This Subcontract opportunity from California was posted on October 12, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Segmental Concrete Retaining Wall Installation

Closed

State & Local

Submission Closed11/05/2026, 02:00:00 PM PST

Contract Overview

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

Active Opportunities Like This One

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 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.

POSTED

DEADLINE

Solicitation # 261123-hanska-mn

Caldwell Tanks, Inc. is seeking subcontracting partners for a water tank construction 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 is categorized under NAICS 238110. Interested parties must submit their responses by the deadline of November 20, 2026. 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. As a covered federal contractor, Caldwell Tanks, Inc. maintains strict compliance with affirmative action efforts for protected veterans and individuals with disabilities in accordance with 41 C.F.R. and the Rehabilitation Act of 1973. Primary coordination for this solicitation is managed by 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 project involves several specialized scopes of work, including site work under NAICS 238910, tank painting under NAICS 238320, and electrical work under NAICS 238210. This solicitation is specifically set aside for small businesses, including SAM.gov designated Small Disadvantaged Businesses and Department of Transportation Disadvantaged Business Enterprises. Interested parties must respond by November 13, 2026. Primary coordination for this opportunity is managed by Eric Koetter.

POSTED

DEADLINE

Sidewalk ConstructionThis subcontract opportunity involves providing concrete sidewalk construction services for prime contractors working on City of Daytona Beach projects under the Public Works agency. The scope of work includes grading, forming, pouring, and finishing concrete sidewalks in strict accordance with project plans and FDOT standard specifications, concluding with the delivery of the completed infrastructure. The solicitation is categorized under NAICS code 238110 and was posted on November 11, 2026. Interested parties must submit their responses by the deadline of December 15, 2026.

POSTED

DEADLINE

Potable Water Well Pumping EquipmentThis subcontract involves the furnishing and installation of potable water well pumping equipment for prime contractors working on water well rehabilitation projects for the City of Sugar Land. The scope of work includes the installation of vertical turbine pumps, 12 inch diameter steel pump columns, C1045 steel line shafts, and Schedule 80 steel shaft enclosing tubes, with pumps set at a depth of 470 feet. The final deliverable is a fully operational potable water well pumping system. All work must be performed in strict compliance with industry standards, including AWWA A100, AWWA C654, AWWA E101, ANSI B58.1-1961, and NSF/ANSI 61. This project falls under NAICS code 238110 and is managed through the Engineering agency in Texas. The response deadline for this opportunity is December 3, 2026.

POSTED

DEADLINE

Structural Concrete and Utility ConcreteThis subcontract for Structural Concrete and Utility Concrete involves the supply and installation of concrete for prime contractors working on water distribution projects for the City of Sugar Land. The scope of work includes forming and pouring concrete for utility structures, applying rubbed finishes to exposed surfaces, and installing adjustment rings and precast concrete manhole sections. All work must be completed using ready-mixed concrete meeting ASTM C 94 standards or volumetric batching per ASTM C 685, with the final delivery including repaired pavement and finished concrete structures. Managed by the Engineering agency in Texas under NAICS code 238110, the solicitation was posted on November 11, 2026. Interested parties must submit their responses by the deadline of January 21, 2027.

POSTED

DEADLINE

Concrete Sidewalk ConstructionThis subcontract opportunity involves the installation of concrete sidewalks for prime contractors working on roadway projects within the City of Edinburg. The selected contractor will be responsible for the complete process of grading, forming, and pouring ready-mix concrete, ensuring all work strictly adheres to the specifications outlined in the City of Edinburg Standards Manual. The project falls under NAICS code 238110 and is managed by the Engineering agency in Texas. Interested parties must submit their responses by the deadline of December 1, 2026.

POSTED

DEADLINE

Concrete Median and Riprap InstallationThis subcontract involves the construction of raised concrete medians and the installation of concrete riprap for prime contractors working on City of Edinburg roadway projects. Specifically, the scope of work includes building a raised concrete median along Closner Boulevard and implementing concrete riprap structures to ensure proper drainage and erosion control. All work must be executed using concrete forms and ready-mix concrete in strict accordance with the TxDOT 2024 Standard Specifications and the City of Edinburg Standards Manual. The project is managed under the Engineering agency in Texas and falls under NAICS code 238110. Interested parties must submit their responses by the deadline of December 1, 2026. The final deliverables for this contract are the fully installed concrete medians and riprap structures as specified in the project requirements.

POSTED

DEADLINE

Fire Protection Sprinkler System

Massachusetts Port Authority (Massport)

POSTED

DEADLINE

Cement Spalling Repair and Masonry Restoration

POSTED

DEADLINE

Concrete Reinforcement Supplier/Installer

POSTED

DEADLINE

Decorative Stamped Concrete Contractor

Town of Foxborough

POSTED

about 18 hours ago

DEADLINE

in 13 days

AI Contract Overview

This subcontract opportunity involves the installation of segmental concrete retaining systems for prime contractors working on California Department of Transportation highway projects. The selected provider will be responsible for installing precast and segmental concrete blocks to create retaining structures that strictly adhere to Standard Specifications and Revised Standard Plans, ensuring the delivery of a fully completed system. The project is located in Sonoma, California, under NAICS code 238110. Interested parties must submit their responses by the deadline of November 5, 2026.

General Info

Install segmental concrete retaining systems for Caltrans highway projects in Sonoma by November 2026.

Agency

California Department of Transportation

NAICS

238110 - Poured Concrete Foundation and Structure Contractors

Place of Performance

Sonoma, CA, 95476, USA

Set-Aside

NONE

Documents

This scope was carved out of 04-3Y7104.

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

View the prime solicitation

Construction On State Highway In Sonoma County Near Boyes Hot Springs From Donald Street To 0.1 Mile South Of Lomita Avenue

AI Contract Breakdown

Uniform Contract Format

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Timeline

PhaseClosed

PostedOct 12

subcontract

Response DeadlineNov 5

Deadline has passed

Submission Closed

11/05/2026, 02:00:00 PM PST

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Organization & Contact Information

AgencyCalifornia Department of Transportation

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia Department of Transportation

Office AddressN/A

ContactsNo contact information available

Full Description

Installs segmental concrete retaining systems for prime contractors on Caltrans highway projects. Installs precast/segmental concrete blocks to form retaining structures in adherence to Standard Specifications and Revised Standard Plans (RSPs). Delivers completed segmental concrete retaining system.