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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /23799

    NAICS Demand Lane

    Other Heavy and Civil Engineering Construction, Contract Opportunities

    11,324 total opportunities (11,324 active) tied to NAICS 23799 across federal, state, local, and forecast sources.
    NAICS 23799Federal + SLED11.3K total
    View NAICS definition →
    Total Opportunities
    11.3K
    Across all indexed sources
    Active Estimate
    11.3K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 23799.

    DEPT OF DEFENSE

    USACE SPK DBB CONSTRUCTION - LAR C3B NORTH - SACRAMENTO, CA

    Active

    AI Summary

    The US Army Corps of Engineers anticipates a design-bid-build construction project for erosion control and levee strengthening along the Lower American River in Sacramento, CA. The project is expected to span approximately 1.8 miles and be completed within 480 days. The solicitation will be set aside for small business…

    CA

    Posted Oct 2, 2026Due Oct 20, 2026PresolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: W9123827BA001
    View details→

    DEPT OF DEFENSE

    WATER RESOURCES BRACH QUARTERLY INDUSTRY DAY FOR COASTAL AND NAVIGATION PROJECTS

    Active

    AI Summary

    The U.S. Army Corps of Engineers will host a virtual Industry Day on October 19, 2026, for contractors interested in upcoming coastal and navigation projects in Florida. This event will provide an overview of planned projects, including scope and procurement methods, and will include a Q&A session. Note that this is a …

    FL

    Posted Oct 2, 2026Due Oct 19, 2026Special NoticeNAICS 237990Sol: W912EP27Z1CPD
    View details→

    DEPARTMENT OF THE INTERIOR

    Z--PROSSER CREEK DAM BASIN CLEANUP

    Active

    AI Summary

    The Department of the Interior, Bureau of Reclamation, is soliciting proposals for the Prosser Creek Dam Basin cleanup. The proposal due date has been extended to October 08, 2026, at 1:00 p.m. PST. This opportunity is categorized under environmental services and construction services.

    CA

    Posted Oct 2, 2026Due Oct 8, 2026SolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: 140R2026R0013
    View details→

    DEPARTMENT OF THE INTERIOR

    Z--FOLSOM WAREHOUSE BRIDGE CRANE REPLACEMENT

    Active

    AI Summary

    The Department of the Interior is seeking proposals for the design, construction, and installation of a 30-ton bridge crane to replace the existing crane at the Folsom Dam Warehouse. This solicitation includes clarifications and revisions to proposal instructions and wage determinations.

    CA

    Posted Oct 2, 2026Due Oct 9, 2026SolicitationNAICS 237990Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)Sol: 140R2026R0017
    View details→

    DEPT OF DEFENSE

    HALEIWA SMALL BOAT HARBOR MAINTENANCE DREDGING AND REVETTED MOLE REPAIR, HALEIWA, OAHU, HAWAII

    Active

    AI Summary

    The opportunity involves maintenance dredging and revetted mole repair at Haleiwa Small Boat Harbor in Oahu, Hawaii. This solicitation is issued by the Department of Defense, specifically the Department of the Army. Interested bidders should refer to the Procurement Integrated Enterprise Environment (PIEE) for the late…

    HI

    Posted Oct 2, 2026Due Oct 8, 2026SolicitationNAICS 237990Sol: W9128A26BA002
    View details→

    DEPT OF DEFENSE

    TWO PHASE DESIGN AND CONSTRUCTION OF THE PORT MONMOUTH PHASE II, CONTRACT 1 MITIGATION PROJECT

    Active

    AI Summary

    The Port Monmouth Phase II project involves the design and construction of flood risk management and shore protection components. This includes levees, floodwalls, pump stations, and wetland mitigation to reduce storm damage in New Jersey. The project is sponsored by the New Jersey Department of Environmental Protectio…

    NY

    Posted Oct 2, 2026Due Oct 19, 2026SolicitationNAICS 237990Sol: W912DS26RA032
    View details→

    DEPT OF DEFENSE

    TYBEE ISLAND SHORELINE PROTECTION PROJECT

    Active

    AI Summary

    The Tybee Island Shoreline Protection Project seeks contractors for dredging and beach nourishment services to restore coastal erosion and storm damage reduction. The project involves placing beach-quality sand along 14,900 feet of shoreline, with construction anticipated between late December 2026 and early April 2027…

    GA

    Posted Oct 2, 2026Due Oct 9, 2026Sources SoughtNAICS 237990Sol: W912HN27BA001
    View details→

    DEPARTMENT OF THE INTERIOR

    Z--BRADBURY DAM OUTLET VALVE REPLACEMENT

    Active

    AI Summary

    The Department of the Interior, Bureau of Reclamation, is soliciting proposals for the replacement of existing 30-inch outlet valves at Bradbury Dam. This project aims to enhance the operation and efficiency of water releases within the outlet works. Interested bidders should prepare to submit their proposals by the sp…

    CA

    Posted Oct 2, 2026Due Oct 6, 2026SolicitationNAICS 237990Sol: 140R2026R0018
    View details→

    DEPT OF DEFENSE

    MAINTENANCE DREDGING OF THE WINTER HARBOR FEDERAL NAVIGATION CHANNEL

    Active

    AI Summary

    The U.S. Army Corps of Engineers is seeking qualified firms for maintenance dredging of the Winter Harbor Federal Navigation Channel in Virginia. This sources sought notice is for information gathering only, with no solicitation available at this time. Interested firms should respond by October 22, 2026, with their cap…

    VA

    Posted Oct 2, 2026Due Oct 22, 2026Sources SoughtNAICS 237990Sol: W9123627BA005
    View details→

    Maintenance Dredging of the Isle au Haut Thoroughfare near Isle au Haut, Maine

    Active

    The Isle au Haut Thoroughfare Federal Navigation Project, located between Isle au Haut, Maine and Kimball Island, Maine on the outskirts of Penobscot Bay, about six miles southeast of Stonington and 25 miles east of Rockland. The Federal Navigation Project consists of a -6-foot Mean Lower Low Water (MLLW) deep by 75-fo…

    Posted Oct 2, 2026Due Nov 2, 2026SolicitationNAICS 237990Total Small Business Set-AsideSol: W912WJ27BA003
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    9,116
    sled
    2,074
    forecast
    134

    Related NAICS Codes

    • 23, Construction→
    • 236, Construction of Buildings→
    • 2361, Residential Building Construction→
    • 23611, Residential Building Construction→
    • 236115, New Single-Family Housing Construction (except For-Sale Builders) →
    • 236116, New Multifamily Housing Construction (except For-Sale Builders) →
    • 236117, New Housing For-Sale Builders →
    • 236118, Residential Remodelers →
    • 2362, Nonresidential Building Construction→
    • 23621, Industrial Building Construction→

    Explore

    • 23799 Definition→
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    About NAICS 23799

    This industry comprises establishments primarily engaged in heavy and civil engineering construction projects not classified under other specific categories. Activities include specialized construction such as marine, foundation, and pile driving work.

    Read the full NAICS definition →