Lock and Dam 25 New 1, 200 FT Lock Navigation and Ecosystem Sustainability Program (Nesp)

DEPT OF DEFENSE · DEPT OF THE ARMY · USACE · MVD · W07V ENDIST ST LOUIS is soliciting Lock and Dam 25 New 1, 200 FT Lock Navigation and Ecosystem Sustainability Program (Nesp). Solicitation number W912P926RA004. Classified under NAICS 237990 — Other Heavy and Civil Engineering Construction. Product/service code Y1PZ — CONSTRUCTION OF OTHER NON-BUILDING FACILITIES. Responses are due by 16 November 2026 16:00 UTC. Posted on SAM.gov, the US federal contract opportunities system; registration is required to bid.

NESP LD25 1200 ft Lock --------- The new lock at Lock 25 will be constructed in the downstream direction in the auxiliary miter gate bay, which has minimum provisions for an adjacent 360-foot-long lock and is referred to as Location 3 in the System Feasibility Study (September 2004). This contract will consist of construction of a new 1,200-foot drilled shaft-founded lock in the auxiliary miter gate bay, a 1,200-foot upstream ported guard wall, and a 650-foot downstream guard wall. The existing 600-foot lock will remain in place and once the new lock is constructed and operational, will become an auxiliary lock chamber used primarily by recreation traffic or when the 1,200 ft lock is out of service. ------------ SEE ATTACHMENT FOR FULL DETAILS OF UPCOMING REQUIREMENT SOLICITATION. --------- Attachment 0004 Plans (Volume 1-7) and Attachment 0005 Navisworks Federated Model must be requested via email to Contract Specialist, Whitney Dee at [contact details removed]. Upon request they will be sent via DoD SAFE, since the files are too large to attach within PIEE or send via email. ------ SEE UPDATE LABELED 0817 FOR FULL DETAILS OF UPCOMING PRE-PROPOSAL SITE VISIT. -------------------- AMENDMENT 0001 provides updates in accordance with some of the ProjNet Bidder Inquiries and Government Responses posted through 31 August 2026. Additional questions and answers and updates will be provided in forthcoming amendments. See all attachments for full details.