This Subcontract opportunity from Colorado was posted on August 14, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Earthwork, Trenching, and Grading

Closed

State & Local

Submission Closed09/11/2026, 02:00:00 PM MDT

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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Federal

Multiple Award Construction Subcontract (same as above)The NASA Jet Propulsion Laboratory is forecasting a Multiple Award Construction Subcontract under a competitive set-aside specifically for small businesses. This opportunity falls under NAICS code 237990 and will be performed in Pasadena, California. The contract includes options for extension and has a designated period of performance ending on September 30, 2025. Interested parties can find further information through the official JPL small business opportunities portal.

NASA Jet Propulsion Laboratory

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DEADLINE

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 for 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 firms. 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 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 and signal installation. Additional requirements include professional services for environmental consulting, materials testing, and land surveying, along with a comprehensive need for various trucking and hauling services. Interested parties must submit their responses by December 2, 2026. All inquiries and submissions should be directed to the primary point of contact, Andrew Burk, via the provided company email or phone number.

Granite Construction Company

POSTED

DEADLINE

ADVANCE NOTICE: Rail Modernization Program

Solicitation # WMATA-0000010871

The Washington Metropolitan Area Transit Authority is issuing 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, indicating a focus on significant infrastructure improvements for the rail system. The notice was posted on November 14, 2026, and the deadline for responses is set for September 30, 2027. Interested parties can find further details and manage their bids through the official WMATA supplier portal.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

FY 2025 La Joya Parks & Recreational Improvements Project

Solicitation # 5025-40-0306-5000-0000-00-UCP-LS

The FY 2025 La Joya Parks and Recreational Improvements Project (Project No: TX 2621) is a unit price contract managed by the Hidalgo Urban County Program. The scope of work involves comprehensive construction and facility improvements, including the removal of existing chain link fencing and the installation of new black vinyl-coated fencing, double and single gates, parking lot striping, concrete curb ramps, and the installation of aluminum and project signage. All work must adhere to strict quality standards, including ASTM specifications for concrete, aggregates, and bituminous materials, and must comply with ADA standards and OSHA safety regulations for trenching and shoring. This project is funded by the U.S. Department of Housing and Urban Development Community Development Block Grant Program, requiring strict adherence to Texas State Prevailing Wage Requirements and Davis-Bacon Federal Wage Rates, including the submission of certified payroll. Contractors must maintain an active status on SAM.gov with a Unique Entity Identification (UEI) number and provide a Certificate Regarding Debarment. Additionally, the Build America Buy America Act applies to contracts exceeding $300,000, necessitating a preference for domestic materials. Bids must be submitted by December 4, 2026, consisting of one original typed document and two USBs in PDF, Word, or Excel format. Submissions must include a 5% bid security, a completed Certificate of Interested Parties Form 1295, and the Appendix N Build America Buy America Certification. Award decisions will be based on a combination of price, performance, and compliance, utilizing a preliminary evaluation and a Best and Final Offer process rather than a price-only selection.

POSTED

DEADLINE

Solicitation # 26-04-PW

Contract 26-04-PW is a solicitation issued by the Madera County Public Works Department for the construction of a leachate surface impoundment facility, the expansion of the Cell 3 liner, and various ancillary site improvements at the Fairmead Landfill in California. The project scope includes grading, placing aggregated base, installing an underground piping system with 12-inch dual wall HDPE pipe, and constructing rip rap swales. All work must adhere to the 2024 Caltrans Standard Specifications and Standard Plans, as well as the 2024 Edition of the Standard Specifications for Public Works Construction. The revised engineer's estimate for the project is $7,917,308.70, and the contract will be awarded to the responsive, responsible, and lowest price bidder. Bidders must have attended the mandatory pre-bid meeting on October 27, 2026, and must possess a Class A license or a combination of Class C licenses. Qualification requirements include the ability to self-perform at least 30% of the base bid and a proven track record of completing four projects of similar size and scope within the last seven years. Submissions must be made via BidExpress by November 18, 2026, and must include a bidder's security of at least 10% of the bid amount. Required documentation includes a subcontractor list, professional references, an Iran Contracting Act Certification, and various affidavits. The successful contractor will be required to provide performance and payment bonds totaling 100% of the contract price and comply with California prevailing wage laws and non-discrimination regulations.

County of Madera - Public Works Department

POSTED

DEADLINE

Open Cut Sewer RepairPM Construction & Rehab, LLC is seeking a subcontractor for an open cut sewer repair project focused on wastewater collection system rehabilitation in Mangham, Louisiana. The scope of work involves excavating soil to access damaged wastewater pipes, removing failed sections, installing new piping, and completing the process with backfilling and compaction. The selected contractor will be responsible for utilizing excavators, trench shoring, shields, and compaction equipment to ensure all repaired sewer line sections are restored to grade. This subcontract opportunity is open for responses until November 27, 2026. While open to qualified bidders, there is a preference for contractors with Disadvantaged Business Enterprise certification. The project falls under NAICS code 237990 and requires the delivery of fully restored infrastructure according to project specifications.

PM Construction & Rehab, LLC

POSTED

DEADLINE

Solicitation # CP25014

The Lake Charles Harbor and Terminal District is soliciting bids for Project CP25014, which involves heavy construction port improvements for the Industrial Park East Rail Extension and Trans-loading Yard in Calcasieu Parish, Louisiana. The scope of work includes the design and construction of rail infrastructure, specifically proposed tracks TRK A and TRK B, and the installation of precast concrete crossing panels to replace wood ties. Additional requirements include clearing and grubbing, excavation, culvert bedding, and the installation of barbed wire fencing and double swinging driveway gates. The engineer's estimate for the base bid is $5,856,000, and awards will be based on the lowest price derived from the summation of quantities and unit bid prices. Bids are due by November 19, 2026, and must be submitted using the Louisiana Uniform Public Work Bid forms. The successful contractor will be required to provide performance and payment bonds from an A-rated surety and adhere to strict quality assurance standards, including DOTD specifications for embankment density and moisture content. The contract is based on calendar days, with stipulated damages of $1,000 per day for failure to meet the completion deadline and an additional $1,000 per day for uncompleted punch list items after 45 days. Financial terms include a retainage of 5% for contracts exceeding $500,000. Compliance with the Clean Air Act and Federal Water Pollution Control Act is required for subcontracts exceeding $150,000 financed via FEMA.

POSTED

DEADLINE

Storm Drainage and Culvert ImprovementsThis subcontract focuses on storm drainage enhancements and culvert work for roadway projects within the City of Smyrna, Georgia. The selected contractor will work under prime contractors to deliver an improved storm drainage system and complete two specific culvert improvement projects. The opportunity is categorized under NAICS code 237990 and was posted on November 13, 2026. Interested parties must submit their responses by the deadline of March 5, 2027.

POSTED

DEADLINE

2026008-RFP3819 Riverwood Park

Solicitation # 2026008-RFP3819

The Columbia County Board of Commissioners is soliciting proposals for the construction of Riverwood Park under solicitation number 2026008-RFP3819. The General Contractor is responsible for providing all labor, equipment, materials, and supervision to complete the project according to drawings and specifications provided by the architect, Goodwyn Mills Cawood. The comprehensive scope of work includes site demolition, clearing, and grading, as well as the installation of play structure assemblies, poured-in-place safety surfacing, splash pad equipment and plumbing, mountain biking trails, concrete paths, parking lots, site lighting, site furnishings, and landscaping improvements. To be eligible for award, bidders must possess a State of Georgia General Contractor's License and a Columbia County business license. Proposals must be submitted electronically via the Bonfire portal by December 10, 2026, and must include a bid bond drawn in favor of Columbia County, Georgia, for at least five percent of the lump sum bid. Letters of credit are not accepted. The successful contractor will be required to provide Performance and Payment Bonds within ten days of the contract award. All inquiries and proposals are managed through the Columbia County Procurement Department, with Glenn O'Steen serving as the Procurement Manager.

Columbia County Board of Commissioners

POSTED

DEADLINE

Site Utility InstallationThis subcontract for Site Utility Installation involves the installation of underground water, sanitary sewer, and storm drainage systems for prime contractors working on Richmond County Board of Education projects in Georgia. The scope of work includes trenching, pipe laying, manhole installation, and connecting to municipal mains utilizing concrete manholes, bedding sand, and PVC or ductile iron piping to deliver a fully functional utility network. Interested parties must possess a valid Plumbing/Utility contractor license to be eligible. The solicitation was posted on November 13, 2026, with a response deadline of December 10, 2026. This project falls under NAICS code 237990.

Richmond County Board of Education

POSTED

DEADLINE

MacKenzie Park Workout Stations Phase 2E

Solicitation # 262761

The Borough of West Conshohocken is soliciting sealed bids for the MacKenzie Park Workout Stations Phase 2E project, which involves the installation of workout equipment at six locations along the existing walking trail in MacKenzie Park. The scope of work includes providing all necessary labor, materials, tools, and equipment, as well as the installation of ADA handicap ramps and a project sign at the park entrance. The project must be completed within 90 consecutive calendar days from the commencement date, with liquidated damages of $500 per calendar day for delays. All work must comply with PA Prevailing Wage requirements, OSHA safety standards, and specific engineering specifications, including a minimum 28-day concrete compressive strength of 3,750 psi. Bids will be awarded to the lowest responsible bidder and must be submitted via the PennBid portal by 11:00 A.M. on December 4, 2026. Proposals must include a bid bond of at least 10 percent and a qualifications statement detailing similar work performed within the last five years. Successful bidders are required to provide Performance and Labor and Material Bonds for 100 percent of the contract amount, a Maintenance Bond for 25 percent, and a Certificate of Insurance. Additionally, contractors must sign a Nondiscrimination and Sexual Harassment Clause and provide a detailed project schedule for approval prior to the start of construction.

Montgomery County

POSTED

1 day ago

DEADLINE

in 19 days

AI Contract Overview

This subcontract for Earthwork, Trenching, and Grading, managed by the Capital Programs agency in Colorado, involves providing comprehensive site preparation services for RTD facility projects. The scope of work includes excavation, filling, backfilling, compaction, and the hauling of soil materials. Specifically, the contractor is responsible for unclassified excavation of bedrock, boulders, and concrete or asphalt debris, as well as trenching and shaping surfaces under pavement to a precision of 0.02 feet of subgrade elevation. Using excavators, compactors, and grading equipment, the contractor will deliver a graded and compacted subgrade prepared for subsequent pavement or landscaping. The solicitation was posted on August 14, 2026, with a response deadline of September 11, 2026. This project falls under NAICS code 237990.

General Info

Colorado subcontract for RTD facility site preparation, excavation, trenching, and grading services.

Agency

Colorado → Capital Programs

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

CO, USA

Set-Aside

NONE

Documents

This scope was carved out of IFB 326DH015.

The full solicitation package (8 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Ridge Gate and Skyridge Park-n-Ride Erosion Control and Seeding

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

PostedAug 14

subcontract

Response DeadlineSep 11

Deadline has passed

Submission Closed

09/11/2026, 02:00:00 PM MDT

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Organization & Contact Information

AgencyColorado → Capital Programs

ContactsNo contacts available

OfficeN/A

Organization / AgencyColorado → Capital Programs

Office AddressN/A

ContactsNo contact information available

Full Description

Performs excavation, filling, backfilling, compaction, and hauling of soil materials for prime contractors on RTD facility projects. Executes unclassified excavation of bedrock, boulders, and concrete/asphalt debris, trenching, and shaping surfaces under pavement to within 0.02 ft of subgrade elevation. Utilizes excavators, compactors, and grading equipment. Delivers graded and compacted subgrade ready for pavement or landscaping.