This Government Contract opportunity from California was posted on April 22, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Civil/Earthwork and Grading Contractor

Closed

State & Local

Submission Closed07/11/2026, 12:00:00 AM 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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Columbia Canal Embankment Repair Services

Solicitation # columbia-canal-embankment-repair-services

The City of Columbia is seeking proposals for the Columbia Canal Embankment Repair Services project, identified as contract CIPDR 4241. Located in Columbia, Richland, South Carolina, this solicitation is managed by Phillips Heavy, Inc. and falls under NAICS code 237990. This opportunity is specifically set aside for various small business categories, including Small Disadvantaged Businesses, Women-Owned Small Businesses, HUBZone Small Businesses, and Veteran-Owned Small Businesses. Interested parties must submit their responses by the deadline of August 26, 2026. Primary contact for this project is Chandler Worley.

POSTED

DEADLINE

Aerial Structures Rehab

Solicitation # aerial-structures-rehab

The Aerial Structures Rehab project, identified by contract number FRBIR266247/LAN, is a solicitation for work located in Washington DC for the owner, WMATA. Managed by Posillico Civil, Inc., the project falls under NAICS code 237990 and is specifically set aside for Small Businesses and Small Disadvantaged Businesses. Interested parties must submit their responses by the deadline of August 19, 2026. The primary point of contact for this opportunity is Robyn Alma, who can be reached via email at ralma@posillicoinc.com or by phone at 516-458-2091.

Posillico Civil, Inc.

POSTED

DEADLINE

TRANSFER STATION FLOOR REPLACEMENT

Solicitation # transfer-station-floor-replacement

Prospect Construction, Inc. is seeking pricing for the Transfer Station Floor Replacement project located in Idaho. The scope of work includes aggregate, concrete, survey, and testing and inspection services. All interested subcontractors are required to provide a valid Idaho PWC license to be eligible for consideration. The solicitation is open to a wide range of businesses, with a strong emphasis on Small Business Enterprises and Disadvantaged Business Enterprises, including women, minority, and veteran-owned firms. Responses must be submitted by August 24, 2026. Inquiries and bids should be directed to James Gunther via the provided contact information.

Prospect Construction, Inc.

POSTED

DEADLINE

Sanitary Sewer & Recycled Water Project in CA

Solicitation # sanitary-sewer-recycled-water-project-ca

The Sanitary Sewer and Recycled Water Project in Colusa, California, is a construction solicitation issued by Garney Pacific, Inc. on behalf of the City of Colusa. The scope of work involves the installation of approximately 13,000 linear feet of new sewer gravity mains, recycled water mains, and sewer force mains, along with the installation of sewer manholes and the execution of pavement grinding and overlay. Key project deliverables include site preparation, grading, joint trenching, traffic control, paving, stripping, vac-truck services, trucking, and CCTV inspection to ensure the functionality and safety of the underground infrastructure. The solicitation, identified by number sanitary-sewer-recycled-water-project-ca and NAICS code 237990, is open for responses until September 1, 2026, at 3:00 PM PT. This opportunity is set aside for various small business categories, including Small Disadvantaged Business, Women-Owned Small Business, HUBZone, and Veteran-Owned Small Business entities, with a strong emphasis on Disadvantaged Business Enterprise participation. Special requirements for subcontractors include the mandatory use of union labor and the provision of 100 percent payment and performance bonds from U.S. Treasury-listed sureties. All bids must be submitted through the Garney Pacific portal, and any proposed modifications to the standard purchase order and subcontract forms must be included with the quote.

POSTED

DEADLINE

Haleiwa Small Boat Harbor Maintenance Dredging and Revetted Mole Repair

Solicitation # W9128A26BA002

Healy Tibbitts Builders, Inc. is seeking small business subcontractors and suppliers for the Haleiwa Small Boat Harbor Maintenance Dredging and Revetted Mole Repair project in Hawaii. This firm-fixed-price effort, issued as an Invitation for Bid under solicitation W9128A26BA002, has an estimated value between 1 million and 5 million dollars. The scope of work includes mobilization and demobilization, the dredging and ocean disposal of 4,260 cubic yards of material, and revetted mole repairs involving stone rework and CRM wall repair. The period of performance is 200 calendar days from the notice to proceed, with a response deadline of September 30, 2026. The contract is set aside for various small business categories, including SDB, WOSB, HUBZone, VOSB, and SDVOSB, under NAICS code 237990. Key requirements include adherence to USACE EM 385-1-1 safety standards, Davis-Bacon Act prevailing wages, and specific ASTM standards for stone materials. Awardees must provide a qualified project team, including a Project Manager, Superintendent, Quality Control Manager, and Site Safety and Health Officer. Performance is subject to a three-phase control process and final acceptance by the Contracting Officer. Liquidated damages for construction delays are set at 2,297 dollars per calendar day.

Healy Tibbitts Builders, Inc.

POSTED

DEADLINE

SBWRP Reverse Osmosis System

Solicitation # K-26-2469-DBB-3

Garney Pacific, Inc. is acting as the general contractor for the SBWRP Reverse Osmosis System project, located in San Diego, California, for the City of San Diego. The project has an estimated bid value of 19,300,000.00 dollars and falls under NAICS code 237990. The scope of work involves the design and removal of existing trailer-mounted electrodialysis reversal, slab-mounted membrane filtration, and reverse osmosis units. These will be replaced with new slab-mounted membrane filtration and reverse osmosis units to create a demineralization facility aimed at reducing total dissolved solids in reclaimed water. Garney Pacific is seeking quotes from subcontractors for various trades, including HVAC, plumbing, electrical, concrete, pumping, crane services, aggregate, landscaping, painting, piping insulation, and demolition. The solicitation, identified as sbwrp-reverse-osmosis-system and bid number K-26-2469-DBB-3, has a response deadline of August 27, 2026, by 2:00 PM PT. All subcontractors must utilize union labor and be prepared to provide a 100 percent payment and performance bond from a US Treasury listed surety company, though Garney will reimburse the bond premium. The company is actively seeking participation from small businesses, including those with DBE, MBE, WBE, or SBE certifications, and can provide assistance to SLBE and ELBE firms in obtaining insurance or bonding lines of credit. Contracting will be based on Garney Standard PO and Subcontract Forms, and any exceptions to these forms must be submitted as redline comments with the quote.

POSTED

DEADLINE

Site Preparation and GradingThis subcontract for Site Preparation and Grading is issued by the Engineering agency in Arizona. The project focuses on the generator site, requiring comprehensive clearing, grading, and soil compaction to establish foundation stability and ensure effective drainage. Additionally, the contractor must implement necessary erosion control measures to maintain site integrity. The solicitation was posted on August 16, 2026, with a response deadline of September 3, 2026. Classified under NAICS code 237990, this opportunity is managed through the OpenGov procurement portal for San Luis, Arizona.

POSTED

DEADLINE

San Luis High School Lift Station Generator

Solicitation # 2027-RFB-00000003

The City of San Luis, Arizona, has issued solicitation 2027-RFB-00000003 for the construction of the San Luis High School Lift Station Generator. The project requires a contractor to provide all labor, materials, equipment, tools, and incidental services necessary to complete the installation and ensure the generator system is fully operational. The place of performance is located in San Luis, Arizona, 85349. Interested bidders must submit their proposals electronically through the OpenGov Procurement Portal by the deadline of September 3, 2026. Each submission must be accompanied by a bid bond, certified check, or cashier's check equal to ten percent of the total bid amount. Primary coordination for this project is handled by Project Coordinator Gael Castro and Purchasing Coordinator Angelica Cifuentes. While specific evaluation factors and contract values are not disclosed, the contractor will be required to provide a signed affidavit regarding the settlement of claims and the execution of lien waivers upon payment.

POSTED

DEADLINE

Well Site 4 - Water Storage and Pressure Tanks Rehabilitation

Solicitation # 2027-RFB-00000002

The Engineering agency in San Luis, Arizona, is seeking sealed proposals for the Well Site 4 Water Storage and Pressure Tanks Rehabilitation project under solicitation number 2027-RFB-00000002. The selected contractor will be responsible for providing all necessary labor, materials, equipment, and tools required to complete the rehabilitation and all incidental work. Interested parties must submit their bids through the OpenGov Procurement Portal by the deadline of September 3, 2026, at 8:00 PM MST. Each submission must include a bid bond, cashier's check, or certified check equal to ten percent of the total bid amount. Primary inquiries should be directed to Project Manager Oscar Barnett.

POSTED

DEADLINE

Boston Cemetery Road Pipe Repair

Solicitation # city-of-oviedo-26-39-2021

The Boston Cemetery Road Pipe Repair project, managed by the City of Oviedo Public Works in Florida, involves the removal and replacement of 195 feet of damaged 24-inch by 38-inch elliptical reinforced concrete pipe with 30-inch HP Storm Dual Wall Pipe. This solicitation, identified by number city-of-oviedo-26-39-2021, was posted on August 16, 2026. Interested parties must submit their responses by the deadline of September 10, 2026, at 6:00 PM. Primary coordination for this project is handled by Jacqueta Scott, with additional support provided by the Procurement Department. Detailed bidding information and submission portals are available through the MyVendorLink website.

City Of Oviedo — Public Works

POSTED

DEADLINE

Excavation and GradingThe Excavation and Grading subcontract is issued by the Florida Streets agency for site preparation work focused on a sidewalk alignment. The scope of work encompasses clearing, grubbing, excavation, and subgrade compaction to ensure the area is properly prepared for construction. This opportunity is categorized under NAICS code 237990. Interested parties must submit their responses by the deadline of September 14, 2026, at 1:00 PM. Further details and application processes are available through the provided procurement portal.

POSTED

DEADLINE

Highgrove Channel Slope Repairs

Solicitation # 20260814022

The Riverside County Flood Control And Water Conservation District is soliciting bids for the Highgrove Channel Slope Repairs project in Colton, California. The contractor is responsible for providing all necessary labor, materials, equipment, and supervision to repair twelve specific locations along a 6,040-linear-foot concrete-lined flood control channel between Main Street and Orange Street. The scope of work includes full panel replacements and localized concrete patch repairs to address significant deterioration, with estimated quantities involving 9 cubic yards of excavation, 59 cubic yards of backfill, and 37 cubic yards of concrete. This solicitation, identified by bid number FCARC-00206 and solicitation number 20260814022, falls under NAICS code 237990. The response deadline for this project is August 25, 2026. Primary points of contact for the project include Brenda Bush, Marilyn Weisenberg, and Jeff Shim.

Riverside County Flood Control And Water Conservation District

POSTED

1 day ago

DEADLINE

in 9 days

AI Contract Overview

The contract seeks a Civil/Earthwork and Grading Contractor to perform site preparation, excavation, grading, and drainage services for new construction or site improvement projects. The work is part of a subcontract opportunity under NAICS code 237990, with a response deadline of July 11, 2026, and was posted on April 22, 2026. The contract is being managed by the Purchasing and Warehouse division in California, though specific location details for performance or agency office are not provided. Participation is open without set-aside restrictions, and all bids must be submitted through the designated online portal linked in the contract data.

General Info

Subcontract for civil and earthwork services including excavation, grading, and drainage in California.

Agency

California → Purchasing&WarehouseView Agency

NAICS

237990 - Other Heavy and Civil Engineering ConstructionView NAICS

Place of Performance

CA, USA

Set-Aside

NONE

Documents

This scope was carved out of RFQ 23-00030.

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

View the prime solicitation

Notice Inviting Prequalification RFQ2607A

AI Contract Breakdown

Uniform Contract Format

No contract breakdown available.

Cannot generate Contract Breakdown because no documents were found from this contract's source.

Timeline

PhaseClosed

PostedApr 22

subcontract

Response DeadlineJul 11

Deadline has passed

Submission Closed

07/11/2026, 12:00:00 AM UTC

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Organization & Contact Information

AgencyCalifornia → Purchasing&Warehouse

ContactsNo contacts available

OfficeN/A

Organization / Agency

California → Purchasing&Warehouse

View Agency Profile

Office AddressN/A

ContactsNo contact information available

Full Description

Perform site preparation, excavation, grading, and drainage work for new construction or site improvements.