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Solicitation, first published as special notice

LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

W912P926RA004

Department of the Army, W07V Endist ST Louis. Other Heavy and Civil Engineering Construction.

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Offers due

November 16, 2026 at 11:00 AM EST

61 days from now. Posted September 2, 2026, first published March 31, 2026.

Description

As published on SAM.gov.

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 whitney.r.dee@usace.army.mil. 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.

Publications

Every notice SAM.gov issued under this solicitation number, oldest first. Each is a separate record on SAM.

  1. March 31, 2026

    Special notice, originally sources sought

    DRAFT Solicitation for Feedback - LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

    Due May 1, 2026 at 11:00 AM EDT. SAM.gov, notice 2667cc6866954810bad900da91e1f05e

  2. April 2, 2026

    Special notice

    DRAFT Solicitation for Feedback - LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

    Due May 1, 2026 at 11:00 AM EDT. SAM.gov, notice 8704375bd7c34f68bc74a8163a056658

  3. May 4, 2026

    Presolicitation, originally special notice

    DRAFT Solicitation for Feedback - LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

    Due June 12, 2026 at 11:00 AM EDT. SAM.gov, notice 044c9f25a8bf4299a258e10cb0235065

  4. May 4, 2026

    Presolicitation

    Pre-Solicitation Synopsis - LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

    Due June 12, 2026 at 11:00 AM EDT. SAM.gov, notice 254b83c224064b73a9d86369375ceec8

  5. May 8, 2026

    Sources sought, originally special notice

    CLIN STRUCTURE FOR PUBLIC FEEDBACK - LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

    Due May 15, 2026 at 11:00 AM EDT. SAM.gov, notice 0167736617e24c459ab192894d419920

  6. June 2, 2026

    Presolicitation

    Pre-Solicitation Synopsis - LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

    Due July 15, 2026 at 11:00 AM EDT. SAM.gov, notice a6dda172d3fa484191adbc5631fadf77

  7. July 14, 2026

    Presolicitation

    Pre-Solicitation Synopsis - LOCK AND DAM 25 NEW 1,200 FT LOCK NAVIGATION AND ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

    Due July 14, 2026 at 10:15 AM EDT. SAM.gov, notice 8e18158176c647cbafb2d722e6b68fe3

  8. July 14, 2026

    Solicitation, originally presolicitation

    Due November 16, 2026 at 11:00 AM EST. SAM.gov, notice 8f8193b0e9924e128abad534366aba7c

  9. August 17, 2026

    Solicitation

    Due November 16, 2026 at 11:00 AM EST. SAM.gov, notice e12f362fe2c6419fbf7c547626ac81fd

  10. September 2, 2026

    Solicitation

    Due November 16, 2026 at 11:00 AM EST. SAM.gov, notice ee65c92564ab49f2a49b169edf9955d5

Points of contact

Also open from this buyer