This Subcontract opportunity from Government of Canada was posted on May 8, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Underwater/Marine Construction Services

Closed

International

Submission Closed05/22/2026, 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, which pertains to other heavy and civil engineering construction. The notice was posted on November 7, 2026, and the deadline for responses is set for September 30, 2027. Interested parties can find further details and manage bids 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, titled the Alta, Riverview, and Kings Canyon High Well Drilling Phase. This project involves well drilling operations across multiple locations in California, specifically within Reedley, Parlier, Dinuba, and Fresno. The solicitation is categorized under NAICS code 237990 and is managed through Anthony J. Prieto Water Well Drilling, Inc. This opportunity is designated as an SBA set-aside, making it available to various small business categories, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. The solicitation was posted on November 7, 2026, with a response deadline of November 10, 2026. Interested parties may contact Jennah Castagna for further information regarding the submission process.

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, Real Estate Services Division, is seeking bids for the Site Compliance and Improvements project at Patton Landing located in Carnelian Bay, Placer County, California. 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

Imperial Irrigation District – East Highline Reservoir

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

Granite Construction Company is seeking quotes for the Imperial Irrigation District East Highline Reservoir project located in California. This solicitation is specifically open to qualified socioeconomic firms, including certified Small Business, Women-Owned Small Business, Minority Business, and Disadvantaged Business Enterprises. The scope of work is extensive, covering a wide array of material supplies and construction services such as crushed stone, sand, gravel, concrete, reinforcing steel, and lumber, as well as specialized labor for clearing, grading, excavation, erosion control, and electrical and signal installation. Additional requirements include professional services for environmental consulting, materials testing, and land surveying, along with a comprehensive need for various trucking and hauling services. Interested parties must submit their responses by December 2, 2026. All inquiries and submissions should be directed to the primary point of contact, Andrew Burk, via the provided email or phone contact information.

Granite Construction Company

POSTED

DEADLINE

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

DEADLINE

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

POSTED

DEADLINE

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

DEADLINE

Physical Hazard Rehabilitation at the former Hunt, Cornelius Mine

Solicitation # tender_22298

The Government of Ontario, through the Ministry of Energy and Mines, is soliciting bids for physical hazard rehabilitation at the former Hunt, Cornelius Mine. The project scope consists of five primary tasks: the detailed design and installation of a bat gate, the installation of 500 meters of fencing, project management including mobilization, demobilization, and access maintenance, and progressive rehabilitation reporting. All work must comply with specific technical standards, including the Agency Guide to Cave and Mine Gates 2009, a physical mine hazards risk assessment, and species at risk surveys. The anticipated contract start date is January 7, 2026, with a primary term of two years and a one-year extension option. The procurement process involves a mandatory site visit on November 18, 2026, with a final response deadline of December 7, 2026. Bids are evaluated in three stages: a mandatory qualification review, a technical evaluation requiring a minimum score of 70 percent, and a commercial evaluation based on pricing. Technical scoring is weighted across project experience, roles and responsibilities, occupational health and safety requirements, and a plan for beneficial participation with Ontario Indigenous communities. Awardees must provide proof of WSIB coverage, insurance, and tax compliance, and must identify a dedicated project team including a Project Manager, a Professional Engineer, and various technical support leads.

POSTED

DEADLINE

Emergency Earthwork and Erosion ControlThe Emergency Earthwork and Erosion Control subcontract involves providing critical stabilization services for slopes and embankments, as well as site clearing, for prime contractors working on Town of West Springfield DPW projects. The scope of work includes grading, debris hauling, and the installation of erosion control blankets or rip-rap, utilizing heavy equipment such as loaders and dump trucks. The contractor is responsible for delivering fully stabilized sites with all debris removed while ensuring strict adherence to stormwater runoff and environmental regulations. This opportunity is categorized under NAICS code 237990 and was posted on November 6, 2026. Interested parties must submit their responses by the deadline of December 11, 2026, at 3:00 PM. The project is situated within Massachusetts and is managed by the Town of West Springfield.

Town of West Springfield

POSTED

DEADLINE

On-Call Emergency Construction Work

Solicitation # BD-27-1347-WS400-WS400-135219

The Town of West Springfield, through its Department of Public Works, is soliciting sealed bids from qualified contractors for on-call emergency construction work. This solicitation, identified by number BD-27-1347-WS400-WS400-135219, was posted on November 6, 2026, with a response deadline and bid opening scheduled for December 11, 2026, at 10:00 AM. The project is based in Massachusetts and is managed by the primary point of contact, Purchaser Jaime Flores. The scope of work focuses on providing emergency construction services on an as-needed basis. While specific pricing and contract values are not predefined in the solicitation, the requirement is listed as a single line item for on-call services. Interested contractors must submit sealed bids, as electronic quotes are not permitted. Detailed specifications for the work can be accessed through the Town of West Springfield's official procurement bids portal.

Town of West Springfield

POSTED

DEADLINE

26-8708 South Marco Beach Renourishment 2027 - Grant Funded

Solicitation # 26-8708

Solicitation 26-8708 is a grant-funded project issued by the Collier County Board of County Commissioners for the 2027 South Marco Beach Renourishment. With an anticipated budget of 6,400,000 dollars, the project involves the transport, placement, and grading of pre-purchased beach fill material, as well as turbidity monitoring, surveying, and maintenance of traffic. The contract will be awarded to the lowest responsive and responsible bidder based on their base bid and selected alternates. Bidders must demonstrate performance capability by providing three completed beach restoration references in Florida and submitting a detailed project schedule and subcontractor list. The project requires substantial completion within 55 consecutive calendar days from the commencement date, with final completion due within 30 days after the delivery of a punch list. Delays are subject to liquidated damages of 3,498 dollars per day. The successful contractor must provide performance and payment bonds for 100 percent of the contract amount, a 5 percent bid bond, and comprehensive insurance. Because the project is funded by FEMA Public Assistance, it must comply with 2 CFR Part 200 and the Stafford Act, although it is exempt from the Davis-Bacon Act, the Copeland Anti-Kickback Act, and Build America Buy America preferences. Technical acceptance is based on strict vertical tolerances of 6 inches and volume tolerances between 95 and 105 percent of the design volume.

Coastal Zone Management

POSTED

1 day ago

DEADLINE

in about 1 year

AI Contract Overview

The contract involves performing submerged construction operations in a freshwater lake environment, requiring specialized underwater capabilities such as pile driving, debris removal, accessory reinstatement, and inspection tasks. These activities must be executed by qualified dive teams or remotely operated vehicles to ensure precision and safety in challenging aquatic conditions. The work is classified under NAICS code 237990 and is structured as a subcontract under the authority of the Department of Fisheries and Oceans, Government of Canada, with the place of performance located across various sites within Canada. The solicitation was posted on May 8, 2026, and responses are due by May 22, 2026, providing potential contractors with a 14-day window to submit proposals. No set-aside provisions are specified, meaning the opportunity is open to all eligible subcontractors regardless of business size or ownership criteria. Contractors are expected to demonstrate proven experience in underwater marine construction, adherence to environmental regulations, and the ability to operate effectively in freshwater systems without disrupting ecological balance. All work must comply with federal standards and operational protocols enforced by the responsible government agency.

General Info

Underwater construction services for Department of Fisheries Canada, including pile driving and inspections.

Agency

Government of Canada → Department of Fisheries and Oceans

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

Canada, CAN

Set-Aside

NONE

Documents

This scope was carved out of 30007985.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

North Bay Harbour Improvements, North Bay, ON

AI Contract Breakdown

Uniform Contract Format

No documents to break down

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Timeline

PhaseClosed

PostedMay 8

subcontract

Response DeadlineMay 22

Deadline has passed

Submission Closed

05/22/2026, 07:00:00 PM UTC

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Organization & Contact Information

AgencyGovernment of Canada → Department of Fisheries and Oceans

ContactsNo contacts available

OfficeN/A

Organization / AgencyGovernment of Canada → Department of Fisheries and Oceans

Office AddressN/A

ContactsNo contact information available

Full Description

Perform submerged construction tasks including pile driving, debris removal, accessory reinstatement, and inspection using dive teams or ROVs in a freshwater lake environment.