Chickamauga lock approach walls and decommissioning construction contract with base and options.
Active Definitive Contract Awarded Last action
- Contract number
- W912P526CA002
- Awardee
-
C.j. Mahan Construction Company, LLC UEI GGGWC8MCSGT7
- Awarding agency
-
ENDIST Nashville
US Army Corps of Engineers, Department of Defense
- Obligated
- $232,458,925
Award facts
- Opportunity
-
- Chickamauga Lock Replacement Approach Wall and Decommissioning Pre-Solicitation · W912P525RA001 · Posted Oct 28, 2024
- Contract value 39% obligated
-
- $232,640,170.01 Current, with exercised options
- $598,870,458.26 Potential, with all options
- Completion date 21% complete
- Current and potential, with all options
- Funding agency
- Department of the Army Department of Defense
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- PSC
- Z2KA Repair Or Alteration Of Dams
- Set-aside
- No set-aside
- Competition
- Full and Open Competition · 1 offer Negotiated Proposal / Quote
- Pricing
- Firm Fixed Price
- Place of performance
- Red Bank, TN 37415, 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 |
|---|---|---|
| Change Order | $40,000,000 | |
| Change Order | $315,000 | |
| Other Administrative Action | $0 | |
| Original award | $192,143,925 |
About this award
The Department of the Army awarded a $598.9 million definitive contract to C.J. Mahan Construction Company, LLC for construction of new downstream approach walls and decommissioning of the existing Chickamauga Lock on the Tennessee River on March 9, 2026, under firm fixed-price terms with no set-aside.
The contract executes an unpriced change order (AD006-1) to complete outstanding tasks required to finish lock chamber work, in accordance with FAR 49.402-6(b). The project involves marine-based construction and decommissioning work at Chickamauga Lock near Chattanooga, Tennessee, with place of performance in Red Bank, TN. Ultimate completion is scheduled for March 12, 2029. The originating pre-solicitation, posted October 28, 2024, characterized the effort as a multi-disciplinary marine infrastructure project estimated between $250 million and $500 million over a 66-month performance period, encompassing new downstream approach walls and decommissioning of the existing 60-foot by 360-foot navigation lock. NAICS code 237990 (Other Heavy and Civil Engineering Construction) applies, with a $45 million size standard.
Quick answers
Who was awarded contract W912P526CA002?
W912P526CA002 was awarded to C.j. Mahan Construction Company, LLC by ENDIST Nashville (US Army Corps of Engineers) on March 9, 2026.
How much is contract W912P526CA002 worth?
The government has obligated $232,458,925 on W912P526CA002. Its current value, with exercised options, is $232,640,170. Its potential value, with all options, is $598,870,458.
Which agency awarded contract W912P526CA002?
ENDIST Nashville (US Army Corps of Engineers) awarded W912P526CA002, with funding from Department of the Army (Department of Defense).
Was contract W912P526CA002 competed?
The extent of competition for W912P526CA002 was full and open competition. The government received 1 offer.
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