USACE Portland District seeks construction firms to submit competitive firm-fixed-price bids for repair and rehabilitation of Tainter Valves TV3 and TV4 at John Day Lock and Dam, with specifications and planset included in the solicitation. Two site visits are scheduled for Wednesday, 28 October 2026: 9:00 A.M. at John Day Dam in Rufus, OR, and 2:00 P.M. at The Dalles Dam in The Dalles, OR, where contractors can view a removed Tainter Valve. Attendees must register by email to Andrew Sprys and Justin Figueredo by 11:00 A.M. Friday, 23 October 2026, providing attendee, company, contact, and U.S. citizenship information. Site visit attendees must be U.S. citizens with REAL ID and comply with EM 385-1-1 PPE requirements; a similar The Dalles Lock and Dam requirement will be solicited after this solicitation. The estimated construction cost is between $1,000,000 and $5,000,000, and CMMC Level 1 (Self) or higher is required prior to award and must be maintained for applicable contractor systems during performance.