This Government Contract opportunity from California was posted on September 30, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Earthwork and Subsurface Investigation

Closed

State & Local

Submission Closed10/21/2026, 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: 238910

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DEMOLITION OF THE CAMP HILL SQUARE APARTMENTS

Solicitation # 2027-RFP-033

Solicitation 2027-RFP-033 is a request for proposals issued by the Housing Opportunities Commission of Montgomery County (HOC) for the demolition of the Camp Hill Square Apartments in Gaithersburg, Maryland. The project scope involves the demolition of five apartment buildings containing 51 vacant units and a management office, including the removal of all above-grade structures, slabs, foundation walls, footers, and lead walks. While above-grade utilities must be removed, underground utilities are to be capped or abandoned in place, and all asphalt, curbs, and gutters are to remain. Additionally, the contractor is responsible for removing dumped materials from the neighboring Emory Grove Village parcel. The initial period of performance is four months from the Notice to Proceed, and the contractor is responsible for obtaining all necessary raze permits and adhering to the Montgomery County Approved Sediment Control Plan. Proposals must be submitted via the OpenGov Procurement Portal by November 13, 2026, at 12:00 pm. Evaluation is points-based, with 20% of the score weighted toward the schedule and 15% toward the price proposal. Award criteria emphasize safety, expedited completion, and quality assurance. Mandatory requirements include 100% payment and performance bonds, comprehensive insurance, and strict adherence to HOC Contractor and Subcontractor Background Screening Requirements. Compliance with the HOC Works Program, Davis-Bacon Wages, Maryland Prevailing Wage Laws, and HUD certifications regarding debarment and suspension is required. Payment terms include a 30-day processing window following approval, with a 5% retainage held until final acceptance by HOC.

POSTED

DEADLINE

Site Preparation and EarthworksThis subcontract for Site Preparation and Earthworks involves providing excavation and site preparation services for prime contractors at the Natural England facility located at Barrington Hill NNR. The scope of work includes cutting and rolling back existing fencing, removing old posts and disused gateways, digging out gateway areas to a minimum width of six metres, and managing ditches and stone culverts. The successful contractor is responsible for providing all necessary excavation equipment and waste disposal vehicles to deliver a fully cleared and excavated site. Compliance requirements include the provision of a CDM compliant Risk Assessment and the presence of a qualified first aider. This opportunity was posted on November 3, 2026, with a response deadline of November 27, 2026. The project falls under NAICS code 238910 and is managed by Natural England.

POSTED

DEADLINE

CLASS 2 LANDFILL PARTIAL CLOSURE

Solicitation # 27027

The County of Greenville is soliciting proposals for the partial closure of the Class 2 Unit 2 Landfill at the Twin Chimneys Landfill in South Carolina. The project scope involves significant earthwork, including the excavation of approximately 301,000 cubic yards of soil and the placement of 120,000 cubic yards of structural fill. Key construction elements include the installation of a stormwater pond, subgrade preparation, a perimeter berm, a stone access road, and various erosion control measures such as silt fencing, gabion baskets, seeding, and erosion control blankets. The County requires substantial completion within 210 calendar days, with a tentative notice to proceed date of December 18, 2026. The contract is governed by the EJCDC C-700 Standard General Conditions and C-800 Supplementary Conditions. Award will be based on a weighted point system, and the successful contractor must provide a South Carolina-licensed land surveyor and a licensed firm for soil testing. Performance and payment bonds equal to the contract price are required. Proposals must be submitted via the online portal by November 16, 2026. Strict adherence to material handling standards for geotextiles and compliance with South Carolina licensing and federal safety regulations is mandatory. Payment is due upon receipt of undisputed invoices, with a 30-day past-due threshold and a 60-day window before the contractor may suspend services.

POSTED

DEADLINE

High Street Recreational Field Project

Solicitation # 27-650-277A

The Town of North Attleborough, acting through the Town Manager and Board of Public Works, is soliciting bids for the High Street Recreational Field Project under solicitation number 27-650-277A. The project involves the construction of a 330-foot by 180-foot recreational field, including site preparation, grading, the removal of boulders and stone walls, and the installation of drainage, irrigation, an infiltration basin, and erosion and sediment controls. The scope concludes with the application of loam and seed or sod. The contract is structured as a lump sum bid with a performance period from January 4, 2027, through December 30, 2027. The contract will be awarded to the lowest responsible and eligible bidder who demonstrates the necessary skill, integrity, and experience. Bidders must provide a bid security bond equal to 5% of the total bid price, and the successful awardee must provide performance and payment bonds at 100% of the contract price. Compliance with Massachusetts General Laws, including prevailing wage rates and tax certifications, is mandatory. Additionally, all employees must complete a 10-hour OSHA-approved construction safety and health course. The Town maintains strict quality standards, requiring materials to be delivered in original manufacturer containers and reserving the right to test materials at the vendor's expense. Primary project contact is Steve Carvalho of Boro Concrete Community Field.

POSTED

DEADLINE

Roadway Drainage MaintenanceThis subcontract focuses on the routine maintenance and cleaning of roadway drainage systems for prime contractors operating within District 5 of the Georgia Department of Transportation. The scope of work includes clearing debris from culverts and cleaning ditches using specialized ditching and culvert cleaning equipment. All activities must be performed in strict accordance with the Drainage Maintenance Manual 2008 and the Biennial Draining Manual to ensure the delivery of clear and functional drainage systems across the district. The opportunity is categorized under NAICS code 238910 and was posted on November 3, 2026. Interested parties must submit their responses by the deadline of November 17, 2026. This project is managed under the Georgia Department of Transportation and is specifically targeted toward supporting infrastructure maintenance within the designated region.

Department of Transportation

POSTED

DEADLINE

General Construction & Site WorkThis subcontract for General Construction and Site Work supports facility projects within the Franklin-McKinley School District in San Jose, California. The scope of work involves providing prime contractors with essential services including selective structure demolition, cast-in-place concrete work, rough and finish carpentry, trenching, and various exterior site improvements to deliver prepared sites and structural supports. The opportunity was posted on November 3, 2026, with a response deadline of November 30, 2026. Classified under NAICS code 238910, the contract focuses on specialized construction and site preparation necessary for the district's infrastructure enhancements.

Franklin-McKinley School District

POSTED

DEADLINE

Trenching, Backfilling & CompactingThis subcontract involves providing excavation and site restoration services for electrical infrastructure projects within the Franklin-McKinley School District in San Jose, California. The scope of work requires the contractor to perform trenching for underground ducts, backfilling, and compacting using specialized equipment, including the application of sand encasement for conduits. All activities must be executed in strict compliance with Section 31 23 00 and all applicable local building codes. The project is categorized under NAICS code 238910 and is intended for a subcontractor working under prime contractors. Interested parties must submit their responses by the deadline of November 30, 2026. The primary deliverable is the successful completion of excavated trenches and properly compacted backfill to support the district's electrical infrastructure.

Franklin-McKinley School District

POSTED

DEADLINE

External Disabled Facilities Adaptations - Access SpecialistThis subcontract opportunity is for an Access Specialist to install external disabled facilities adaptations for prime contractors working on City and County of Swansea housing projects. The scope of work includes the construction of concrete or timber ramps, modification of external steps, ground preparation and leveling, and the installation of galvanized steel or aluminum handrails and grab rails. All work must be completed using appropriate paving and concrete materials while strictly adhering to accessibility slope and gradient standards. The contract focuses on the delivery of fully installed external ramps, steps, and railing systems. Interested parties must submit their responses by the deadline of November 30, 2026. This project falls under NAICS code 238910 and is managed by the City and County of Swansea.

City & County of Swansea

POSTED

DEADLINE

Earthwork, Excavation, and EmbankmentThis subcontract for Earthwork, Excavation, and Embankment involves the removal and installation of native materials for Local Public Agency civil construction projects in Calipatria, California. The scope of work requires the removal and disposal of 1,416 cubic yards of existing native material and the installation of 63 cubic yards of native material to subbase design grade. All operations must be performed using excavators, dozers, and graders to deliver a graded site that meets specific subbase design requirements. The project is governed by Caltrans Standard Specifications to ensure quality and compliance. Interested parties must submit their responses by the deadline of December 1, 2026. This opportunity is categorized under NAICS code 238910 and is associated with the City of Calipatria.

POSTED

DEADLINE

Install Concrete Pad For Metal Storage Building At Fire Station #63

Solicitation # FIRE-0302

The City of Santa Cruz is soliciting bids for the installation of a concrete pad and associated utilities to support a metal storage building at Fire Station #63. The project scope includes the demolition and removal of existing AC material, the installation of a concrete pad designed to support fire apparatus weighing approximately 55,000 lbs each, and the creation of a new bio-retention area. Additional requirements include the installation of a fire sprinkler trench approximately 40 feet long and 30 inches deep, as well as electrical trenching compliant with the 2022 California Electrical Code. The total project budget is capped at 200,000 dollars. The contract will be awarded to the lowest responsive and responsible bidder based on a firm-fixed fee. Bidders must submit their proposals via the City's e-Procurement Portal by 2:00 pm on November 19, 2026. Required submittals include a bid form, a non-collusion declaration, and at least three client references for similar projects completed within the last five years. The successful contractor must provide a bid bond initially, followed by performance and payment bonds from California admitted sureties within ten business days of the award. Compliance with CAL/OSHA safety regulations, prevailing wage laws, and the Santa Cruz Municipal Code regarding waste management is mandatory. Local business preferences are available, offering a 2% preference for businesses with a local office and an additional 4% for those with at least 50% local ownership.

POSTED

DEADLINE

Sewer Manhole AdjustmentThis subcontract opportunity involves the adjustment of existing sewer manholes for prime contractors working on County of Riverside road projects located in Corona, California. The scope of work requires adjusting manholes to the new finished grade to ensure they are flush with new pavement, a process that must be performed in coordination with the City of Corona Department of Water and Power. The contractor is responsible for providing all necessary manhole adjustment rings and frames to complete the task. The project is categorized under NAICS code 238910 and was posted on November 3, 2026. Interested parties must submit their responses by the deadline of December 2, 2026. Performance of the work will take place within the 92883 zip code area of Corona.

POSTED

DEADLINE

Earthwork and Site PreparationThis subcontract for Earthwork and Site Preparation involves providing clearing and excavation services for prime contractors on projects managed by the County of Riverside Transportation Department in Riverside, California. The scope of work includes clearing and grubbing, the roadway excavation of 1,009 cubic yards, and the installation and compaction of 505 cubic yards of Class 2 Aggregate Base, all performed in accordance with Caltrans Standard Specifications to deliver a prepared subgrade and installed aggregate base. The opportunity was posted on November 3, 2026, with a response deadline of December 2, 2026. Classified under NAICS code 238910, this contract focuses on specialized site preparation and earthmoving activities essential for the development of transportation infrastructure within the region.

County of Riverside Transportation Department

POSTED

about 9 hours ago

DEADLINE

in 29 days

AI Contract Overview

This subcontract for Earthwork and Subsurface Investigation is issued by the Business Services Department of Kern High School District in California. The selected contractor will be responsible for performing subsurface investigations and general earthwork for prime contractors on public works facility projects. The scope of work specifically includes excavation, grading, and site preparation in accordance with specifications 02 30 00 and 31 00 00, with the final deliverables being a fully graded site and detailed geotechnical reports. The opportunity was posted on September 30, 2026, and requires a response by October 21, 2026. Classified under NAICS code 238910, this contract focuses on specialized site preparation and geological analysis to ensure the structural integrity of public facility developments within the region.

General Info

Kern High School District subcontract for earthwork and subsurface investigation public works projects.

Agency

California → Business Services Department of Kern High School District

NAICS

238910 - Site Preparation Contractors

Place of Performance

CA, USA

Set-Aside

NONE

Documents

This scope was carved out of 6935.

The full solicitation package (5 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Vista Continuation High School Modernization: General Bid Package Miscellaneous Specialties

AI Contract Breakdown

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Timeline

PhaseClosed

PostedSep 30

subcontract

Response DeadlineOct 21

Deadline has passed

Submission Closed

10/21/2026, 09:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia → Business Services Department of Kern High School District

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → Business Services Department of Kern High School District

Office AddressN/A

ContactsNo contact information available

Full Description

Performs subsurface investigations and general earthwork for prime contractors on California public works facility projects. Conducts excavation, grading, and site preparation per specifications 02 30 00 and 31 00 00. Delivers a graded site and geotechnical reports.