This Subcontract opportunity from California was posted on August 2, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Overexcavation and Compaction Services

Closed

State & Local

Submission Closed08/31/2026, 04:00:00 PM PDT

Contract Overview

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

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NAICS: 238990

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MAIN WASTEWATER TREATMENT PLANT SECONDARY REACTORS REHABILITATION,PHASE 2, SPECIFICATION SD-462

Solicitation # main-wastewater-treatment-plant-secondary-reactors-rehabilitationphase-2-specification-sd-462

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POSTED

DEADLINE

PURIFIED WATER REPLENISHMENT SAN JACINTO VALLEY ADVANCED WATER PURIFICATION FACILITY SPECIFICATION NO. 1472W

Solicitation # purified-water-replenishment-san-jacinto-valley-advanced-water-purification-facility-specification-0

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J.F. Shea Construction, Inc.

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DEADLINE

Bridge Joint Sealing InstallationThis subcontract for Bridge Joint Sealing Installation involves performing specialized sealing services for prime contractors on Georgia Department of Transportation maintenance projects located in Chatham County. The scope of work includes the removal of old joint sealant, cleaning and preparing joint gaps, and the installation of new sealing materials in strict accordance with GDOT routine maintenance standards to deliver fully sealed bridge joints. Eligible bidders must be GDOT prequalified contractors compliant with MMSA 48400-410-000021912 and must possess the necessary joint cleaning equipment, specifically air compressors and grinders. The solicitation was posted on November 9, 2026, with a response deadline of December 1, 2026, falling under NAICS code 238990.

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DEADLINE

Door Maintenance and Repair Services

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Irrigation System Installation and IntegrationThis subcontract for Irrigation System Installation and Integration involves the installation of a complete irrigation system at the Florida School for the Deaf and the Blind. The scope of work includes the installation of 10 to 14 zones, lines, valves, swing joints, and rotor heads featuring flush-mounted rubber covers. The contractor is responsible for ensuring a system capacity of 319 GPM, which includes performing all necessary pressure testing, flushing, and timer programming. To be eligible, the contractor must hold a valid Florida State Contractor License in Irrigation or a related specialty. Final deliverables for the project include a fully pressure-tested system, a detailed as-built zone map, and a comprehensive programming schedule. The response deadline for this opportunity is November 24, 2026.

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Wall-to-Deck SealingThis subcontract for the Wilkinson County School District involves wall-to-deck sealing services to maintain building envelope integrity at Wilkinson County High School. The selected contractor will be responsible for performing field verification of existing conditions and applying the necessary sealants or flashing to secure wall-to-deck junctions. The project is categorized under NAICS code 238990 and was posted on November 9, 2026, with a response deadline of November 12, 2026. The primary objective is the delivery of fully sealed junctions to ensure the structural weatherproofing of the facility.

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Exterior Painting and Downspout ModificationThis subcontract for the Wilkinson County School District involves specialized exterior modifications and painting services for projects at Wilkinson County High School. The scope of work requires the contractor to modify exterior downspouts to accommodate new conduit and to perform comprehensive surface preparation, priming, and painting of new conduit, pull boxes, and anchorage. All painted components must be color-matched to the existing brickwork to ensure a seamless aesthetic integration. The project is categorized under NAICS code 238990 and is managed through the state of Georgia. The contract was posted on November 9, 2026, with a response deadline of November 12, 2026. The selected contractor will be responsible for the delivery of all modified downspouts and finished painted components to the prime contractors on site.

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Exhibition Fit-out and FabricationThis subcontract for Exhibition Fit-out and Fabrication involves the physical construction and installation of exhibition elements for the Science Museum Group at the National Railway Museum. The scope of work includes the fabrication of custom exhibition furniture, display plinths, structural elements, and signage within the Great Hall, utilizing materials such as custom cabinetry, acrylics, and metal framing to deliver a fully installed exhibition. The contractor must strictly adhere to museum conservation standards regarding artifact handling and maintain rigorous health and safety protocols for public spaces. Interested parties must respond by December 10, 2026, for this project categorized under NAICS code 238990.

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Ancillary Outdoor Structure Supplier/InstallerThis subcontract opportunity is for an Ancillary Outdoor Structure Supplier and Installer to provide services for prime contractors working on Education Authority school projects across Northern Ireland. The scope of work involves the supply and assembly of various utility and storage structures, including polytunnels, timber sheds, greenhouses, storage containers, and cycle shelters. These installations must be constructed using specified materials such as polyethylene sheeting, treated timber, and galvanized steel, while strictly adhering to all standard building and safety codes for ancillary structures. The contract was posted on November 9, 2026, with a response deadline of December 7, 2026. Falling under NAICS code 238990, the project focuses on the delivery and full installation of these outdoor facilities to support educational environments. Interested parties should refer to the Education Authority's procurement guidelines to ensure all technical and safety requirements are met for the successful delivery of these structures.

the Education Authority

POSTED

DEADLINE

Bespoke Outdoor Structure Builder (Carpentry/Fabrication)This subcontract opportunity is for a Bespoke Outdoor Structure Builder to design and construct open-air educational environments for prime contractors working on Education Authority school projects across Northern Ireland. The scope of work involves the fabrication of timber gazebos, canopies, and other outdoor learning spaces. These structures must be built without windows or utilities, utilizing heavy-duty timber and weather-resistant roofing materials that adhere to all applicable structural safety standards for outdoor timber buildings. The project is categorized under NAICS code 238990 and is managed through the Education Authority. Interested parties must submit their responses by the deadline of December 7, 2026, at 15:00. The successful contractor will be responsible for the full delivery of completed, custom-built outdoor learning structures tailored to the specific needs of the educational sites.

the Education Authority

POSTED

about 10 hours ago

DEADLINE

in 28 days

AI Contract Overview

The City of San Buenaventura is seeking a subcontractor for overexcavation and compaction services located in Ventura, California. The scope of work requires the overexcavation of expansive soils to a minimum depth of 21 inches, followed by replacement with suitable fill. Technical specifications mandate that soils be premixed to 120 to 130 percent of optimum moisture content and compacted to 90 percent relative compaction in accordance with Modified Proctor ASTM D1557 standards. Interested parties must submit their responses by August 31, 2026.

General Info

Subcontractor needed for soil overexcavation and compaction in Ventura, California by August 2026.

Agency

California → City of San Buenaventura

NAICS

238990 - All Other Specialty Trade Contractors

Place of Performance

Ventura, CA, 93001, USA

Set-Aside

NONE

Documents

This scope was carved out of 2024-D-041.

The full solicitation package (4 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Request For Proposals To Provide Construction Management Services For The Santa Paula Branch Line - Rails With Trails Project

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Timeline

PhaseClosed

PostedAug 2

subcontract

Response DeadlineAug 31

Deadline has passed

Submission Closed

08/31/2026, 04:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → City of San Buenaventura

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → City of San Buenaventura

Office AddressN/A

ContactsNo contact information available

Full Description

Overexcavate expansive soils to a minimum depth of 21 inches, replace with suitable fill, and compact to 90% relative compaction (Modified Proctor, ASTM D1557), premixing soils to 120–130% of optimum moisture content.