Construction of Tunnels and Subsurface Structures Government Contracts
PSC Y1LC Service code
Code facts
- Spend category
- Facilities & Construction Construction Related Services
- Part of
-
-
Y
- Y1
-
Y
- Contract obligations
- $59,804,810 In FY2025
PSC codes and definitions come from the GSA PSC Manual and contract spending from SAM.gov/FPDS.
Market summary
Top buying agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $80,097,286 | |
| 2 | Department of the Interior | $3,416,471 | |
| 3 | Department of Veterans Affairs | $261,100 | |
| 4 | Department of Agriculture | $22,000 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | The Dutra Group | $71,108,400 | |
| 2 | Pipkin Inc. | $3,830,735 | |
| 3 | Ahtna-Forgen JV, LLC | $3,130,430 | |
| 4 | Camenzind Dutra JV LLC | $2,636,320 | |
| 5 | ED Rike Plumbing, Inc. | $1,528,358 | |
| 6 | Nordic Industries Inc. | $736,587 | |
| 7 | Teichert-Odin, A Joint Venture | $695,528 | |
| 8 | Maloney-Odin A Joint Venture | $647,109 | |
| 9 | Odin Environmental Solutions, LLC | $469,715 | |
| 10 | Ahtna-Great Lakes E&I JV | $320,416 |
Open contract opportunities
Recent contract awards
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $83,796,857 |
| FY2025 | $59,804,810 |
| FY2024 | $96,435,304 |
| FY2023 | $197,559,321 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 237990 Other Heavy and Civil Engineering Construction | $83,291,890 | |
| 2 | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $1,541,446 | |
| 3 | 238990 All Other Specialty Trade Contractors | $268,031 | |
| 4 | 237310 Highway, Street, and Bridge Construction | $12,155 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | California | $76,136,578 | |
| 2 | Washington | $3,830,735 | |
| 3 | Ohio | $1,541,446 | |
| 4 | Georgia | $22,000 | |
| 5 | Michigan | $12,155 |
Quick answers
What is PSC Y1LC?
PSC Y1LC is Construction of Tunnels and Subsurface Structures, a service code in PSC Y, Construction of Structures/
How many government contracts for construction of tunnels and subsurface structures are there?
3 contract opportunities under PSC Y1LC are open now, and 11 notices were posted in the last 90 days. Federal agencies awarded 5 contracts under PSC Y1LC in the last 12 months, obligating $80,104,180.
How much do federal agencies spend under PSC Y1LC?
Federal contracts under PSC Y1LC obligated $59,804,810 in fiscal year 2025 and $437,596,293 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Y1LC?
The contractors with the most obligated under PSC Y1LC in fiscal years 2026 and 2027 are The Dutra Group ($71,108,400); Pipkin Inc. ($3,830,735); and Ahtna-Forgen JV, LLC ($3,130,430).
Which agencies buy the most under PSC Y1LC?
The agencies that obligated the most under PSC Y1LC in fiscal years 2026 and 2027 are Department of the Army ($80,097,286), Department of the Interior ($3,416,471) and Department of Veterans Affairs ($261,100).
Which NAICS codes are used with PSC Y1LC?
The NAICS codes with the most obligated under PSC Y1LC in fiscal years 2026 and 2027 are 237990 Other Heavy and Civil Engineering Construction; 238220 Plumbing, Heating, and Air-Conditioning Contractors; and 238990 All Other Specialty Trade Contractors.
Where is the work under PSC Y1LC performed?
By place of performance, the states with the most contract obligations under PSC Y1LC over the last 12 months are California ($76,136,578), Washington ($3,830,735) and Ohio ($1,541,446).
What is the latest open contract opportunity under PSC Y1LC?
The latest open contract opportunity under PSC Y1LC is USACE SPK DBB Construction - LAR C3B North - Sacramento, CA, solicitation from ENDIST Sacramento (USACE), posted November 10, 2026.
On GovTribe
See everything under PSC Y1LC
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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