Stoplog Slot Construction Ouachita River, Thatcher Lock and Dam, Calion, Arkansas
Closed Solicitation Posted
This opportunity was awarded. See the award notice from .
- Solicitation number
- W912EE25BA009
- Agency
-
ENDIST Vicksburg
US Army Corps of Engineers, Department of Defense
- Responses due
- Set-aside
- No set-aside
Opportunity facts
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- Place of performance
- Calion, Arkansas, United States
Notice details come from SAM.gov. Updated .
About this opportunity
The United States Army Corps of Engineers, Vicksburg District, has issued Invitation for Bid (IFB) Solicitation Number W912EE25BA009 for Stoplog Slot Construction at the Thatcher Lock and Dam on the Ouachita River in Calion, Arkansas. The comprehensive project involves furnishing all plant, labor, materials, and equipment for mobilization and demobilization, cofferdams and dewatering, construction of new stoplog slots, demolition, concrete work, bulkhead slot armor, bulkhead sill beam installation, handrails, miscellaneous metals, painting, and environmental protection. The work will construct stoplog slots at three locations (six total slots) to enable dewatering of miter gates or the entire lock chamber, representing the final lock on the Ouachita River to receive these upgrades. The solicitation requires contractors to complete at least 20% of work with their own organization and maintain extensive security and safety protocols. Multiple amendments have been issued, with the final bid opening conducted on September 4, 2025, at 2:00 PM Central Time, and a virtual pre-bid meeting was held on August 12, 2025.
This procurement does not utilize any set-aside designation and is unrestricted under NAICS code 237990 for Other Heavy and Civil Engineering Construction. Five contractors submitted bids ranging from $5,791,179 to $13,950,000, compared to the Independent Government Estimate of $5,536,300, with bidders including Underwater Mechanix Services, McMillen Inc., Kovilic Construction Company, Cahills Construction Inc., and OCCI Inc. The contract has an estimated value between $5,000,000 and $10,000,000 with a performance period of 210 calendar days from the notice to proceed, which is anticipated around December 1, 2025. The work will be performed at the Thatcher Lock and Dam in Calion, Arkansas, and includes liquidated damages of $1,255 per calendar day for delays. The project represents a critical infrastructure improvement to enhance lock and dam operational capabilities on the Ouachita River waterway system.
Notice text
7 versions
Update #7 · Latest ·
**04 September 2025: Bid Opening Abstract Posted: See in Abstract in Attachments**
**29 August 2025: See Correct SF1442 in Attachments**
**27 August 2025 Amendment 0003 issued: See Amendment in Attachments**
**20 August 2025 Amendment 0002 issued: See Amendment in Attachments**
**15 August 2025, Presented Pre-Meeting Slides on Tuesday, August 12, 2025: See In Attachments**
** 05 August 2025 Amendment 0001 issued: see amendment in attachments **
The Vicksburg District will hold a virtual pre-bid meeting on Tuesday, August 12, 2025, at 14:00 Central Standard Time on Microsoft Teams. All bidders are invited to attend. A meeting link will be included in this amendment. If bidders are unable to successfully use link in amendment, please email Amy Starks @ Amy.L.Starks@usace.army.mil and link will be forwarded to bidder.
W912EE - The United States Army Corps of Engineers, Vicksburg District, has issued Invitation for Bid (IFB) Solicitation Number W912EE25BA009 for Stoplog Slot Construction, Ouachita River, Thatcher Lock and Dam, Calion, Arkansas.
The work consists of furnishing all plant, labor, materials, and equipment, for mobilization and demobilization; cofferdams and dewatering; construction of the new stoplog slots and associated work, including demolition, concrete work, bulkhead slot armor, bulkhead sill beam, handrails, miscellaneous metals, and painting; and environmental protection.
** See attachments for Soliciation Document w/Specifications and Drawings **
Update #6 ·
**29 August 2025: See Correct SF1442 in Attachments**
**27 August 2025 Amendment 0003 issued: See Amendment in Attachments**
**20 August 2025 Amendment 0002 issued: See Amendment in Attachments**
**15 August 2025, Presented Pre-Meeting Slides on Tuesday, August 12, 2025: See In Attachments**
** 05 August 2025 Amendment 0001 issued: see amendment in attachments **
The Vicksburg District will hold a virtual pre-bid meeting on Tuesday, August 12, 2025, at 14:00 Central Standard Time on Microsoft Teams. All bidders are invited to attend. A meeting link will be included in this amendment. If bidders are unable to successfully use link in amendment, please email Amy Starks @ Amy.L.Starks@usace.army.mil and link will be forwarded to bidder.
W912EE - The United States Army Corps of Engineers, Vicksburg District, has issued Invitation for Bid (IFB) Solicitation Number W912EE25BA009 for Stoplog Slot Construction, Ouachita River, Thatcher Lock and Dam, Calion, Arkansas.
The work consists of furnishing all plant, labor, materials, and equipment, for mobilization and demobilization; cofferdams and dewatering; construction of the new stoplog slots and associated work, including demolition, concrete work, bulkhead slot armor, bulkhead sill beam, handrails, miscellaneous metals, and painting; and environmental protection.
** See attachments for Soliciation Document w/Specifications and Drawings **
Update #5 ·
**20 August 2025 Amendment 0002 issued: See Amendment in Attachments**
**15 August 2025, Presented Pre-Meeting Slides on Tuesday, August 12, 2025: See In Attachments**
** 05 August 2025 Amendment 0001 issued: see amendment in attachments **
The Vicksburg District will hold a virtual pre-bid meeting on Tuesday, August 12, 2025, at 14:00 Central Standard Time on Microsoft Teams. All bidders are invited to attend. A meeting link will be included in this amendment. If bidders are unable to successfully use link in amendment, please email Amy Starks @ Amy.L.Starks@usace.army.mil and link will be forwarded to bidder.
W912EE - The United States Army Corps of Engineers, Vicksburg District, has issued Invitation for Bid (IFB) Solicitation Number W912EE25BA009 for Stoplog Slot Construction, Ouachita River, Thatcher Lock and Dam, Calion, Arkansas.
The work consists of furnishing all plant, labor, materials, and equipment, for mobilization and demobilization; cofferdams and dewatering; construction of the new stoplog slots and associated work, including demolition, concrete work, bulkhead slot armor, bulkhead sill beam, handrails, miscellaneous metals, and painting; and environmental protection.
** See attachments for Soliciation Document w/Specifications and Drawings **
Update #4 ·
**15 August 2025, Presented Pre-Meeting Slides on Tuesday, August 12, 2025: See In Attachments**
** 05 August 2025 Amendment 0001 issued: see amendment in attachments **
The Vicksburg District will hold a virtual pre-bid meeting on Tuesday, August 12, 2025, at 14:00 Central Standard Time on Microsoft Teams. All bidders are invited to attend. A meeting link will be included in this amendment. If bidders are unable to successfully use link in amendment, please email Amy Starks @ Amy.L.Starks@usace.army.mil and link will be forwarded to bidder.
W912EE - The United States Army Corps of Engineers, Vicksburg District, has issued Invitation for Bid (IFB) Solicitation Number W912EE25BA009 for Stoplog Slot Construction, Ouachita River, Thatcher Lock and Dam, Calion, Arkansas.
The work consists of furnishing all plant, labor, materials, and equipment, for mobilization and demobilization; cofferdams and dewatering; construction of the new stoplog slots and associated work, including demolition, concrete work, bulkhead slot armor, bulkhead sill beam, handrails, miscellaneous metals, and painting; and environmental protection.
** See attachments for Soliciation Document w/Specifications and Drawings **
Update #3 ·
** 05 August 2025 Amendment 0001 issued: see amendment in attachments **
The Vicksburg District will hold a virtual pre-bid meeting on Tuesday, August 12, 2025, at 14:00 Central Standard Time on Microsoft Teams. All bidders are invited to attend. A meeting link will be included in this amendment. If bidders are unable to successfully use link in amendment, please email Amy Starks @ Amy.L.Starks@usace.army.mil and link will be forwarded to bidder.
W912EE - The United States Army Corps of Engineers, Vicksburg District, has issued Invitation for Bid (IFB) Solicitation Number W912EE25BA009 for Stoplog Slot Construction, Ouachita River, Thatcher Lock and Dam, Calion, Arkansas.
The work consists of furnishing all plant, labor, materials, and equipment, for mobilization and demobilization; cofferdams and dewatering; construction of the new stoplog slots and associated work, including demolition, concrete work, bulkhead slot armor, bulkhead sill beam, handrails, miscellaneous metals, and painting; and environmental protection.
** See attachments for Soliciation Document w/Specifications and Drawings **
Update #2 ·
** 05 August 2025 Amendment 0001 issued: see amendment in attachments **
W912EE - The United States Army Corps of Engineers, Vicksburg District, has issued Invitation for Bid (IFB) Solicitation Number W912EE25BA009 for Stoplog Slot Construction, Ouachita River, Thatcher Lock and Dam, Calion, Arkansas.
The work consists of furnishing all plant, labor, materials, and equipment, for mobilization and demobilization; cofferdams and dewatering; construction of the new stoplog slots and associated work, including demolition, concrete work, bulkhead slot armor, bulkhead sill beam, handrails, miscellaneous metals, and painting; and environmental protection.
** See attachments for Soliciation Document w/Specifications and Drawings **
Update #1 ·
W912EE - The United States Army Corps of Engineers, Vicksburg District, has issued Invitation for Bid (IFB) Solicitation Number W912EE25BA009 for Stoplog Slot Construction, Ouachita River, Thatcher Lock and Dam, Calion, Arkansas.
The work consists of furnishing all plant, labor, materials, and equipment, for mobilization and demobilization; cofferdams and dewatering; construction of the new stoplog slots and associated work, including demolition, concrete work, bulkhead slot armor, bulkhead sill beam, handrails, miscellaneous metals, and painting; and environmental protection.
** See attachments for Soliciation Document w/Specifications and Drawings **
Files
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Notice history
| Notice | Type | Posted |
|---|---|---|
| Stoplog Slot Construction Ouachita River, Thatcher Lock and Dam, Calion, Arkansas | Award Notice | |
| This notice | Solicitation | |
| Stoplog Slot Construction Ouachita River, Thatcher Lock and Dam, Calion, Arkansas | Pre-Solicitation | |
| Stoplog Slot Construction Ouachita River, Thatcher Lock and Dam, Calion, Arkansas | Pre-Solicitation |
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