Government Code ? 84308 Applies: Yes ? No ?
(If "YES" Complete Attachment A - Gov. Code ? 84308)
SUBJECT: Title
Accept the Work as Complete and Direct the Clerk to File the Notice of Completion of Contract and Acceptance of Work for the South Babb Creek Flood Mitigation Project, Under the Watersheds Asset Rehabilitation Program, Granite Rock Company, Contractor, Project No. 62084001, Contract No. C0716 (San Jose, District 6).
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RECOMMENDATION: Recommendation
A. Accept the work as complete on the South Babb Creek Flood Mitigation Project, under the Watersheds Asset Rehabilitation Program, Project No. 62084001, Contract No. C0716 as complete; and
B. Direct the Clerk of the Board to sign the Notice of Completion of Contract and Acceptance of Work and submit for recording to the Santa Clara County Clerk-Recorder.
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SUMMARY:
The construction contractor, Granite Rock Company (Contractor), has completed the South Babb Creek Flood Mitigation Project (Project), under the Watersheds Asset Rehabilitation Program.
Project Background
South Babb Creek is a tributary to Lower Silver Creek, which is a 43.6 square mile drainage area within the larger Coyote Creek watershed. The entire section of South Babb Creek is located within the city of San Jose and drains into Lower Silver Creek downstream of the Farringdon Drive bridge.
In 2018, Santa Clara Valley Water District (Valley Water) completed civil construction of floodwalls as part of the Lower Silver Creek Project at the confluence with South Babb Creek. Following construction, Valley Water completed a 100-year flood event study that included a hydrologic and hydraulic model of the Lower Silver Creek watershed in support of the Federal Emergency Management Agency's (FEMA) Cooperating Technical Partnership program. The results of the hydraulic modeling indicated that, in this event, flood water would spill along South Babb Creek onto the street surface at several bridge crossings....
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