# NAICS 237310: Highway, Street, and Bridge Construction

The SBA size standard for NAICS 237310 is $45,000,000 in average annual receipts (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 237310 |
| Title | Highway, Street, and Bridge Construction |
| Level | 6 |
| Parent | 23731 |
| Size standard | $45,000,000 in average annual receipts |
| Footnote | - |

## Description

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).

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/237310/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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