Contract N4008521C0077
381 Constructors · Department Of Defense · August 13, 2021
381 Constructors was awarded a federal contract by Department Of Defense (Department Of The Navy) on August 13, 2021 for $1.78 billion of work in other heavy and civil engineering construction. Performance is in Kittery, ME. It was awarded under full and open competition. The contract has been modified 72 times since the base award It uses firm fixed-price contract pricing. The most recent modification was on December 18, 2025.
Contract details
- PIID
- N4008521C0077
- Award type
- Definitive Contract
- Pricing
- Firm Fixed Price
- Set-aside
- No Set Aside Used.
- Competition
- Full And Open Competition
- NAICS
- 237990 · Other Heavy And Civil Engineering Construction
- Product / service
- Construction Of Ship Construction And Repair Facilities
- Place of performance
- Kittery, ME
- First action
- August 13, 2021
- Latest action
- December 18, 2025
Description
P-381 MULTI-MISSION DRY DOCK #1, PORTSMOUTH NAVAL SHIPYARD, KITTERY, ME
Modification timeline
-
December 18, 2025Mod P00072$519.6K
-
November 3, 2025Mod P00071$327.3K
-
October 24, 2025Mod P00070$0
-
October 15, 2025Mod P00069$17.88M
-
September 30, 2025Mod P00068$298.6K
-
September 29, 2025Mod P00067$100.00M
-
September 24, 2025Mod P00066$8.57M
-
September 10, 2025Mod P00065$412.0K
-
August 22, 2025Mod P00064$1.84M
-
August 6, 2025Mod P00063$569.7K
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Top contractors in NAICS 237990
Lifetime obligated dollars across all federal contracts in this NAICS code.
| # | Contractor | Contracts | Obligated |
|---|---|---|---|
| 1 | Great Lakes Dredge & Dock Co, Llc | 516 | $8.75B |
| 2 | Manson Construction Co | 414 | $4.11B |
| 3 | Weeks Marine, Inc. | 330 | $4.05B |
| 4 | Dragados/Hawaiian Dredging/Orion Jv | 5 | $2.78B |
| 5 | Kokosing Alberici Traylor, Llc | 1 | $1.94B |
| 6 | Washington Group/Alberici Joint Venture | 1 | $1.87B |
| 7 | Norfolk Dredging Company | 149 | $1.78B |
| 8 | 381 Constructors | 1 | $1.78B |
| 9 | Thalle Construction Co Inc | 12 | $1.59B |
| 10 | Aptim Federal Services, Llc | 2 | $1.25B |
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Frequently asked questions
What is contract N4008521C0077?
Contract N4008521C0077 is a federal contract awarded to 381 Constructors by Department Of Defense on August 13, 2021 for $1.78 billion of work classified under OTHER HEAVY AND CIVIL ENGINEERING CONSTRUCTION. It has been modified 72 times since the base award.
Who won contract N4008521C0077?
381 Constructors won contract N4008521C0077 from Department Of Defense.
How much is contract N4008521C0077 worth?
Contract N4008521C0077 has obligated $1.78 billion to date, with a total potential value of $1.94 billion if all options are exercised.