Board Agenda
SUBJECT:
Title
Adopt Plans and Specifications and Authorize Advertisement for Bids for Construction of the Permanente Creek Flood Protection Project - Permanente Creek Channel Improvements, Project No. 26244001, Contract No. C0625 (Mountain View, Los Altos) (District 5).
End
RECOMMENDATION:
Recommendation
A. Adopt the plans and specifications and authorize advertisement for bids for the construction of the Permanente Creek Flood Protection Project - Permanente Creek Channel Improvements (Project) per the Notice to Bidders; and
B. Authorize the Designated Engineer to issue addenda, as necessary, during bidding.
Body
SUMMARY:
Project Background
The Permanente Creek Flood Protection Project (Project) is part of the Safe, Clean Water Program. This Project protects approximately 2,200 parcels by implementing flood detention and channel improvement elements. The proposed Project utilizes two strategically located flood detention areas throughout the watershed to maximize flood protection benefits at an acceptable cost. The Project will be constructed through three separately bid sub-projects: Rancho San Antonio Detention Basin; McKelvey Park Detention Basin; and the Permanente Creek Channel Improvements. The construction contract for Rancho San Antonio Detention Basin and McKelvey Park Detention Basin were awarded by the Board on October 11, 2016 and November 8, 2016, respectively.
Permanente Creek Channel Improvements
Moving from upstream to downstream, the Hale Creek Mountain View culvert will be replaced with a larger concrete box culvert. The existing Hale Creek concrete channel will be replaced with vertical-walled concrete channel from its confluence with Permanente Creek to 615 linear feet upstream. The U-shaped concrete channel on Permanente Creek will be deepened and enlarged from its confluence with Hale Creek to Mountain View Avenue.
From US-101 north to Charleston Road, floodwalls will be constructed on the outboard (lan...
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