The U.S. Army Corps of Engineers Portland District is seeking construction firms for a firm-fixed-price contract to replace the Bonneville Lock and Dam Navigation Lock 1 Bridge in Cascade Locks, Oregon. The project involves building a new single-span steel girder bridge on a new alignment, partial demolition of the existing bridge, and construction of approach roadways, with work requiring phasing to keep critical access open. The estimated construction cost is between $10 million and $25 million, and the solicitation is set aside for total small businesses under NAICS 237310. Performance will require working near high-voltage power lines, environmental restrictions, and barge crane lifts, along with lead and asbestos removal. The solicitation is tentatively scheduled for release in July 2026, with proposals due in August 2026.