This Subcontract opportunity from California was posted on July 29, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Top

Transformer Pad and Switch Enclosure Installation

Closed

State & Local

Submission Closed08/27/2026, 12:00:00 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: 238110

New

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 goals, with target participation rates 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, and inquiries should be directed to Kendal Eckert.

POSTED

DEADLINE

Solicitation # 261123-hanska-mn

Caldwell Tanks, Inc. is seeking subcontracting opportunities for the construction of a water tank project located in Hanska, Minnesota. The solicitation, identified as 261123-hanska-mn, focuses on three primary areas of work: site work under NAICS 238910, tank painting under NAICS 238320, and electrical work under NAICS 238210. The overall project falls under the primary NAICS code 238110. This opportunity is designated as an SBA set-aside, specifically targeting Small Businesses, SBA certified Women-Owned Small Businesses, SBA certified HUBZone Small Businesses, and Department of Transportation Disadvantaged Business Enterprises. Interested parties must respond by the deadline of November 20, 2026. As a covered federal contractor, Caldwell Tanks, Inc. maintains compliance with affirmative action efforts for protected veterans and individuals with disabilities. Primary contact for this solicitation is Kendal Eckert.

POSTED

DEADLINE

Masonry ContractorThis subcontract opportunity is for a Masonry Contractor to support prime contractors on projects for the Quincy Housing Authority in Quincy, Massachusetts. The scope of work involves repointing existing masonry and infilling openings, such as windows and skylights, using bricks, blocks, and masonry mortar to create solid surfaces. The final deliverables include fully repointed walls and sealed openings. Interested parties must ensure compliance with M.G.L. c. 149 prevailing wage rates. The solicitation was posted on November 12, 2026, with a response deadline of December 9, 2026. The work will be performed at facilities located on Bicknell Street in Quincy.

Quincy Housing Authority

POSTED

DEADLINE

Structural Concrete Repair and Joint SealingThis subcontract for Structural Concrete Repair and Joint Sealing involves performing specialized demolition and reconstruction of concrete elements for prime contractors at Triple A S.A. E.S.P. potable water treatment plants in Colombia. The scope of work focuses on demolishing and reconstructing concrete joints between false bottoms and applying hermetic sealing using waterproof compounds and professional pouring equipment to ensure all seals are leak-proof. The project requires the contractor to hold specific waterproof sealing certifications to guarantee the quality of the repaired joints. Interested parties must note the response deadline of November 20, 2026, for this opportunity categorized under NAICS code 238110.

POSTED

DEADLINE

Bridge Deck MaintenanceThis subcontract opportunity, titled Bridge Deck Maintenance, is issued by the Dawson County Board of Commissioners in Georgia. The selected contractor will be responsible for performing essential maintenance and repair services on bridge decks for prime contractors working on county projects. The scope of work includes executing repairs on both wooden decking and concrete deck components to ensure surfaces are properly prepared prior to painting operations. All work must be completed according to GDOT specifications, utilizing professional carpentry tools for wood repairs and specialized concrete forming and pouring equipment for deck restoration. The primary objective is to deliver a restored and safe bridge deck. Interested parties must submit their responses by the deadline of December 9, 2026.

Dawson County Board of Commissioners

POSTED

DEADLINE

Concrete ContractorThis subcontract opportunity is for a Concrete Contractor to support prime contractors on government facility projects for the Clayton County Board of Commissioners in Georgia. The selected contractor will be responsible for the comprehensive installation of cast-in-place concrete, including the setup of formwork, placement of reinforcement, and the pouring of concrete for structural slabs, walls, and foundations. Additional technical requirements include the application of non-shrink grout, the use of glass-fiber reinforced concrete, and the installation of self-leveling underlayment. The solicitation was posted on November 12, 2026, with a response deadline of December 22, 2026. This project falls under NAICS code 238110 and is managed through the Georgia Department of Administrative Services. Interested parties must ensure all submissions are completed by the specified deadline to be considered for these structural concrete works.

Clayton County Board of Commissioners

POSTED

DEADLINE

Concrete and Foundation WorkThis subcontract for Concrete and Foundation Work involves the supply and installation of reinforced concrete foundations, slabs, and walls for municipal infrastructure projects within the City of Cambridge, Massachusetts. The scope of work specifically requires the pouring and finishing of concrete engineered to withstand corrosive salt environments to ensure the durability of the completed structural foundations. The opportunity is categorized under NAICS code 238110 and is managed by the City of Cambridge. Interested parties must submit their responses by the deadline of December 3, 2026. Performance of the contract will take place in Cambridge, Massachusetts, specifically within the 02139 zip code area.

POSTED

DEADLINE

Concrete and FoundationsThis subcontract for Concrete and Foundations, managed by Capital Buildings Projects in Massachusetts, involves the supply and installation of reinforced concrete for municipal facility projects within the City of Cambridge. The scope of work requires the contractor to perform formwork, rebar installation, and the pouring of high-strength, corrosion-resistant concrete specifically for foundations and slabs-on-grade, resulting in the delivery of completed concrete foundations and floor slabs. The opportunity was posted on November 12, 2026, with a response deadline of December 3, 2026. Classified under NAICS code 238110, this contract is intended for providers capable of supporting prime contractors on city-led infrastructure developments.

Capital Buildings Projects

POSTED

DEADLINE

Concrete Repair and Mechanical Surface ProfilingThis subcontract for Concrete Repair and Mechanical Surface Profiling supports prime contractors on City of Conroe Parks Operation projects in Texas. The scope of work involves performing minor concrete repairs, treating cracks to prevent reflective cracking, and the mechanical removal of existing KraftKoat coatings. To ensure proper adhesion for future applications, the contractor must profile the substrate using milling, grinding, or shot blasting to deliver a clean, sound surface free of contaminants. The opportunity is categorized under NAICS code 238110 and was posted on November 12, 2026. Interested parties must submit their responses by the deadline of December 3, 2026.

POSTED

DEADLINE

Concrete Curb and GutterThis subcontract opportunity involves the installation of concrete curbing and gutters for roadwork projects within Chesterfield County, Virginia. The selected contractor will be responsible for the complete process of forming, pouring, and finishing concrete curbs specifically to define cul-de-sac perimeters, ultimately delivering a fully installed curb and gutter system for prime contractors. The project falls under NAICS code 238110 and is associated with Chesterfield County. Interested parties should note that the solicitation was posted on November 12, 2026, with a response deadline set for December 10, 2026. Performance of the work will take place in Chesterfield, Virginia, zip code 23832.

POSTED

DEADLINE

Cast-In-Place Concrete InstallationThis subcontract for cast-in-place concrete installation involves providing specialized services for prime contractors on airfield projects located in Johnson County, Kansas. The scope of work encompasses the full installation process, including the placement of concrete material, forms, reinforcing material, and joint work, as well as the management of base aggregates and grading. All surface courses must be finished to a strict tolerance of 1/4 inch using a 12-foot straightedge to ensure the delivery of high-quality finished concrete pavement slabs. To ensure structural integrity and quality, all work must strictly adhere to ACI 301, 302, 305R, and 306R standards, along with ASTM C33, C94, C150, and C260 specifications. The opportunity was posted on November 12, 2026, with a response deadline of December 15, 2026. This project falls under NAICS code 238110 and is managed through the Johnson County government procurement system.

POSTED

DEADLINE

Concrete & MasonryThis subcontract opportunity with Atlanta Public Schools involves the installation of concrete foundations and masonry walls for various facility projects. The selected contractor will be responsible for pouring concrete and laying brick or block to deliver completed concrete slabs, foundations, and masonry walls while working under prime contractors. The solicitation was posted on November 12, 2026, with a response deadline of December 10, 2026. Classified under NAICS code 238110, this project is managed through the state of Georgia's procurement system for the benefit of the Atlanta Public Schools district.

Atlanta Public Schools

POSTED

about 15 hours ago

DEADLINE

in 28 days

AI Contract Overview

The contract entails the construction of a concrete transformer pad and the installation of a switch enclosure, requiring precise coordination between concrete work and electrical systems. The scope involves site preparation, pouring and curing of reinforced concrete to support transformer equipment, and the secure mounting of a switch enclosure, ensuring compliance with all safety and engineering standards. All materials and labor must meet specified quality benchmarks to guarantee long-term durability and operational reliability in a public utility environment. The project is issued as a subcontract under the NAICS code 238110, tied to the City of Riverside in California with a place of performance in ZIP code 92504. The solicitation was posted on July 29, 2026, and bids are due by August 27, 2026, with submissions handled through the BidAmerica platform. No set-aside provisions or specific organizational requirements are outlined, but bidders must demonstrate experience in both concrete construction and electrical infrastructure installations to be considered for award.