JOHN DAY DAM NAVIGATION LOCK TAINTER VALVE (TV) REPAIRS TV3 AND TV4

Amendment 0002 - See attached Amendment 0002 - The purpose of this amendment is to incorporate clauses that were unintentionally removed by the Army Contract Writing System and to extend the bid submission date by 11 days from 11:00 A.M. Pacific on 19-NOV-2026 to 11:00 A.M. Pacific on 30-NOV-2026; the bid opening will occur at 1:00 P.M. on the date bids are due. Amendment 0001 - See attached Amendment 0001 and updated solicitation notice below for all details regarding the site visit date and link up location changes: The U.S. Army Corps of Engineer (USACE) Portland District is soliciting construction firms who are interested in submitting a competitive firm-fixed-price bid for this project. This solicitation announcement is for the repair and rehabilitation of two Tainter Valves (TV3 and TV4) at the John Day Lock and Dam (JDA). See the attached Solicitation, which includes the Specifications, and the attached Planset for all details. Because a similar requirement at The Dalles Lock and Dam will be solicited after this solicitation, the Government will host the following two site visits on Tuesday, 03 November 2026: 1. 9:00 A.M. @ John Day Dam (Oregon side), Exit 109 from I-84, John Day Dam Rd, Rufus, OR 97050. Check in with security at the front gate and then proceed to the parking lot across the road from the construction trailer; see the link up location map in the solicitation amendment notice. 2. 2:00 P.M. @ The Dalles Dam (Washington side), Lyle, WA 98635. Take US-197N and exit towards The Dalles Dam Boat Launch and park on the left hand side of the road immediately after turning left 90 degrees towards the Boat Launch; see the link up location map in the solicitation amendment notice. Contractors will be able to see a removed Tainter Valve at The Dalles Dam. Send an email to Andrew Sprys and Justin Figueredo by 11:00 A.M. on Wednesday, 28 October 2026, with the following information to register for the site visits: Solicitation Number: W9127N27BA009, Project