NAICS Code 23799 — Other Heavy and Civil Engineering Construction

NAICS Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It contains 1 direct sub-code.

Code	23799
Title	Other Heavy and Civil Engineering Construction
Level	NAICS Industry (5-digit)
Edition	NAICS 2022 edition

Official definition (2022 NAICS)

This industry comprises establishments primarily engaged in heavy and civil engineering construction projects (excluding highway, street, bridge, and distribution line construction). 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 heavy and civil engineering construction projects (excluding highway, street, bridge, distribution line, oil and gas structure, and utilities building and structure construction). Construction projects involving water resources (e.g., dredging and land drainage), development of marine facilities, and projects involving open space improvement (e.g., parks and trails) are included in this industry.

Illustrative Examples:

Channel construction

Land drainage contractors

Dam construction

Marine construction

Dock construction

Microtunneling contractors

Dredging (e.g., canal, channel, ditch, waterway)

Nuclear waste disposal site construction

Earth retention system construction

Flood control project construction

Park ground and recreational open space improvement construction

Railroad construction

Golf course construction

Subway construction

Horizontal drilling (e.g., cable, pipeline, sewer installation)

Trenching, underwater

Hydroelectric generating station construction

Tunnel construction

This national industry shares the official Census description of 237990.

Where 23799 sits in the hierarchy

Level	Code	Title
Sector	23	Construction
Subsector	237	Heavy and Civil Engineering Construction
Industry Group	2379	Other Heavy and Civil Engineering Construction
NAICS Industry	23799	Other Heavy and Civil Engineering Construction

Codes under 23799

Code	Title
237990	Other Heavy and Civil Engineering Construction

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.