This Subcontract opportunity from Government of Canada was posted on April 22, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Backfilling and Compaction Services

Closed

International

Submission Closed05/11/2026, 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: 238910

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Clean Fill Supply and InstallationThis subcontract opportunity, managed by DAS Procurement for the State of Connecticut, involves the supply and installation of ordinary borrow and clean fill material for environmental remediation projects in the Town of Redding. The selected contractor will be responsible for delivering clean fill, performing installation and compaction within excavated areas, and ensuring all site areas are properly backfilled and compacted. A critical requirement of the contract is the provision of material certification for all clean fill used. Interested parties must submit their responses by December 7, 2026, in accordance with the solicitation posted on November 8, 2026. The project falls under NAICS code 238910.

POSTED

DEADLINE

Structural Demolition and Debris ManagementThis subcontract for Structural Demolition and Debris Management involves the demolition of interior elements and overall building structures for prime contractors working on environmental remediation projects for the Town of Redding. The scope of work includes the mechanical demolition of equipment, partitions, and walls, with a specific requirement to segregate unpainted scrap metal and clean concrete for recycling purposes to ensure the delivery of fully demolished structures. The project is managed through DAS Procurement for the state of Connecticut under NAICS code 238910. To be eligible, contractors must comply with OSHA construction standards and obtain all necessary demolition permits from the Town of Redding. The solicitation was posted on November 8, 2026, with a response deadline of December 7, 2026.

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Earthworks and Excavation ServicesThis subcontract for Earthworks and Excavation Services involves performing site preparation and ground-moving activities for prime contractors on UNHCR facility projects located in Adré, Chad. The scope of work includes site layout, the excavation of 233.68 cubic meters of pits for foundations and 53.5 cubic meters of trenches, as well as the application of 233.3 cubic meters of sandy or lateritic backfilling. To complete these deliverables, the contractor will utilize specialized machinery including excavators, compactors, and surveying equipment. All operations must be executed in strict adherence to Chadian national standards and the prime contractor's health, safety, and environmental plans to ensure the successful delivery of compacted fill and prepared excavations.

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Dewatering & Contaminated Water RemovalThis subcontract for Dewatering and Contaminated Water Removal supports prime contractors on SFO AirTrain projects under the California Design and Construction Electrical Engineering agency. The scope of work involves removing water from approximately 60 manholes and utility tunnels to ensure dry work areas. The contractor is responsible for testing all extracted water for fuel, oil, and grease contamination and managing the legal off-site disposal of any contaminated materials. To qualify, the contractor must possess hazardous material transport permits and environmental disposal certifications. Key deliverables include the provision of dry work sites and the submission of official disposal manifests. The response deadline for this opportunity is December 8, 2026.

Design and Construction - Electrical Engineering

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Existing Video Board Removal and DisposalThis subcontract opportunity involves the removal and legal disposal of legacy video board systems for prime contractors working on 22nd District Agricultural Association projects in California. The selected contractor will be responsible for dismantling existing videoboards and hauling away electronic waste in strict accordance with local and state regulations to ensure the site is cleared and ready for new installations. Interested parties must hold a valid DIR Public Works Contractor Registration to be eligible. The solicitation was posted on November 6, 2026, with a response deadline of December 8, 2026. This project falls under NAICS code 238910 and is managed through the Cal eProcure system.

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Turf Renovation & Soil ProcessingThis subcontract for Turf Renovation and Soil Processing involves large-scale soil processing and grading for athletic field projects within the City of Pasadena. The selected contractor will work under prime contractors to process existing field soil to a minimum depth of 8 inches to eliminate compaction and perform precise grading to create a durable, uniform natural turf surface. Responsibilities include coordinating with DigAlert for necessary utility clearances to ensure safe site operations. Eligible bidders must hold a valid California C-27 Landscaping Contractor license and maintain current DIR registration. This opportunity is managed by the Parks, Recreation and Community Services Department in California, with a response deadline set for November 20, 2026. The primary objective is the delivery of a fully processed and graded planting surface suitable for high-quality athletic use.

Parks, Recreation and Community Services Department

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Underground Storage Tank (UST) RemovalThis subcontract opportunity involves the removal and disposal of underground storage tanks ranging from 1,000 to 5,000 gallons for prime contractors working on California Department of Corrections and Rehabilitation facility projects. The scope of work requires the use of specialized excavation equipment and tank lifting gear to extract and deliver the storage tanks. Performance of these services will take place in Alameda, California. Qualified bidders must possess the necessary UST removal certifications and licensing to be eligible for the project. The solicitation was posted on November 6, 2026, with a response deadline set for December 4, 2026. This project falls under NAICS code 238910.

California Department of Corrections & Rehabilitation

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Earthwork and Structure RemovalThis subcontract opportunity, titled Earthwork and Structure Removal, involves providing specialized excavation and demolition services for prime contractors working on Hawaii Department of Transportation highway projects. The scope of work includes the removal of existing structures and obstructions, as well as performing excavation and backfilling for markers and posts utilizing heavy machinery to deliver fully cleared sites. The solicitation was posted on November 6, 2026, with a response deadline of December 5, 2026. Classified under NAICS code 238910, this project is managed through the Hawaii Department of Transportation. Interested parties can find further details via the official HIEPRO procurement portal.

Department of Transportation

POSTED

DEADLINE

Site Preparation for Pre-Construction Utility Relocation Services

Solicitation # FY27-RFP-15

The City of Charlotte, through its Charlotte-Mecklenburg Storm Water Services department, is soliciting proposals for site preparation services to support private utility relocations. This as-needed contract focuses on removing obstacles from private utility ways to ensure that utilities can be successfully relocated prior to the start of various construction projects. Interested companies must submit their responses by December 3, 2026, for solicitation number FY27-RFP-15. The work will be performed within the state of North Carolina, and inquiries regarding this opportunity can be directed to the primary point of contact, Elizabeth Murray.

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Seismic Retrofitting & Structural EngineeringThis subcontract for Seismic Retrofitting and Structural Engineering involves providing structural analysis and physical reinforcements for prime contractors working on California Department of General Services facility projects. The scope of work includes conducting structural integrity assessments and installing foundation reinforcements, wall anchors, and seismic braces using epoxy anchors and structural steel. All activities must strictly adhere to the California Building Code and State seismic safety specifications, culminating in the delivery of installed reinforcements and a certified seismic safety compliance report. The opportunity is categorized under NAICS code 238910 and was posted on November 6, 2026, with a response deadline of November 21, 2026. Interested parties can find further details through the Cal eProcure portal.

California Department of General Services

POSTED

DEADLINE

Earthwork and Site GradingThis subcontract for Earthwork and Site Grading involves providing specialized grading and earthwork services for prime contractors working on Chicago Public Schools facility projects. The scope of work includes topsoil removal, excavation for fence post bases, and backfilling, culminating in the delivery of a graded and stabilized subgrade. Technical requirements specify that proof rolling must be performed using pneumatic rollers or 25-ton trucks in accordance with ASTM D1557 standards. Additionally, the contractor is responsible for restoring any damaged areas through seeding and watering. The solicitation was posted on November 6, 2026, with a response deadline of November 24, 2026.

Chicago Public Schools

POSTED

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Selective Demolition and Site ClearingThis subcontract for Selective Demolition and Site Clearing involves performing specialized demolition services for prime contractors on Chicago Public Schools facility projects. The scope of work includes the removal of existing five foot chain link fencing and related building elements, as well as the location, disconnection, and capping of electrical systems and utility services. The contractor is responsible for disposing of all spoils in strict accordance with the MEC Design Manual and NFPA 241 standards to ensure the site is fully cleared and ready for new construction. This opportunity is categorized under NAICS code 238910, with a response deadline set for November 24, 2026.

Chicago Public Schools

POSTED

2 days ago

DEADLINE

in 16 days

AI Contract Overview

The contract involves backfilling trenches after pipe installation and ensuring the backfill material is compacted to meet either 95% or 98% of the Modified Proctor density, which is critical for structural stability and compliance with project specifications. This subcontract opportunity is issued by the National Capital Commission under the Government of Canada. The work is to be performed in Gatineau, Canada, and falls under the NAICS code 238910, which covers site preparation contractors. The solicitation was posted on April 22, 2026, with a response deadline set for May 11, 2026. Although there is no information on set-asides or specific organization types targeted, the contract emphasizes technical compliance with compaction standards post-installation. Interested parties are directed to submit their proposals before the deadline as outlined in the official tender announcement via the Canada Buys portal.