This Subcontract opportunity from California was posted on September 21, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Concrete Construction (Sidewalks & Curbs)

Closed

State & Local

Submission Closed10/04/2026, 02:00:00 PM PDT

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 bidders must adhere to specific Disadvantaged Business Enterprise participation targets, which are set at 3.5 percent for Minority Business Enterprises and 5.0 percent for Women Business Enterprises. The response deadline for this opportunity is November 17, 2026. Primary inquiries should be directed to Kendal Eckert.

POSTED

DEADLINE

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 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 coordination for this opportunity is handled by Eric Koetter.

POSTED

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

This subcontract for the City of Hayward Department of Public Works involves the removal and installation of concrete pedestrian infrastructure for the South Hayward Safe Routes For Seniors project. The scope of work includes sawcutting, demolishing, and removing existing sidewalks, bus pads, driveways, and curbs, followed by the placement of aggregate base and the pouring of new concrete for sidewalks, curb ramps, and median curbs. Additionally, the contractor is responsible for installing detectable warning surfaces. Qualified bidders must hold a C-8 license to perform these services in Hayward, California. The solicitation was posted on September 21, 2026, with a response deadline of October 4, 2026. The project falls under NAICS code 238110 and requires the delivery of fully installed concrete sidewalks, curb ramps, and curbs.

General Info

C-8 licensed contractor for concrete pedestrian infrastructure installation in Hayward, California.

Agency

California → City Of Hayward Department Of Public Works

NAICS

238110 - Poured Concrete Foundation and Structure Contractors

Place of Performance

Hayward, CA, 94541, USA

Set-Aside

NONE

Documents

This scope was carved out of 05323.

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

View the prime solicitation

South Hayward Safe Routes For Seniors Project

AI Contract Breakdown

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Timeline

PhaseClosed

PostedSep 21

subcontract

Response DeadlineOct 4

Deadline has passed

Submission Closed

10/04/2026, 02:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → City Of Hayward Department Of Public Works

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → City Of Hayward Department Of Public Works

Office AddressN/A

ContactsNo contact information available

Full Description

Performs removal and installation of concrete pedestrian infrastructure for prime contractors on the South Hayward Safe Routes For Seniors project. Sawcuts, demolishes, and removes existing sidewalks, bus pads, driveways, and curbs; places aggregate base and pours new concrete for sidewalks, curb ramps, and median curbs. Installs detectable warning surfaces. Requires C-8 license. Delivers installed concrete sidewalks, curb ramps, and curbs.

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