This Subcontract opportunity from Department Of The Interior was posted on August 28, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

Top

Underground Utility and Site Preparation

Closed

Federal

Submission Closed09/10/2026, 01:00:00 PM MDT

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 the City of Lynchburg CSO 70 Sewer Improvements project in Virginia, identified by solicitation number 2027-027. This opportunity is open to various small business set-asides, including SBA certified 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 comprehensive sanitary sewer system improvements utilizing both open-cut and trenchless installation methods. Key deliverables include the installation of PVC piping ranging from 6 to 30 inches and DIP piping in 18 and 24-inch diameters, as well as the construction of standard and doghouse manholes, interior drop assemblies, and a CSO regulator fit out with outfall construction. Additional requirements include 24-inch diameter trenchless crossings with associated launch and receiving shafts, maintenance of flows and bypass operations, and site restoration activities such as SWPPP implementation, clearing, grubbing, and seeding. Specialized requirements include geotechnical instrumentation and monitoring and the procurement of railroad insurance.

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., 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 modernizing the existing facility in California by replacing its 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 (RP-5) Offsite Facilities and Butterfield Lift Station project, located in Chino, California, involves the comprehensive furnishing, installation, commissioning, and startup of critical water infrastructure. Managed by Norstar Plumbing and Engineering, Inc. for the Inland Empire Utilities Agency, the scope of work is divided into four major categories: the Butterfield Dual Force Main, the Mountain Avenue Lift Station, the RP-2 Lift Station, and the Butterfield Lift Station. The project requires a full suite of materials, labor, and equipment to ensure a fully functional delivery in accordance with the provided bid documents. Key deliverables for this effort include AC paving, trucking, saw cutting, traffic control, jack and bore operations, SWPPP management, pipes and fittings, demolition, and preconstruction video services. This solicitation is designated for SBA certified HUBZone Small Businesses and Disadvantaged Business Enterprises (DBE) under NAICS code 237110. Bids are due by November 19, 2026, at 2:00 PM. Primary points of contact for the project are Nathan Plummer and Destiny Plummer.

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 involves various construction and supply scopes, including electrical work, paving, and the supply of aggregate and piping. The solicitation is set aside for SBA certified Women-Owned Small Businesses and Disadvantaged Business Enterprises. All participating subcontractors must hold valid California contractor licenses and be registered with the California Department of Industrial Relations in accordance with Public Contract Code Section I725.5. The project is subject to a Project Labor Agreement and requires strict adherence to FD insurance requirements. Bidders may be required to provide payment and performance bonds equal to 100 percent of the contract value, with bond premium reimbursements available up to 3 percent. Quotes must be submitted via email or fax to the primary point of contact, Veronica Garcia, by the deadline of December 3, 2026, and must remain valid for 120 days from the bid due date.

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 issued by Cushman Contracting Corporation for work located in San Miguel, San Luis Obispo, California. The project is owned by the San Miguel Community Service District and is categorized under the EJCDC C-111 contract format. This initiative falls under NAICS code 237110, focusing on water and sewer system construction. Interested parties must submit their responses by the deadline of November 20, 2026. The solicitation was officially posted on November 10, 2026. For further inquiries or coordination, the primary point of contact is Melia Raj, who can be reached via email or phone.

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 electrical and SCADA systems, yard piping, and general sitework. 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 must submit their responses by November 24, 2026. Primary inquiries and submissions should be directed to Michael Demissie via the estimating department 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.

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 solicitation covers a wide range of construction scopes, including aggregate, electrical, paving, concrete, landscape and seeding, construction survey, testing and inspection, traffic control, metal fabrications, industrial coatings, and rough carpentry. Bidders must adhere to AIS and Montana CGR requirements and comply with Prevailing or Davis Bacon Wage standards. The response deadline for this solicitation is November 19, 2026. This opportunity is specifically open to small businesses, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. Prospect Construction, Inc. strongly encourages submissions from SBEs and DBEs, noting a willingness to divide contracts among multiple firms if the project scale exceeds the capacity of a single entity.

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, Alameda, California. Managed by Anderson Pacific Engineering Construction, Inc. for the East Bay Municipal Utility District under contract number SD-462, the work falls under NAICS code 237110. 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. The solicitation was posted on November 10, 2026, with a response deadline of November 18, 2026. Interested parties should coordinate with the Estimating Department for further details.

Anderson Pacific Engineering Construction, Inc.

POSTED

DEADLINE

Long Prairie MN Water Treatment Plant Rehab

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

CC Steel LLC is soliciting subcontractors and material suppliers for the Long Prairie MN Water Treatment Plant Rehab project located in Minnesota. This comprehensive rehabilitation effort spans numerous construction divisions, including concrete, metals, rough carpentry, thermal and moisture protection, and various finishing work. The scope also encompasses specialized installations such as plumbing, HVAC, electrical systems, and process interconnections, with a heavy focus on water and wastewater equipment including chlorination, fluoridation, and corrosion inhibitor feed systems. This solicitation is specifically set aside for small businesses, including certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. Interested parties must respond by November 16, 2026. The primary point of contact for this opportunity is Pete Aldritt, and the project involves a wide array of NAICS codes ranging from general building construction to specialized chemical feed equipment manufacturing.

POSTED

DEADLINE

Chiquola and Clatworthy Subbasing Sewer Rehab Ph. 3- Town of Honea Path, SC

Solicitation # chiquola-clatworthy-subbasing-sewer-rehab-ph-3-town-honea-path-sc

North American Pipeline Management, LLC is seeking Disadvantaged Business Enterprise subcontractors for the Chiquola and Clatworthy Subbasin Sewer Rehab Phase 3 project located in Honea Path, South Carolina. The project involves a variety of specialized scopes, including trucking and hauling, traffic control, clearing and grubbing, CCTV services, manhole rehabilitation, CIPP, surveying, and erosion control. The bid deadline for this solicitation is November 24, 2026, at 2 PM, with a response deadline for interested parties set for November 19, 2026. This opportunity is specifically set aside for certified entities such as SBA Women-Owned Small Businesses, SAM.gov Small Disadvantaged Businesses, and Department of Transportation Disadvantaged Business Enterprises. Contract documents and plans are available for review through the primary point of contact, Bryce Yarbrough.

North American Pipeline Management, LLC

POSTED

about 4 hours ago

DEADLINE

in 9 days

AI Contract Overview

This subcontract opportunity, managed by the Department of the Interior under the Imr Northern ROCKIES office, involves site preparation and underground utility modifications for National Park Service wastewater treatment facility projects. The selected contractor will be responsible for executing excavation, pouring concrete pads, and installing underground piping or conduits to connect systems to headworks. These tasks require the use of excavators and industrial piping to deliver a fully prepared installation site with connected utilities. Qualified bidders must demonstrate proven experience in underground utility installation. The project falls under NAICS code 237110. Interested parties should note that the solicitation was posted on August 28, 2026, with a response deadline set for September 10, 2026.

General Info

DOI subcontract for NPS wastewater site preparation and underground utility installation projects.

Agency

Department Of The Interior → Imr Northern ROCKIES(12200)

NAICS

237110 - Water and Sewer Line and Related Structures Construction

Place of Performance

Set-Aside

NONE

Documents

This scope was carved out of 140P1426R0034.

The full solicitation package (1 document), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Z--New Vertical Micro Screen/Strainer Screw Compactors

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PhaseClosed

PostedAug 28

subcontract

Response DeadlineSep 10

Deadline has passed

Submission Closed

09/10/2026, 01:00:00 PM MDT

Find active opportunities like this

Get full access to discover similar active contracts, track opportunities, and build proposals with AI assistance.

Organization & Contact Information

AgencyDepartment Of The Interior → Imr Northern ROCKIES(12200)

ContactsNo contacts available

OfficeN/A

Organization / AgencyDepartment Of The Interior → Imr Northern ROCKIES(12200)

Office AddressN/A

ContactsNo contact information available

Full Description

Performs site preparation and underground utility modifications for prime contractors on National Park Service wastewater treatment facility projects. Executes excavation, concrete pad pouring, and installation of underground piping or conduits to connect systems to headworks using excavators and industrial piping. Requires demonstrated experience with underground utility installation. Delivers prepared installation site and connected underground utilities.