01 / Contract Profile
W912P521C0009 Federal Contract Award
Agency code 2100
TO IMPLEMENT CHANGE CL021-2 (WATTS BAR BRIDGING) AND CL025 (DRILLED SHAFT REMEDIATION) IAW FAR 52.236-2 DIFFERING SITE CONDITIONS. CL-021-2 IS TO DEFINITIZE UCO PART 1 EXECUTED IN W912P521C0009-P00008. THE CCD DATE REMAINS UNCHANGED AT 30 JAN 2026.
02 / Contract Size and Status
What is the recorded size and timing of this contract?
03 / Spending Trend
W912P521C0009 contract spending by fiscal year
Annual net obligations across the complete period available for this agency and PIID, from the first recorded fiscal year through the latest contract action.
Latest fiscal year obligations$2.85M
FY 2026Net obligationsComplete recorded range
| Fiscal year | Net obligations | Actions | Change |
|---|---|---|---|
| FY 2021 | $60.86M | 2 | — |
| FY 2022 | $96.8K | 2 | −99.8% |
| FY 2023 | $4.20M | 7 | +4,235.8% |
| FY 2024 | $2.56M | 3 | −39.0% |
| FY 2025 | $10.46M | 7 | +308.4% |
| FY 2026 | $2.85M | 2 | −72.7% |
04 / Federal Buyer
Which organization manages this contract?
| Department | Contracting agency | Contracting office |
|---|---|---|
| DEPT OF DEFENSE | DEPT OF THE ARMY | W072 ENDIST NASHVILLE |
05 / Contractor
Who holds this federal contract?
C.J. MAHAN CONSTRUCTION COMPANY, LLC
UEI GGGWC8MCSGT7 · CAGE 3N7D2
06 / NAICS Industries
Which industries classify this contract?
| Code | Description | Obligations | Actions | Share |
|---|---|---|---|---|
| 237990 | OTHER HEAVY AND CIVIL ENGINEERING CONSTRUCTION | $81.03M | 23 | 100.0% |
07 / Products and Services
What products or services were purchased?
| Code | Description | Obligations | Actions | Share |
|---|---|---|---|---|
| Z2KA | REPAIR OR ALTERATION OF DAMS | $81.03M | 23 | 100.0% |
08 / Place of Performance
Where is the work recorded?
CHATTANOOGA, HAMILTON, TENNESSEE, UNITED STATES
ZIP 374157072
09 / Contract Actions
What modifications and obligations were recorded?
| Signed date | Modification | Obligation | Contracting office | NAICS | PSC |
|---|---|---|---|---|---|
| May 27, 2026 | PZ0009 | $2.61M | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Mar 18, 2026 | A00013 | $243.1K | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Nov 25, 2025 | A00012 | $0 | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Sep 26, 2025 | P00008 | $600.0K | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Sep 5, 2025 | A00011 | $75.0K | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Aug 4, 2025 | A00010 | $74.6K | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| May 7, 2025 | A00009 | $1.8K | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Apr 23, 2025 | P00007 | $9.47M | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Feb 3, 2025 | A00008 | $238.1K | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Dec 3, 2024 | A00007 | $0 | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Oct 28, 2024 | P00006 | $2.56M | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Jun 27, 2024 | A00006 | $1.6K | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Nov 21, 2023 | P00005 | $0 | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Oct 13, 2023 | P00004 | $3.68M | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
| Aug 31, 2023 | A00005 | $1.6K | W072 ENDIST NASHVILLEOffice code W912P5 | 237990 | Z2KA |
10 / Reading the Contract
How should this award record be interpreted?
Read the PIID as a transaction history, not as a single purchase price. Net obligations combine the base action with later increases, reductions, corrections, and deobligations recorded under the same contract.
Verify the buyer
Agency and office identify who manages the procurement relationship.
Follow modifications
Each action can change funding, scope, dates, or administrative terms.
Compare the market
Use NAICS, PSC, and the contractor profile to identify related buyers and competitors.