DEPT OF DEFENSE › DEPT OF THE ARMY › US ARMY CORPS OF ENGINEERS › ENGINEER DIVISION MISSISSIPPI VALLEY › ENDIST ST LOUIS › W07V ENDIST ST LOUIS

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

Response deadline: Apr 24, 2026; 10:00 AM UTC-05:00
Set-aside: No set-aside; No Set aside used
Notice type: Solicitation
Posted on SAM.gov: Apr 23, 2026; Archives Dec 31, 2026

Description

***Amendment 0006 The purpose of this amendment is to incorporate tax exemption language. All other terms and changes remain unchanged. ***Amendment 0005 The purpose of this amendment is to remove FAR clause 52.236-16 and replace it with FAR 52.236-16 Alternate 1. This amendment also incorporates updated drawing sheets GI002 and CG203. All other terms and conditions remain unchanged. ***Amendment 0004 This amendment is issued to provide replies to ProjNet Bidder Inquiries as of 8 Aprio, and make all resulting changes. See attachments for full details of Amendment 0004. ***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 [email protected] and Whitney Dee at [email protected] 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.

From SAM.gov’s daily data file, as published on Oct 24, 2026 (UTC).

Contacts

Angie Grimes · primary
[email protected]
314-331-8965
Whitney Dee · secondary
[email protected]
314-332-8621

Attachments

BidLookup records the links this notice gives. It has not downloaded or checked the files.

Record dates

Posted on SAM.gov: Apr 23, 2026: The agency’s publication date, as SAM.gov states it.
First recorded by BidLookup: Oct 8, 2026: The UTC day of the first read of SAM.gov’s listings that stored this notice.
Last confirmed: Oct 23, 2026: The UTC day of the latest read that still listed this notice. It does not mean the notice is unchanged or still open on SAM.gov now, and it is not the index’s last-read time.
Description as published: Oct 24, 2026 (UTC): The date of the daily data file this text came from.

Published by the agency on SAM.gov as notice d02f3cee343848308827514798f3e1e4. What these dates mean

Record