This Subcontract opportunity from Massachusetts was posted on August 4, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Concrete Retaining Wall Installation

Closed

State & Local

Submission Closed09/02/2026, 02:00:00 PM EDT

Contract Overview

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

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NAICS: 238110

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26_1119 – Robbinsdale-MN

Solicitation # 261119-robbinsdale-mn

Caldwell Tanks, Inc. is seeking subcontractors for a water tank construction project located in Robbinsdale, Minnesota. The solicitation covers several specialized scopes of work, including site work under NAICS 238910, tank painting under NAICS 238320, and electrical work under NAICS 238210. Interested parties must submit their responses by the deadline of November 17, 2026. The project emphasizes Disadvantaged Business Enterprise participation, with target goals set at 3.5 percent for Minority Business Enterprises and 5.0 percent for Women Business Enterprises. Primary inquiries should be directed to Kendal Eckert.

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Elbon Tank #2, Schedule 2- Elevated Tank Project

Solicitation # elbon-tank-2-schedule-2-elevated-tank-project

Caldwell Tanks, Inc. is seeking subcontractors for the Elbon Tank #2, Schedule 2 Elevated Tank Project located in Phillip, South Dakota. The scope of work includes several specialized trades, specifically site work under NAICS 238910, tank painting under NAICS 238320, and electrical work under NAICS 238210. This solicitation is designated as a set-aside for Small Businesses, including SAM.gov designated Small Disadvantaged Businesses and Department of Transportation Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 13, 2026. Primary inquiries regarding this opportunity should be directed to Eric Koetter.

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DEADLINE

PV Mounting Structures and Civil WorksThis subcontract involves the supply and installation of metal support structures and concrete bases for hybrid off-grid solar projects managed by the UNHCR in Farchana, Chad. The scope of work includes the fabrication and installation of stainless steel mounting structures, as well as the casting of reinforced concrete bases or the execution of roof-fixing, to ensure a securely anchored system for PV modules. The contractor is responsible for ensuring that all structures are wind-resistant and meet all provided technical specifications. This project falls under NAICS code 238110 and is designed to support prime contractors in delivering critical energy infrastructure within the region.

POSTED

DEADLINE

Concrete and Masonry ContractorThis subcontract involves providing specialized concrete and masonry services for UNHCR facility projects located in Adré, Chad. The scope of work focuses on the execution of reinforced concrete and block work, specifically including the pouring of lean concrete for footings, the installation of reinforced concrete for isolated footings and ground beams, and the construction of sub-foundation walls utilizing 20x20x40 full concrete blocks. The contractor is responsible for delivering completed structural foundations and masonry walls in strict accordance with Chadian national standards and international building rules of art. Operating under NAICS code 238110, the selected provider will work as a subcontractor to prime contractors to ensure all structural elements meet the required technical specifications for the agency's facilities.

POSTED

DEADLINE

Foundation & Drilled Shaft ConstructionThis subcontract for Foundation and Drilled Shaft Construction involves providing specialized installation services for prime contractors operating on Central Florida Tourism Oversight District projects. The scope of work includes the complete process of drilling, installing steel reinforcement, and pouring concrete for signal foundations, ensuring all deliverables meet strict FDOT specifications. The project requires the use of professional drilling rigs and the delivery of fully completed and cured drilled shaft foundations. Interested parties should note that the response deadline for this opportunity is December 7, 2026.

Central Florida Tourism Oversight District

POSTED

DEADLINE

Concrete Barrier and Transition InstallationThis subcontract involves the installation of concrete barriers and transitions for prime contractors on Caltrans highway projects located in San Diego County. The scope of work includes the installation of 92-foot and 56-foot Type 60M concrete barriers, 12-inch concrete barrier transitions, and concrete ditch lining, all of which must comply with 2026 Standard Plans A76A and A76G. The contractor is responsible for delivering the fully completed and installed concrete barrier system. The project falls under NAICS code 238110 and requires strict adherence to Build America Buy America standards. Interested parties must submit their responses by November 23, 2026, for this California Department of Transportation initiative.

California Department of Transportation

POSTED

DEADLINE

Concrete Footing InstallationThis subcontract for Concrete Footing Installation involves supplying and placing concrete for prime contractors working on Chicago Public Schools facility projects. The scope of work specifically focuses on pouring concrete foundations for ornamental fence posts, ensuring that all footings meet specified depths and strengths while maintaining proper curing and alignment of the post bases. The project is categorized under NAICS code 238110 and was posted on November 6, 2026. Interested parties must submit their responses by the deadline of November 24, 2026. All deliverables must strictly adhere to the project specifications provided by the agency.

Chicago Public Schools

POSTED

DEADLINE

Concrete and Masonry RepairThis subcontract agreement involves providing concrete and masonry repair services for prime contractors working on Texas Health and Human Services Commission facility projects. The scope of work specifically includes filling holes in concrete floors and removing broken brick to fill voids with concrete to ensure the delivery of fully repaired surfaces. The project is categorized under NAICS code 238110 and requires all personnel to undergo Texas DPS criminal and sex offender background checks. Interested parties should note the response deadline of December 1, 2026, for this state-level agency requirement.

Health and Human Services Commission

POSTED

DEADLINE

Headwall Removal and Concrete ReplacementThis subcontract for the Hall County Board of Commissioners involves the demolition of existing concrete structures and the construction of new stormwater headwalls. The scope of work includes the removal of old headwalls, necessary excavation, and the forming and pouring of three new concrete headwalls, specifically two for 72-inch pipes and one for a 24-inch pipe. The contractor is responsible for providing all required excavators and concrete forming equipment to complete the installation. The project is categorized under NAICS code 238110 and was posted on November 6, 2026, with a response deadline of December 3, 2026. The selected subcontractor will work under prime contractors to deliver the completed headwall installations within Georgia.

Hall County Board of Commissioners

POSTED

DEADLINE

Concrete Repair & PavingThis subcontract, titled Concrete Repair and Paving, involves performing specialized concrete repairs and roadway pavement installation for prime contractors on US Army facility projects located in Greenville, Kentucky. The scope of work includes repairing concrete for dispenser and offload fueling islands, as well as the installation of concrete circulation pavement and splash blocks. All work must be executed in strict accordance with UFGS 03 30 00 and UFGS 32 13 13.06 standards. The project is managed by the Bristol Alliance of Companies through their Golden Colorado office and falls under NAICS code 238110. Interested parties should note that the response deadline for this opportunity is December 22, 2026.

Bristol Alliance of Companies

POSTED

DEADLINE

Oahe Res. Auxiliary Spillway Interim Rep

Bureau of Reclamation

POSTED

DEADLINE

DK Repair Keyhole Spillway

Bureau of Reclamation

POSTED

1 day ago

DEADLINE

N/A

AI Contract Overview

The contract involves the supply and installation of segmental concrete retaining wall units, requiring precise layout, leveling, and interlocking in strict accordance with an engineered design. All work must be coordinated with underlying drainage systems and structural reinforcement to ensure long-term stability and compliance with engineering specifications. The project is scoped as a subcontract under the NAICS code 238110 and is being procured by the Town of Carlisle through its CRLSE division in Massachusetts. Performance is required at Westford Street in Carlisle, with a ZIP code of 01741. Bids must be submitted by September 2, 2026, at 6:00 PM, following the posting date of August 4, 2026. The contract does not specify a set-aside type or point of contact, and all details are to be obtained through the provided official link.

General Info

Supply and install segmental concrete retaining walls at Westford Street, Carlisle, MA, by Sept 2, 2026, per engineered specs.

Agency

Massachusetts → CRLSE - Town of Carlisle

NAICS

238110 - Poured Concrete Foundation and Structure Contractors

Place of Performance

Westford Street Carlisle, MA, 01741, USA

Set-Aside

NONE

Documents

This scope was carved out of BD-23-1443-CRLSE-CRLSE-132067.

The full solicitation package (28 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Carlisle Public School Retaining Wall Replacement Project

AI Contract Breakdown

Uniform Contract Format

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Timeline

PhaseClosed

PostedAug 4

subcontract

Response DeadlineSep 2

Deadline has passed

Submission Closed

09/02/2026, 02:00:00 PM EDT

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Organization & Contact Information

AgencyMassachusetts → CRLSE - Town of Carlisle

ContactsNo contacts available

OfficeN/A

Organization / AgencyMassachusetts → CRLSE - Town of Carlisle

Office AddressN/A

ContactsNo contact information available

Full Description

Supply and install segmental concrete retaining wall units, including layout, leveling, and interlocking per engineered design, coordinated with drainage and reinforcement.

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