12-03-19 Site Visit Attendees 20B0004 LGA NavLock Leak Repair.pdf

This solicitation package is for repair work at the Little Goose Navigation Lock located in Columbia County, Washington. The scope of work includes removing an eight inch by four inch section of concrete, drilling a six inch hole approximately 142 feet through the dam structure and installing a waterstop, installing joint and crack sealant underwater along existing cracks, and installing covers over the waterstop and access slot. The work window is during the scheduled Navigation Lock Outage from March 7, 2020 through March 29, 2020. Performance and payment bonds are required. The apparent low bidder must meet experience requirements for down-hole hammer drilling in concrete over 100 feet deep and underwater or marine environment concrete demolition, repair, and surface sealing. Bidders are not required to submit responsibility criteria documentation with their initial bid, but the low bidder must be able to provide such documentation within 24 hours if requested by the Army Corps of Engineers Walla Walla District after bid opening.