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

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Underground Utility and Manhole Construction

Closed

State & Local

Submission Closed08/11/2026, 12:00:00 AM UTC

Contract Overview

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

Active Opportunities Like This One

NAICS: 237117

Federal

Water Service Line InstallationThe contract is for the excavation, trenching, and installation of a water service line connecting the main water supply to a designated site, encompassing all necessary associated work including backfilling, compaction, pressure testing, and site restoration to meet required standards. The project is classified under NAICS code 237117 and is structured as a subcontract under a Total Small Business Set-Aside, restricted exclusively to small businesses as defined by the SBA. The work is to be performed in Mayetta, Kansas, with a ZIP code of 66509, and the contracting agency is the Indian Health Service within the Department of Health and Human Services. The solicitation was posted on July 7, 2026, and while no specific solicitation number is provided, the official opportunity can be accessed through the SAM.gov platform.

Indian Health Service

POSTED

DEADLINE

Underground Utilities Relocation/AdjustmentThe contract is a small business set-aside subcontract for the adjustment, relocation, or removal of underground utilities affected by construction activities, specifically involving PREPA and PRASA infrastructure. It falls under NAICS code 237117, which corresponds to aboveground and underground utility system construction, and is designated as a total small business set-aside under FAR 19.5, ensuring exclusive eligibility for small businesses. The work is coordinated under the Eastern Federal Lands Division of the Department of Transportation, with no specific place of performance designated in the data provided. The posting date indicates this opportunity was made available in June 2026, and while the solicitation number is not listed, interested parties can access further details through the provided SAM.gov link for submission and compliance information.

693C73 Eastern Federal Lands Division

POSTED

DEADLINE

Water Line ReplacementThe contract involves excavating and replacing a damaged potable water supply line, which includes necessary trenching, installation of new piping, backfilling the trench, and performing pressure testing to ensure system integrity. It is classified as a subcontract opportunity and is designated as a Total Small Business Set-Aside under the Small Business Administration guidelines, specifically referencing FAR 19.5. The work falls under the NAICS code 237117, related to utility system construction. This opportunity is posted by the Department of Agriculture, specifically under the Csa Intermountain 8 Usda-fs agency, with a posting date of May 13, 2026. Although specific location details and points of contact are not provided, the contract scope clearly emphasizes maintaining potable water infrastructure to ensure safe and reliable water supply. This project prioritizes small businesses, fostering participation from entities that meet the SBA set-aside criteria.

Csa Intermountain 8 Usda-fs

POSTED

DEADLINE

Utility Potholing and Underground Utility VerificationThe City of Paradise in California is seeking a subcontractor for a utility potholing and underground utility verification project. The scope of work involves performing up to 100 utility potholing operations to expose and verify the exact location of underground utilities along proposed alignments. This subcontract falls under NAICS code 237117 and is centered in Paradise, California. The project was posted on April 17, 2026, and focuses on critical infrastructure verification to support upcoming development or construction alignments.

POSTED

DEADLINE

Trenching and Underground Electrical Conduit InstallationThe contract involves excavation, trenching, and the installation of electrical conduits specifically for gate systems at the Grand Junction Field Office facility. It includes all related activities such as backfilling the trenches and restoring the site to its original condition upon completion of the conduit installation. The scope ensures that the underground electrical infrastructure is properly installed to support gate operations. This subcontract is managed by the Department of the Interior's Colorado State Office and falls under the NAICS code 237117, which covers site preparation contractors. The work is planned to take place in Grand Junction, Colorado, within the 81506 zip code area. The contract was posted on April 16, 2026, and while specific solicitation details and point of contact information are not provided, the contract is accessible through the federal procurement system.

Colorado State Office

POSTED

DEADLINE

Trenching and Underground Conduit InstallationThis subcontract for Trenching and Underground Conduit Installation is issued by Caltrans, District 11 in San Diego. The project requires the excavation and installation of 6 inch by 110 foot by 30 inch conduit to establish connectivity between the CMS, controller cabinet, and various camera locations. The work is categorized under NAICS code 237117 and will be performed within the city of San Diego. The solicitation was posted on December 19, 2025, and is managed by the state of California.

Caltrans, District 11 - San Diego

POSTED

DEADLINE

Utility Relocation or CoordinationThe City of Santa Cruz is seeking a subcontractor for a project focused on the coordination and potential relocation of underground and above-ground utilities. This work is necessary to accommodate modifications being made to bike lanes within Santa Cruz, California, specifically in the 95062 zip code area. Classified under NAICS code 237117, the contract involves managing utility infrastructure that may conflict with the planned bike lane improvements. The solicitation was posted on December 15, 2025, and is managed by the City of Santa Cruz in California.

POSTED

DEADLINE

Greenhouse Gas (GHG) Emissions Compliance SupportThe City of Milpitas in California is seeking a subcontractor for Greenhouse Gas Emissions Compliance Support. This project focuses on reducing GHG emissions through the integration of renewable energy and the implementation of comprehensive reporting measures. A primary physical component of the contract involves the installation of solar panels on parking structures within Milpitas, California. Classified under NAICS code 237117, the contract emphasizes sustainable infrastructure and environmental compliance. The initiative is designed to help the city meet its emissions targets by transitioning to cleaner energy sources and ensuring accurate tracking of its carbon footprint.

POSTED

DEADLINE

Underground Trenching and Utility InstallationThis subcontract involves the installation of underground utilities through trenching services for the University of California, Los Angeles. The scope of work focuses on the physical installation of utility lines, requiring strict coordination and adherence to environmental compliance standards to ensure the project meets all regulatory requirements. The project is categorized under NAICS code 237110 and will be performed in the 90045 zip code area. Posted on November 24, 2025, the contract is managed by the state of California and is linked to specific environmental quality assessments for the site.

University of California, Los Angeles

POSTED

DEADLINE

Gas Line Replacement – Utility ConstructionThe Jurupa Unified School District is seeking a subcontractor for a utility construction project involving the full replacement of the natural gas line at Jurupa Valley High School. The scope of work encompasses the entire replacement process, including the excavation of existing lines, removal of old piping, installation of new gas lines, and necessary pressure testing to ensure safety and compliance. Following the installation, the contractor will be responsible for backfilling and complete site restoration in Jurupa Valley, California. This project is categorized under NAICS code 237117 and was posted on November 24, 2025.

Jurupa Unified School District

POSTED

DEADLINE

Storm Sewer InstallationThis contract involves the installation of both temporary and permanent storm sewer systems as part of broader civil infrastructure work. It is categorized under NAICS code 237117, which pertains to utility system construction. The work is set to take place in Downers Grove, Illinois, with the project encompassing crucial stormwater management improvements necessary for the region. The contract was posted on November 21, 2025, and is issued by the Illinois Construction agency. It is a subcontract opportunity, though specific solicitation numbers and points of contact are not provided. The scope emphasizes the installation and integration of storm sewer systems, which will play a vital role in managing runoff and supporting local infrastructure resilience. Interested parties can access further details through the provided Illinois bid portal link.

POSTED

DEADLINE

Electrical Utility Trenching and Conduit InstallationThe San Bernardino City Unified School District in California is seeking a subcontractor for an electrical utility trenching and conduit installation project. The scope of work involves the excavation and trenching required to install underground electrical conduits that will provide power to all light poles, as well as the necessary backfilling and site restoration. This subcontract opportunity is categorized under NAICS code 237117 and is associated with a project located in the 92411 zip code. The solicitation was posted on November 19, 2025, and further project details can be accessed through the provided CEQAnet link.

San Bernardino City Unified School District

POSTED

11 months ago

DEADLINE

N/A

AI Contract Overview

The contract pertains to the excavation, construction, and restoration of manholes and underground utility vaults specifically for the steam system, located in Yountville, California, with a postal code of 94599. The work involves complete site preparation, including digging and earthmoving, followed by the installation of new infrastructure and the eventual restoration of the surrounding area to its original condition or as required by applicable standards. This is a subcontract opportunity under NAICS code 237117, which classifies it as other heavy and civil engineering construction, indicating the specialized nature of the civil infrastructure work involved. The deadline for submissions is August 11, 2026, and the solicitation was posted on July 30, 2026, with the contracting authority being the California Department of General Services, Real Estate Services Division, Project Management and Development Branch. All work must be performed at the specified location in Yountville, and bidders are expected to comply with all regulatory, safety, and restoration requirements associated with utility construction in an active steam system environment.