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

Notice b190f3c683574fc0b92122df29dc9c1a (solicitation W912P926RA001) from DEPT OF DEFENSE, W07V ENDIST ST LOUIS, posted 2026-03-27, responses due 2026-04-24T15:00:00.000Z. Status: open.

| Field | Value |
| --- | --- |
| Notice ID | b190f3c683574fc0b92122df29dc9c1a |
| Solicitation number | W912P926RA001 |
| Type | Solicitation |
| Agency | DEPT OF DEFENSE |
| Sub-tier | DEPT OF THE ARMY |
| Office | W07V ENDIST ST LOUIS |
| Posted | 2026-03-27T23:55:36.000Z |
| Response deadline (UTC) | 2026-04-24T15:00:00.000Z |
| Set-aside | No Set aside used |
| NAICS | 237990 |
| PSC | Y1PZ |
| Place of performance | Winfield, MO, USA |
| Award | - |

## Description

***Amendment 0003 This amendment is issued to provide replies to ProjNet Bidder Inquiries, and make all resulting changes. ProjNet Bidder Inquiries is re-opened through 4:00pm CST, 3 April 2026. There are some attachments that must be requested in order to be provided via DoD SAFE. See attachments for full details of amendment 0003. ***Amendment 0002 This amendment is hereby issued to make administrative updates to the above-referenced solicitation in accordance with the Government Responses to ProjNet Bidder Inquiries as of 4 March 2026: ***Amendment 0001 This amendment is issued to make administrative updates to the solicitation. ***Proposal will be submitted via EMAIL Angie Grimes at angie.l.grimes@usace.army.mil and Whitney Dee at whitney.r.dee@usace.army.mil 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.

## Sources

- View on SAM.gov: https://sam.gov/opp/b190f3c683574fc0b92122df29dc9c1a/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 b190f3c683574fc0b92122df29dc9c1a." samgovapi.io, https://samgovapi.io/opportunity/b190f3c683574fc0b92122df29dc9c1a, data as of 2026-11-14. Primary record: https://sam.gov/opp/b190f3c683574fc0b92122df29dc9c1a/view

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