C--D-B North Fume Replacement, Sacramento National Wildlife Refuge

The contract pertains to the design-build replacement of the North Flume at the Sacramento National Wildlife Refuge in Willows, California, under solicitation number 140FGA26R0001, with an estimated value between $500,000 and $1,000,000. The project is structured as a total small business set-aside under NAICS code 237990 and follows FAR 36.3 Two-Phase Design-Build Selection Procedures with a best-value tradeoff evaluation. The contractor is responsible for all aspects of the project, including site investigation, environmental permitting, design, demolition of the existing flume, and construction of a new fire-resistant corrugated metal pipe flume with a minimum 50-year service life, alongside associated infrastructure such as walkways, stoplog slots, and erosion control measures. The work must comply with strict environmental protections, particularly for the endangered giant garter snake habitat, and requires coordination with U.S. Fish and Wildlife Service biologists and regulatory agencies. The performance period spans 18 months, beginning April 20, 2026, and concluding October 20, 2027, with the design and permitting phase to be completed in the first six months and construction in the remaining twelve. All design work must be performed by a licensed California Professional Engineer, and the contractor must submit biweekly status updates to ensure compliance with schedule and environmental mandates. The contract is firm-fixed-price and incorporates mandatory far clauses addressing site conditions, material and workmanship, safety, permits, accident prevention, inspection of construction, and termination for convenience. The contractor is obligated to adhere to the International Building Code, National Electrical Code, NFPA 101, ADA/ABA Accessibility Guidelines, and all applicable federal, state, and local regulations. Environmental requirements include immediate cessation of work upon discovery of protected species, proper handling and disposal of hazardous materials, and compliance with federal environmental laws such as the Endangered Species Act and Clean Air Act. Labor compliance mandates Davis-Bacon wage rates only for truck drivers actively working on-site, while all other hauling is excluded. The contractor must also address cultural and historical preservation protocols, reporting any archaeological or historical findings immediately, with equitable adjustments to time and price as needed. All submissions, including proposals, invoices, and daily reports, must reference the contract number and are to be delivered electronically via email to the Contracting Officer, Shanen Fox, with payment processed