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

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Riprap & Stone Facing Supply/Installation

Closed

Federal

Submission Closed09/16/2026, 11:00:00 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

Site Work and EarthworkThis subcontract for Site Work and Earthwork involves comprehensive site preparation for a school addition project managed by the Henry County Board of Education in Georgia. The scope of work includes critical early-stage construction activities such as clearing and grubbing, rough grading, soil stabilization, and trenching for utilities. The primary objective is to deliver a fully graded building pad and a site properly prepared for subsequent foundation work and drainage requirements. The solicitation was posted on October 28, 2026, with a response deadline set for December 3, 2026. Classified under NAICS code 237990, the contract requires the selected subcontractor to coordinate closely with prime contractors to ensure all excavation and grading specifications are met to prepare the facility for vertical construction.

Henry County Board of Education

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 all other miscellaneous contractor specialty navigation services, and is managed through the agency's Virginia-based organizational structure. Interested parties have until September 30, 2027, to submit their responses. Further details and bidding processes are managed 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 number 1000316-001C on behalf of the Kings Canyon Unified School District. The scope of work involves well drilling operations located across Reedley, Parlier, Dinuba, and Fresno, California. This project 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 28, 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. Technical requirements include the provision of complete electrical, instrumentation, and SCADA integration to operate the gates, with programming limited to approved integrators Technical Systems, Inc. or E Technologies Group. This solicitation, managed by Granite Construction Company, is categorized under NAICS code 237990 and includes a Disadvantaged Business Enterprise set-aside. Interested parties must submit responses by November 5, 2026.

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 coordination for this solicitation is handled by Gio Marquez.

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. This solicitation, identified by Project Number 13891 and Event ID 0000040533, focuses on site compliance and infrastructure enhancements under NAICS code 237990. The 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. Primary coordination for this project is handled by Savana Powell.

POSTED

DEADLINE

Underground Parking Structure ConstructionThis subcontract involves the excavation and structural construction of an underground parking facility for the City of Hawthorne in California. The project requires the delivery of a completed and inspected structure providing approximately 170 parking spaces, which must include the necessary structural support to accommodate a park located directly above the facility. The scope of work necessitates the use of heavy excavation equipment and the implementation of reinforced concrete systems. The project is located in Hawthorne, California, zip code 90250, and falls under NAICS code 237990. Interested parties must note that the response deadline for this opportunity is January 27, 2027.

City of Hawthorne, California

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

Utility Relocation ServicesThis subcontract for Utility Relocation Services involves performing critical infrastructure movement for prime contractors on California High-Speed Rail Authority projects. The selected contractor will be responsible for relocating water, gas, electric, and telecommunications lines to clear the right-of-way, ensuring all work is coordinated with utility owners and the Authority to meet strict project specifications. The primary objective is the delivery of fully relocated and operational utility infrastructure. The project is located in Tulare, California, and falls under NAICS code 237990. Interested parties must be authorized utility relocation contractors to be eligible. The solicitation was posted on October 28, 2026, with a response deadline set for December 16, 2026.

California High-Speed Rail Authority

POSTED

DEADLINE

Civil Engineering and Site Preparation

Choice Housing Ireland Limited

POSTED

about 3 hours ago

DEADLINE

in 30 days

AI Contract Overview

This subcontract through the Dsc Contracting Services Division of the Department of the Interior involves the supply and installation of stone facing and riprap for National Park Service shoreline projects in Washington, D.C. The selected provider will work under prime contractors to place armor stone and riprap using heavy lifting equipment, specifically designed to protect seawalls and prevent shoreline erosion. All work must adhere to strict marine-grade stone material specifications to ensure the durability of the installed protection. The opportunity was posted on September 1, 2026, with a response deadline of September 16, 2026, falling under NAICS code 237990.

General Info

Subcontract for stone facing and riprap installation for NPS shoreline projects in DC.

Agency

Department Of The Interior → Dsc Contracting Services Division

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

Set-Aside

NONE

Documents

This scope was carved out of 140P2026R0104.

The full solicitation package (7 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Y--SPECIAL NOTICE - INDUSTRY DAY/PROJECT PRESENTATION - National Mall and Memorial

AI Contract Breakdown

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Timeline

PhaseClosed

PostedSep 1

subcontract

Response DeadlineSep 16

Deadline has passed

Submission Closed

09/16/2026, 11:00:00 PM UTC

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Organization & Contact Information

AgencyDepartment Of The Interior → Dsc Contracting Services Division

ContactsNo contacts available

OfficeN/A

Organization / AgencyDepartment Of The Interior → Dsc Contracting Services Division

Office AddressN/A

ContactsNo contact information available

Full Description

Supplies and installs stone facing and riprap for prime contractors on National Park Service shoreline projects in Washington, D.C. Places riprap and armor stone using heavy lifting equipment to prevent erosion and protect seawalls. Adheres to marine-grade stone material specifications. Delivers installed stone facing and riprap protection.