Big Sandy Dam Reservoir Enlargement

This solicitation seeks construction services for the Big Sandy Dam Reservoir Enlargement project being conducted by the Bureau of Reclamation within the Department of the Interior. Offerors must have experience constructing cement-bentonite cutoff walls, installing HDPE piping and toe drains, placing concrete and backfill, and performing related excavation and construction activities. Proposals will be evaluated based on technical qualifications, past performance, and price. The response deadline is October 28, 2020. Amendments to the solicitation have extended the period of performance from December 24, 2020 to December 9, 2022.

This is a total small business set-aside with a NAICS code of 237990 and size standard of $39.5 million. The estimated construction quantities include 1,450 cubic yards of concrete and the project value is between $10-25 million. Work will be performed at the Big Sandy Dam reservoir located in Sweet Water County, Wyoming. Engineering drawings and specifications within 16 attachments provide design and technical requirements for raising the spillway crest, installing a cement-bentonite cutoff wall measuring 30 inches wide and up to 45 feet deep, and placing HDPE piping and toe drains as part of enlarging the reservoir's capacity.