Golden Gate Dam Geotechnical Investigation

The Sites Reservoir Project is seeking a contractor for geotechnical investigation drilling and testing at the future Golden Gate Dam facility, including boreholes, packer testing, televiewer measurements, P-S logging, and vibrating wire piezometers.

United States of America > Department of Defense


General
Open
Sep 24, 2026 12:00 AM
Request for Proposal (RFP)
Federal
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Description

The contractor will perform a geotechnical investigation for the future Golden Gate Dam facility. The scope includes obtaining samples from four boreholes at three locations along the right abutment, rotary-wash core borings approximately 100 to 289 feet deep, packer testing, televiewer measurements, OYO suspension P-S logging, and installation of grouted vibrating wire piezometers. Bidders must attend the mandatory site visit, comply with the Project Labor Agreement, hold a valid California contractor's license, and provide 100% payment and performance bonds. Mobilization is expected no later than October 19, 2026.

Classification Codes
NAICS541360Geophysical Surveying and Mapping Services
PSCB519Geotechnical Studies
Smart Codes
geotechnical drillingdam constructiongeotechnical testing
Specifications
Service Only
Timeline
Sep 15, 2026-Mandatory Site Visit (required)
Sep 24, 2026 12:00 AM-Bid Due Date
Oct 19, 2026-Expected Mobilization
Requirements
Required
  • Payment Bond — 100%
  • Performance Bond — 100%
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