This Government Contract opportunity from Washington was posted on April 29, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Trenching and Excavation

Closed

State & Local

Submission Closed05/20/2026, 08:00:00 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

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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

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

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 restoration of an existing boat ramp facility that has suffered typical degradation. Key activities include the removal of the existing structure, dredging and grading of native soils, placement of gravel fill, and the final design and installation of new concrete boat ramps. The finished facility must feature four launching bays providing eight total ramps, with two outer ramps measuring approximately 56 feet and six interior ramps measuring approximately 46 feet from mean high water to the toe. The completed ramps must be capable of supporting vessels exceeding 35 feet with combined weights over 10 tons. Additional requirements include the temporary relocation and preservation of floating docks and gangways to ensure ADA-compliant travel. The project is categorized as marine construction with an estimated value of 750,000 dollars. Bidders must provide a bid security equal to 10 percent of their maximum bid price and furnish payment and performance bonds within ten days of a contract award. The period of performance is 180 calendar days from the Notice to Proceed. Contractors must choose between two construction sequencing options: Alternate A, which utilizes a phased closure to minimize public disruption, or Alternate B, which allows for a maximum 45-day simultaneous closure of all ramps. Technical specifications require concrete with a compressive strength of 4,000 PSI and a minimum design load of 300 PSF. Environmental compliance is mandatory, requiring the implementation of Stormwater Pollution Prevention Plans and the use of turbidity curtains.

POSTED

DEADLINE

Site Work and EarthworkThis subcontract for Site Work and Earthwork involves comprehensive site preparation for a school addition project managed by the Henry County Board of Education in Georgia. The scope of work includes critical early-stage construction activities such as clearing and grubbing, rough grading, soil stabilization, and trenching for utilities. The primary objective is to deliver a fully graded building pad and a site properly prepared for subsequent foundation work and drainage requirements. The solicitation was posted on October 28, 2026, with a response deadline set for December 3, 2026. Classified under NAICS code 237990, the contract requires the selected subcontractor to coordinate closely with prime contractors to ensure all excavation and grading specifications are met to prepare the facility for vertical construction.

Henry County Board of Education

POSTED

DEADLINE

Sewer Main Pipe Bursting SpecialistThis subcontract agreement appoints a Sewer Main Pipe Bursting Specialist to perform trenchless rehabilitation of existing sewer mains for prime contractors on Napa Sanitation District projects in Napa, California. The scope of work involves the rehabilitation of approximately 13,769 linear feet of 6-inch and 8-inch sewer mains utilizing pipe bursting equipment and the installation of replacement HDPE or compatible piping. The selected contractor must maintain DIR Registration and strictly adhere to all established trenching and excavation safety standards to ensure the successful delivery of the rehabilitated infrastructure. Interested parties must submit their responses by the deadline of December 3, 2026.

Napa Sanitation District

POSTED

about 10 hours ago

DEADLINE

in about 1 month

AI Contract Overview

The contract calls for the excavation of trenches to install a water main, requiring comprehensive site preparation including shoring to stabilize trench walls, dewatering to manage groundwater, and temporary traffic control measures to ensure public safety during operations. All work must strictly adhere to established safety standards and industry best practices to protect workers and the surrounding infrastructure. The scope is focused on execution of fieldwork under the subcontract category, with performance expected to meet stringent regulatory and operational requirements typical of public utility projects. Filed under NAICS code 237990 for other heavy and civil engineering construction, the contract was posted by the Washington agency Procurement and Contract Services with a response deadline of May 20, 2026. Although specific location details are not provided, the work will occur within the jurisdiction of Pierce County, Washington, as indicated by the associated portal link. Subcontractors interested in bidding must prepare responses prior to the deadline, ensuring compliance with all technical, safety, and logistical demands outlined in the solicitation.