PSC Z2KA: Repair or Alteration of Dams
Service code
Code facts
- Spend category
- Facilities & Construction Facility Related Services
- Part of
-
-
Z
- Z2
-
Z
- Contract awards
- 28 In the last 12 months
- Contract obligations
- $822,288,412 In FY2025
PSC codes and definitions come from the GSA PSC Manual and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $1,898,324,263 |
| FY2025 | $822,288,412 |
| FY2024 | $527,052,331 |
| FY2023 | $306,012,764 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Barnard Construction Company, Incorporated | $1,333,910,770 | |
| 2 | C.j. Mahan Construction Company, LLC | $248,932,888 | |
| 3 | NW Construction, Inc. | $124,563,394 | |
| 4 | GE Renewables US LLC | $68,240,904 | |
| 5 | Knight Const. & Supply, Inc. | $36,565,343 | |
| 6 | Bauer Foundation Corp | $24,461,825 | |
| 7 | Shimmick Construction Company, Inc. | $13,455,239 | |
| 8 | SAF Inc. | $10,592,141 | |
| 9 | Paragon Construction Services Of America Inc. | $8,376,615 | |
| 10 | Engineering & Construction Innovations Inc. | $8,155,845 |
See the full FY2025 ranking of PSC Z2KA contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $1,741,976,166 | |
| 2 | Department of the Interior | $148,571,134 | |
| 3 | Department of Agriculture | $5,302,057 | |
| 4 | Defense Threat Reduction Agency | $1,805,586 | |
| 5 | Air Force | $333,444 | |
| 6 | Department of Energy | $232,276 | |
| 7 | National Aeronautics and Space Administration | $103,600 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 237990 Other Heavy and Civil Engineering Construction | $1,882,840,597 | |
| 2 | 238210 Electrical Contractors and Other Wiring Installation Contractors | $7,527,038 | |
| 3 | 238320 Painting and Wall Covering Contractors | $2,933,840 | |
| 4 | 236220 Commercial and Institutional Building Construction | $1,820,297 | |
| 5 | 237310 Highway, Street, and Bridge Construction | $1,042,001 | |
| 6 | 238290 Other Building Equipment Contractors | $912,164 | |
| 7 | 238990 All Other Specialty Trade Contractors | $885,620 | |
| 8 | 236210 Industrial Building Construction | $103,600 | |
| 9 | 237110 Water and Sewer Line and Related Structures Construction | $77,202 | |
| 10 | 333996 Fluid Power Pump and Motor Manufacturing | $58,031 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | California | $1,455,236,238 | |
| 2 | Tennessee | $240,216,820 | |
| 3 | Oregon | $105,778,530 | |
| 4 | Alaska | $24,461,825 | |
| 5 | Pennsylvania | $24,162,659 | |
| 6 | Texas | $10,376,858 | |
| 7 | Washington | $9,585,965 | |
| 8 | Montana | $8,601,078 | |
| 9 | Georgia | $7,727,825 | |
| 10 | Minnesota | $6,652,634 | |
| 11 | Kentucky | $6,314,678 | |
| 12 | Utah | $5,629,683 | |
| 13 | Kansas | $3,482,929 | |
| 14 | North Dakota | $3,242,542 | |
| 15 | South Dakota | $3,145,979 | |
| 16 | West Virginia | $2,266,143 | |
| 17 | Wyoming | $1,998,867 | |
| 18 | New Mexico | $1,805,586 | |
| 19 | Maryland | $1,356,675 | |
| 20 | Colorado | $1,300,678 | |
| 21 | Nevada | $1,068,209 | |
| 22 | Arkansas | $1,011,805 | |
| 23 | Ohio | $708,557 | |
| 24 | Nebraska | $605,464 | |
| 25 | Virginia | $477,486 | |
| 26 | Mississippi | $103,600 | |
| 27 | Idaho | $52,705 | |
| 28 | Arizona | $41,334 |
Show all 28
Contract opportunities
Show 40 more
Latest 50 of 1,091 listed here. See the rest on GovTribe.
Quick answers
What is PSC Z2KA?
PSC Z2KA is Repair or Alteration of Dams, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.
How much do federal agencies spend under PSC Z2KA?
Federal contracts under PSC Z2KA obligated $822,288,412 in fiscal year 2025 and $3,553,677,770 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Z2KA?
The contractors with the most obligated under PSC Z2KA in fiscal years 2026 and 2027 are Barnard Construction Company, Incorporated ($1,333,910,770); C.j. Mahan Construction Company, LLC ($248,932,888); and NW Construction, Inc. ($124,563,394).
Which agencies buy the most under PSC Z2KA?
The agencies that obligated the most under PSC Z2KA in fiscal years 2026 and 2027 are Department of the Army ($1,741,976,166), Department of the Interior ($148,571,134) and Department of Agriculture ($5,302,057).
Which NAICS codes are used with PSC Z2KA?
The NAICS codes with the most obligated under PSC Z2KA in fiscal years 2026 and 2027 are 237990 Other Heavy and Civil Engineering Construction, 238210 Electrical Contractors and Other Wiring Installation Contractors and 238320 Painting and Wall Covering Contractors.
Where is the work under PSC Z2KA performed?
By place of performance, the states with the most contract obligations under PSC Z2KA over the last 12 months are California ($1,455,236,238), Tennessee ($240,216,820) and Oregon ($105,778,530).
What is the latest contract opportunity under PSC Z2KA?
The latest contract opportunity under PSC Z2KA is W9127N27BA005 Foster Spillway Gate Nut Replacements and Re-Tensioning, pre-solicitation from ENDIST Portland (USACE), posted October 21, 2026.
On GovTribe
See everything under PSC Z2KA
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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