This Subcontract opportunity from California was posted on October 9, 2025. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Channel Stabilization and Erosion Control

Closed

State & Local

Submission Closed11/20/2025, 04:00:00 PM PST

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 requesting quotes from certified and qualified DBE, SBA, and MBDA subcontractors and suppliers for the Recharge Master Plan Update at Montclair Basin in California. The scope of work involves improvements to Basin 2 and Basin 3, specifically requiring services for 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 solicitation is set aside for various small business categories, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. Interested parties must submit their responses by November 23, 2026. Primary coordination for this project 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 materials and services such as crushed stone, sand, gravel, concrete, reinforcing steel, and lumber, as well as specialized labor for clearing, grading, excavation, erosion control, and electrical signals. Additional requirements include professional services for environmental consulting, materials testing, and land surveying, along with a comprehensive need for various trucking and equipment rentals including bottom dump, flat bed, and water trucks. Interested parties must submit their responses by December 2, 2026. Primary inquiries and submissions should be directed to Andrew Burk at Granite Construction Company.

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, which pertains to other heavy and civil engineering construction. The notice was posted on November 13, 2026, and the deadline for responses is set for September 30, 2027. Interested parties can find further details and manage bids through the official WMATA supplier portal.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

Unity Park Field Renovation

Solicitation # 6580

The Town of Trumbull is seeking competitive proposals from qualified firms to provide General Contracting services for the Unity Park Field Renovation project. The scope of work includes the removal of existing fencing, gates, backstops, clay infields, and turf, as well as the installation of a synthetic turf system and athletic equipment, including a 20-foot foul pole, in-ground bases, and a home plate forming system. The project is expected to begin around December 2026 and must be completed within 100 consecutive calendar days after the Notice to Proceed. The contract will be awarded to the lowest responsible qualified bidder based on the total proposal price, though the Town may consider other bidders if they offer an earlier completion date or expedited delivery. Key contractual requirements include a bid security of 10 percent of the base proposal and the provision of performance and payment bonds each totaling 100 percent of the contract price. Contractors must adhere to State of Connecticut prevailing wage guidelines, unless the low bid is under 100,000 dollars, and must comply with OSHA standards and non-discrimination policies. Liquidated damages of 1,100 dollars per day will be applied for delays beyond the completion date. Proposals must be submitted in a sealed envelope to the Purchasing Agent by December 4, 2026, and must include a work schedule, a statement of qualifications, and a non-collusion form. All materials must meet specific ASTM standards for steel and PVC coatings to ensure durability and salt-spray resistance.

POSTED

DEADLINE

Carroll Creek Stream Restoration - CIP# 350007 (MWBE Goals)

Solicitation # IFB-27-11

The Carroll Creek Stream Restoration project (CIP# 350007), issued by the City of Frederick, Maryland under solicitation IFB-27-11, is a comprehensive construction effort located near Old Gas House Pike. The scope of work includes in-stream structure installation, floodplain bench grading, bank stabilization, and extensive planting. Key technical requirements involve the use of a Stream Restoration Plan, supplemental specifications, and the installation of reinforced soil lifts, riparian seed mixes, and various culverts. The project has an estimated value of approximately 6.88 million dollars and is expected to be completed within 180 days of the Notice to Proceed. Bidders must comply with strict submission requirements via the OpenGov Portal, including a detailed electronic project schedule and a list of three equivalent projects completed within the last four years. The contract emphasizes socioeconomic goals with participation targets of 31 percent for MBE, 11 percent for WBE, and 2 percent for SDVOSB. Financial security is mandated through a 5 percent bid bond, followed by 100 percent performance and materialmen bonds upon award, and a two-year maintenance bond upon final acceptance. Contract administration includes a two-year guarantee on all work and materials, with liquidated damages set at 500 dollars per calendar day for delays beyond the substantial completion date. The City of Frederick reserves the right to withhold payment if the required progress schedule is not submitted. Evaluation for award is based on the vendor's responsiveness to material requirements and their overall responsibility, including technical capability, integrity, and performance record.

POSTED

DEADLINE

Foundation & Site PreparationThis subcontract for Foundation and Site Preparation supports prime contractors on DLA Weapons Support ASC Industrial Plant Equipment projects. The scope of work involves comprehensive ground-level preparation, including the demolition of existing structures, excavation, debris removal, and the application of foundation fill. Additionally, the contractor is responsible for conducting geotechnical surveys to assess soil conditions and delivering certified machine foundations. All operations must strictly adhere to EM 385-1-1 and UFC 3-301-01 standards. The project falls under NAICS code 237990 and is managed by the Department of Defense. Interested parties must submit their responses by the deadline of December 14, 2026.

DLA WEAPONS SUPPORT ASC INDUSTRIAL PLANT EQUIPMENT

POSTED

DEADLINE

Excavation and Detention Pond Construction

LONE STAR COLLEGE SYSTEM

POSTED

DEADLINE

CSP-26-08-06 Kingwood Campus Flood Mitigation Project

Solicitation # CSP-26-08-06

The Lone Star College System has issued Competitive Sealed Proposal CSP-26-08-06 for the Kingwood Campus Flood Mitigation Project. The primary objective is to protect ten campus buildings previously damaged by Hurricane Harvey through the design, construction, and implementation of a new continuous structural flood wall, passive flood gates, and new site detention measures for stormwater management. The scope of work is strictly limited to the site and excludes modifications to existing buildings. Key deliverables include a functional flood mitigation system and updated site infrastructure, such as new sidewalks, lighting, and landscaping. All work must comply with approved plans, City of Houston standards, and TCEQ requirements. Proposals are due by January 22, 2027, and will be evaluated using a Best Value procurement method. Scoring is weighted heavily on price (50 points), followed by experience, reputation, and references (20 points), quality of goods and services (10 points), and safety records (5 points). Qualified offerors must provide a detailed cost proposal, a safety record for 2023-2026, and documentation of experience with FEMA-funded and public entity projects. Key personnel, such as the Project Manager or Superintendent, must possess at least 10 years of construction experience, including participation in two flood mitigation projects and one project exceeding 10 million dollars. The contract requires strict adherence to material standards, including ASTM specifications for thin brick, calcium silicate, and granite, with independent laboratory testing required for masonry units. Financial protections include performance bonds for bids over 100,000 dollars and payment bonds for bids over 25,000 dollars. Additionally, the agreement is subject to annual budget appropriations, and vendors must certify compliance with the Davis-Bacon Act, the Buy America Act, and various non-discrimination and critical infrastructure security regulations.

LONE STAR COLLEGE SYSTEM

POSTED

DEADLINE

Wastewater Pumping Station Installation

Department of Economic Development

POSTED

DEADLINE

Wastewater Collection System Installation

Department of Economic Development

POSTED

DEADLINE

(RFP) 27-27, Richard Craig Park Athletic Complex Renovation

Solicitation # 27-27

Henry County is soliciting proposals for a complete turnkey renovation of the Richard Craig Park Athletic Complex in McDonough, Georgia. The project focuses on modernizing baseball and softball facilities and converting four tennis courts into eight dedicated pickleball courts to enhance public access and support league play and community events. The work is structured in two phases to minimize operational disruptions: Phase One covers the renovation of Fields 1 through 5, while Phase Two includes Fields 6 through 8, the Sunshine League therapeutic field, the concession building, and batting cage improvements. Key technical deliverables include laser grading, drainage improvements, irrigation system replacement, and the installation of certified 419 Bermuda sod and new athletic infield mix. Qualified contractors must hold a valid license from the State Licensing Board for Residential and General Contractors and provide a minimum one-year warranty on all labor and materials. Proposals are due by 3:00 PM on December 17, 2026, and must be submitted via the county's eProcurement portal or delivered in person to the Purchasing Department. Submissions must include a base bid lump sum, a detailed schedule of values, a bid bond of at least 5 percent, and a completed W9 form. The successful bidder will be required to provide 100 percent Performance and Payment Bonds within 15 days of the award. Evaluation is based on a 100-point scoring system, with potential additional points for oral presentations, and all work must strictly adhere to ADA accessibility requirements and OSHA safety standards.

Henry County Board of Commissioners

POSTED

DEADLINE

General Building and CivilsThis subcontract agreement involves the provision of general building and civil engineering services for Northern Trains Limited. The scope of work focuses on supporting prime contractors through the execution of earthworks, concrete pouring, structural repairs, and general masonry to deliver completed civil works and structural building components. The contract is categorized under NAICS code 237990 and was posted on November 13, 2026. It establishes a framework for specialized construction activities essential to the infrastructure projects managed by Northern Trains Limited.

Northern Trains Limited

POSTED

about 10 hours ago

DEADLINE

N/A

AI Contract Overview

Napa County in California is seeking a subcontractor for a Channel Stabilization and Erosion Control project. The primary objective of this contract is to prevent erosion by stabilizing river and creek channels through the implementation of riprap, gabions, bioengineering, or concrete lining. The opportunity was posted on October 9, 2025, with a response deadline of November 21, 2025. This project falls under NAICS code 237990, and interested parties can find further details through the official Napa County bids portal.