This Government Contract opportunity from California was posted on June 19, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Excavation and Trenching Services

Closed

State & Local

Submission Closed07/10/2026, 09:00:00 PM UTC

Contract Overview

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

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NAICS: 237990

New

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 is categorized under NAICS code 237990, which pertains to other heavy and civil engineering construction. The notice was posted on October 6, 2026, and the deadline for responses is set for September 30, 2027. Interested parties can find further details and manage bids through the official WMATA supplier portal.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

Livorna Park Improvements Project

Solicitation # livorna-park-improvements-project

The Livorna Park Improvements Project is a comprehensive construction renovation effort located in California, managed by Interstate Grading & Paving, Inc. The scope of work encompasses a wide array of infrastructure and recreational upgrades, including the renovation of concrete retaining walls, the installation of a playground, basketball and bocce courts, pedestrian walkways, and paving. Additionally, the project includes the construction of bathrooms, shade structures, a mist play area, fencing, and the installation of signage, benches, drinking fountains, and bike racks. Essential utility and site work are also required, covering landscaping, irrigation, lighting, sewer, storm drains, plumbing, and electrical systems. This solicitation is specifically set aside for Small Businesses and Disadvantaged Business Enterprises, with a strong emphasis on seeking MBE, WBE, and LBE firms. Interested parties must submit their responses by the deadline of October 14, 2026. Primary coordination for the project is handled by Tina Marie, and the opportunity is categorized under NAICS code 237990.

Interstate Grading & Paving, Inc.

POSTED

DEADLINE

Solicitation # city-lomita

The City of Lomita has issued solicitation W-375 for a project located in Lomita, Los Angeles, California. This opportunity is managed through Dominguez General Engineering, Inc., with Christian Rosales serving as the primary point of contact. The solicitation was posted on October 6, 2026, and requires responses to be submitted by the deadline of October 20, 2026. This contract falls under NAICS code 237990 and is specifically set aside for various small business categories. Eligible entities include SBA-designated Small Businesses, Small Disadvantaged Businesses, certified Women-Owned Small Businesses, Disadvantaged Business Enterprises via the Department of Transportation, and Minority Business Enterprises with NMSDC certification.

Dominguez General Engineering, 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.

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DEADLINE

MKCs02 - Cass Highwall

Solicitation # 48890

The Cass Highwall Project, located in Cass Township, Muskingum, Ohio, focuses on reclaiming legacy undrained highwall impoundments from mid-century surface mining operations. The primary objective is to mitigate public hazards by draining mine pits, backfilling exposed highwalls to establish stable drainage, and restoring the land configuration. Key deliverables include the construction of dedicated drainage channels in valley regions and the installation of a permanent sediment pond featuring an engineered embankment dam and emergency spillway on the western boundary. The scope of work involves the dewatering of approximately 2.7 million gallons of water, 155,000 cubic yards of earthwork, and the restoration of 32 acres through clearing and revegetation. Additional requirements include 11,000 square yards of channel stabilization and 4,200 cubic yards of embankment fill. The engineer's estimate for the project is 1,412,136.00 dollars. A mandatory pre-bid meeting is scheduled for September 29, 2026, at 10:00 AM at 9425 Schneider Lane, Dresden, Ohio.

ODNR-Division of Mineral Resources Management

POSTED

DEADLINE

Embarcadero Plaza And Sue Bierman Park Renovation Project

Solicitation # 20261003031

San Francisco Public Works and San Francisco Recreation and Park Department

POSTED

DEADLINE

Austin Park Skatepark - Rebid

Solicitation # LF2026(4)

The City of Clearlake is soliciting bids for solicitation number LF2026(4) to construct a new above-ground skatepark at Austin Park, located at 14135 Olympic Drive, Clearlake, California. The project scope encompasses comprehensive site development, including demolition, earthwork, subgrade preparation, and the installation of cast-in-place concrete for flatwork, ledges, and stairs. Specialized requirements include shotcrete application for ramped features following ACI 506 and 506.2 standards, metal fabrication for coping and edging, and strict adherence to ASTM F-2480 safety guidelines. The engineer's estimate for the project is 960,000.00 dollars, and the successful contractor must complete all work within 25 working days from the issuance of the Notice to Proceed. Bids must be submitted electronically via the e-Procurement Portal by 3:00 pm on October 22, 2026, and must remain valid for 90 calendar days. The contract will be awarded to the lowest responsive and responsible bidder based on a balanced bid evaluation. Required submissions include a completed electronic bid schedule, bidder information and experience forms, and a bid bond of at least 10 percent of the total bid price. The winning bidder must provide performance and payment bonds for 100 percent of the contract price and provide proof of current registration with the Department of Industrial Relations. Contract administration includes monthly progress payments at 95 percent of the work value, with the final 5 percent retained until 60 days after the recordation of the Notice of Completion. Contractors are required to comply with Buy America requirements, Lake County prevailing wage rates, and maintain a four-foot ADA compliant pedestrian path during construction. Quality control is managed by a City-funded independent testing laboratory, and all soil must be compacted to 95 percent max standard proctor density. Documentation requirements include digital video and photographic records of the site, as well as mill certificates for all component materials provided at the time of delivery.

POSTED

DEADLINE

Mechanical Dredging OperationsThis subcontract for Mechanical Dredging Operations involves the removal of material for prime contractors on US Army Corps of Engineers maintenance dredging projects located in the Isle au Haut Thoroughfare. The selected contractor will utilize mechanical dredges to execute a Dredging Operation Plan, ensuring the delivery of a dredged channel that meets all specified depth and slope requirements while carefully managing overdepth and side slopes. The project is set aside for small businesses under NAICS code 237990 and is managed by the Department of Defense through the W2SD Endist New England. All operations must strictly adhere to the National Dredging Quality Management Program and USACE EM-385-1-1 safety standards. The response deadline for this opportunity is November 2, 2026.

W2SD Endist New England

POSTED

DEADLINE

GAOA Tony Grove Dam Spillway Capacity & Seismic Mitigation, Uinta/Wasatch/Cache National Forest

Solicitation # 1240BH27Q0002

Csa Northwest 6 Usda-Fs

POSTED

DEADLINE

Z--ALPO STABILIZATION OF STAPLE BEND TUNNEL

Solicitation # 140P4226R0026

National Park Service Contracting Activity

POSTED

DEADLINE

Maintenance Dredging of the Isle au Haut Thoroughfare near Isle au Haut, Maine

Solicitation # W912WJ27BA003

Solicitation W912WJ27BA003 is a sealed bid procurement issued by the Department of Defense, W2SD Endist New England, for the maintenance and advance maintenance dredging of the Isle au Haut Thoroughfare Federal Navigation Project in Maine. This project is a total small business set-aside under NAICS 237990, with an estimated value between 1,000,000 and 3,000,000 dollars. The scope of work involves the mechanical dredging of approximately 3,355 cubic yards of highly compacted coarse sand, gravel, cobbles, and isolated boulders to a required depth of -7 feet Mean Lower Low Water, with an allowable overdepth resulting in a maximum depth of -8 feet. All dredged material is to be transported and placed at the Flake Island Disposal Site, located approximately 0.9 to 1 nautical mile northwest of the project site, to enhance juvenile lobster and cod habitats. Performance is restricted to an environmental window between September 15 and April 1 to protect benthic resources and federally managed species, with the specific dredging and disposal period set from September 15, 2026, to March 1, 2027. The contractor must maintain a minimum production rate of 4,000 cubic yards every 30 calendar days and provide a project schedule within five days of the Notice to Proceed. Award will be granted to the lowest responsive and responsible bidder, with specific evaluation preferences for HUBZone small businesses. Key requirements include the provision of performance and payment bonds, compliance with NIST SP 800-171 cybersecurity standards, and the hosting of a partnering session within 45 days of award. All proposals must be submitted electronically via the Procurement Integrity Enterprise Environment portal.

W2SD Endist New England

POSTED

DEADLINE

Unit Price Contract for Maintenance Dredging of Pensacola Harbor Entrance Channel

Solicitation # W9127826BA003

Solicitation W9127826BA003 is a Firm-Fixed Price sealed bid for the maintenance dredging of the Pensacola Harbor Entrance Channel in Florida, issued by the U.S. Army Engineer District, Mobile. The project requires the removal of sand from Station 202+00 to 301+00 to a depth of 39 feet, with material to be placed along Perdido Key Beach at pumping distances up to 30,000 feet. The contractor must provide all necessary crew, management, and equipment, including hydraulic cutterhead pipeline, trailing suction hopper, or mechanical dredges with scows and supporting tugs and barges. The estimated project cost is between 25 million and 100 million dollars, with a performance period of 151 calendar days and a final completion deadline of April 1, 2027. The award will be based on the total price for the basic requirement plus six bid options for channel wideners and advance maintenance. A 10 percent price evaluation preference is available for certified HUBZone small business concerns. Bids must be submitted via the Procurement Integrated Enterprise Environment module by October 13, 2026. Key requirements include compliance with the Davis-Bacon Act, Buy American regulations, and FDEP environmental permits. Acceptance of work is based on before and after dredging surveys within a defined acceptance prism, with payment allowed for overdepth up to 2 feet. Required submissions include Standard Form 1442, a bid schedule, bid bonds, and disclosures regarding organizational conflicts of interest.

W074 Endist Mobile

POSTED

about 20 hours ago

DEADLINE

in 7 days

AI Contract Overview

The Board of Education of the Oceanside Unified School District in California is seeking a subcontractor for excavation and trenching services located in Oceanside, zip code 92057. The scope of work includes trenching for underground piping, backfilling, and site restoration at various school locations, with a specific requirement for erosion control and 811 compliance. This opportunity was posted on June 19, 2026, and falls under NAICS code 237990. Interested parties must submit their responses by the deadline of July 10, 2026.

General Info

Oceanside Unified School District seeks excavation and trenching subcontractors by July 10, 2026.

Agency

California → Board of Education of the Oceanside Unified School District

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

Oceanside, CA, 92057, USA

Set-Aside

NONE

Documents

This scope was carved out of 2027-01-002B.

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

View the prime solicitation

Fire Hydrant Project - Multi Sites

AI Contract Breakdown

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Timeline

PhaseClosed

PostedJun 19

subcontract

Response DeadlineJul 10

Deadline has passed

Submission Closed

07/10/2026, 09:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia → Board of Education of the Oceanside Unified School District

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → Board of Education of the Oceanside Unified School District

Office AddressN/A

ContactsNo contact information available

Full Description

Excavation, trenching for underground piping, backfilling, and site restoration at school locations, including erosion control and 811 compliance.

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