# LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)

Notice d8f9ee6183e142fcad8c573866edd764 (solicitation W912P926RA001) from DEPT OF DEFENSE, W07V ENDIST ST LOUIS, posted 2026-01-22, responses due 2026-03-31T16:00:00.000Z. Status: open.

| Field | Value |
| --- | --- |
| Notice ID | d8f9ee6183e142fcad8c573866edd764 |
| Solicitation number | W912P926RA001 |
| Type | Presolicitation |
| Agency | DEPT OF DEFENSE |
| Sub-tier | DEPT OF THE ARMY |
| Office | W07V ENDIST ST LOUIS |
| Posted | 2026-01-22T17:29:59.000Z |
| Response deadline (UTC) | 2026-03-31T16:00:00.000Z |
| Set-aside | - |
| NAICS | 237990 |
| PSC | Y1PZ |
| Place of performance | - |
| Award | - |

## Description

The U. S. Army Corps of Engineers, St. Louis District, is seeking a firm to furnishing all equipment, labor, operators, supervision/site superintendent, quality control, supplies, materials, and incidentals necessary to satisfactorily perform and provide construction activities of lock foundation and site preparation work. The lock foundation work establishes the lock wall and floor foundation. It consists of excavation and disposal of existing scour protection riprap that was part of previous scour hole emergency repair, dredging of sand fill, placement of sand fill in the proposed lock foundation, and placement of riprap berm. Work also includes the construction of a separator wall that will separate the river side riprap berm from the dredged sand that will be placed as foundation material for the future river wall monoliths and lock floor. The separate wall will be a sheet pile wall braced with piles. This effort also includes a deflector on the downstream side of the dam to route water flowing through the tainter gated dam adjacent to the river walls around the sheet pile separator wall. For the site preparation work, additional dredge borrow will be placed upland for a future staging and laydown area and a sanitary outfall pipe will be installed. ---- Presolicitation Synopsis Update 0001 - update the POP information.

## Sources

- View on SAM.gov: https://sam.gov/opp/d8f9ee6183e142fcad8c573866edd764/view
- Data as of 2026-11-14. Source: https://sam.gov/data-services/Contract%20Opportunities/datagov

## Cite this

"LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP), SAM.gov contract opportunity d8f9ee6183e142fcad8c573866edd764." samgovapi.io, https://samgovapi.io/opportunity/d8f9ee6183e142fcad8c573866edd764, data as of 2026-11-14. Primary record: https://sam.gov/opp/d8f9ee6183e142fcad8c573866edd764/view

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