PSC Z1KA: Maintenance of Dams
Service code
Code facts
- Spend category
- Facilities & Construction Facility Related Services
- Part of
-
-
Z
- Z1
-
Z
- Contract awards
- 35 In the last 12 months
- Contract obligations
- $60,497,113 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 | $135,142,562 |
| FY2025 | $60,497,113 |
| FY2024 | $111,759,794 |
| FY2023 | $136,073,565 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Alberici Constructors Inc. | $68,493,627 | |
| 2 | Allison Park Contractors, Inc. | $17,055,100 | |
| 3 | Koontz Electric Company, Incorporated | $13,999,269 | |
| 4 | T1 Construction LLC | $9,863,533 | |
| 5 | AMS Industrial LLC | $9,447,297 | |
| 6 | Hardman Construction Inc. | $8,500,000 | |
| 7 | Marine Diving Solutions, Llc. | $3,832,347 | |
| 8 | Abhe & Svoboda, Inc. | $1,715,560 | |
| 9 | Mcmillen, Inc. | $960,364 | |
| 10 | Slayden Constructors Inc. | $794,528 |
See the full FY2025 ranking of PSC Z1KA contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $128,792,801 | |
| 2 | Department of the Interior | $6,682,277 | |
| 3 | Department of Agriculture | $111,934 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 237990 Other Heavy and Civil Engineering Construction | $119,353,858 | |
| 2 | 237130 Power and Communication Line and Related Structures Construction | $13,999,269 | |
| 3 | 238290 Other Building Equipment Contractors | $421,553 | |
| 4 | 237310 Highway, Street, and Bridge Construction | $367,782 | |
| 5 | 238210 Electrical Contractors and Other Wiring Installation Contractors | $307,236 | |
| 6 | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $272,148 | |
| 7 | 238160 Roofing Contractors | $190,920 | |
| 8 | 336112 Light Truck and Utility Vehicle Manufacturing | $181,364 | |
| 9 | 561210 Facilities Support Services | $151,490 | |
| 10 | 562998 All Other Miscellaneous Waste Management Services | $139,750 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Arkansas | $69,623,193 | |
| 2 | Pennsylvania | $16,420,244 | |
| 3 | Montana | $14,557,971 | |
| 4 | Georgia | $9,863,533 | |
| 5 | Michigan | $8,500,000 | |
| 6 | Oregon | $7,652,779 | |
| 7 | Nevada | $3,832,347 | |
| 8 | California | $2,594,580 | |
| 9 | Wisconsin | $876,188 | |
| 10 | Minnesota | $852,986 | |
| 11 | Colorado | $356,271 | |
| 12 | Missouri | $272,148 | |
| 13 | Indiana | $228,699 | |
| 14 | Washington | $221,151 | |
| 15 | New Mexico | $164,693 | |
| 16 | Louisiana | $97,808 | |
| 17 | Illinois | $42,248 | |
| 18 | Nebraska | $33,063 | |
| 19 | Iowa | $24,290 | |
| 20 | Kansas | $23,570 | |
| 21 | Alabama | $9,591 |
Show all 21
Shares are of everything obligated under PSC Z1KA in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 508 listed here. See the rest on GovTribe.
Quick answers
What is PSC Z1KA?
PSC Z1KA is Maintenance of Dams, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.
How much do federal agencies spend under PSC Z1KA?
Federal contracts under PSC Z1KA obligated $60,497,113 in fiscal year 2025 and $443,473,033 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Z1KA?
The contractors with the most obligated under PSC Z1KA in fiscal years 2026 and 2027 are Alberici Constructors Inc. ($68,493,627); Allison Park Contractors, Inc. ($17,055,100); and Koontz Electric Company, Incorporated ($13,999,269).
Which agencies buy the most under PSC Z1KA?
The agencies that obligated the most under PSC Z1KA in fiscal years 2026 and 2027 are Department of the Army ($128,792,801), Department of the Interior ($6,682,277) and Department of Agriculture ($111,934).
Which NAICS codes are used with PSC Z1KA?
The NAICS codes with the most obligated under PSC Z1KA in fiscal years 2026 and 2027 are 237990 Other Heavy and Civil Engineering Construction, 237130 Power and Communication Line and Related Structures Construction and 238290 Other Building Equipment Contractors.
Where is the work under PSC Z1KA performed?
By place of performance, the states with the most contract obligations under PSC Z1KA over the last 12 months are Arkansas ($69,623,193), Pennsylvania ($16,420,244) and Montana ($14,557,971).
What is the latest contract opportunity under PSC Z1KA?
The latest contract opportunity under PSC Z1KA is 2026-2027 Winter Shotcrete Repair at Eisenhower Lock, solicitation from Saint Lawrence Seaway Development Corporation, posted October 9, 2026.
On GovTribe
See everything under PSC Z1KA
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
- Contacts who buy under this code
- Ask GovTribe AI about this code