LAKE 254108 Calville Bay Barge Relocation

The National Park Service is seeking a contractor to relocate and replace the water intake barge system at Callville Bay, Lake Mead National Recreation Area, as part of the LAKE 254108 Callville Bay Barge Relocation project. The project involves designing, fabricating, and installing a new 21'x21' floating barge with associated mechanical piping, electrical systems, UV disinfection equipment, wave attenuators, underground utilities, and supporting infrastructure to enable drinking water production at lower lake levels. The solicitation requires contractors to demonstrate experience in marine construction, specialized equipment handling, and complex utility coordination including work with NV Energy estimated at $200,000. The government will evaluate proposals using a best value tradeoff approach considering technical approach, project experience, past performance, management approach, schedule, and safety factors. Proposals were originally due May 23, 2025, but have been extended multiple times through various amendments, with the final deadline set for June 30, 2025, at 2:00 PM Mountain Time.

This procurement is designated as a small business set-aside under NAICS code 237990 for Other Heavy and Civil Engineering Construction, with an estimated contract value between $5,000,000 and $10,000,000. The contract requires performance to begin within 10 calendar days of award with a Notice to Proceed date of September 1, 2025, and must be completed within 580 calendar days, with liquidated damages of $1,619 per day for delays. Performance and payment bonds are required, and the contractor must provide a 20-year warranty on floating barge structural components. The work will be performed at Callville Bay Marina within Lake Mead National Recreation Area in Nevada, with specific staging areas and access routes designated for contractor use. The project includes phased construction to maintain existing barge functionality during transition, environmental protection measures to prevent invasive species spread, and coordination with park operations during peak and off-peak seasons.