NAICS Code Guide
Highway, Street, and Bridge Construction
Construction · SBA Size Standard: $45M · ~18,000 registered entities
NAICS 237310 covers highway, street, and bridge contractors. Federal awards span FHWA transportation programs, military airfield construction, and overseas base infrastructure.
About NAICS 237310
NAICS 237310 covers contractors building and reconstructing highways, roads, streets, runways, parking lots, and bridges. Federal buyers include the Federal Highway Administration (FHWA) — which funds most highway work through state DOTs — as well as direct federal awards from Army Corps (overseas bases), Air Force (runway construction), and DOT. Overseas contingency construction (e.g., airfield rehabilitation in allied countries) is also awarded under this code.
237310
NAICS Code
$45M
SBA Size Standard
18,000
Registered Entities
Applicable Set-Aside Programs
Companies that qualify under NAICS 237310 and hold applicable SBA certifications can compete for set-aside contracts reserved for these programs. Certifications are linked to your CAGE code record in SAM.gov.
Learn about set-aside programs →Top Federal Buyers Under NAICS 237310
These agencies award the most contract dollars under this NAICS code. See full award data on FedAtlas.com.
Federal Highway Contracting: How It Works
Most federal highway funding flows through state DOTs via FHWA grants — so the actual construction contracts are awarded by state agencies, not the federal government directly. However, direct federal awards under NAICS 237310 include:
- Army Corps of Engineers road and airfield projects (domestic and overseas)
- Air Force Base runway and taxiway construction (AFCEC)
- National Park Service road projects
- Bureau of Indian Affairs road programs
Look Up a NAICS 237310 Vendor
Decode any CAGE code to verify a vendor's primary NAICS code, SAM status, and certifications.
Frequently Asked Questions
What is the size standard for NAICS 237310?
$45 million average annual receipts.
Contract Award Data
NAICS 237310 Awards on FedAtlas.com
See every federal contract won under NAICS 237310 — by company, agency, state, and year.
NAICS 237310 Quick Facts
- Code
- 237310
- Sector
- Construction
- SBA Size Standard
- $45M