FedReady

NAICS 237310: Highway, Street, and Bridge Construction

Highway, Street, and Bridge Construction is NAICS code 237310. A business is small under it with $45 million or less in average annual receipts. 59 federal contracts are open on SAM.gov under this code right now.

SBA size standard
$45 million or less in average annual receipts
Open contracts now
59
Federal spending, FY2026
$2.3 billion
Share won by small businesses
65%
Small businesses registered
6,219
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Open federal contracts for highway, street, and bridge construction

See all 59 open contracts under NAICS 237310 →

What NAICS 237310 covers

The Census Bureau's NAICS index lists these kinds of work under 237310:

  • Abutment construction
  • Airport runway construction
  • Airport runway line painting (e.g., striping)
  • Asphalt paving (i.e., highway, road, street, public sidewalk)
  • Bridge approach construction
  • Bridge construction
  • Bridge decking construction
  • Causeway construction
  • Concrete paving (i.e., highway, road, street, public sidewalk)
  • Construction management, highway, road, street and bridge
  • Culverts, highway, road and street, construction
  • Curbs and street gutters, highway, road and street, construction
  • Elevated highway construction
  • Grading, highway, road, street and airport runway

The index lists 38 entries for this code in all.

Read the full definition, including what's excluded, on census.gov.

SBA size standard for 237310

To count as a small business for a contract assigned NAICS 237310, your business must have $45 million or less in average annual receipts. Receipts are averaged over your last five completed fiscal years.

From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.

Who buys highway, street, and bridge construction

Agencies that awarded the most under NAICS 237310 over the last three fiscal years, per USAspending.gov:

AgencyObligated
Federal Highway Administration$2.2 billion
Department of the Navy$1.3 billion
Forest Service$972.2 million
Department of the Air Force$616.7 million
Department of the Army$387.6 million
National Park Service$294.3 million
Department of Veterans Affairs$60.4 million
Public Buildings Service$40.7 million

Open notices right now come from Department of Transportation (28), Dept of Defense (16), Department of the Interior (9), Department of Agriculture (4) and Department of Veterans Affairs (2).

Set-asides on open 237310 contracts

  • No set-aside (full and open): 38
  • Total small business set-aside: 20
  • Service-disabled veteran-owned set-aside: 1
  • Women-owned set-aside: 1

Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.

Your competition

6,219 businesses with active SAM.gov registrations are rated small under NAICS 237310, most of them in Texas (577), California (545), Florida (453), Washington (235) and Virginia (217). Look any of them up with the free CAGE code and UEI lookup.

Federal spending under 237310 by year

Fiscal yearContract obligations
FY2024$2.6 billion
FY2025$1.2 billion
FY2026$2.3 billion
FY2027 (so far)$39,611

Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.

Frequently asked questions

What is NAICS code 237310?

237310 is the 2022 NAICS code for Highway, Street, and Bridge Construction. The Census Bureau's index lists work such as abutment construction, airport runway construction, airport runway line painting (e.g., striping) under it. Federal contracting uses the 2022 codes.

What is the SBA size standard for NAICS 237310?

$45 million or less in average annual receipts. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.

Are there government contracts for highway, street, and bridge construction?

Yes. 59 federal contract opportunities under NAICS 237310 are open on SAM.gov right now. Agencies obligated about $2.3 billion under this code in fiscal year 2026, according to USAspending.gov.

How do I add NAICS code 237310 to my SAM.gov registration?

Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.

Keep going

FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.