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.
Active Definitive Contract Awarded Last action
- Contract number
- W912EE25CA014
- Awardee
-
Underwater Mechanix Services LLC UEI WXBKMQ8RLLB5
- Awarding agency
-
ENDIST Vicksburg
US Army Corps of Engineers, Department of Defense
- Obligated
- $5,791,179
Award facts
- Opportunity
-
- Stoplog Slot Construction Ouachita River, Thatcher Lock and Dam, Calion, Arkansas Pre-Solicitation · W912EE25BA009 · Posted Jun 6, 2025
- Contract value 100% obligated
- $5,791,179.00 Current and potential, with all options
- Completion date 85% complete
- Current and potential, with all options
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- Set-aside
- No set-aside
- Competition
- Full and Open Competition · 5 offers Sealed Bid
- Pricing
- Firm Fixed Price
- Place of performance
- Calion, AR 71724, USA
- Legislative mandates
-
- Davis-Bacon Act FAR subpart 22.4
- Employment Eligibility Verification (E-Verify) FAR subpart 22.18
Award details come from SAM.gov/FPDS.
Transactions
| Action | Obligated | Date |
|---|---|---|
| Supplemental Agreement for work within scope | $0 | |
| Original award | $5,791,179 |
About this award
The U.S. Army Corps of Engineers, Vicksburg District, awarded a $5.79 million definitive contract to Underwater Mechanix Services LLC for mobilization, dewatering, cofferdam construction, and installation of new stoplog slots at Thatcher Lock and Dam in Calion, Arkansas on September 10, 2025, with an ultimate completion date of December 31, 2026.
The contract is firm fixed price with no set-aside applied. The work originates from a June 2025 market research initiative that sought contractors experienced in heavy construction, marine construction, and structural repair at the Ouachita River facility, including demolition of existing concrete, installation of new concrete structures, reinforcement, and associated metalwork. Underwater Mechanix Services LLC is a self-certified small disadvantaged business based in Jacksonville, Florida, specializing in underwater emergency response, marine construction, dredging, and structural work. The Marine Construction Division performs cofferdam installation, dewatering operations, bank stabilization, and underwater structural repairs. Place of performance is Calion, Arkansas.
Quick answers
Who was awarded contract W912EE25CA014?
W912EE25CA014 was awarded to Underwater Mechanix Services LLC by ENDIST Vicksburg (US Army Corps of Engineers) on September 10, 2025.
How much is contract W912EE25CA014 worth?
The government has obligated $5,791,179 on W912EE25CA014.
Was contract W912EE25CA014 competed?
The extent of competition for W912EE25CA014 was full and open competition. The government received 5 offers.
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