PSC Y1LB: Construction of Highways, Roads, Streets, Bridges, and Railways
Y1LB is the product and service code (PSC) federal agencies use for construction of highways, roads, streets, bridges, and railways, in the construction of buildings 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
- 39
- Spending, FY2026
- $6.3 billion
- Share to small businesses
- 30%
Open contracts with PSC Y1LB, due soonest
- CHOH 326202 Repair Historic Potomac River Dams 4 a
✦ The National Park Service (Denver Service Center) is doing market research, not asking for bids yet, for a design-build contract to repair two historic Potomac River dams (Dams 4…
Due in 4 daysOct 15, 2026
- ND OMAD 2025(1) Minuteman Missile Access
✦ The Federal Highway Administration's Central Federal Lands Division plans a small business set-aside road project in North Dakota (Minot area) to recondition about 50 miles of…
Due in 5 daysOct 16, 2026
- CO OMAD 300(71) Minuteman Missile Access
✦ The Federal Highway Administration (Central Federal Lands) plans to hire a small business to recondition up to 85.75 miles of gravel Minuteman Missile access roads and replace up…
Due in 5 daysOct 16, 2026
- Natchez Trace Parkway Project MS NP NATR 3F26
✦ The Federal Highway Administration (Eastern Federal Lands) is taking sealed bids to resurface about 12.7 miles of the Natchez Trace Parkway in Chickasaw County, Mississippi, for…
Due in 9 daysOct 20, 2026
- CO NP ROMO 407(1) Holzwarth Culvert
✦ The Federal Highway Administration (Central Federal Lands Division) wants a contractor to replace the failing six-barrel Holzwarth Culvert with a steel girder bridge in Rocky…
Due in 9 daysOct 20, 2026
- ID FLAP ADA 2019(1), Western Heritage Byway - Swan Falls Road
✦ The Federal Highway Administration's Western Federal Lands office wants a contractor to rebuild and rehabilitate Swan Falls Road (Western Heritage Byway), about 5 miles south of…
Due in 9 daysOct 20, 2026
Where Y1LB sits in the PSC Manual
- Category: Service
- Group Y: Construct of Structures/Facilities
- Group Y1: Construction of Buildings
- Code Y1LB: Construction of Highways, Roads, Streets, Bridges, and Railways
NAICS codes used with PSC Y1LB
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with Y1LB most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 236220 | Commercial and Institutional Building Construction | $5.1 billion |
| 237310 | Highway, Street, and Bridge Construction | $2.1 billion |
| 237990 | Other Heavy and Civil Engineering Construction | $391.3 million |
| 238990 | All Other Specialty Trade Contractors | $71.5 million |
| 238910 | Site Preparation Contractors | $2.3 million |
| 324121 | Asphalt Paving Mixture and Block Manufacturing | $1.7 million |
Who buys under PSC Y1LB
Agencies with the most contract dollars under Y1LB over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| U.S. Customs and Border Protection | $4.9 billion |
| Federal Highway Administration | $2.2 billion |
| Forest Service | $376.4 million |
| Department of the Navy | $280.1 million |
| National Park Service | $120.2 million |
| Department of the Air Force | $47.6 million |
| Federal Emergency Management Agency | $25.9 million |
| Department of Veterans Affairs | $18.7 million |
On open notices right now, the most Y1LB work comes from Department of Transportation, Department of the Interior and Dept of Defense.
Federal spending under PSC Y1LB by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $1.2 billion |
| FY2025 | $214.1 million |
| FY2026 | $6.3 billion |
| FY2027 (so far) | $94,899 |
Who wins PSC Y1LB contracts
| Company | Obligated, last 3 years |
|---|---|
| Barnard Construction Company, Incorporated | $2.8 billion |
| Fisher Sand & Gravel Co | $1.2 billion |
| Granite Construction Company | $754.1 million |
| Spencer Construction LLC | $433.3 million |
| Estes Bros. Const. Inc. | $121.4 million |
| RQ-Magann JV | $104.8 million |
| Amrize Southwest Inc | $96.4 million |
| Central Southern Construction Corp. | $92.5 million |
| Weeks-Cashman JV | $87.8 million |
| Kokosing Construction Company, Inc. | $87.2 million |
Related PSC codes
- Y111 Construction of Office Buildings
- Y112 Construct/Conf Space & Fac
- Y119 Construct/Other Admin & SVCS BLDGS
- Y121 Construct/Air Traffic Cont Towers
- Y122 Construct/Air Traffic Training Fac
- Y123 Construct/Radar & Navigational Fac
- Y124 Construction of Airport Runways
- Y125 Construction of Airport Terminals
- Y126 Construct/Missile System Facilities
- Y127 Construct/Elct & Comm System Fac
Frequently asked questions
What is PSC Y1LB?
Y1LB is the service code in the federal Product and Service Code (PSC) Manual for construction of highways, roads, streets, bridges, and railways, under Y (Construct of Structures/Facilities) and Y1 (Construction of Buildings). 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 Y1LB?
Most federal contract dollars under PSC Y1LB go with NAICS 236220 (Commercial and Institutional Building 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 Y1LB?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 39 open notices use PSC Y1LB right now. FedReady can match new ones to your business and email you, free.