This Government Contract opportunity from California was posted on April 2, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Earthwork and Site Stabilization

Closed

State & Local

Submission Closed06/11/2026, 07:00:00 PM UTC

Contract Overview

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

Active Opportunities Like This One

NAICS: 237990

New

SLED

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 infrastructure construction and modernization efforts for the rail system. Interested parties have until September 30, 2027, to submit their responses. Further details and bidding processes are managed through the official WMATA supplier portal.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

ALTA, RIVERVIEW, AND KINGS CANYON HIGH WELL DRILLING PHASE

Solicitation # alta-riverview-kings-canyon-high-well-drilling-phase

The Kings Canyon Unified School District is seeking bids for Project No. 1000316-001C, which involves the well drilling phase for Alta, Riverview, and Kings Canyon High. The project will be executed across multiple locations in California, specifically within Reedley, Parlier, Dinuba, and Fresno. This solicitation is categorized under NAICS code 237990 and is managed through Anthony J. Prieto Water Well Drilling, Inc. This opportunity is designated as a 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 the deadline of November 10, 2026. Primary coordination for the project is handled by Jennah Castagna.

Anthony J. Prieto Water Well Drilling, Inc.

POSTED

DEADLINE

Construction of The Recharge Master Plan Update (RMPU) Basin Improvements Project - Montclair Basin Improvements

Solicitation # construction-recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin-0

The Recharge Master Plan Update Basin Improvements Project involves the construction of two drop inlet diversion structures across the 25-foot-wide concrete San Antonio Creek Channel in Montclair, California. The scope of work includes excavating 8 to 10 feet below the channel floor, installing steel debris grates, and fitting wall-mounted steel gates on the east sides of the structures. Additionally, the contractor must install 4-foot-diameter discharge pipelines leading to Montclair Basins 2 and 3, which will be covered by 3 feet of soil, and construct concrete outlet structures within the basins for flow dissipation. The project requires full electrical, instrumentation, and SCADA integration to manage gate actuation, with programming limited to Technical Systems, Inc. or E Technologies Group. This solicitation is managed by Granite Construction Company and is designated as a Disadvantaged Business Enterprise set-aside. Interested parties must submit responses by November 5, 2026.

Granite Construction Company

POSTED

DEADLINE

ARWA Carrizo System Expansion: Well Drilling

Solicitation # arwa-carrizo-system-expansion-well-drilling

The Alliance Regional Water Authority is seeking bids for the Carrizo System Expansion project focusing on well drilling services located in Rosanky, Texas. This solicitation, identified as ARWA IFB Number 2026-001, is managed by Hydro Resources - Mid Continent, Inc. and falls under NAICS code 237990. The opportunity is specifically set aside for Small Businesses and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 3, 2026. Primary coordination for this contract is handled by Amy Majors.

Hydro Resources - Mid Continent, Inc.

POSTED

DEADLINE

Construction of The Recharge Master Plan Update (RMPU) Basin Improvements Project - Montclair Basin Improvements

Solicitation # construction-recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin

Empire Equipment Service, Inc. is soliciting quotes from certified DBE and DVBE subcontractors and suppliers for the Montclair Basins 2 and 3 Diversion Improvements project. This work is part of the Recharge Master Plan Update Basin Improvements Project located at the San Antonio Creek Channel in Montclair, California, performed for the Inland Empire Utilities Agency. The solicitation is open to various small business designations, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone certified businesses. Interested parties must submit their responses by November 5, 2026. Primary inquiries and submissions should be directed to Gio Marquez via the provided estimating email or phone contact.

Empire Equipment Service, Inc.

POSTED

DEADLINE

Site Compliance and Improvements - Patton Landing

Solicitation # site-compliance-improvements-patton-landing

The State of California Department of General Services is seeking bids for the Site Compliance and Improvements project at Patton Landing, located in Carnelian Bay, Placer County. Identified by Project Number 13891 and Event ID 0000040533, this solicitation focuses on site compliance and infrastructure enhancements under NAICS code 237990. This opportunity is specifically set aside for SBA certified Service-Disabled Veteran Owned Small Businesses and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 10, 2026. Primary coordination for this project is managed through Nayvi Waite at Resource Development Company LLC.

Resource Development Company LLC

POSTED

DEADLINE

Structural Repair at NCMT Berths 24-3 and 24-4, CA

Solicitation # structural-repair-ncmt-berths-24-3-24-4-ca

This solicitation, issued by Griffith Company, concerns structural repair work at NCMT Berths 24-3 and 24-4 located in California. The scope of work involves the demolition and removal of existing concrete decks, pile caps, and appurtenances, followed by the construction of a new reinforced concrete deck. Additionally, the project requires the repair of existing piles, the installation of pile jackets, and the replacement of various waterfront elements, including bull rails, wale systems, fenders, and mooring hardware such as bollards. The opportunity is set aside for small businesses under NAICS code 237990. Interested parties must submit their responses by the deadline of November 4, 2026. Primary coordination for this project is handled by Savana Powell.

POSTED

DEADLINE

Drainage Pipe Installation & ReplacementThis subcontract for Drainage Pipe Installation and Replacement involves providing specialized services for prime contractors on Georgia Department of Transportation projects. The scope of work includes the excavation and disposal of failed drainage pipes, bedding preparation, the installation of new replacement piping, and professional joint sealing to ensure a fully functional drainage system. All work must be performed in strict accordance with GDOT routine maintenance standards. Additionally, contractors are required to provide a Georgia Security and Immigration Compliance Act Affidavit. The solicitation was posted on October 28, 2026, with a response deadline of November 12, 2026.

Department of Transportation

POSTED

DEADLINE

Concrete Retaining WallsThis subcontract opportunity involves the construction of combination-type concrete retaining walls for prime contractors working on street rehabilitation projects for the City of San Antonio in Texas. The scope of work includes performing excavation, installing reinforcement, and pouring concrete walls to ensure proper soil retention, utilizing rebar and heavy excavation equipment to deliver completed structures. The project is categorized under NAICS code 237990. Interested parties should note that the solicitation was posted on October 28, 2026, with a response deadline set for December 1, 2026.

POSTED

DEADLINE

The Ohio Department of Natural Resources is seeking proposals for the Cowan Lake Dam Improvements project under solicitation number 49359. This SLED organization opportunity is categorized under NAICS code 237990, focusing on specialized heavy civil engineering construction. The solicitation was posted on October 28, 2026, and requires all responses to be submitted by the deadline of November 6, 2026. Interested parties can find further details and submission guidelines through the provided Bid Express link.

Ohio Department of Natural Resources

POSTED

DEADLINE

Gas Utility ImprovementsThis subcontract focuses on the execution of gas line improvements for prime contractors working on City of San Antonio infrastructure projects. The scope of work involves performing gas utility upgrades and relocations specifically designed to meet CPS Energy standards to ensure the delivery of modernized gas infrastructure. The opportunity is categorized under NAICS code 237990 and is associated with the City of San Antonio in Texas. Interested parties should note that the response deadline is December 1, 2026, with the solicitation having been posted on October 28, 2026.

POSTED

DEADLINE

Sewer Connection ServicesThis subcontract for Sewer Connection Services involves the installation of NIW sewer connections to Kinnard Street for prime contractors working on Department of Education facility projects. The scope of work includes all necessary excavation, pipe laying, and the final connection to the municipal sewer main to ensure a functional, inspected, and approved system. To be eligible for this project, the contractor must hold NIW approved contractor status and secure all required street works permits. The contract falls under NAICS code 237990 and is specifically designated for infrastructure improvements supporting Department of Education facilities.

Department of Education

POSTED

about 10 hours ago

DEADLINE

N/A

AI Contract Overview

This contract involves earthwork activities including excavation, grading, soil stabilization, and repairs related to solid waste containment areas. It specifically focuses on erosion control measures and the repair of landfill liners to ensure environmental safety and structural integrity. The scope of work is designed to support site stabilization and maintain compliance with environmental standards. Issued by the California Department of Corrections & Rehabilitation, this subcontract falls under NAICS Code 237990, which covers other heavy and civil engineering construction. While certain logistical details such as the exact location and point of contact are not specified, the contract was posted on April 2, 2026, and responses are due by June 11, 2026. The project offers an opportunity for qualified contractors specializing in site preparation and environmental remediation to contribute to maintaining infrastructure critical to waste containment and environmental protection within California.