Other Heavy & Civil Engineering Construction
Key Figures
Figures are published for NAICS 23799 directly.
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Official definition
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.
Source: US Census Bureau, 2017 NAICS Definitions. Public domain. Census publishes this definition under NAICS 237990, the only detailed industry in this group.
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
- Park ground and recreational open space improvement construction
- Flood control project construction
- Railroad construction
- Golf course construction
- Subway construction
- Horizontal drilling (e.g., cable, pipeline, sewer installation)
- Trenching, underwater
- Hydroelectric generating station construction
- Tunnel construction
Which code does this activity belong in?
Other Heavy and Civil Engineering Construction covers heavy and civil engineering construction projects involving water resources, marine facilities, and open space improvements, along with related specialty trade work. It excludes highway, street, and bridge construction, which belong to Highway, Street, and Bridge Construction, as well as utility distribution line construction and integral utility structures like power plants and refineries, which are classified in Utility System Construction. The distinction rests on whether the project serves a general public purpose (such as dams, docks, and parks) or constitutes part of a utility delivery system.
Written for NAICS 237990, the only detailed industry in this group.
Where this sits
Related guides
Verified construction industry trends from federal data. 8.3M+ workers (BLS, 2024). Employment, material costs, technology, and market outlook for US
Average construction worker wage data from federal sources. $28.06/hr median (BLS OES, 2024). Wage trends, regional pay data, and trade specialty breakdowns.