PSC codes › Z1KF
PSC Z1KF — Maintenance of Dredging Facilities: federal contracts
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- Tybee Island Shoreline Protection Project
- USACE National Enterprise Dredging Center Scope Dredge to Budget Contract
- USACE EDDC Scope Dredge to Budget RFP DRAFT
- Pre Solicitation Notice: FY27 Maintenance Dredging Yokohama North Dock
- Tampa Harbor Improvements Industry Day
- Sources Sought for FY26 Atlantic Intracoastal Waterway Maintenance Dredging ????????? Select Sites
- PASS-A-GRILLE-PASS, MAINTENANCE DREDGING, PINELLAS COUNTY, FLORIDA
- Norfolk Harbor Inner Channel to Newport News Maintenance Dredging located in Hampton Roads, Virginia
- FY26 Harlingen Placement Area (PA)13 and 10 Improvements
- Jacksonville Harbor Maintenance Dredging
- RESERVE BASIN MAINTENANCE DREDGING CONTRACT FOR SITES AT THE PHILDELPHIA NAVY YARD IN THE PUBLIC WORKS DEPARTMENT PENNSYLVANIA AREA OF RESPONSIBILIY
- Calcasieu Bar River Channel, Pascagoula Harbor, and Panama City Harbor Maintenance Dredging
- Barataria Bay Waterway, Maintenance Dredging (Non-Continuous) Bayou Rigaud, Jefferson Parish, Louisiana (ED-25-008)
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What PSC Z1KF covers
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: Facilities & Construction › Facility Related Services.
Who is winning new PSC Z1KF work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| GREAT LAKES DREDGE & DOCK CO, LLC | $585.8M | 19 |
| WEEKS MARINE, INC. | $168.0M | 6 |
| CURTIN MARITIME CORP | $135.4M | 10 |
| COTTRELL CONTRACTING CORPORATION | $112.1M | 13 |
| NORFOLK DREDGING COMPANY | $110.1M | 5 |
| CASHMAN DREDGING & MARINE CONTRACTING CO LLC | $91.6M | 5 |
| DONJON MARINE CO., LLC | $90.3M | 2 |
| MANSON CONSTRUCTION CO | $70.4M | 4 |
| MARINEX CONSTRUCTION INC | $68.9M | 3 |
| THE DUTRA GROUP | $41.3M | 4 |
How competitive is PSC Z1KF?
- 100.0% of obligations on these awards were competed.
- 12.7% of competed awards that report offers drew a single offer (n=150).
- 23.1% went to small businesses.
- The five largest contractors hold 54.9% across 67 contractors.
NAICS codes used on PSC Z1KF awards
| NAICS | Industry | Share |
|---|---|---|
| 237990 | Other Heavy and Civil Engineering Construction | 99.8% |
| 541380 | Testing Laboratories and Services | 0.1% |
| 541330 | Engineering Services | 0.0% |
| 541620 | Environmental Consulting Services | 0.0% |
| 238990 | All Other Specialty Trade Contractors | 0.0% |
| 488330 | Navigational Services to Shipping | 0.0% |
Related PSC codes
Y1KF Construction of Dredging Facilities · Y1PZ Construction of Other Non-Building Facilities · Z1KB Maintenance of Canals · Y1QA Construction of Restoration of Real Property (Public or Private) · Y1KZ Construction of Other Conservation and Development Facilities · C219 Other Architect and Engineering Services · Z2PZ Repair or Alteration of Other Non-Building Facilities · Z2KF Repair or Alteration of Dredging Facilities
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