This Subcontract opportunity from Connecticut was posted on July 30, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Top

Drainage Structures and Manholes

Closed

State & Local

Submission Closed08/25/2026, 10:00:00 AM EDT

Contract Overview

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

Active Opportunities Like This One

NAICS: 237110

New

26350 Lynchburg, VA - CSO 70 Sewer Improvements

Solicitation # 2027-027

Cleary Construction is soliciting quotations from certified Disadvantaged Business Enterprises (DBEs) for labor, materials, and services for the City of Lynchburg CSO 70 Sewer Improvements project in Virginia. This solicitation, identified as number 2027-027, is open to various SBA-certified small business categories, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. Interested firms must submit their responses by December 4, 2026. The scope of work involves extensive sanitary sewer infrastructure improvements, including the open-cut installation of PVC and Ductile Iron Pipe ranging from 6 to 30 inches in diameter, as well as 24-inch diameter trenchless crossings with associated launch and receiving shafts. Additional requirements include the installation of standard and doghouse manholes, interior drop assemblies, a CSO regulator fit out, and an outfall. Site preparation tasks involve clearing and grubbing over 5,100 square yards of wooded areas, seeding, fine grading, and select tree removal. Critical project deliverables include the implementation and maintenance of a Stormwater Pollution Prevention Plan (SWPPP), geotechnical instrumentation and monitoring, and the continuous maintenance of flows and bypass during construction. Special requirements for this contract include the procurement of railroad insurance. The project involves significant excavation, with specific provisions for extra depth excavation between 4 and 10 feet, as well as depths exceeding 10 feet.

Cleary Construction, Inc.

POSTED

DEADLINE

Wellhead Treatment Improvement PS102A

Solicitation # wellhead-treatment-improvement-ps102a

The City of Fresno is seeking proposals for the Wellhead Treatment Improvement PS102A project located in Fresno, California. This solicitation, managed by W.M. Lyles Co. under contract number 12700259, falls under NAICS code 237110 for heavy and civil engineering construction. Interested parties must submit their responses by the deadline of November 17, 2026. This opportunity is specifically set aside for small businesses, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, and Women-Owned Small Businesses, as well as SAM.gov designated Small Disadvantaged Businesses. Primary inquiries and submissions should be directed to Scott Fults via the provided contact information.

POSTED

DEADLINE

Machado Wastewater Treatment Facility (WWTF) Upgrade and Expansion

Solicitation # machado-wastewater-treatment-facility-wwtf-upgrade-expansion

The Machado Wastewater Treatment Facility Upgrade and Expansion project involves the modernization of an existing facility in California. The primary scope of work includes replacing the current pond-based process with a membrane bioreactor system. A critical requirement of the contract is the maintenance of continuous treatment operations throughout the construction, commissioning, testing, and final acceptance phases. This solicitation is issued by Specialty Construction, Inc. and is specifically set aside for small businesses under NAICS code 237110. Interested parties must submit their responses by the deadline of December 4, 2026. Primary points of contact for the bidding process are Tom Seidel and Sheri Shambli.

Specialty Construction, Inc.

POSTED

DEADLINE

IEUA Regional Water Recycling Plant No. 5(RP5) Offsite Facilities and Butterfield Lift Station

Solicitation # ieua-regional-water-recycling-plant-no-5rp5-offsite-facilities-butterfield-lift-station

The IEUA Regional Water Recycling Plant No. 5 (RP5) Offsite Facilities and Butterfield Lift Station project involves the provision of all materials, labor, tools, equipment, and transportation necessary to install, commission, and deliver a fully functional infrastructure system in Chino, California. Managed by Norstar Plumbing and Engineering, Inc. for the Inland Empire Utilities Agency, the scope of work is centered on four major components: the Butterfield Dual Force Main, the Mountain Avenue Lift Station, the RP-2 Lift Station, and the Butterfield Lift Station. The project requires a wide array of construction and specialty services, including AC paving, jack and bore operations, cold planing, trucking, and the installation of pipes and fittings. Additional site requirements encompass traffic control, demolition, potholing, welding, survey traffic markings, and preconstruction video services. This solicitation is specifically targeting certified HUBZone Small Business and Disadvantaged Business Enterprise (DBE) partners, as well as other certified minority, women, and small business entities. Bids for the project are due by November 19, 2026, at 2:00 PM.

Norstar Plumbing and Engineering, Inc

POSTED

DEADLINE

Alvarado Trunk Sewer Ph IV and Water Main Relocations Bid Package A, Contract K-27-2470-DBB-3-C

Solicitation # K-27-2470-DBB-3-C

Flatiron Dragados Constructors, Inc. is soliciting bids for the Alvarado Trunk Sewer Ph IV and Water Main Relocations Bid Package A, Project No. K-27-2470-DBB-3-C, for the City of San Diego. This CASRF and EPA funded project is located in California and seeks quotes from subcontractors and suppliers for a wide range of scopes, including aggregate and pipe supply, asphalt paving, electrical work, minor concrete, surveying, and landscaping. The solicitation is set aside for SBA certified Women-Owned Small Businesses and encourages Disadvantaged Business Enterprise participation. Bids must be submitted via email or fax by December 3, 2026, and must remain valid for 120 days. All subcontractors are required to hold a valid California contractor license and be registered with the California Department of Industrial Relations. The project is subject to a Project Labor Agreement and requires compliance with specific insurance standards. Additionally, the contractor reserves the right to require payment and performance bonds equal to 100 percent of the contract value, with bond premium reimbursements available up to 3 percent.

Flatiron Dragados Constructors, Inc.

POSTED

DEADLINE

Machado WWTF Upgrade and Expansion

Solicitation # machado-wwtf-upgrade-expansion

The Machado WWTF Upgrade and Expansion project is a solicitation for construction services located in San Miguel, San Luis Obispo, California. Managed by the San Miguel Community Service District under contract number EJCDC C-111, the project focuses on the upgrade and expansion of the Machado Wastewater Treatment Facility. The solicitation is being handled by Cushman Contracting Corporation, with Melia Raj serving as the primary point of contact. This opportunity falls under NAICS code 237110 for water and sewer line construction. Interested parties must submit their responses by the deadline of November 20, 2026. The project is open for bids, and further details regarding the scope of work and submission requirements can be accessed through the provided procurement links.

Cushman Contracting Corporation

POSTED

DEADLINE

NTUA - Tuba City WWTP Improvements (NTUA-2026), Tuba City, AZ

Solicitation # ntua-tuba-city-wwtp-improvements-ntua-2026-tuba-city-az

GSE Construction Co., Inc. is soliciting quotes from subcontractors and suppliers for the NTUA Tuba City WWTP Improvements project in Tuba City, Arizona. The scope of work is extensive, encompassing the construction of headworks, an influent pump station, aeration basins, blower and dewatering buildings, UV disinfection, and an administration building. Additionally, the project requires expertise in electrical and SCADA systems, yard piping, and general sitework. This opportunity is specifically set aside for SBA certified Women-Owned Small Businesses, SAM.gov designated Small Disadvantaged Businesses, and Department of Transportation Disadvantaged Business Enterprises. Interested parties must submit their responses by November 24, 2026. Primary inquiries and submissions should be directed to Michael Demissie at GSE Construction Co., Inc.

GSE Construction Co., Inc.

POSTED

DEADLINE

City of Redlands - Wastewater Treatment Plant Upgrades Phase 2 (521006), Redlands, CA

Solicitation # city-redlands-wastewater-treatment-plant-upgrades-phase-2-521006-redlands-ca

GSE Construction Co., Inc. is soliciting quotes from subcontractors and suppliers for the City of Redlands Wastewater Treatment Plant Upgrades Phase 2, project number 521006, located in Redlands, California. The scope of work encompasses a wide range of specialized needs, including headworks washers, aeration blowers, diffusers, MLR pumps, precast MCC buildings, electrical systems, PLC/SCADA, yard piping, and site civil work. This solicitation is specifically set aside for SBA certified Women-Owned Small Businesses, SAM.gov designated Small Disadvantaged Businesses, and Department of Transportation Disadvantaged Business Enterprises. Interested parties should coordinate with Michael Demissie for submission details before the response deadline of November 12, 2026.

GSE Construction Co., Inc.

POSTED

DEADLINE

BOZEMAN WATER RECLAMATION FACILITY PHASE 1 IMPROVEMENTS

Solicitation # bozeman-water-reclamation-facility-phase-1-improvements

Prospect Construction, Inc. is seeking pricing for the Bozeman Water Reclamation Facility Phase 1 Improvements project located in Montana. The scope of work is extensive, covering various trades including aggregate, electrical, paving, concrete, landscape and seeding, construction survey, testing and inspection, traffic control, metal fabrications, industrial coatings, and rough carpentry. Bidders must comply with AIS, Montana CGR, and Prevailing or Davis Bacon Wage requirements. This solicitation is open to a wide range of small business entities, including VOSB, SDVOSB, WOSB, and HUBZone certified firms. The agency strongly encourages submissions from SBEs and DBEs, noting a willingness to split contracts among multiple firms if the project size exceeds the capacity of a single entity. Interested parties must submit their pricing by November 19, 2026.

PROSPECT CONTSTRUCTION, INC.

POSTED

DEADLINE

MWWTP Secondary Reactors Rehabilitation, Phase 2

Solicitation # mwwtp-secondary-reactors-rehabilitation-phase-2-0

The MWWTP Secondary Reactors Rehabilitation, Phase 2 project is a solicitation for construction services located in Oakland, California, for the East Bay Municipal Utility District. Managed by Anderson Pacific Engineering Construction, Inc. under contract number SD-462, the work falls under NAICS code 237110. Interested parties must submit their responses by the deadline of November 18, 2026. This opportunity is specifically set aside for small businesses, including SBA certified Women-Owned Small Businesses, SAM.gov designated Small Disadvantaged Businesses, and Department of Transportation Disadvantaged Business Enterprises. Inquiries and submissions should be directed to the Estimating Department at Anderson Pacific Engineering Construction, Inc.

Anderson Pacific Engineering Construction, Inc.

POSTED

DEADLINE

Pump Station 2 Improvements and Modernization

Solicitation # pump-station-2-improvements-modernization

POSTED

DEADLINE

Long Prairie MN Water Treatment Plant Rehab

Solicitation # long-prairie-mn-water-treatment-plant-rehab

CC Steel LLC is soliciting bids from subcontractors and material suppliers for the Long Prairie MN Water Treatment Plant Rehab project in Minnesota. This comprehensive rehabilitation effort spans numerous construction divisions, including concrete, metals, rough carpentry, thermal and moisture protection, openings, and interior finishes. The scope also encompasses specialized installations such as flexible horizontal lifeline fall protection, fiberglass reinforced plastic enclosures, plumbing, HVAC dehumidifiers, and general electrical work including motors and starters. The project further requires expertise in exterior improvements for roads, walks, and curbs, as well as complex process interconnections involving water valves, piping, gauges, and instrumentation. Specific water and wastewater equipment needs include chemical feed, chlorination, fluoridation, and corrosion inhibitor systems, along with filter media and gravel. This solicitation is set aside for various small business categories, including VOSB, SDVOSB, WOSB, and HUBZone certified firms, with a response deadline of November 16, 2026.

CC Steel LLC

POSTED

about 4 hours ago

DEADLINE

in 4 days

AI Contract Overview

This subcontract opportunity, managed by DAS Procurement for the state of Connecticut, involves the installation of drainage structures and manholes designed to support stormwater and site infrastructure. The project falls under NAICS code 237110, focusing on heavy and civil engineering construction. The solicitation was posted on July 30, 2026, and requires responses to be submitted by the deadline of August 25, 2026, at 2:00 PM. Interested parties can find further details and submission guidelines through the CTSource Bid Board portal.