Grand Coulee Nathaniel Washington Power Plant G23

The Department of the Interior Bureau of Reclamation anticipates soliciting a firm fixed price construction contract in FY27 for replacement of a damaged stator bottom bar in Generator 23 (G23) and removal and replacement of top bars for access, with an August 28, 2026 sources-sought response deadline.

Work is located at Nathaniel Washington Power Plant near Grand Coulee Dam, approximately 90 miles west of Spokane, Washington, in Okanogan County. The Government will furnish replacement stator bars. Site work is restricted to normal working hours of 0630–1700 Monday through Friday; material deliveries are limited to Monday through Thursday, 0800–1500 with 48-hour advance coordination. Contractors must maintain a full-time onsite safety representative, develop a Critical Path Method construction schedule using Oracle Primavera P6, and implement a web-based Contract Document Management System. Compliance with Bureau of Reclamation Safety and Health Standards is mandatory.

The estimated contract value ranges from $500,000 to $1,500,000 under NAICS 237990. Performance period is 210 days total: 120 days pre-mobilization submittals, 90 days on-site work, and 30 days post-construction activities. The $45.0 million size standard applies.

Interested contractors should submit responses by August 28, 2026 at 1 p.m. MDT, including SAM.gov UEI number, statement of interest as prime and/or subcontractor, construction bonding capacity, size status and SBA certifications, capability to manage complex requirements, and past performance on three to five similar projects completed within five to eight years. Direct questions to colby_clifford@ios.doi.gov and arcia_fusi@ios.doi.gov.