NAICS 23799 - Other Heavy and Civil Engineering Construction
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Related NAICS Codes for NAICS 23799
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| NAICS Code | Industry Title |
|---|---|
| 237990 | Other Heavy and Civil Engineering Construction |
What is NAICS 23799
NAICS code 23799, Other Heavy and Civil Engineering Construction, encompasses specialized construction activities that do not fall under more specific heavy and civil engineering categories. This sector includes contractors who engage in diverse infrastructure projects such as water and sewer system installations, flood control structures, and other large-scale civil works. Businesses operating under this code often provide niche, complex construction services that are essential for maintaining and improving public infrastructure. Government agencies rely on these contractors to execute projects that require specialized expertise or fall outside conventional heavy construction classifications. These services are critical for supporting public safety, environmental protection, and community development initiatives.
Breakdown for NAICS 23799
- Covers specialized heavy and civil engineering projects not classified elsewhere.
- Includes infrastructure related to water, sewer, flood control, and environmental systems.
- Subject to specific size standards based on employee count or annual receipts.
- Encompasses both new construction and repair or maintenance of civil works.
- Supports critical public safety and environmental protection initiatives.
Included Activities for NAICS 23799
- Construction of water and wastewater treatment facilities.
- Installation and rehabilitation of sewer systems and pipelines.
- Building flood control structures such as levees and dams.
- Stormwater drainage system construction and maintenance.
- Environmental remediation and erosion control projects.
- Repair and upgrade of existing civil engineering infrastructure.
- Site preparation and earthmoving for specialized projects.
- Coordination with regulatory agencies for compliance and permitting.
Business Types for NAICS 23799
- Specialized heavy civil engineering construction contractors.
- Environmental and water resources engineering firms.
- Infrastructure rehabilitation and maintenance service providers.
- Small and disadvantaged business enterprises in construction.
- Construction management and consulting firms.
- Public works contractors serving government agencies.
Government Buyers for NAICS 23799
Federal, state, and local government agencies are primary buyers of services under NAICS 23799. Key agencies include the U.S. Army Corps of Engineers, Environmental Protection Agency, Department of Transportation, and local water and sewer authorities. These entities require contractors for specialized civil engineering projects like wastewater treatment plant construction, levee and dam repairs, and stormwater management systems. The government’s need for these services arises from regulatory mandates, infrastructure modernization efforts, and disaster mitigation programs, making reliable contractors essential partners in public sector development and resilience.
Contract Types & Procurement for NAICS 23799
Contracts in this sector are commonly awarded through competitive bidding processes including sealed bids and negotiated procurements. Contract types range from fixed-price to cost-plus arrangements, depending on project complexity and risk allocation. Task orders under indefinite delivery/indefinite quantity (IDIQ) contracts are also prevalent for ongoing maintenance and repair work. Typical contract values vary widely based on project scope, often ranging from hundreds of thousands to several million dollars. Government agencies increasingly use performance-based contracting to ensure project outcomes align with regulatory and environmental standards.
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