PSC Z1KB: Maintenance of Canals
Service code
Code facts
- Spend category
- Facilities & Construction Facility Related Services
- Part of
-
-
Z
- Z1
-
Z
- Contract awards
- 14 In the last 12 months
- Contract obligations
- $152,918,364 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 | $211,027,670 |
| FY2025 | $152,918,364 |
| FY2024 | $356,283,563 |
| FY2023 | $136,557,587 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Orion Marine Construction, Inc. | $99,259,100 | |
| 2 | Weeks Marine, Inc. | $61,734,872 | |
| 3 | Callan Marine LIMITED | $20,693,538 | |
| 4 | Inland Dredging Company, L.L.C. | $10,406,796 | |
| 5 | Mcmillen, Inc. | $7,161,200 | |
| 6 | Mike Hooks, LLC | $5,759,400 | |
| 7 | Maverick Constructors, LLC | $4,002,260 | |
| 8 | Mohawk Valley Materials Inc. | $3,410,785 | |
| 9 | Curtin Maritime Corp | $1,730,642 | |
| 10 | Construcciones Jose Carro, S.e. | $1,355,624 |
See the full FY2025 ranking of PSC Z1KB contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $203,091,983 | |
| 2 | Department of the Interior | $7,891,195 | |
| 3 | Department of Agriculture | $44,491 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 237990 Other Heavy and Civil Engineering Construction | $210,500,923 | |
| 2 | 238910 Site Preparation Contractors | $364,491 | |
| 3 | 238110 Poured Concrete Foundation and Structure Contractors | $189,000 | |
| 4 | 561730 Landscaping Services | $117,019 | |
| 5 | 221310 Water Supply and Irrigation Systems | $10,200 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Texas | $198,336,971 | |
| 2 | California | $7,161,200 | |
| 3 | New York | $3,410,785 | |
| 4 | Puerto Rico | $1,355,624 | |
| 5 | Mississippi | $620,328 | |
| 6 | Louisiana | $320,000 | |
| 7 | Arizona | $189,000 | |
| 8 | Florida | $144,783 | |
| 9 | Wyoming | $117,019 | |
| 10 | Maryland | $10,200 |
Shares are of everything obligated under PSC Z1KB 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 328 listed here. See the rest on GovTribe.
Quick answers
What is PSC Z1KB?
PSC Z1KB is Maintenance of Canals, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.
How much do federal agencies spend under PSC Z1KB?
Federal contracts under PSC Z1KB obligated $152,918,364 in fiscal year 2025 and $856,787,183 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Z1KB?
The contractors with the most obligated under PSC Z1KB in fiscal years 2026 and 2027 are Orion Marine Construction, Inc. ($99,259,100); Weeks Marine, Inc. ($61,734,872); and Callan Marine LIMITED ($20,693,538).
Which agencies buy the most under PSC Z1KB?
The agencies that obligated the most under PSC Z1KB in fiscal years 2026 and 2027 are Department of the Army ($203,091,983), Department of the Interior ($7,891,195) and Department of Agriculture ($44,491).
Which NAICS codes are used with PSC Z1KB?
The NAICS codes with the most obligated under PSC Z1KB in fiscal years 2026 and 2027 are 237990 Other Heavy and Civil Engineering Construction, 238910 Site Preparation Contractors and 238110 Poured Concrete Foundation and Structure Contractors.
Where is the work under PSC Z1KB performed?
By place of performance, the states with the most contract obligations under PSC Z1KB over the last 12 months are Texas ($198,336,971), California ($7,161,200) and New York ($3,410,785).
What is the latest contract opportunity under PSC Z1KB?
The latest contract opportunity under PSC Z1KB is Gulf Intracoastal Waterway High Island to Causeway with Channel to Port Bolivar Maintenance Dredging, solicitation from ENDIST Galveston (USACE), posted September 28, 2026.
On GovTribe
See everything under PSC Z1KB
- 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