This Government Contract opportunity from California was posted on June 12, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Site Preparation and Earthwork

Closed

State & Local

Submission Closed07/07/2026, 10:00:00 PM UTC

Contract Overview

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

Active Opportunities Like This One

NAICS: 237990

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SLED

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 falls under NAICS code 237990, focusing on specialized heavy civil engineering and construction services necessary for the modernization of rail infrastructure. Interested parties have until September 30, 2027, to submit their responses. The procurement process is being managed by the agency's Virginia-based organization, and further details regarding bid submissions can be accessed through the official WMATA supplier portal.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

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 is a solicitation issued by the Kings Canyon Unified School District under project number 1000316-001C. This project involves well drilling operations across multiple locations in California, specifically within Reedley, Parlier, Dinuba, and Fresno. The solicitation is categorized 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 October 24, 2026, with a response deadline set for November 10, 2026. Interested parties may coordinate through the primary point of contact, Jennah Castagna.

Anthony J. Prieto Water Well Drilling, Inc.

POSTED

DEADLINE

Construction of The Recharge Master Plan Update (RMPU) Basin Improvements Project - Montclair Basin Improvements

Solicitation # construction-recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin-0

The Recharge Master Plan Update Basin Improvements Project involves the construction of two drop inlet diversion structures across the 25-foot-wide concrete San Antonio Creek Channel in Montclair, California. The scope of work includes excavating 8 to 10 feet below the channel floor, installing steel debris grates, and fitting wall-mounted steel gates on the east sides of the structures. Additionally, the project requires the installation of 4-foot-diameter discharge pipelines leading to Montclair Basins 2 and 3, which will be covered by 3 feet of soil and terminate in concrete outlet structures designed for flow dissipation. The project also encompasses the delivery of complete electrical, instrumentation, and SCADA integration to manage gate actuation, with programming limited to Technical Systems, Inc. or E Technologies Group. This solicitation, issued by Granite Construction Company, has a response deadline of November 5, 2026. The contract is categorized under NAICS code 237990 and includes a set-aside for Disadvantaged Business Enterprises.

Granite Construction Company

POSTED

DEADLINE

ARWA Carrizo System Expansion: Well Drilling

Solicitation # arwa-carrizo-system-expansion-well-drilling

The Alliance Regional Water Authority is seeking bids for the Carrizo System Expansion project focusing on well drilling services located in Rosanky, Texas. This solicitation, identified as ARWA IFB Number 2026-001, is managed by Hydro Resources - Mid Continent, Inc. and falls under NAICS code 237990. The opportunity is specifically set aside for Small Businesses and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 3, 2026. Primary coordination for this contract is handled by Amy Majors.

Hydro Resources - Mid Continent, Inc.

POSTED

DEADLINE

Construction of The Recharge Master Plan Update (RMPU) Basin Improvements Project - Montclair Basin Improvements

Solicitation # construction-recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin

Empire Equipment Service, Inc. is soliciting quotes for the Construction of The Recharge Master Plan Update Basin Improvements Project, specifically focusing on the Montclair Basins 2 and 3 Diversion Improvements at the San Antonio Creek Channel in Montclair, California. This project is being conducted for the Inland Empire Utilities Agency and falls under NAICS code 237990. The opportunity is specifically seeking certified DBE and DVBE subcontractors and suppliers, with set-asides available for various small business categories including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. Interested parties must submit their responses by November 5, 2026. Primary inquiries should be directed to Gio Marquez via the provided estimating email or phone contact.

Empire Equipment Service, 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. 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

Manhole Installation & Heavy Civil Work

POSTED

DEADLINE

The Town of Trumbull is soliciting sealed proposals for the Department of Public Works Fuel Pump Renovation project, identified as solicitation 6581. The scope of work requires the contractor to provide all labor, materials, and equipment for the demolition, removal, and installation of fuel pump facilities. Key deliverables include the construction of fuel islands, tank slabs, and canopies, as well as the implementation of fire suppression and electrical systems. The project must adhere to the 2024 Connecticut Sediment and Erosion Control Guidelines, Town of Trumbull noise regulations, and technical standards such as NFPA 30, 30A, and 70. Proposals are due by December 1, 2026, at 2:00 PM ET and must be submitted in a sealed envelope to the Purchasing Agent. The selection process may evaluate proposers based on their previous experience with comparable work and available financial and technical resources. Required submission documents include a completed bid form, a list of subcontractors, and evidence of similar services provided to at least four clients in the last five years. The successful contractor must provide a 10% bid security, 100% performance and payment bonds, and a Certificate of Insurance naming the Town of Trumbull and the State of Connecticut as additional insureds. Additionally, the contractor must comply with Connecticut State Prevailing Wage Rates and ensure personnel have completed the 10-hour OSHA Construction Safety and Health Course. Payment is structured via estimates with a 5% retainage, though the Town may approve payments for long-lead equipment prior to delivery.

POSTED

DEADLINE

Shoreline Stabilization Contractor

Tourism, Culture and Gaming

POSTED

DEADLINE

Fort William Historical Park – Bank Stabilization Construction Services (Historic Wharf)

Solicitation # tender_22303

The Government of Ontario, through the Ministry of Tourism, Culture and Gaming, is seeking a qualified contractor for bank stabilization and erosion mitigation works at the Historic Wharf of Fort William Historical Park in Thunder Bay, Ontario. The project aims to stabilize the existing embankment, protect the boardwalk and surrounding infrastructure, and restore safe conditions. The scope of work encompasses all necessary labor, materials, and supervision for site preparation, earth excavation, installation of geotextile and gabion basket retaining systems, placement of blast rock and clear stone, temporary dewatering, erosion and sediment control, and final site restoration including topsoil and sodding. The procurement process, identified as tender 22303, utilizes a multi-stage evaluation totaling 250 points. Bidders must first pass a technical evaluation focusing on health and safety, requiring a minimum score of 60 points to proceed to the commercial evaluation. The final selection is based on the highest scoring compliant bid, with a 10 percent score increase awarded to the bidder demonstrating the highest proportion of Ontario-made goods and services. Mandatory requirements include a non-U.S. business status, a commitment that 90 percent of staff are located in Canada, and a bid deposit of at least 10 percent of the total bid price. Selected contractors must provide a detailed project plan, procurement plan, and health and safety plan, while ensuring all Ontario tax obligations are in good standing.

Tourism, Culture and Gaming

POSTED

DEADLINE

FY 2027 Ditch Re-establishment (DRE) Work Order Contract #1

Solicitation # CB-2026-0070

The City of Houston is soliciting bids for the FY 2027 Ditch Re-establishment (DRE) Work Order Contract #1 (Solicitation CB-2026-0070), a citywide, work-order-based project focused on restoring roadside drainage. The scope of work includes re-establishing and re-grading existing ditches, repairing or replacing culverts and driveways, vegetation management, and the removal of debris to mitigate flooding risks. The contract has an estimated construction budget and maximum value of 10,000,000.00 dollars. The City intends to award the contract based on the overall low net bid from a responsive and responsible bidder who can demonstrate a track record of at least three similar prime contracts. The contract is estimated to begin in February 2027, following a projected Council Agenda date in January 2027. Key requirements include the submission of a security deposit equal to 10 percent of the total bid, as well as performance, payment, and one-year maintenance bonds. Contractors must adhere to strict compliance standards, including the City's W/SBE Program with good faith efforts to award 5 percent to WBEs and 18 percent to SBEs, prevailing wage rates, and ADA and Texas Architectural Barriers Act standards. Legal obligations include a one-year defect correction period and a four-year indemnification period following contract termination. Additionally, the contractor must provide insurance with a two-year extended discovery period for claims-made coverage and comply with a zero-tolerance policy regarding human trafficking.

POSTED

DEADLINE

Pipeline Excavation and Backfilling ServicesThis subcontract for Pipeline Excavation and Backfilling Services, issued by Pakistan Refinery Limited, involves providing specialized excavation and backfilling support for prime contractors on KWSC pipeline projects in Pakistan. The scope of work includes excavating through various materials such as soil, rock, concrete, and roads, as well as managing dewatering processes. The contractor is responsible for delivering a fully excavated pipeline trench and ensuring the final surface is leveled and compacted. Technical requirements specify that backfilling must be executed in layers no deeper than 6 inches and compacted to 95% ASHTO dry density using plate compactors and rollers. Interested parties must submit their responses by November 4, 2026, in accordance with the solicitation posted on October 23, 2026.

Pakistan Refinery Limited

POSTED

about 22 hours ago

DEADLINE

in 11 days

AI Contract Overview

The contract involves performing clearing, grubbing, and earthwork activities, with a particular emphasis on precise rock placement to facilitate the installation of large wood structures within a sensitive estuarine environment. This work requires careful handling to protect the ecological integrity of the site while preparing it adequately for the structural installations. The project is located in San Luis Obispo and is managed by the California Department of Parks & Recreation. Scheduled for solicitation in mid-June 2026, the contract is a subcontract opportunity under NAICS code 237990, which pertains to heavy and civil engineering construction. Interested parties must submit their responses by early July 2026. The contract’s focus on environmental sensitivity and detailed earthwork underscores the need for contractors experienced in both civil construction and ecological conservation practices.

General Info

Clearing, grubbing, earthwork for rock placement, environmental protection in San Luis Obispo, July 2026.

Agency

California Department of Parks & Recreation

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

San Luis Obispo, CA, USA

Set-Aside

NONE

Documents

This scope was carved out of 0000039563.

The full solicitation package (8 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

C26863004 ESTERO BLUFFS STATE PARK - Villa Estuary Ehhancement

AI Contract Breakdown

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Timeline

PhaseClosed

PostedJun 12

subcontract

Response DeadlineJul 7

Deadline has passed

Submission Closed

07/07/2026, 10:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia Department of Parks & Recreation

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia Department of Parks & Recreation

Office AddressN/A

ContactsNo contact information available

Full Description

Perform clearing, grubbing, and earthwork including precise rock placement to support large wood structure installation in a sensitive estuarine environment.