This Government Contract opportunity from California was posted on August 13, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Excavation and Site Preparation

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State & Local

Submission Closed08/21/2026, 10:00:59 PM UTC

Contract Overview

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

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NAICS: 237990

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Federal

Maintenance Dredging of the Isle au Haut Thoroughfare near Isle au Haut, Maine

Solicitation # W912WJ27BA003

W2SD Endist New England

POSTED

DEADLINE

Livorna Park Improvements Project

Solicitation # livorna-park-improvements-project

The Livorna Park Improvements Project is a comprehensive construction and renovation solicitation issued by Interstate Grading & Paving, Inc. for work located in California. The scope of work encompasses a wide array of site enhancements, including the renovation of concrete retaining walls, the installation of a playground, basketball and bocce courts, pedestrian walkways, and paving. Additional requirements include the construction of bathrooms, shade structures, a mist play area, and the installation of signage, benches, fencing, drinking fountains, and bike racks. The project also involves critical infrastructure work such as landscaping, irrigation, lighting, sewer, storm drain, plumbing, and electrical systems. This opportunity is designated as a set-aside for Small Businesses and Certified Disadvantaged Business Enterprises. The agency is specifically seeking participation from MBE, WBE, and LBE firms. Interested parties must submit their responses by the deadline of October 14, 2026. Primary coordination for this project is managed by Tina Marie, and the solicitation falls under NAICS code 237990.

Interstate Grading & Paving, Inc.

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Solicitation # city-lomita

The City of Lomita has issued solicitation W-375 for a project located in Lomita, Los Angeles, California. This opportunity is managed through Dominguez General Engineering, Inc., with Christian Rosales serving as the primary point of contact. The project falls under NAICS code 237990, focusing on specialized construction activities. The solicitation is open for responses starting October 5, 2026, with a final submission deadline of October 20, 2026. This contract is specifically set aside for small businesses, including SAM.gov designated Small Disadvantaged Businesses, SBA certified Women-Owned Small Businesses, and certified Disadvantaged or Minority Business Enterprises.

Dominguez General Engineering, Inc.

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, indicating a focus on large-scale infrastructure improvements for the rail system. The notice was posted on October 5, 2026, and establishes a response deadline of 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

Lytton First Nation – Berm Construction

Solicitation # 24-3028C

Solicitation 24-3028C is for the construction of the Nohomeen Recovery Berm located at the Stein Subdivision in Stryen, Lytton, British Columbia, for the Lytton First Nation. The project involves significant earthworks and the installation of a retaining wall using lock block facing units with a minimum 28-day concrete strength of 20 MPa and a specific batter of 5 degrees. Key technical requirements include the use of Type I Engineered Fill and retained backfill, both compacted to 100 percent of the maximum density per ASTM D698 standards. The scope also includes the installation of 150mm perforated PVC toe and heel drains, vertical cleanouts, rodent guards, and a clear crush chimney drain, with NILEX 4545 non-woven geotextile required at soil interfaces. The project mandates strict environmental and cultural compliance, requiring adherence to Thompson-NOXLAND Regional District Bylaws and Department of Fisheries and Oceans Land Development Guidelines. Contractors must install silt fencing prior to excavation and ensure all soil removal is conducted by a company employing a qualified cultural assist. Quality assurance is managed through the Geotechnical Engineer of Record, who must approve the subgrade and wall bearing surface before wall construction begins. Additionally, the contractor is responsible for verifying wall batter every block course and limiting the use of heavy equipment to a minimum distance of 0.75 meters from the wall face. Responses to this solicitation are due by October 22, 2026.

POSTED

DEADLINE

Construction Management (ETC Infrastructure)The Construction Management (ETC Infrastructure) subcontract focuses on the physical installation and construction of tolling and V2X hardware across Maryland Transportation Authority infrastructure projects. The selected provider will be responsible for coordinating field crews, managing construction schedules, and ensuring all hardware is installed according to strict technical specifications. Key deliverables include the submission of regular construction progress reports and the procurement of final installation sign-offs. This opportunity is categorized under NAICS code 237990 and is open for responses until December 7, 2026. Interested parties can find further details through the Maryland eMMA portal. The contract serves as a critical support function for prime contractors to ensure the successful deployment of electronic toll collection and vehicle-to-everything communication systems.

Maryland Transportation Authority

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Site Work & Utility ExcavationThis subcontract opportunity for Site Work and Utility Excavation involves performing excavation and backfilling services for utility lines on Chicago Public Schools facility projects. The selected contractor will work under prime contractors to excavate, backfill, and compact utilities in strict accordance with Sections 31 23 16 and 31 23 17, ensuring the delivery of properly prepared utility trenches and compacted backfill. The solicitation was posted on October 2, 2026, with a response deadline of October 20, 2026. Classified under NAICS code 237990, this project is managed by Chicago Public Schools in Illinois. Interested parties can find further details and submission guidelines through the official Bonfire hub portal.

Chicago Public Schools

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Site Preparation and ExcavationThis subcontract for Site Preparation and Excavation involves providing essential ground preparation, water management, and soil stabilization services for prime contractors working on British Columbia Hydro and Power Authority industrial facility projects. The scope of work includes executing excavation, dewatering, backfilling, and compaction to deliver a fully prepared and compacted subgrade site. The opportunity was posted on October 2, 2026, with a response deadline of October 27, 2026. Classified under NAICS code 237990, the contract is managed through the Province of British Columbia for projects associated with BC Hydro.

British Columbia Hydro and Power Authority

POSTED

DEADLINE

Contract 26-2 Furnace Creek Tank Painting

Solicitation # Contract 26-2

The Womelsdorf-Robesonia Joint Authority is soliciting sealed bids for Contract 26-2, which involves the interior and exterior painting of the Furnace Creek Tank, a 1,500,000-gallon welded steel ground water storage tank measuring 68 feet in diameter and 56 feet in height. The scope of work includes foundation joint and crack repair, incidental weld repairs, and coordination with the contractor awarded Contract 26-1 for metals rehabilitation. All work must be completed within 150 days from the Notice to Proceed and is subject to oversight by a retained third-party paint inspector. Bids must be submitted electronically via the PennBid program by 2:00 PM on October 21, 2026, and must include a bid bond or certified check for 10 percent of the bid price along with required financial statements, experience records, and various certifications. This project is funded through a Penn VEST Drinking Water State Revolving Fund loan and must comply with all associated loan requirements. It is strictly subject to the Build America, Buy America Act and the Federal Consolidated Appropriations Act, requiring that all iron, steel, manufactured products, and construction materials be produced in the United States. Additionally, the contract mandates adherence to Davis-Bacon Wage Rates and requires specific certifications regarding non-discrimination, equal employment opportunity, and contractor eligibility. The Authority reserves the right to award the contract to the bidder deemed to have provided the most advantageous bid.

POSTED

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The Cornerstone of Centerville South Phase I Public Improvements project is a civil and electrical construction solicitation issued by the City of Centerville, Ohio, with an engineer's estimate of $4,973,490.39. The scope of work includes the installation of conduits, structures, concrete drive aprons with curbs, seeding, mulching, and a design-build electrical component. The electrical portion requires the contractor to design and build the electrical service and associated conductors, including the installation of 22 decorative light fixtures, light pole bases, and specific connector kits. All work must adhere to the Ohio Building Code, N.E.C., N.F.P.A. Standard 70, and ODOT specifications, with a project completion date set for September 30, 2027. Bids are submitted as unit price proposals via Bid Express, with a final response deadline of October 13, 2026. The selection process evaluates the lowest and best bid based on project history, available resources, financial ability, and compliance with federal, state, and local laws, including Ohio Prevailing Wage and OSHA regulations. Required financial securities include a bid bond for the full amount of the bid or a 10 percent certified check, and a 100 percent performance bond upon award. Insurance requirements specify minimum coverage of $2,000,000 for Commercial General Liability, $1,000,000 for Auto, and $1,000,000 for Workers Compensation. Contract administration is managed by Oberer Construction Managers Ltd. on behalf of the City.

POSTED

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Smoky Lake County - Request for Proposal - GRAVEL PIT RECLAMATION

Solicitation # AB-2026-06075

Smoky Lake County is seeking proposals for the reclamation of a 16-hectare gravel pit located at NE 09-58-15 W4, with work scheduled for completion in Fall 2026. The scope of work includes equipment mobilization, stripping and burying deciduous tree regrowth under three metres, topsoil stripping, recontouring the area, and redistributing topsoil to a minimum depth of 15 centimeters. The final outcome must meet all requirements for provincial reclamation approval. Proposals must be submitted by September 15, 2026, and must include a company profile, a detailed technical approach with a timeline, a fee proposal, and a conflict of interest disclosure. Selected proponents are required to maintain both Commercial General Liability and Professional Liability insurance policies with minimum limits of two million dollars each. Evaluation will be based on experience and qualifications, pricing, and references, with the county reserving the right to select a vendor other than the lowest bidder.

POSTED

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Stabilization Pond and Aerobic Wetland ConstructionThis subcontract involves the construction and rehabilitation of stabilization ponds, sediment ponds, and aerobic wetlands for prime contractors working on Pennsylvania Department of Environmental Protection Bureau of Abandoned Mine Reclamation projects. The scope of work includes the installation of limestone beds, settling pond baffles, and impervious clay soil lining, as well as the cleaning and dewatering of existing ponds and overflow systems. All work must be performed in strict accordance with Technical Specifications No. 9-16 to ensure the successful delivery of treatment infrastructure. The opportunity is categorized under NAICS code 237990 and was posted on October 2, 2026, with a response deadline of October 8, 2026. This project is focused on environmental remediation within the state of Pennsylvania, requiring specialized expertise in water treatment infrastructure and mine reclamation standards.

Pennsylvania Department of Environmental Protection

POSTED

3 days ago

DEADLINE

in 3 days

AI Contract Overview

The Excavation and Site Preparation subcontract involves comprehensive earthmoving, grading, trenching, and site clearing activities utilizing heavy equipment. Managed by the California Administrative Services agency, the project is located in San Bernardino, zip code 92415-0061, and falls under NAICS code 237990. Interested parties must submit their responses by the deadline of August 21, 2026. It is critical that the selected contractor adheres to all applicable prevailing wage and apprenticeship rules throughout the duration of the performance.