Industry: 1622—Bridge, Tunnel, and Elevated Highway Construction
General contractors primarily engaged in the construction of bridges; viaducts; elevated highways; and highway, pedestrian, and railway tunnels. General contractors engaged in subway construction are classified in Industry 1629. Special trade contractors primarily engaged in guardrail construction or installation of highway signs is classified in Industry 1611.
| Abutment construction—general contractors | Trestle construction—general contractors |
| Bridge construction—general contractors | Tunnel construction—general contractors |
| Causeway construction on structural supports—general contractors | Underpass construction—general contractors |
| Highway construction, elevated—general contractors | Viaduct construction—general contractors |
| Overpass construction—general contractors | |
| Codes |
Titles | Total Marketable US Businesses |
| 16220000 | Bridge, tunnel, and elevated highway construction | 320 |
| 16229901 | Bridge construction | 724 |
| 16229902 | Highway construction, elevated | 84 |
| 16229903 | Tunnel construction | 101 |
| 16229904 | Viaduct construction | 4 |
