This Subcontract opportunity from California was posted on September 18, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Earthwork & Utility Trenching

Closed

State & Local

Submission Closed10/08/2026, 05:00:00 PM PDT

Contract Overview

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

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NAICS: 237990

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ALTA, RIVERVIEW, AND KINGS CANYON HIGH WELL DRILLING PHASE

Solicitation # alta-riverview-kings-canyon-high-well-drilling-phase

The Alta, Riverview, and Kings Canyon High Well Drilling Phase project, identified as Project No. 1000316-001C, is a solicitation issued for the Kings Canyon Unified School District. The scope of work involves well drilling operations located across Reedley, Parlier, Dinuba, and Fresno, California. This project falls under NAICS code 237990 and is managed through Anthony J. Prieto Water Well Drilling, Inc. This opportunity is specifically set aside for small businesses, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. The solicitation was posted on November 5, 2026, with a response deadline of November 10, 2026. Interested parties may contact Jennah Castagna for further information regarding the bidding process.

Anthony J. Prieto Water Well Drilling, Inc.

POSTED

DEADLINE

Site Compliance and Improvements - Patton Landing

Solicitation # site-compliance-improvements-patton-landing

The State of California Department of General Services is seeking bids for the Site Compliance and Improvements project at Patton Landing, located in Carnelian Bay, Placer County, California. Identified by Project Number 13891 and Event ID 0000040533, this solicitation focuses on site compliance and infrastructure enhancements under NAICS code 237990. This opportunity is specifically set aside for SBA certified Service-Disabled Veteran Owned Small Businesses and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 10, 2026. Primary coordination for this project is managed through Nayvi Waite at Resource Development Company LLC.

Resource Development Company LLC

POSTED

DEADLINE

ADVANCE NOTICE: Rail Modernization Program

Solicitation # WMATA-0000010871

The Washington Metropolitan Area Transit Authority has issued an advance notice for the Rail Modernization Program under solicitation number WMATA-0000010871. This solicitation is categorized under NAICS code 237990, which pertains to other heavy and civil engineering construction, indicating a focus on significant infrastructure improvements for the rail system. Interested parties have until September 30, 2027, to submit their responses. The procurement process is being managed through the agency's supplier portal, and the project is associated with the organization's operations within Virginia.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

Solicitation # CP25014

The Lake Charles Harbor and Terminal District is soliciting bids for Project CP25014, which involves heavy construction port improvements for the Industrial Park East Rail Extension and Trans-loading Yard in Calcasieu Parish, Louisiana. The scope of work requires the contractor to provide all labor, materials, and equipment to complete construction items including drainage excavation, structural fill embankment, lime treatment, Class II base course installation, barbed wire fencing, and hydroseeding. The project is governed by the Louisiana Standard Specifications for Roads and Bridges 2026 Edition, with an engineer's estimate of $5,856,000 for the base bid. Bids are due by November 16, 2026, and will be evaluated based on the summation of quantities multiplied by unit bid prices. Contractors must adhere to strict material handling and hazard communication standards, including the provision of MSDS and proper labeling of chemicals and explosives. The contract requires performance and payment bonds from an approved surety with at least an A- rating. Financial terms include a retainage of 5% for contracts exceeding $500,000. Performance will be monitored through inspection, sampling, and testing conducted by the contracting agency, with specific quality standards for earthwork density and pavement roughness. The contract period begins upon the issuance of a Notice to Proceed and concludes upon final inspection and acceptance by the District.

POSTED

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Solicitation # 46108-C

The Cayuga Inlet Flood Risk Reduction and Restoration project, identified as solicitation 46108-C, is a unit price construction contract issued by the New York State Department of Environmental Conservation and the Office of General Services. Located at 900 Taber Street in Ithaca, New York, the project has an estimated value between 23 million and 24 million dollars. The scope of work encompasses comprehensive site preparation, earthwork, and hydraulic dredging operations, including the management of filtrate from geotextile tube dewatering and the off-site disposal of organic and construction debris. Key deliverables include pre-construction bathymetric and topographic surveys, a Marine Traffic Control Plan, and detailed subsurface investigation reports. Bids are due by December 9, 2026, and must be submitted via Bid Express or as sealed paper bids to the Office of General Services in Albany. The contract will be awarded to the apparent low bidder based on responsiveness and responsibility, with evaluations focusing on project understanding, financial data, and past performance. Required bid security is 599,200 dollars, and the successful contractor must provide performance and labor and material bonds for 100 percent of the contract price. The project mandates compliance with New York State prevailing wage schedules, the Americans with Disabilities Act, and specific environmental standards, including the use of a qualified geotechnical testing laboratory for material conformance.

NYS OGS Design & Construction - Construction Contractors

POSTED

DEADLINE

Freedom Park Boardwalk Repairs - Boardwalks 1 & 2

Solicitation # 26-8700

Solicitation 26-8700 is an Invitation to Bid issued by the Collier County Board of County Commissioners for the repair and restoration of Boardwalks 1 and 2 at Fred W. Coyle Freedom Park in Naples, Florida. The project has an anticipated budget of 1,300,000 dollars and a performance timeline of 134 calendar days from the Notice to Proceed. The scope of work includes replacing deteriorated decking, structural supporting timber, fasteners, and hardware, as well as replacing damaged pilings and support beams. Specific technical requirements include the use of IPE Wood, Class IV concrete, and the installation of structural integral pile jackets and floating turbidity barriers in compliance with FDOT and ASCE standards. The contract will be awarded to the lowest responsive and responsible bidder. Bidders must provide a 5% bid bond and, upon award, furnish payment and performance bonds for 100% of the contract amount. Key submission requirements include a completed bid schedule, five project references from the last five years, a valid State of Florida General or Building Contractor license, and E-Verify documentation. The project includes an Owner's Allowance of 198,120 dollars for unforeseen conditions. Failure to achieve substantial completion will result in liquidated damages of 1,534 dollars per calendar day. Contractors must adhere to strict environmental, health, and safety requirements, including mangrove protection and compliance with the Florida Trench Safety Act.

POSTED

DEADLINE

Site Work and Civil UtilitiesThis subcontract for Site Work and Civil Utilities involves providing essential infrastructure services for a new 7,200 square foot student center at the University of Washington. The scope of work includes site clearing, grading, excavation, and the installation of underground utilities. The contractor is responsible for executing all earthwork, trenching, and backfilling, ensuring that the site is properly graded and that all utility connections are successfully integrated into the existing campus infrastructure. The opportunity was posted on November 5, 2026, with a response deadline of December 4, 2026. Classified under NAICS code 237990, this project requires the delivery of a fully prepared site and functioning underground utility systems to support the prime contractor's facility development goals.

University of Washington

POSTED

DEADLINE

Wastewater Treatment Plant ConstructionThis subcontract agreement involves the execution of civil and mechanical construction for wastewater treatment plants at St Edmund's College, University of Cambridge. The selected contractor will work under prime contractors to deliver fully completed wastewater treatment facilities, ensuring all technical specifications for the infrastructure are met. The project is categorized under NAICS code 237990 and is managed by St Edmund's College Cambridge. Interested parties must adhere to the timeline established by the posting date of November 5, 2026, with a final response deadline set for November 19, 2026.

St Edmund's College Cambridge

POSTED

DEADLINE

Civil Works (General/Groundworks)This subcontract involves providing general civil engineering and groundworks services for prime contractors working on community park projects for the Derry City and Strabane District Council. The scope of work focuses on site preparation and earthworks, specifically utilizing grading equipment to construct a natural grass kick-about area. The primary objective is to deliver site-ready ground and a fully completed sports area. The opportunity was posted on November 5, 2026, with a response deadline of December 4, 2026. Classified under NAICS code 237990, the project is managed by the Derry City and Strabane District Council. Interested parties can find further details through the official tender notice.

Derry City and Strabane District Council

POSTED

DEADLINE

T26-143CAP Currynierin Community Park Contractors PQQ Application

Solicitation # T26-143CAP Currynierin Community Park Contractors PQQ Application

Derry City and Strabane District Council is seeking qualified contractors for the development of a new 1.75ha community park at Currynierin, Waterside, Derry/Londonderry. The project scope encompasses the demolition of an existing play area, substantial earthworks, and the installation of both traditional and SuDS drainage systems. Key deliverables include a DDA compliant inclusive play facility featuring approximately 18 pieces of equipment with wetpour safety surfacing, a natural grass kick-about pitch, and a network of lit footpaths. Additional works involve the installation of fencing on concrete mowing-strips, landscaping with specimen tree planting and grass seeding, and the provision of street furniture and signage. The estimated total value of the contract is 1,500,000 GBP including VAT, with an expected performance period of one year running from February 15, 2027, to February 14, 2028. All submissions must be submitted electronically via the eTendersNI portal by the deadline of December 4, 2026, at 12:00pm, as no other submission methods will be accepted. Detailed specifications and award criteria will be further determined during the Invitation To Tender stage.

Derry City and Strabane District Council

POSTED

DEADLINE

2026 Springfield Township Wolf Creek Logjam Removal

Solicitation # 49720

The 2026 Springfield Township Wolf Creek Logjam Removal project, managed by the Lucas County Engineer and the Board of Springfield Township Trustees, involves the removal of all logs and obstructions in the channel of Wolf Creek between I-475 and Holland-Sylvania Road in Lucas County, Ohio. The scope of work includes debris management, requiring logs to be stacked, secured, or wedged between trees to prevent them from returning to the stream, as well as site restoration through seeding and mulching. All work must adhere to 2023 ODOT Construction and Material Specifications and requires coordination with the Lucas County Engineer for construction inspection before commencement. Electronic proposals are due by 10:00 a.m. on November 10, 2026, and must include an electronic bid bond. Bids with zero dollar unit prices will be deemed non-responsive. The contract will be awarded to the lowest and best bidder, who may be required to submit a financial statement and experience questionnaire within three working days of the bid opening. The project must be completed by March 31, 2027. Contractors must comply with Ohio Prevailing Wage Laws under Chapter 4115 of the Ohio Revised Code and maintain liability insurance authorized for use in Ohio, providing a certificate of insurance to the Township prior to contract execution.

Lucas County Engineer

POSTED

DEADLINE

Lewis Park Improvements

Solicitation # 2026-IFB-222

Solicitation 2026-IFB-222 is an invitation for bids issued by the City of Pittsburgh Department of Public Works for general contracting services to improve Lewis Park in Hazelwood. The scope of work includes the construction of two basketball courts, a playground area, a pavilion, and greenspace. The base bid encompasses staking, demolition, site preparation, grading, concrete and asphalt work, site furnishings, and seeding. The project is awarded to the lowest responsive and responsible bidder, with a final electronic submission deadline of November 16, 2026, at 2:00 pm via the OpenGov portal. Contractors must adhere to Pennsylvania prevailing wage determinations and provide certified payrolls. Key requirements include the submission of a Performance Bond equal to 100 percent of the contract price within ten days of award, as well as a Payment Bond and current certificates of insurance. The City has established specific participation goals for disadvantaged businesses, including 18 percent for MBEs, 7 percent for WBEs, 5 percent for VOSBs, and 3 percent for LGBTQIA+ businesses. Payment is issued on a Net 45-day basis following the submission of itemized invoices based on the provided Schedule of Values. All work must comply with federal and state safety regulations, including OSHA and the Americans with Disabilities Act.

Public Works

POSTED

about 12 hours ago

DEADLINE

in 11 days

AI Contract Overview

This subcontract for Earthwork and Utility Trenching supports the South Coast Water District in Laguna Beach, California. The selected provider will be responsible for trenching, backfilling, and the protection of utilities for prime contractors, specifically focusing on the excavation of new water lines and the removal of surplus materials. All work must adhere to Greenbook Standard Specifications for Public Works Construction and Standard Drawing 225 for blanket protection of existing pipes. The scope of work emphasizes the protection of critical infrastructure, including gas, power, and fiber optic utilities, to ensure the delivery of compacted sites and secure utility corridors. Interested parties must submit their responses by October 9, 2026, under NAICS code 237990.

General Info

Earthwork and utility trenching subcontract for South Coast Water District, due October 9, 2026.

Agency

California → South Coast Water District

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

Laguna Beach, CA, 92651, USA

Set-Aside

NONE

Documents

This scope was carved out of 27-0007.

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

View the prime solicitation

Water Meter Box Relocation Project – Phase III

AI Contract Breakdown

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Timeline

PhaseClosed

PostedSep 18

subcontract

Response DeadlineOct 8

Deadline has passed

Submission Closed

10/08/2026, 05:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → South Coast Water District

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → South Coast Water District

Office AddressN/A

ContactsNo contact information available

Full Description

Performs trenching, backfilling, and utility protection for prime contractors on South Coast Water District projects. Excavates for new water lines, hauls surplus material, and implements blanket protection for existing pipes per Standard Drawing 225. Protects fiber optic, gas, and power utilities during excavation. Follows Greenbook Standard Specifications for Public Works Construction. Delivers compacted sites and protected utility corridors.