PSC Z2KA: Repair Or Alteration of Dams
Z2KA is the product and service code (PSC) federal agencies use for repair or alteration of dams, in the maint, alter, repair nonbuildings group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 16
- Spending, FY2026
- $1.9 billion
Open contracts with PSC Z2KA, due soonest
- O¿Donnell Dam Stabilization and Erosion Control
Due in 3 daysOct 12, 2026
- Chief Joseph Dam (CJD) Intake Concrete Stairs Repair
✦ The Army Corps of Engineers (Seattle District) is doing market research for repairing the concrete stair landings at the intake of Chief Joseph Dam in Bridgeport, WA. This is a…
Due in 3 daysOct 13, 2026
- Fall River Lake and Dam Damsite Park Lagoon Repair
✦ The U.S. Army Corps of Engineers (Tulsa District) wants quotes from small businesses to repair, rebuild and modernize the wastewater lagoons at Damsite Park, Fall River Lake and…
Due in 3 daysOct 13, 2026
- Sources Sought: The Dalles Dam Gate Repair Pit Fire Protection and Life Safety Upgrades
✦ The U.S. Army Corps of Engineers Portland District is doing market research for electrical, life-safety and fire-protection upgrades to the Powerhouse Gate Repair Pit at The…
Due in 6 daysOct 15, 2026
- Philpott Anchors and Instrumentation Construction
✦ The U.S. Army Corps of Engineers, Wilmington District, wants a construction contractor to install anchors and monitoring instruments at Philpott Dam near Bassett, Virginia.
Due in 6 daysOct 16, 2026
- Dworshak Powerhouse Roof Replacement
✦ The Army Corps of Engineers Walla Walla District plans to replace the roofs at the Dworshak Powerhouse in Ahsahka, Idaho.
Due in 7 daysOct 16, 2026
Where Z2KA sits in the PSC Manual
- Category: Service
- Group Z: Maint, Repair, Alter Real Property
- Group Z2: Maint, Alter, Repair Nonbuildings
- Code Z2KA: Repair Or Alteration of Dams
NAICS codes used with PSC Z2KA
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with Z2KA most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 237990 | Other Heavy and Civil Engineering Construction | $3 billion |
| 238210 | Electrical Contractors and Other Wiring Installation Contractors | $57.9 million |
| 238290 | Other Building Equipment Contractors | $21.2 million |
| 332312 | Fabricated Structural Metal Manufacturing | $18.2 million |
| 236210 | Industrial Building Construction | $16.4 million |
| 236220 | Commercial and Institutional Building Construction | $15.7 million |
| 238160 | Roofing Contractors | On 1 open |
Who buys under PSC Z2KA
Agencies with the most contract dollars under Z2KA over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Department of the Army | $2.5 billion |
| Bureau of Reclamation | $665.2 million |
| Bureau of Land Management | $21.2 million |
| National Park Service | $13 million |
| Forest Service | $7.2 million |
| National Aeronautics and Space Administration | $6.4 million |
| Department of the Air Force | $5.8 million |
| U.S. Fish and Wildlife Service | $5.3 million |
On open notices right now, the most Z2KA work comes from Dept of Defense and Department of the Interior.
Federal spending under PSC Z2KA by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $527.1 million |
| FY2025 | $822.4 million |
| FY2026 | $1.9 billion |
| FY2027 (so far) | $0 |
Who wins PSC Z2KA contracts
| Company | Obligated, last 3 years |
|---|---|
| Barnard Construction Company, Incorporated | $1.5 billion |
| NW Construction, Inc | $454.2 million |
| C. J. Mahan Construction Company, LLC | $235.1 million |
| Ge Renewables US LLC | $144.2 million |
| Knight Const. & Supply, Inc | $138.5 million |
| Ames Federal Contracting Group LLC | $115.1 million |
| Shimmick Construction Company, Inc. | $74.2 million |
| Northbank Civil and Marine, LLC | $33.7 million |
| Dubuque Barge and Fleeting Service Co | $26.5 million |
| Bauer Foundation Corp | $25 million |
Related PSC codes
- Z211 Maint – Rep – Alt/Dams
- Z212 Maint – Rep – Alt/Canals
- Z213 Maint – Rep – Alt/Mine Fire Cont
- Z214 Maint – Rep – Alt/Mine Subsidence Cont
- Z215 Maint – Rep – Alt/Surface Mine Reclam
- Z216 Maint – Rep – Alt/Dredging
- Z217 Dredging, Incl. Dustpan and Sea – Going Hoppers
- Z219 Maint – Rep – Alt/Other Consv Structure
- Z221 Maint – Rep – Alt/Airport Service Roads
- Z222 Maint – Rep – Alt/Hwys – RDS – STS – BRDGS – Ra
Frequently asked questions
What is PSC Z2KA?
Z2KA is the service code in the federal Product and Service Code (PSC) Manual for repair or alteration of dams, under Z (Maint, Repair, Alter Real Property) and Z2 (Maint, Alter, Repair Nonbuildings). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC Z2KA?
Most federal contract dollars under PSC Z2KA go with NAICS 237990 (Other Heavy and Civil Engineering Construction), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC Z2KA?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 16 open notices use PSC Z2KA right now. FedReady can match new ones to your business and email you, free.