This Subcontract opportunity from Department Of Defense was posted on September 18, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Civil Infrastructure & Site Adaptation

Closed

Federal

Submission Closed10/09/2026, 05:00:00 PM EDT

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

Active Opportunities Like This One

NAICS: 237990

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Request for Quote for The Recharge Master Plan Update at Montclair Basin

Solicitation # request-quote-recharge-master-plan-update-montclair-basin

Bosco Constructors, Inc. is soliciting quotes for the Recharge Master Plan Update at Montclair Basin located in California. The project focuses on improvements to Basin 2 and Basin 3, requiring specialized services including mobilization, water control, bypass and dewatering, the installation of inlet and outlet structures, diversion piping, valves, fittings, riprap, grading, backfill, restoration, and general cleanup. This opportunity is specifically set aside for certified and qualified small businesses, including DBE, SBA, and MBDA subcontractors and suppliers, with eligibility extending to VOSB, SDVOSB, WOSB, and HUBZone certified entities. Interested parties must submit their responses by November 23, 2026. Primary coordination for this solicitation is handled by Rafael Fonseca Jr.

Bosco Constructors, Inc.

POSTED

DEADLINE

Imperial Irrigation District – East Highline Reservoir

Solicitation # imperial-irrigation-district-east-highline-reservoir

Granite Construction Company is seeking quotes for the Imperial Irrigation District East Highline Reservoir project located in California. This solicitation is specifically open to qualified socioeconomic firms, including certified Small Business, Women-Owned Small Business, Minority Business, and Disadvantaged Business Enterprises. The scope of work is extensive, covering a wide array of material supplies such as concrete, cement, reinforcing bar, lumber, and fencing, as well as specialized services including clearing and grubbing, roadway and structure excavation, grading, erosion control, and soil stabilization. Additional requirements include professional services for land surveying, environmental consulting, materials testing, and SWPPP planning. The project also necessitates significant hauling and equipment support, requesting quotes for various dump trucks, water trucks, flatbeds, and street sweeping services. Interested parties must submit their responses by December 2, 2026. Primary inquiries and submissions should be directed to Andrew Burk via the provided contact information.

Granite Construction Company

POSTED

DEADLINE

ADVANCE NOTICE: Rail Modernization Program

Solicitation # WMATA-0000010871

The Washington Metropolitan Area Transit Authority has issued an advance notice for the Rail Modernization Program under solicitation number WMATA-0000010871. This solicitation is categorized under NAICS code 237990, focusing on specialized trade contractors for the modernization of rail infrastructure. Interested parties must submit their responses by the deadline of September 30, 2027. Further details and bidding processes are managed through the official WMATA supplier portal.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

This project involves comprehensive park improvements and stream corridor restorations at Ryerson Station State Park in Richhill Township, Greene County, Pennsylvania. The scope of work includes the construction of an access road, a new bridge over an old lakebed, a loop trail, parking facilities, pavilions, a play area, and a comfort station. Additionally, the project entails the installation of a pedestrian bridge, paddle craft launches, fishing docks, and necessary utility updates and extensions. The stream restoration component focuses on floodplain excavation, the construction of a main channel and kayak trail, bank armoring, the installation of habitat pools, and pond construction. With an engineer's estimate exceeding 1 million dollars, the solicitation sets specific participation goals of 17 percent for Small Diverse Businesses and 3 percent for Veteran Business Enterprises. This solicitation is issued by the Commonwealth of Pennsylvania Department of Conservation and Natural Resources.

Commonwealth of Pennsylvania - Department of Conservation and Natural Resources

POSTED

DEADLINE

IFB No 134548 Billeting Retaining Walls, Drainage and Soil Stabilization

Solicitation # 134548

The California Military Department is soliciting bids for IFB No. 134548 to install a temporary K-rail retaining wall, drainage, and soil stabilization system at Camp San Luis Obispo. The scope of work includes the installation of 480 total feet of retaining walls using 24 precast concrete units, the installation of six grated inlets and six 6-inch-diameter solid outlet pipe routes, and the application of soil stabilizer to create hardened sections between buildings and walls. The project requires a prime contractor holding a California CSLB Class A General Engineering or Class C-12 Earthwork and Paving license. All work must adhere to California public works labor requirements, San Luis Obispo County prevailing wages, and Cal OSHA safety standards. Bidders must attend a mandatory pre-bid job walk on November 17, 2026, and submit all questions by November 20, 2026. Bids are due by November 30, 2026, at 2:00 PM, with the bid opening following at 2:15 PM. The contract will be awarded to the lowest responsive and responsible bidder, with a 5% preference for certified Small Business or Microbusiness enterprises and a 5% goal for Disabled Veteran Business Enterprise participation. Required documentation includes a bid bond, a completed rate sheet, and various certifications including non-collusion and civil rights compliance. Performance and payment bonds are required if the contract exceeds specific monetary thresholds.

California Military Department

POSTED

DEADLINE

Saint Louis County in Minnesota is soliciting bids for contract MP 0000-816395R, which encompasses a wide range of infrastructure and site development work. The scope of the project includes grading, storm sewer installation, electrical work, gate installation, concrete placement, bituminous surfacing, and pavement markings. This solicitation falls under NAICS code 237990 and is being managed by a state and local government entity. Interested parties must submit their responses by the deadline of December 3, 2026, at 4:00 PM. The solicitation was officially posted on November 10, 2026, and all performance of the work will take place within the state of Minnesota. Detailed information and submission guidelines can be accessed through the Bid Express portal.

POSTED

DEADLINE

RFB No. 27-0017 Carver Lake Park - Phase 1

Solicitation # 27-0017

The Columbus Consolidated Government is soliciting bids for the Carver Lake Park Phase 1 project in Columbus, Georgia. The scope of work involves comprehensive site improvements, including demolition, clearing, grubbing, earthwork, and grading. Key deliverables include the construction of access drives, parking areas with permeable pavers, concrete sidewalks, curb and gutter, and a 10-foot-wide multi-use trail. The project also encompasses the development of playground and pavilion areas, improvements to the existing splash pad, fencing, site signage, landscaping, and associated storm drainage and utility improvements. The contract will be awarded to the responsive and responsible bidder submitting the lowest base bid. Qualified bidders must be licensed contractors in the State of Georgia, maintain a permanent place of business, and demonstrate sufficient financial resources and construction experience. The project requires substantial completion within 550 consecutive calendar days, with final payment readiness by 580 days. Successful bidders must provide performance and payment bonds totaling 100 percent of the contract amount. The project mandates strict adherence to various federal and state regulations, including the Davis-Bacon Act, the Copeland Act, and the Anti-Kickback Act, while emphasizing a preference for qualified local labor and businesses.

Columbus Consolidated Government

POSTED

DEADLINE

Cheshire Park Adaptive Turf Field

Solicitation # 2627-03

The Town of Cheshire is soliciting competitive bids for the Cheshire Park Adaptive Turf Field project (ITB #2627-03) in Connecticut. This project utilizes the AIA Document A101-2017 Standard Agreement and requires a lump sum base bid, with optional alternates for field lighting, a scoreboard, dugout shelters, a batting cage, and a turf groomer. Sealed bids must be submitted in opaque envelopes—including one original, one copy, and one electronic copy on a USB drive—to the Department of Public Works and Engineering by 11:00 AM on December 1, 2026. Bids must be signed by a principal officer or owner and include a bid bond or certified check for 5% of the bid amount for contracts exceeding $50,000. The scope of work involves comprehensive site development, including grading, utilities, and sediment and erosion controls, supported by geotechnical and topsoil analysis. Technical requirements include a 25-year warranty on light levels and strict adherence to IESNA RP-6-22 for illumination measurements. Contractors must comply with prevailing wage laws, the Americans with Disabilities Act, and state set-aside requirements for minority and women-owned businesses. Quality control is rigorous, requiring specific handling and storage of coated reinforcing steel and mandatory field density testing. Project administration is overseen by the Town Engineer and the Director of Public Works, with payments processed using EJCDC Form No. C-620.

POSTED

DEADLINE

Site Work and UtilitiesThis subcontract for Site Work and Utilities involves performing essential earthwork and utility installation for the Jackson County Water and Sewerage Authority in Georgia. The project focuses on a Water Reclamation Facility expansion to 4 MGD, requiring the subcontractor to execute excavation, grading, bedding, and the installation of both influent and effluent lines to deliver a fully graded site and completed underground utility infrastructure. The opportunity is categorized under NAICS code 237990 and was posted on November 10, 2026. Interested parties must submit their responses by the deadline of December 17, 2026, at 4:00 PM.

Jackson County Water and Sewerage Authority

POSTED

DEADLINE

Site Preparation & Civil EngineeringThis subcontract for Site Preparation and Civil Engineering supports facility projects for the South Western Ambulance Service NHS Foundation Trust. The scope of work involves performing essential earthworks and foundational civil engineering for prime contractors, specifically focusing on land clearing, excavation, grading, and the installation of drainage systems. The ultimate objective is to deliver a fully serviced and graded site with completed foundations prepared for vertical construction. The opportunity was posted on November 10, 2026, with a response deadline of December 7, 2026. Classified under NAICS code 237990, this contract is designated as a subcontract to ensure the necessary infrastructure is in place to support the trust's facility developments.

South Western Ambulance Service Nhs Foundation Trust

POSTED

DEADLINE

Solicitation # 26-0075-MA

The City of Clearwater is soliciting bids for the Seminole St. Boat Ramp Restoration project in Clearwater, Florida. The scope of work involves the comprehensive repair and reconstruction of a boat ramp facility consisting of four launching bays, totaling eight launching ramps. Key activities include the removal of existing degraded concrete structures, dredging and grading of native soils, placement of various gravel fill gradations, and the installation of new concrete ramps designed to support vessels exceeding 35 feet with combined weights over 10 tons. The project requires the contractor to provide a final design, all necessary labor, equipment, and environmental protections, including the use of turbidity curtains and adherence to NPDES management measures. Additionally, the contractor must manage the temporary relocation and preservation of existing floating docks, gangways, and fixtures to ensure they are reusable and ADA-compliant upon completion. The contract period is 180 calendar days from the Notice to Proceed. Bidders must choose between two construction sequencing options: Alternate A, which utilizes a three-phase approach to minimize public disruption, or Alternate B, which allows for a simultaneous closure of all ramps for a maximum of 45 days. The contract will be awarded to the lowest responsible and responsive bidder. Submission requirements include a bid security equal to 10 percent of the maximum bid price, a current Florida contractor license, and various certifications regarding scrutinized companies and anti-human trafficking laws. Technical specifications mandate a minimum concrete compressive strength of 4,000 PSI and a design load of 300 PSF. The estimated value associated with the marine construction category for this project is 750,000 dollars.

POSTED

DEADLINE

Stream Bed and Bank ArmoringThis subcontract for Stream Bed and Bank Armoring involves the installation of structural grade control and bank protection for prime contractors working on stream restoration projects within Henrico County, Virginia. The scope of work includes the installation of reinforced bed material, in-stream rock sills, imbricated rock wing walls, step pools, and logs or brush toe stabilization. To ensure structural stability, the contractor must utilize native logs and specific rock sizes to deliver completed armored banks and structural stream beds. The opportunity is categorized under NAICS code 237990 and was posted on November 10, 2026. Interested parties must submit their responses by the deadline of December 16, 2026.

Henrico County

POSTED

about 14 hours ago

DEADLINE

in about 1 month

AI Contract Overview

This subcontract for Civil Infrastructure and Site Adaptation supports AFLCMC/ESAK radar replacement projects by providing essential civil engineering and infrastructure modifications. The scope of work includes executing tower modifications, structural reinforcement to accommodate antenna weights, and comprehensive site preparation for fixed radar sites. To ensure successful delivery, the contractor must utilize structural analysis software and heavy lifting cranes while maintaining strict adherence to NFPA safety compliance. The project is managed under the Department of Defense, specifically the FA2330 Arspc Mgnt Systms Aflcmc/hba agency, with a NAICS code of 237990. The response deadline for this opportunity is October 9, 2026, and the primary objective is the delivery of fully modified radar towers and supporting site infrastructure.

General Info

Civil infrastructure and radar tower modifications for AFLCMC, deadline October 9, 2026.

Agency

Department Of Defense → FA2330 Arspc Mgnt Systms Aflcmc/hba

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

MA, 01731, USA

Set-Aside

NONE

Documents

This scope was carved out of FA2330-RFI-ARSR-R.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Enterprise Air Route Surveillance Radar Replacement Sources Sought Request of Information

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PhaseClosed

PostedSep 18

subcontract

Response DeadlineOct 9

Deadline has passed

Submission Closed

10/09/2026, 05:00:00 PM EDT

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Organization & Contact Information

AgencyDepartment Of Defense → FA2330 Arspc Mgnt Systms Aflcmc/hba

ContactsNo contacts available

OfficeN/A

Organization / AgencyDepartment Of Defense → FA2330 Arspc Mgnt Systms Aflcmc/hba

Office AddressN/A

ContactsNo contact information available

Full Description

Performs civil engineering and infrastructure modifications for prime contractors on AFLCMC/ESAK radar replacement projects. Executes tower modifications, structural reinforcement for antenna weights, and site preparation for fixed radar sites. Utilizes heavy lifting cranes and structural analysis software. Requires NFPA safety compliance. Delivers modified radar towers and site infrastructure.