This is a total small business set-aside construction contract for the U.S. Fish and Wildlife Service to design and build a concrete water control structure at the Modoc National Wildlife Refuge in Alturas, California. The project requires a durable, safe structure capable of supporting tractor trailer and pedestrian traffic, with a construction budget estimated between $50,000 and $60,000. Performance must be completed within 62 calendar days, with an anticipated period from August 31, 2026, to October 30, 2026. The contractor must comply with Davis-Bacon wage rates and provide 100% performance and payment bonds. Award will be based on technical approach, past performance, and price.