D-B North Fume Replacement, Sacramento NWR

The U.S. Fish and Wildlife Service is soliciting design-build services for the North Flume Replacement project at Sacramento National Wildlife Refuge in Willows, California under solicitation number 140FGA26R0001. The scope of work encompasses comprehensive services including site investigation, architect-engineer scoping, data collection, design development at 35% and 65%-100% completion levels, environmental permitting assistance, and complete construction of a replacement flume structure with a minimum 50-year service life. Key requirements include that the replacement flume be constructed from fire-resistant corrugated metal pipe with a conveyance capacity of at least 30 cubic feet per second, installation of OSHA-compliant walkways with handrails, stoplog slots with replacement wood stoplogs, and compliance with giant garter snake avoidance measures including preconstruction biological surveys and restricted excavation timing between May 1 and October 31. The contractor's architect-engineer must be a licensed Professional Engineer in California, and the contractor bears full responsibility for obtaining all necessary environmental permits including Section 404, Section 401, and Streambed Alteration Agreements. Evaluation will be based on recent relevant project experience, corporate management and integrity, past performance, project delivery plans, key personnel qualifications, and detailed cost breakdowns by task. The Phase 1 proposal deadline is March 20, 2026 at 10:00 AM Pacific Time, with a maximum of three offerors selected to advance to Phase 2 for final competitive negotiations based on best value.

This solicitation is designated as a Total Small Business set-aside with no identified current contractors. The estimated contract value ranges from $500,000 to $1,000,000 for the entire design-build effort covering design, permitting, and construction. The overall period of performance extends from April 20, 2026 to April 28, 2028, comprising 24 months total with the design and permitting phase (Tasks 1-3) to be completed within 12 months from Notice to Proceed and the construction phase within 12 months from completion and acceptance of design deliverables. The contractor must commence work within three calendar days of receiving the notice to proceed and must provide performance and payment bonds within 14 calendar days of award. Place of performance is located at 752 County Road 99W, Willows, California 95988, accessible via Interstate 5 and local roads, with all proposals to be submitted electronically to shanen_fox@fws.gov. The project is subject to Davis-Bacon prevailing wage requirements, Buy American construction materials provisions, and standard working hours of Monday through Friday, 7:00 AM to 4:30 PM local time, excluding federal holidays.