North American Industry Classification System (NAICS) 2002

• 23 - Construction
• 237 - Heavy and Civil Engineering Construction
• 2373 - Highway, Street and Bridge Construction

23731 - 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. Specialized trade activities related to highway, street, and bridge construction (i.e., installing guardrails on highways) are included.