This Subcontract opportunity from California was posted on May 22, 2025. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Excavation, Trenching, and Backfill

Closed

State & Local

Submission Closed06/29/2025, 05:00:00 PM PDT

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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ALTA, RIVERVIEW, AND KINGS CANYON HIGH WELL DRILLING PHASE

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

The Alta, Riverview, and Kings Canyon High Well Drilling Phase project, identified as Project No. 1000316-001C, is a solicitation issued for the Kings Canyon Unified School District. The scope of work involves well drilling operations located across Reedley, Parlier, Dinuba, and Fresno, California. This project falls under NAICS code 237990 and is managed through Anthony J. Prieto Water Well Drilling, Inc. This opportunity is specifically set aside for small businesses, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. The solicitation was posted on November 8, 2026, with a response deadline of November 10, 2026. Interested parties may coordinate through the primary point of contact, Jennah Castagna.

Anthony J. Prieto Water Well Drilling, 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 proposals for the Site Compliance and Improvements project at Patton Landing, located in Carnelian Bay, Placer County. This solicitation, identified by Project Number 13891 and Event ID 0000040533, 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

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Imperial Irrigation District – East Highline Reservoir

Solicitation # imperial-irrigation-district-east-highline-reservoir

Granite Construction Company is seeking quotes from qualified socioeconomic firms for the Imperial Irrigation District East Highline Reservoir project located in California. This solicitation is specifically open to certified Small Business, Women-Owned Small Business, Small Disadvantaged Business, and Disadvantaged Business Enterprise firms. The scope of work is extensive, covering a wide array of materials and services including the supply of crushed stone, sand, gravel, concrete, reinforcing bar, lumber, and fencing, as well as specialized labor for clearing, grubbing, roadway and structure excavation, grading, and erosion control. Additional requirements include professional services such as environmental consulting, materials testing, land surveying, and SWPPP planning. The project also necessitates significant hauling and equipment support, including various dump trucks, water trucks, and street sweeping services. 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

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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, focusing on specialized heavy civil engineering and construction activities necessary for the modernization of rail infrastructure. Interested parties have until September 30, 2027, to submit their responses. The procurement process is being managed through the agency's supplier portal, where detailed bidding information and submission requirements are hosted.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

Site Grading and Ditch ConstructionThis subcontract for Site Grading and Ditch Construction involves performing earthwork and grading for prime contractors on City of Hudson projects in Ohio. The scope of work includes excavating and grading to construct a new ditch, expanding an existing stormwater pond, and grading areas around catch basins to ensure proper flow. Additionally, the contractor is responsible for installing rock channel protection at outlets, with all work required to adhere to City of Hudson Engineering Standards to deliver a final product graded to design specifications. The opportunity was posted on November 8, 2026, with a response deadline of December 1, 2026. Classified under NAICS code 237990, this project focuses on specialized site preparation and stormwater management infrastructure. Interested parties can find further details through the provided Bid Express solicitation link.

POSTED

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Ellsworth Meadows Golf Course Hole 17 Retaining Wall Installation, Phase 2

Solicitation # 49915

The City of Hudson, Ohio, is soliciting bids for Phase 2 of the Ellsworth Meadows Golf Course Hole 17 Retaining Wall Installation. The project involves the construction of approximately 620 linear feet of retaining wall along the east side of hole 17, including clearing, grubbing, pruning, and construction layout staking. Work must adhere to the City of Hudson Engineering Standards for Infrastructure Construction and the January 1, 2023, State of Ohio Department of Transportation Construction and Material Specifications. The project is awarded on a unit price basis, with substantial completion required by February 22, 2027, and final completion by March 1, 2027. Bids must be submitted electronically via Bid Express by December 1, 2026, at 10:00 AM local time. Qualified bidders must provide a notarized Statement of Bidder's Qualifications demonstrating at least three years of experience with similar projects, a non-collusion affidavit, and a list of proposed subcontractors. Required security includes a bid guaranty and contract bond for the full bid amount, or a certified check or letter of credit for 10 percent of the bid value. The successful contractor must provide performance and payment bonds, three specific insurance policies, and comply with Summit County prevailing wage rates. The project engineer serves as the owner's representative and the final judge of work acceptability.

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Drainage Improvement and InstallationThis subcontract involves the execution of drainage improvement and installation works for UNESCO Office in Afghanistan projects located in the Daudi valley. The contractor is responsible for performing critical infrastructure tasks, including excavation, grading, and the installation of drainage channels or pipes. Additionally, the scope requires the integration of these drainage systems with stone masonry structures to ensure a fully functional system that adheres to all provided specifications. The project is categorized under NAICS code 237990 and is managed by UNESCO. All work is to be performed on-site in Afghanistan, focusing on delivering a completed drainage network that meets the technical requirements of the prime contractor and the overarching project goals.

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Travaux de génie civil, hydrauliques et l installation d un système solaire

Solicitation # UNDP-DJI-00276

The UNDP Djibouti is seeking bids for solicitation number UNDP-DJI-00276 to execute civil engineering, hydraulic works, and the installation of a solar photovoltaic system for the E-60 desalination unit in Ripta. The scope of work includes constructing a protective slab and shelter, installing reservoirs, pumps, piping, and water distribution points, as well as implementing brine management systems and site security measures. Additionally, the contractor is responsible for the sizing, supply, connection, and testing of the electrical and solar power systems. Interested parties must submit their offers electronically through the Quantum portal. To ensure receipt of any updates regarding offer requirements, bidders are encouraged to create a draft response in the system. New users must register a profile via the provided UNDP procurement links, while existing users should utilize their current credentials. All inquiries and official submissions should be managed through the system's messaging function and portal to be considered by the UNDP Procurement Unit.

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Specialized Civil Support for Electrical UtilitiesThe Specialized Civil Support for Electrical Utilities subcontract involves providing critical excavation and civil engineering services for prime contractors on Port of Stockton electrical projects. The scope of work includes trenching, boring, and excavation, with specific requirements for executing railroad crossings, utility locating, and dewatering. Additionally, the contractor is responsible for providing traffic control and confined-space entry services to ensure the delivery of prepared trenches and conduits ready for electrical installation. To successfully execute this contract, the provider must possess specialized equipment, including excavators and boring machines, and maintain necessary railroad flagging certifications. Interested parties must submit their responses by the deadline of December 16, 2026. This opportunity falls under NAICS code 237990 and is centered on supporting infrastructure development within the Port of Stockton in California.

POSTED

DEADLINE

Bulkhead Stabilization and Erosion Control InstallationThis subcontract for Bulkhead Stabilization and Erosion Control Installation involves performing specialized stabilization work for prime contractors on Texas Parks and Wildlife Department projects located at Lake Livingston State Park. The scope of work includes the installation of temporary stabilization measures, the implementation of earthwork, and the deployment of turbidity curtains to prevent sediment migration. To ensure environmental protection, the contractor must utilize equipment mats to minimize soil disturbance and take necessary precautions to protect archaeological resources, ultimately delivering a fully stabilized bulkhead area. The project falls under NAICS code 237990 and is associated with the state of Texas. Interested parties should note the posted date of November 6, 2026, with a response deadline set for November 19, 2026. Further details regarding the solicitation can be accessed through the Texas SmartBuy portal.

Parks and Wildlife Department

POSTED

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Temporary Stabilization of Bulkhead, Lake Livingston State Park

Solicitation # 802-27-86931

The Texas Parks and Wildlife Department is soliciting bids for the temporary stabilization of the bulkhead at Lake Livingston State Park in Polk County, Texas. The project requires a contractor to provide all labor, equipment, and materials to stabilize the eroding bulkhead, prevent further property loss, and mitigate safety risks to visitors while minimizing environmental impacts and protecting cultural resources. Work must be completed as soon as possible, but no later than December 31, 2026, with standard working hours from Monday through Friday, 8:00 AM to 5:00 PM. The contract will be awarded based on the best value, determined by the base bid, bidder responsiveness, and responsibility. Bidders must demonstrate successful experience with projects of similar size and complexity within the past five years and maintain a satisfactory performance score in the Vendor Performance Tracking System. Key requirements include compliance with prevailing wage scales, E-Verify usage, and the provision of a bid security bond for projects exceeding 25,000 dollars. Payments are made via state warrants within 30 days of receiving a properly prepared invoice. Final acceptance is subject to an inspection by TPWD personnel within five working days of completion, following a five-day advance notice from the contractor.

Parks and Wildlife Department

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ITS Conduit and TrenchingThis subcontract for ITS Conduit and Trenching involves providing specialized earthwork and installation services for prime contractors on Florida Department of Transportation projects. The scope of work includes the installation of Rigid Galvanized Steel conduit through both open trench and aboveground methods, as well as clearing, grubbing, and the installation of performance turf or sod. All activities must strictly adhere to FDOT right-of-way specifications to ensure the delivery of a fully installed conduit system and a properly restored site grade. The opportunity is categorized under NAICS code 237990 and was posted on November 6, 2026. Interested parties must submit their responses by the deadline of November 19, 2026, at 2:00 PM. This project is specifically designed to support infrastructure improvements within the state of Florida under the oversight of the Florida Department of Transportation.

Florida Department of Transportation

POSTED

2 days ago

DEADLINE

in 11 days

AI Contract Overview

This subcontract opportunity, titled Excavation, Trenching, and Backfill, is issued by Architecture Services for the state of California. The scope of work focuses on essential site preparation and utility infrastructure, specifically requiring excavation for utility runs, trenching for conduits, backfilling with proper compaction, and complete site restoration. The project is categorized under NAICS code 237990. The solicitation was posted on May 22, 2025, and interested parties must submit their responses by the deadline of June 30, 2025. Further details and submission guidelines can be accessed through the provided procurement portal link.