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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /237990

    NAICS Demand Lane

    Other Heavy and Civil Engineering Construction, Contract Opportunities

    12,786 total opportunities (12,786 active) tied to NAICS 237990 across federal, state, local, and forecast sources.
    NAICS 237990Federal + SLED12.8K total
    View NAICS definition →
    Total Opportunities
    12.8K
    Across all indexed sources
    Active Estimate
    12.8K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 237990.

    DEPARTMENT OF STATE

    RFQ _ CONSTRUCTION SERVICES-TECHNICAL SECURITY UPGRADE (TSU)

    Active

    AI Summary

    The U.S. Embassy in Mbabane seeks quotations from qualified contractors for construction services supporting a Technical Security Upgrade at its Ezulwini embassy compound. The Department of State plans to award a firm-fixed-price contract to the lowest-priced technically acceptable responsible offeror and may award bas…

    DC

    Posted Nov 15, 2026Due Dec 18, 2026SolicitationNAICS 237990Sol: 19WZ6027Q0001
    View details→

    DEPT OF DEFENSE

    INDUSTRY DAY: CHIEF JOSEPH DAM MAIN UNIT XJ BREAKER DISCONNECTS MODERNIZATION

    Active

    AI Summary

    USACE Seattle District will hold an optional, preregistered industry day and site walk at Chief Joseph Dam on December 3, 2026, to gather nonbinding technical feedback and rough estimates for modernizing 15.5 kV main-unit breaker disconnects. Options range from refurbishing existing equipment to replacing the full swit…

    WA

    Posted Nov 13, 2026Due Nov 23, 2026Special NoticeNAICS 237990Sol: W912DW27R1CXH
    View details→

    DEPT OF DEFENSE

    CYPRESS CREEK, FAYETTE COUNTY, TENNESSEE

    Active

    AI Summary

    The Department of the Army issued a sources sought notice for work at Cypress Creek in Fayette County, Tennessee. The notice is for market research only and requests information from potential contractors; the scope and submission requirements are described in the attached notice. The listed NAICS code is 237990, Other…

    TN

    Posted Nov 13, 2026Due Dec 14, 2026Sources SoughtNAICS 237990Sol: W912EQ27S0002
    View details→

    DEPT OF DEFENSE

    NORTHWEST DIVISION POWERHOUSE LIFE SAFETY UPGRADES STAGE 1

    Active

    AI Summary

    USACE Walla Walla District plans a single-phase solicitation for up to four construction IDIQ MATOCs to upgrade life-safety systems at hydroelectric powerhouses across the Pacific Northwest. The shared contract capacity is anticipated to be $99 million, with task orders up to $25 million and a 36-month base plus two 24…

    WA

    Posted Nov 13, 2026Due Jan 8, 2027PresolicitationNAICS 237990Sol: W912EF27RA001
    View details→

    DEPARTMENT OF THE INTERIOR

    Y--FAIR ROUTE 3 - 96-INCH CMP REPLACEMENT PROJECT

    Active

    AI Summary

    The Bureau of Indian Affairs is soliciting work for the FAIR Route 3 project to replace a 96-inch corrugated metal pipe (CMP). The opportunity is set aside for Indian Small Business Economic Enterprises (ISBEE). The notice lists NAICS 237990; it does not provide further details on the project scope or acquisition proce…

    VA

    Posted Nov 13, 2026Due Nov 18, 2026Combined Synopsis/SolicitationNAICS 237990Indian Small Business Economic Enterprise (ISBEE) Set-Aside (specific to Department of Interior and Indian Health Services)Sol: 140A1627Q0105
    View details→

    DEPT OF DEFENSE

    RENOVATION OF THE FISH COLLECTION FACILITY ON THE TOUTLE RIVER

    Active

    AI Summary

    USACE Portland District is hosting a virtual industry event on December 16, 2026, and an optional site visit on December 15, for the planned renovation of the Fish Collection Facility on the Toutle River in Washington. The agency seeks industry input on construction risks, capabilities, and project strategies to inform…

    OR

    Posted Nov 13, 2026Due Dec 11, 2026Special NoticeNAICS 237990Sol: W9127N27BA013
    View details→

    DEPT OF DEFENSE

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

    Active

    AI Summary

    The U.S. Army Corps of Engineers Sacramento District is soliciting design-bid-build construction for Contract 3B South along the Lower American River in Sacramento, California. Work includes levee and riverbank regrading, soil-filled rock slope protection, riprap and river-toe protection, planting benches, instream woo…

    CA

    Posted Nov 13, 2026Due Dec 28, 2026SolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: W9123827BA002
    View details→

    DEPT OF DEFENSE

    ARCADIA WET WELL REHABILITATION_AMENDMENT 0004

    Active

    AI Summary

    The Department of the Army is soliciting work to rehabilitate the Arcadia wet well. Amendment 0004 updates the solicitation; the scope, requirements, and submission instructions are provided in the attachments. The opportunity is listed under NAICS 237990, and proposals are due November 20, 2026.

    OK

    Posted Nov 13, 2026Due Nov 20, 2026SolicitationNAICS 237990Sol: W912BV26RA033
    View details→

    DEPT OF DEFENSE

    JP MURTHA FLOAT MOORING BITTS RETROFIT

    Archived

    AI Summary

    USACE Pittsburgh District is soliciting an unrestricted, firm-fixed-price construction contract to retrofit floating mooring bitts at the John P. Murtha navigation lock. Work includes in-the-wet installation, contractor-fabricated steel frames, two dewatering boxes, concrete demolition and replacement, floating plant o…

    PA

    Posted Nov 13, 2026Due Nov 12, 2026SolicitationNAICS 237990Sol: W911WN27BA001
    View details→

    DEPT OF DEFENSE

    MAINTENANCE DREDGING OF THE ISLE AU HAUT THOROUGHFARE NEAR ISLE AU HAUT, MAINE

    Archived

    AI Summary

    The Army seeks mechanical maintenance dredging of approximately 3,355 cubic yards of compacted sand, gravel, cobbles, and isolated boulders from the 1,200-foot Isle au Haut Thoroughfare federal navigation channel in Maine. Material will be placed at the Flake Island Disposal Site. Work must occur within the anticipated…

    MA

    Posted Nov 13, 2026Due Nov 10, 2026SolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: W912WJ27BA003
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    9,182
    sled
    3,442
    forecast
    162

    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

    • 237990 Definition→
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    About NAICS 237990

    Other Heavy and Civil Engineering Construction

    Read the full NAICS definition →