BOARD AGENDA MEMORANDUM
Government Code ? 84308 Applies: Yes ? No ?
(If "YES" Complete Attachment A - Gov. Code ? 84308)
SUBJECT: Title
Receive Report of Bids, Ratify Addenda, Approve the Contingency Fund, and Award the Construction Contract to GSW Construction, Inc. for the Palo Alto Flood Basin Tide Gate Structure Seismic Retrofit and Rehabilitation Project, Project No.10394001, Contract No. C0710 in the sum of $2,782,645.00 (Palo Alto, District 7).
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RECOMMENDATION: Recommendation
A. Ratify Addendum Nos. 1, 2 and 3 to the Contract Documents for the Palo Alto Flood Basin Tide Gate Structure Seismic Retrofit and Rehabilitation Project
B. Award the Construction Contract to GSW Construction, Inc. located in San Francisco, CA, in the sum of $2,782,645.00; and
C. Approve a contingency sum of 15% in the amount of $417,396.75 and authorize the Chief Executive Officer or designee to approve individual change orders up to the designated amount.
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SUMMARY:
The Palo Alto Flood Basin Tide Gate Structure Seismic Retrofit and Rehabilitation Project (Seismic Retrofit and Rehabilitation Project) will implement improvements to the Palo Alto Flood Basin Tide Gate Structure to address seismic vulnerabilities and extend the existing structure's service life.
Project Background
The primary objective of the Palo Alto Flood Basin Tide Gate Structure (PATG) is to continue to protect residents from coastal flooding and control the downstream water levels for Matadero, Adobe and Barron Creeks, which all drain to the Palo Alto Flood Basin. Originally built in 1957, the PATG has exceeded its 50-year design life, and the surface of the concrete structure has degraded due to harsh conditions near the San Francisco Bay (Bay). The existing structure is also vulnerable to a large earthquake since seismic codes have changed significantly since 1957.
The PATG is regularly inspected and maintained by the Santa Clara Valley Water District (Valley Water), and the motorized...
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