NAICS 237310: Highway, Street, and Bridge Construction
This industry comprises establishments primarily engaged in the construction of highways (including elevated), streets, roads, airport runways, public sidewalks, or bridges. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialty trade contractors are included in this industry if they are engaged in activities primarily related to highway, street, and bridge construction (e.g., installing guardrails on highways). Illustrative Examples: Airport runway construction Highway line painting Causeway construction Painting traffic lanes or parking lot lines Culverts, highway, road, and street, construction Pothole filling, highway, road, street, or bridge Elevated highway construction Resurfacing, highway, road, street, or bridge Guardrail construction Sign erection, highway, road, street, or bridge Cross-References. Establishments primarily engaged in--Show more
NAICS 237310 – Highway, Street, and Bridge Construction encompasses the design, excavation, grading, paving, and structural installation of transportation infrastructure including arterial roads, freeways, rural highways, overpasses, underpasses, and bridge systems. This sector involves complex civil engineering practices such as earthwork, drainage system installation, concrete and asphalt paving, structural steel fabrication, and geotechnical stabilization, often requiring compliance with Federal Highway Administration standards and environmental regulations.
Industry Spending Overview
Federal obligations, top contractors and agencies, and related industry codes for NAICS 237310.
AI Industry Description
NAICS 237310 – Highway, Street, and Bridge Construction encompasses the design, excavation, grading, paving, and structural installation of transportation infrastructure including arterial roads, freeways, rural highways, overpasses, underpasses, and bridge systems. This sector involves complex civi...
NAICS 237310 – Highway, Street, and Bridge Construction encompasses the design, excavation, grading, paving, and structural installation of transportation infrastructure including arterial roads, freeways, rural highways, overpasses, underpasses, and bridge systems. This sector involves complex civil engineering practices such as earthwork, drainage system installation, concrete and asphalt paving, structural steel fabrication, and geotechnical stabilization, often requiring compliance with Federal Highway Administration standards and environmental regulations. In the federal contracting landscape, this NAICS code represents mission-critical infrastructure development supporting national defense mobility, veteran access, and public safety across federal lands and installations, making it a cornerstone of civil works procurement. Top contractors in this sector include ASPEN CONSTRUCTION COMPANY, C-A NATIVE CONSTRUCTORS INC, AAECON GENERAL CONTRACTING LLC, DAP CONSTRUCTION MANAGEMENT LLC, VSGI LLC, RDA CONTRACTING, INC., POSILLICO CIVIL INC, ENFIELD ENTERPRISES LLC, HERITAGE CONSTRUCTION LLC, SUNBELT CONSTRUCTION CO LLC, J WIPPLINGER COMPANIES LLC, and PVPII - FNSS ACQUISITION, INC. The competitive landscape features a mix of large prime contractors with nationwide capabilities and small businesses, including Native-owned and service-disabled veteran-owned firms, often competing for set-aside opportunities under the Small Business Administration’s 8(a) and HUBZone programs. Primary federal buyers include the Department of Defense, Department of Transportation, Department of Veterans Affairs, Department of the Interior, Department of Agriculture, and Department of Homeland Security. These agencies fund infrastructure projects to support military logistics, access to VA medical facilities, national park access roads, rural connectivity, and border security corridors, often through long-term, multi-year construction contracts. The market is characterized by high barriers to entry due to specialized equipment requirements, bonding capacity needs, and stringent safety and environmental compliance. Opportunities are concentrated in regions with aging infrastructure, military base expansions, and tribal land development. Contractors with proven experience in heavy highway construction, bridge rehabilitation, and federally funded project delivery methods such as Design-Build and Construction Manager at Risk are best positioned to compete.
Small Business Size Standard
The SBA threshold that decides who can bid NAICS 237310 work as a small business.
The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.
13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.
Top Contractors
Companies with the highest total award value under NAICS 237310, ranked by dollars won.
| Company | Total Awards | Contracts |
|---|---|---|
| KIEWIT INFRASTRUCTURE SOUTH CO | $296.6M | 2 |
| ESTES BROS. CONST. INC. | $151.0M | 10 |
| BLUEGRASS CONTRACTING CORP | $127.3M | 8 |
| ECLIPSE COMPANIES, LLC | $119.1M | 10 |
| AMRIZE SOUTHWEST INC | $96.4M | 2 |
| BRYANT'S LAND AND DEVELOPMENT INDUSTRIES, INC. | $80.8M | 6 |
| BFBC LLC | $78.9M | 1 |
| CONQUEST USA INC | $66.6M | 27 |
| ASPEN CONSTRUCTION COMPANY | $66.3M | 7 |
| TERRA SITE CONSTRUCTORS LLC | $65.3M | 7 |
Top Agencies
Federal agencies directing the most contract spending toward NAICS 237310.
Competition
How many companies historically bid on federal awards in NAICS 237310, from bidder counts reported on USAspending.
Median 3-5 bidders per reported award. · 65,327 reported awards
Median Bidders
3
Per reported award, all-time
Single-Bid Awards
31%
Share of reported awards with one bidder
10+ Bidder Awards
6%
Share of reported awards with 10+ bidders
Reported Awards
65,327
87% of 75,143 total awards
Share of reported awards in each bidder-count bracket per federal fiscal year.
How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.
| Industry Family | Competition | Median Bidders | Single-Bid | Bidder Mix | Reported Awards |
|---|---|---|---|---|---|
237310This Code Highway, Street, and Bridge Construction | Moderate Competition | 3 | 31% | 65,32787% of 75,143 | |
23731NAICS Industry | Moderate Competition | 3 | 31% | 65,32787% of 75,143 | |
2373Industry Group Highway, Street, and Bridge Construction | Moderate Competition | 3 | 31% | 65,32787% of 75,143 | |
237Subsector | Fewer Bidders | 2 | 35% | 162,38989% of 181,740 | |
23Sector Construction | Fewer Bidders | 2 | 40% | 1,132,66189% of 1,275,170 |
Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.
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