NAICS Demand Lane

    Other Heavy and Civil Engineering Construction — Contract Opportunities

    10,521 total opportunities (10,521 active) tied to NAICS 23799 across federal, state, local, and forecast sources.
    NAICS 23799Federal + SLED10.5K total
    Total Opportunities
    10.5K
    Across all indexed sources
    Active Estimate
    10.5K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 23799.

    AI Summary

    The Naval Facilities Engineering Systems Command (NAVFAC) Marianas is seeking a sole-source contract modification for emergency repairs to the Glass Breakwater at Apra Harbor, Guam. This urgent work, valued at $30 million, addresses damage from Typhoon Sinlaku and includes critical stabilization services such as survey…

    AP

    Posted Jul 13, 2026JustificationNAICS 237990Sol: N40192-26-JARS-005
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    AI Summary

    This opportunity is for a multiple award construction contract for new construction, repair, and renovation of waterfront facilities at various government installations across several states. The contract will utilize a two-phase design-build selection procedure, with a total estimated value exceeding $750 million. Pro…

    CA

    Posted Jul 10, 2026Due Aug 11, 2026SolicitationNAICS 237990Sol: N6247326R0022
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    AI Summary

    The Department of Defense is soliciting proposals for the repair of the Stormwater Spill Gate 11 Structure at Tinker Air Force Base. Contractors must provide all necessary materials, labor, and equipment. A site visit is required for eligibility, and proposals are due by 20 July 2026. This opportunity is set aside for …

    OK

    Posted Jul 10, 2026Due Jul 20, 2026SolicitationNAICS 237990Women-Owned Small Business Sole SourceSol: FA813726R0032
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    AI Summary

    The opportunity involves maintenance dredging of approximately 4,287,000 cubic yards of material from the Charleston Lower Harbor, with an estimated value between $25 million and $40 million. Compliance with the Endangered Species Act and Marine Mammals Protection Act is required. The solicitation is posted with multip…

    SC

    Posted Jul 10, 2026Due Jul 14, 2026SolicitationNAICS 237990Sol: W912HP26BA005
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    AI Summary

    The Bureau of Reclamation is soliciting proposals for the Speelyi Beach Shoreline Protection project in Yakima, Washington. This opportunity includes amendments addressing contractor Q&A, updated specifications, and a revised bid due date. Interested bidders should prepare to incorporate dredging and water management p…

    ID

    Posted Jul 10, 2026Due Jul 22, 2026SolicitationNAICS 237990Indian Small Business Economic Enterprise (ISBEE) Set-Aside (specific to Department of Interior and Indian Health Services)Sol: 140R1026B0002
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    AI Summary

    This opportunity involves maintenance dredging of the Kings Bay Entrance Channel, including environmental monitoring and beach restoration activities. Bids are due by August 12, 2026, with a target price range of $20 million to $30 million. The project is unrestricted and requires completion within 185 days after the N…

    FL

    Posted Jul 10, 2026Due Aug 12, 2026SolicitationNAICS 237990Sol: W912EP26BA012
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    AI Summary

    The National Park Service is seeking sources for resilience improvements to the Santa Barbara Island Wharf. This opportunity involves construction services and aims to enhance infrastructure resilience. Interested parties should refer to the attached documents for detailed project information.

    CO

    Posted Jul 10, 2026Due Jul 24, 2026Sources SoughtNAICS 237990Sol: 140P2026R0096
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    AI Summary

    The Dashields Locks and Dam project involves upgrading the hydraulic system, including demolition and installation of new components. The work requires both construction and electrical installation, with a completion timeline of 730 days post-notice. This opportunity is a 100% small business set-aside, and the RFP will…

    PA

    Posted Jul 10, 2026Due Jul 28, 2026SolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: W911WN26RA012
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    AI Summary

    The U.S. Army Corps of Engineers is seeking local sources for maintenance dredging at Yokohama North Dock, Japan. The project involves hydraulic or mechanical dredging to ensure safe passage for watercraft. Interested bidders must possess a Japanese civil construction license and comply with local regulations. This opp…

    AP

    Posted Jul 10, 2026Due Nov 16, 2026PresolicitationNAICS 237990Sol: W912HV26Z0015PSN
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    AI Summary

    The Department of the Interior, Bureau of Reclamation, is soliciting proposals for the refurbishment of the cableway crane at Hoover Dam. This opportunity is classified under NAICS code 237990 and is focused on service-related work. Interested bidders should prepare to submit their proposals by the specified deadline.

    NV

    Posted Jul 9, 2026Due Aug 12, 2026SolicitationNAICS 237990Sol: 140R3026R0010
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    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    8,950
    sled
    1,353
    forecast
    218

    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 →

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