This Government Contract opportunity from City of Cincinnati was posted on September 29, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Excavation and Subgrade Preparation

Closed

State & Local

Submission Closed10/13/2026, 04:00:00 PM UTC

Contract Overview

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

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NAICS: 238910

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Solicitation # keystone-job-corps-building-14-demo

The Keystone Job Corps Building 14 Demo project involves the complete demolition of the old security building and its foundation at the Keystone Red Rock Job Corps Center in Drums, Pennsylvania. The scope of work includes the removal of an old septic system, debris, trees, and rocks, followed by backfilling, grading, and seeding of the area. Critical infrastructure tasks include capping the sewer, disconnecting and replacing the water shut-off valve within a strict one-day window between 8:30 AM and 3:00 PM to minimize student disruption, and rerouting power and communications to ensure the guard shack and mountain pump house and water tank remain operational. This small business set-aside solicitation requires the contractor to provide all necessary permits, dumpsters for haul-off, and chain of responsibility letters for all debris. Due to the site location on Foothills Drive, the contractor must provide traffic control and flaggers to manage heavy equipment and local traffic. Compliance requirements include active SAM.gov registration, adherence to Davis-Bacon wage standards, and the submission of certified payroll. Bidders must provide separate costs for labor and materials in their proposals.

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DEADLINE

Septic System InstallationThis subcontract opportunity involves the design and installation of residential wastewater treatment systems for prime contractors working on projects for the Confederated Tribes of the Colville Reservation. The scope of work includes performing soil percolation evaluations, designing the systems, and installing tanks, distribution components, and drainfields. The final deliverable is a fully permitted and inspected operational septic system. Qualified candidates must be certified septic designers and installers and are responsible for securing all necessary health department permits. The work will be performed in Nespelem, Washington, under NAICS code 238910. The solicitation was posted on October 15, 2026, with a response deadline of October 30, 2026.

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DEADLINE

Domestic Well Drilling and Water SystemsThis subcontract for Domestic Well Drilling and Water Systems involves the drilling and completion of domestic water wells for prime contractors on residential projects within the Confederated Tribes of the Colville Reservation. The scope of work encompasses the entire installation process, including drilling, casing, developing, testing, and disinfecting, as well as the installation of pumps, controls, pressure tanks, electrical connections, and pitless adapters to ensure a fully functional water supply. Qualified contractors must hold a valid well driller's license and water-quality testing certification to perform these services in Nespelem. Interested parties must submit their responses by October 30, 2026, for this project categorized under NAICS code 238910.

Confederated Tribes of the Colville Reservation

POSTED

DEADLINE

Site Development and EarthworkThis subcontract for Site Development and Earthwork involves performing comprehensive site preparation for prime contractors on residential projects for the Confederated Tribes of the Colville Reservation in Nespelem. The scope of work includes clearing, grading, building pad preparation, and foundation excavation, as well as the installation of foundation drainage and rain-drain discharge systems. The contractor is responsible for managing critical environmental factors, including erosion, stormwater, and dust control, while handling the import and export of structural fill. The ultimate objective is to deliver a graded and stabilized building pad that is fully ready for construction. Responses for this opportunity are due by October 30, 2026.

Confederated Tribes of the Colville Reservation

POSTED

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Dewatering and Water ManagementThis subcontract for Dewatering and Water Management involves performing water control and pumping operations for prime contractors on Lakehead Region Conservation Authority floodway projects. The selected provider is responsible for implementing sumps, well points, or pumping systems to maintain a dry working environment. Additionally, the contractor must treat suspended solids using sediment basins and filter bags in strict accordance with OPSS.MUNI 517 standards. A critical requirement of the contract is the submission of a comprehensive Dewatering and Water Management Plan. Interested parties must submit their responses by October 27, 2026, at 5:30 PM. The project falls under NAICS code 238910 and is managed through the bids&tenders platform.

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Floodway Sediment ExcavationThis subcontract for Floodway Sediment Excavation involves the removal of accumulated silt, sand, organic material, vegetation, and root matter for prime contractors working on Lakehead Region Conservation Authority floodway projects. The scope of work requires the use of heavy excavators and long-reach arms to achieve specified lines and grades, specifically ensuring that side slope transitions are constructed at a minimum of 2H:1V to meet design elevations for channel bottoms and side slopes. The opportunity was posted on October 15, 2026, with a response deadline of October 27, 2026. Classified under NAICS code 238910, the project is managed through the bids&tenders platform.

POSTED

DEADLINE

Neebing-McIntyre Floodway Clearing Project

Solicitation # LRCA-2026-01

The Neebing-McIntyre Floodway Clearing Project (LRCA-2026-01), issued by the Lakehead Region Conservation Authority, involves vegetation clearing and sediment excavation between the Redwood Ave Bridge and the Diversion Channel Outlet. The scope of work includes the excavation of approximately 6,133 cubic meters of floodway sediment, hauling and disposal of 5,782 cubic meters of material, and the removal of trees 150 mm and greater in diameter. Additional requirements include the installation of geotextile and rip-rap, site dewatering in accordance with OPSS.MUNI 517, traffic control following Ontario Traffic Manual Book 7, and the implementation of environmental controls. The contractor must submit a Dewatering and Water Management Plan for approval prior to starting work and ensure side slope transitions maintain a minimum slope of 2H:1V. Tenders must be submitted digitally via the Bids and Tenders portal by 2:00 PM EDT on October 27, 2026, as a single PDF. Mandatory submission documents include the Tender Form, Agreement to Bond, a 10% bid bond on CCDC Form 220, a Certificate of Insurance, and Supplementary Forms A through D covering subcontractors, alternatives, experience, and supervisory staff. Failure to complete these forms may result in tender rejection. Upon award, the successful contractor must provide a performance bond for 100% of the work value and a labor and materials payment bond for 50%. Payment is processed via progress certificates, contingent upon the submission of a WSIB certificate of clearance and a statutory declaration confirming all liabilities and liens have been discharged. Notably, the owner is not liable for interest on any amount payable to the contractor, and time is strictly of the essence for completion.

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School Demolition ServicesThis subcontract for School Demolition Services involves the complete demolition of the existing Bungay Elementary School building for prime contractors working on Town of Seymour school projects. The scope of work includes structural demolition of the facility, comprehensive site preparation, and the removal and disposal of all resulting debris to deliver a cleared site ready for new construction. Managed by DAS Procurement for the state of Connecticut, the project requires strict adherence to Connecticut prevailing wage laws and the provision of environmental disposal certifications. Interested parties must submit their responses by November 4, 2026, at 3:00 PM.

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Earthwork and GradingThis subcontract for Earthwork and Grading supports connectivity projects for the City of Covina. The selected contractor will be responsible for comprehensive site preparation, including clearing, grubbing, the excavation of existing surfaces, and the compaction of subgrade. Utilizing excavators and graders, the contractor must deliver a fully graded and compacted site that is ready for paving. The project is located in Covina, California, and requires the contractor to maintain DIR Registration. Interested parties must submit their responses by October 27, 2026. This opportunity falls under NAICS code 238910 and involves performing critical early-stage infrastructure work for prime contractors.

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Mechanical Demolition and DecommissioningThis subcontract for Mechanical Demolition and Decommissioning involves performing specialized mechanical system removals for prime contractors on University of California, Berkeley facility projects. The scope of work includes the decommissioning of the existing HX-15 and the partial demolition of various piping systems, specifically Low-Pressure Steam, Heat Exchanger, Cold Water, and Condensate Return Pump piping. The selected contractor is responsible for the delivery and proper disposal of all removed equipment and piping. The project is located in Berkeley, California, and requires strict adherence to DIR registration and prevailing wage compliance. Interested parties must submit their responses by the deadline of November 2, 2026. This opportunity falls under NAICS code 238910 and is focused on essential infrastructure decommissioning within the university campus.

University of California, Berkeley

POSTED

DEADLINE

Site Preparation and Grading ContractorThis subcontract opportunity is for a Site Preparation and Grading Contractor to support prime contractors on City of Tracy transit facility projects. The selected contractor will be responsible for site clearing, rough and fine grading, and soil stabilization to prepare the area for bus parking and storage. Work involves the use of heavy earthmoving equipment, such as rollers, dozers, and graders, to deliver a stabilized site ready for paving in accordance with City of Tracy engineering standards. The project is located in Tracy, California, under NAICS code 238910. Interested parties must submit their responses by the deadline of October 21, 2026.

POSTED

DEADLINE

Temporary Transit Bus Parking & Storage Yard

Solicitation # CIP 77586

Solicitation CIP 77586 is issued by the City of Tracy, California, for the development of a Temporary Transit Bus Parking and Storage Yard located in Tracy, CA 95377. The project scope encompasses comprehensive site preparation and grading, the construction of a vegetated swale for stormwater treatment, the installation and striping of bus parking stalls, and the installation of solar-powered parking lot lighting. Additionally, the contractor will be responsible for the placement of a shipping container to support operational and storage requirements. Detailed technical requirements are provided in a 241-page set of plans and specifications. The solicitation was posted on October 15, 2026, with a response deadline of October 21, 2026, at 3:00 PM PDT. Proposals must be submitted to the City Clerk's Office on the second floor of 333 Civic Center Plaza, Tracy, CA 95376. The primary point of contact for this effort is Yemane Haile. The project is categorized under NAICS code 238910, reflecting its nature as a specialized construction project for the local government entity.

Tracy CA, City of

POSTED

about 15 hours ago

DEADLINE

in 6 days

AI Contract Overview

This subcontract for Excavation and Subgrade Preparation involves performing critical earthwork for prime contractors on Greater Cincinnati Water Works facility projects. The scope of work includes executing pavement excavation, removing unsuitable soils, and managing subgrade shaping and compaction to meet required grades. Additionally, the contractor is responsible for providing temporary drainage and dewatering to ensure a stable, compacted subgrade that meets the approval of the Engineer according to ODOT and City Specifications. The opportunity is issued by the City of Cincinnati for the GCWW agency under NAICS code 238910. Interested parties must submit their responses by the deadline of October 13, 2026, at 4:00 PM. Further details and application processes are managed through the City of Cincinnati business opportunities portal.

General Info

Excavation and subgrade preparation for GCWW projects, due October 13, 2026.

Agency

City of Cincinnati → Gcww

NAICS

238910 - Site Preparation Contractors

Place of Performance

Not specified

Set-Aside

NONE

Documents

This scope was carved out of 273C909396.

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

View the prime solicitation

MAIN STATION EAST CONCRETE REPLACEMENT

AI Contract Breakdown

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Timeline

PhaseClosed

PostedSep 29

subcontract

Response DeadlineOct 13

Deadline has passed

Submission Closed

10/13/2026, 04:00:00 PM UTC

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Organization & Contact Information

AgencyCity of Cincinnati → Gcww

ContactsNo contacts available

OfficeN/A

Organization / AgencyCity of Cincinnati → Gcww

Office AddressN/A

ContactsNo contact information available

Full Description

Performs earthwork and subgrade preparation for prime contractors on Greater Cincinnati Water Works facility projects. Executes excavation for pavement, removal of unsuitable soils, and subgrade shaping and compaction to required grades. Provides temporary drainage and dewatering. Delivers a compacted, stable subgrade approved by the Engineer per ODOT/City Specifications.

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