This Government Contract opportunity from California was posted on May 1, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Excavation and Backfilling Services

Closed

State & Local

Submission Closed05/21/2026, 09:00:00 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

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 28, 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

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 for Project No. 1000316-001C, owned by the Kings Canyon Unified School District. The project involves well drilling operations located across Reedley, Parlier, Dinuba, and Fresno, California. This opportunity is categorized under NAICS code 237990 and is managed through Anthony J. Prieto Water Well Drilling, Inc. This contract is designated as an SBA set-aside, making it available to various small business categories, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. The solicitation was posted on October 28, 2026, with a response deadline of November 10, 2026. Interested parties may contact Jennah Castagna for further information regarding the submission process.

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 under NAICS code 237990, is open for responses until November 5, 2026. Interested parties should coordinate with the primary point of contact, Andrew Burk, regarding this infrastructure improvement effort.

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, who serves as the point of contact for the procurement process.

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 from certified DBE and DVBE subcontractors and suppliers for the Montclair Basins 2 and 3 Diversion Improvements project. This work is part of the Recharge Master Plan Update Basin Improvements Project located at the San Antonio Creek Channel in Montclair, California, performed for the Inland Empire Utilities Agency. The opportunity is designated for various small business set-asides, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone certified businesses. Interested parties must submit their responses by November 5, 2026. Primary inquiries and quotes 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 Real Estate Services Division 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

Structural Repair at NCMT Berths 24-3 and 24-4, CA

Solicitation # structural-repair-ncmt-berths-24-3-24-4-ca

This solicitation, issued by Griffith Company, concerns structural repair work at NCMT Berths 24-3 and 24-4 located in California. The scope of work involves the demolition and removal of existing concrete decks, pile caps, and appurtenances, followed by the construction of a new reinforced concrete deck. Additionally, the project requires the repair of existing piles, the installation of pile jackets, and the replacement of various waterfront elements, including bull rails, wale systems, fenders, and mooring hardware such as bollards. The opportunity is set aside for small businesses under NAICS code 237990. Interested parties must submit their responses by the deadline of November 4, 2026. For further inquiries, the primary point of contact is Savana Powell.

POSTED

DEADLINE

Construction Services for Confined Aquatic Disposal Cell Construction and Maintenance Dredging of the Providence River Federal Navigation Project, Providence, Rhode Island.

Solicitation # W912WJ27X1CUP

The U.S. Army Corps of Engineers, New England District, is seeking information from small and large businesses for a dredging project in Providence, Rhode Island, under NAICS code 237990. The project is estimated to cost between $80,000,000 and $100,000,000, with a solicitation expected around March 15, 2027. Construction is scheduled to begin in September 2027 and last approximately two years, spanning two dredging seasons from September 1, 2027, to August 31, 2029. The work is divided into two primary sequences: the construction of a new Confined Aquatic Disposal (CAD) cell at Edgewood Shoals North, including an access channel, and the subsequent maintenance dredging of the Providence River and Harbor Federal Navigation Project to a depth of -40 feet MLLW plus two feet of allowable overdepth. The total scope involves mechanically dredging approximately 5,500,000 cubic yards of material using closed clamshell buckets. Specifically, 3,200,000 cubic yards will be removed to create the CAD cell, with material placed at Port Edgewood Basin, Fox Point Reach CAD cells, Prudence Island, and the Rhode Island Sound Disposal Site. The remaining 2,300,000 cubic yards of maintenance material will be placed within the newly constructed Edgewood Shoals North CAD cell. To meet strict environmental windows and project timelines, the contractor must maintain a production rate of at least 300,000 cubic yards every 30 calendar days, operating 24 hours a day, 7 days a week. Interested firms must submit a capabilities package by November 26, 2026, demonstrating experience with these production rates and open water placement in New England during winter months.

W2SD Endist New England

POSTED

DEADLINE

Culvert Removal and Installation

Department of Transportation

POSTED

DEADLINE

San Vicente and Mt. Olivette Reservoir Improvements Project - Construction

Solicitation # SP2797-CT

The San Vicente and Mt. Olivette Reservoir Improvements Project (SP2797-CT) is a construction solicitation issued by the City of Santa Monica Public Works Engineering Division. The project involves comprehensive upgrades and improvements to the San Vicente and Mt. Olivette reservoirs, with an estimated contract value of $27,344,000. Bidders are required to hold a Class A General Engineering license. The scope of work includes civil, structural, and electrical improvements, such as the installation of flexible expansion joints, meter and valve vaults, and concrete-lined swales, as well as cathodic corrosion protection and SCADA integration. The contract specifies a performance period of 730 calendar days, though the sample contract mentions substantial completion within 520 calendar days from the Notice to Proceed. Bids must be submitted electronically via the OpenGov portal by November 5, 2026, at 3:00 pm. Key requirements include the provision of Labor and Material Payment and Performance Bonds for 100% of the contract sum, compliance with prevailing wages, and adherence to the Santa Monica Living Wage Ordinance. Liquidated damages for delays are set at $13,200 per day. The project is subject to rigorous inspection standards, including ASTM and CBC requirements, with the Prime Contractor responsible for contracting and billing Enterprise Automation for specific integration services.

D500 PUBLIC WORKS - ENGINEERING DIVISION

POSTED

DEADLINE

CP1248808-Lake LaVerne-Improvements-Bridge and Amphitheater

Solicitation # 49337

Iowa State University is soliciting bids for the Lake LaVerne Improvements Bridge and Amphitheater project, identified by solicitation number 49337. This construction effort focuses on site enhancements including the installation of a 10 foot wide PCC pedestrian path, PCC sidewalks, and site lighting. Additionally, the scope of work encompasses the creation of outdoor amphitheater seating using limestone blocks, as well as comprehensive lakebed and shoreline grading and restoration. The solicitation was posted on October 27, 2026, with a response deadline set for November 3, 2026. Classified under NAICS code 237990, the project will be performed in Iowa. Interested parties can find further details and submission guidelines through the provided Bid Express link.

Iowa State University

POSTED

DEADLINE

Microtunneling and Trenchless Sewer InstallationThis subcontract for Microtunneling and Trenchless Sewer Installation involves the installation of casing pipes for prime contractors on Baltimore County Government sewer projects. The scope of work includes the operation of remotely controlled, steerable, guided Microtunnel Boring Machines to install 36-inch and 48-inch steel pipe and liner plates. Additionally, the contractor is responsible for constructing jacking and receiving pits, which encompasses excavation, sheeting, shoring, and dewatering, ensuring that installed casing pipes are within one inch of alignment. Qualified candidates must possess at least 10 years of similar experience and maintain strict compliance with OSHA 29 CFR 1926 and ANSI A10.16-1995 safety standards. The opportunity is categorized under NAICS code 237990, with a response deadline set for November 5, 2026.

Baltimore County Government

POSTED

about 20 hours ago

DEADLINE

in 8 days

AI Contract Overview

The contract involves excavation to specified depths, temporary storage of excavated materials, and backfilling using only approved materials, all performed in strict compliance with SSPWC and Caltrans standards. Work must culminate in proper compaction to achieve final grade requirements, ensuring structural integrity and regulatory adherence throughout the project. All tasks are scoped under the NAICS code 237990 and are structured as a subcontract with a response deadline of May 21, 2026. The work is procured by the Public Works agency in California, with the project portal accessible via the provided link for further details.

General Info

Excavation, temporary stockpiling, backfilling, and compaction per SSPWC-Caltrans standards, California public works.

Agency

California → Public Works

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

CA, USA

Set-Aside

NONE

Documents

This scope was carved out of RCP2020-17725.

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

View the prime solicitation

Citywide Safe Routes to School Sidewalk Gap Closure Project

AI Contract Breakdown

Uniform Contract Format

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Timeline

PhaseClosed

PostedMay 1

subcontract

Response DeadlineMay 21

Deadline has passed

Submission Closed

05/21/2026, 09:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia → Public Works

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → Public Works

Office AddressN/A

ContactsNo contact information available

Full Description

Excavation to required depths, temporary stockpiling, backfilling with approved material, and compaction to final grade per SSPWC and Caltrans standards.