Psst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveCLEATUS Webinar: AI for Government Contracting — Free Webinar — Wednesday, October 28 at 2:00 PM ET

Register Free →

Search

Top

Back to Contracts

Erosion Control and Compost Materials

Active

State & Local

Response Deadline11/18/2026, 10:00:00 PM UTC

Contract Overview

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

AI Contract Overview

Show more

This subcontract for the California Department of Transportation involves the supply and installation of erosion control measures and specialized compost to stabilize soil and protect jurisdictional waters. The scope of work requires the application of compost according to specific gradation requirements and the implementation of sediment barriers specifically designed to protect Nojoqui Creek and Species Protection Areas. All activities must strictly comply with Section 21-2.02K and applicable Water Quality Certifications to ensure the delivery of fully installed erosion control systems. The opportunity is categorized under NAICS code 238910 and was posted on October 26, 2026. Interested parties must submit their responses by the deadline of November 18, 2026. This project is intended for prime contractors operating on Caltrans projects who require specialized environmental stabilization services.

General Info

Agency

California Department of Transportation (Caltrans)

NAICS

238910 - Site Preparation Contractors

Place of Performance

CA, USA

Set-Aside

NONE

Documents

This scope was carved out of 05-1K4514.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Construction On State Highway In Santa Barbara County Near Buellton At Various Locations From 3.6 Miles North Of Route 1/101 Separation To 1.3 Miles South Of Route 101/246 Separation

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PostedOct 26

subcontract

Response DeadlineNov 18

Submission deadline

Response Deadline

11/18/2026, 10:00:00 PM UTCin 23 days

Ready to pursue this opportunity?

Start your free trial to track this contract, build proposals with AI assistance, and manage your pipeline.

Organization & Contact Information

Show more

AgencyCalifornia Department of Transportation (Caltrans)

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia Department of Transportation (Caltrans)

Office AddressN/A

ContactsNo contact information available

Full Description

Show more

Supplies and installs erosion control measures and specialized compost for prime contractors on Caltrans projects to stabilize soil and protect jurisdictional waters. Applies compost per specific gradation requirements and implements sediment barriers to protect Nojoqui Creek and Species Protection Areas (SPA 2). Complies with Section 21-2.02K and Water Quality Certifications. Delivers installed erosion control systems.

Similar Contracts

Same NAICS industry code

Temporary Shoring and Cofferdams

City of Covington

POSTED

about 3 hours ago

DEADLINE

in about 1 month

Dewatering and Temporary Water Control

City of Covington

POSTED

about 3 hours ago

DEADLINE

in about 1 month

Erosion and Sedimentation Control

City of Covington

POSTED

about 3 hours ago

DEADLINE

in about 1 month

Earthwork, Grading, and Excavation

City of Covington

POSTED

about 3 hours ago

DEADLINE

in about 1 month

Site Clearing and Grubbing

City of Covington

POSTED

about 3 hours ago

DEADLINE

in about 1 month

Water Pollution Control and Site PrepThis subcontract for Water Pollution Control and Site Prep involves the installation of temporary construction entrances and concrete washout areas for prime contractors on California Department of Transportation projects. The scope of work focuses on utilizing aggregate to construct entrances that prevent track-out and implementing concrete washout containment systems in strict accordance with Division II standards to ensure functional site preparation. The project is located in Desert Hot Springs and falls under NAICS code 238910. Interested parties must submit their responses by the deadline of December 2, 2026.

California Department of Transportation

POSTED

about 4 hours ago

DEADLINE

in about 1 month

Cast-In-Drilled-Hole (CIDH) Concrete Pile InstallationThis subcontract involves the drilling and installation of Cast-In-Drilled-Hole concrete piles for Caltrans foundation projects. The selected contractor is responsible for drilling piles to specific diameters and depths, managing drilling fluids, and executing construction under wet conditions. A critical component of the scope includes the handling and disposal of lead-contaminated excavated materials in strict accordance with Cal/OSHA and CA RWQCB Region 3 regulations. To ensure quality and compliance, the contractor must hold an ACI Concrete Field-Testing Technician Grade 1 certification. This project is categorized under NAICS code 238910 and is managed by the State of California Department of Transportation. Responses for this opportunity are due by November 19, 2026.

STATE OF CALIFORNIA DEPARTMENT OF TRANSPORTATION

POSTED

about 4 hours ago

DEADLINE

Construction On State Highway In Santa Barbara County Near Buellton At Various Locations From 3.6 Miles North Of Route 1/101 Separation To 1.3 Miles South Of Route 101/246 Separation

Solicitation # 05-1K4514

The California Department of Transportation (Caltrans) is soliciting bids for contract 05-1K4514, which involves landscape planting and erosion control on a State Highway in Santa Barbara County near Buellton. The project scope covers various locations from 3.6 miles north of the Route 1/101 separation to 1.3 miles south of the Route 101/246 separation. The estimated project cost is 480,000 dollars, and bids must be submitted on a unit price basis via the Bid Express website by 2:00 p.m. on November 18, 2026. The project timeline is divided into two phases: general construction must be completed within 40 working days, while plant establishment work is allotted 750 working days, bringing the total project duration to 790 working days. A minimum of 79,000 dollars must be allocated for plant establishment work. The contract includes a 5 percent Disabled Veteran Business Enterprise (DVBE) goal and specific Small Business Enterprise (SBE) participation requirements. Bidders must provide security equal to at least 10 percent of the bid and submit a subcontractor list and certification status at the time of bidding. Compliance requirements include adherence to 2025 Standard Specifications and Standard Plans, as well as prevailing wage rates determined by the California Department of Industrial Relations. Quality assurance requires QC personnel to hold ACI Concrete Field-Testing Technician Grade 1 certification. Additionally, the contractor must provide environmental product declarations for hot mix asphalt and concrete and follow specific marking requirements for temporary concrete barriers. Final acceptance is contingent upon the submission of a Final Report on the Utilization of Small Business Enterprise within 10 days of contract acceptance.

California Department of Transportation (Caltrans)

POSTED

about 4 hours ago

DEADLINE

Drainage and Culvert InstallationThis subcontract for Drainage and Culvert Installation involves the installation of alternative pipe culverts and precast concrete drainage structures for prime contractors on California Department of Transportation highway projects. The scope of work includes the installation of reinforced concrete box culverts, wingwalls, headwalls, and alternative pipe culverts in sizes ranging from 24 to 42 inches to deliver complete drainage systems. All work must be performed in strict compliance with the USACE 404 Permit and the CDFW 1602 Streambed Alteration Agreement. The solicitation was posted on October 26, 2026, with a response deadline of December 3, 2026, falling under NAICS code 238910.

California Department of Transportation

POSTED

about 4 hours ago

DEADLINE

in about 1 month

Earthwork & Grading

Lake Elsinore Unified School District

POSTED

about 4 hours ago

DEADLINE

Site Demolition & Clearing

Lake Elsinore Unified School District

POSTED

about 4 hours ago

DEADLINE

Site Preparation and EarthworkThis subcontract for Site Preparation and Earthwork involves performing site clearing, excavation, and grading for prime contractors on facility projects within the Lake Elsinore Unified School District. The scope of work specifically includes the demolition of existing play equipment and the excavation and grading of the play pit to a maximum 2% grade, ending 8 inches below grade. The contractor is responsible for providing tractor access into the pit to ensure the site is fully cleared and graded for subsequent subbase and equipment installation. The project is located in Wildomar, California, and falls under NAICS code 238910. Interested parties must submit their responses by the deadline of November 12, 2026.

Lake Elsinore Unified School District

POSTED

about 4 hours ago

DEADLINE

More opportunities from California Department of Transportation (Caltrans)

Same awarding agency

Water Hauling ServicesThis subcontract for Water Hauling Services involves the supply and transport of water for prime contractors working on California Department of Transportation projects. The selected provider is responsible for sourcing water from approved external locations and delivering it via tankers to temporary irrigation systems for construction and irrigation purposes. A critical requirement of the contract is the strict prohibition against drafting water from the creek, and the provider must ensure full compliance with all local water transport regulations. The contractor is expected to deliver the specific water volumes required by the project watering schedule. This opportunity is categorized under NAICS code 484220 and was posted on October 26, 2026, with a response deadline of November 18, 2026.

Specialized Freight (except Used Goods) Trucking, Local

POSTED

about 4 hours ago

DEADLINE

Environmental Monitoring and Biological ServicesThis subcontract for Environmental Monitoring and Biological Services supports prime contractors on California Department of Transportation projects. The scope of work focuses on biological monitoring and environmental compliance, specifically overseeing the relocation of stockpiled vegetation and ensuring adherence to Water Quality Certifications, Streambed Alteration Agreements, and Biological Opinions from the US Department of Commerce and Interior. The selected provider will be responsible for managing invasive species using specialized biological survey equipment and delivering detailed biological monitoring logs and compliance reports. This opportunity falls under NAICS code 541620, with a response deadline set for November 18, 2026.

Environmental Consulting Services

POSTED

about 4 hours ago

DEADLINE

Plant Establishment and Maintenance ServicesThis subcontract for Plant Establishment and Maintenance Services involves providing installation, watering, and long-term vegetation maintenance for prime contractors on California Department of Transportation projects. The scope of work requires planting cuttings between November 15 and February 15, executing a four-period seasonal watering schedule, and managing pests and invasive plants. To ensure the delivery of healthy, established vegetation, the contractor must utilize temporary irrigation systems and remote irrigation control software while adhering to Caltrans Standard Specifications Section 20. The opportunity is categorized under NAICS code 561730 and was posted on October 26, 2026, with a response deadline of November 18, 2026. This project focuses on maintaining high environmental standards for state infrastructure through specialized landscaping and irrigation management.

Landscaping Services

POSTED

about 4 hours ago

DEADLINE

Fencing & Railing InstallationThis subcontract opportunity is for the installation of highway fences, railings, and barriers on Caltrans highway projects in Sacramento, California. The selected provider will work for prime contractors to deliver installed safety fences and road barriers in strict accordance with Division VIII specifications, standard plans, and specifically Section 80 for fences and Section 83 for railings and barriers. The solicitation was posted on September 22, 2026, with a response deadline of November 5, 2026. This project falls under NAICS code 238990 and is managed through the California Department of Transportation.

All Other Specialty Trade Contractors

POSTED

about 1 month ago

DEADLINE

Drainage & Culvert Inspection/RepairThis subcontract for the California Department of Transportation involves the inspection and repair of drainage facilities and culverts on highway projects. The selected provider will be responsible for conducting culvert joint inspections, analyzing lateral pipe openings, and implementing corrective actions to ensure compliance with Division VII, Section 71. A critical requirement for this engagement is the capability to perform human entry evaluations of culverts to ensure thorough assessment and repair. The project is based in Sacramento, California, under NAICS code 238910. The contractor is expected to deliver detailed inspection reports and fully repaired drainage systems. Interested parties must submit their responses by the deadline of November 5, 2026.

Site Preparation Contractors

POSTED

about 1 month ago

DEADLINE

Environmental Sampling & Water Quality MonitoringThis subcontract for Environmental Sampling and Water Quality Monitoring supports prime contractors on Caltrans highway projects in Sacramento. The selected provider will be responsible for performing water quality sampling, analysis, and reporting, specifically focusing on sampling and analysis days and the preparation of Water Quality Annual Reports in accordance with Division II Section 13. The role requires significant technical expertise in water quality analysis and regulatory reporting to ensure the accurate delivery of sampling data and annual reports. Interested parties must submit their responses by November 5, 2026, under NAICS code 541620.

Environmental Consulting Services

POSTED

about 1 month ago

DEADLINE

Traffic Control & Safety ServicesThis subcontract for Traffic Control and Safety Services supports prime contractors on Caltrans highway projects in Sacramento. The scope of work involves providing temporary traffic control, flagging, and the installation of safety signage, including construction area signs, portable radar speed feedback signs, and Automated Flagger Assistance Devices in accordance with specific regulatory sections. The opportunity was posted on September 22, 2026, with a response deadline of November 5, 2026. Classified under NAICS code 561990, the contract focuses on ensuring safe traffic flow and the proper deployment of temporary signage for the California Department of Transportation.

All Other Support Services

POSTED

about 1 month ago

DEADLINE

Earthwork & Erosion ControlThis subcontract for the California Department of Transportation involves providing grading, excavation, and erosion control services for prime contractors on highway projects in Sacramento. The scope of work includes general earthwork, the application of dust palliatives, and erosion control measures such as hydroseeding, with a requirement to utilize automated machine guidance to deliver a graded site and stabilized slopes. The opportunity was posted on September 22, 2026, with a response deadline of November 5, 2026. Classified under NAICS code 238910, the contract focuses on specialized civil engineering construction and earthwork activities to support Caltrans infrastructure projects.

Site Preparation Contractors

POSTED

about 1 month ago

DEADLINE

Electrical Systems InstallationThis subcontract for Electrical Systems Installation involves the installation of highway electrical systems and infrastructure for prime contractors on Caltrans projects. The work must be performed according to the specifications in Division X, Section 87, and requires the oversight and certification of a Registered Electrical Engineer to ensure the delivery of fully operational systems. The project is located in Sacramento, California, under NAICS code 238210. Interested parties must submit their responses by the deadline of November 5, 2026.

Electrical Contractors and Other Wiring Installation Contractors

POSTED

about 1 month ago

DEADLINE

Structural Concrete & Reinforcing Steel InstallationThis subcontract for Structural Concrete and Reinforcing Steel Installation supports Caltrans highway projects in Sacramento. The selected provider will be responsible for performing formwork, placing reinforcing steel, and pouring structural concrete for wingwalls, specifically adhering to Item 010124 and Item 010119 under Sections 51 and 52. The contractor must comply with all prevailing wage requirements and deliver completed structural elements to the prime contractor. This opportunity, categorized under NAICS code 238110, was posted on September 22, 2026, with a response deadline of November 5, 2026.

Poured Concrete Foundation and Structure Contractors

POSTED

about 1 month ago

DEADLINE

Asphalt Concrete Supply & PavingThis subcontract for Asphalt Concrete Supply and Paving involves the production and installation of hot mix asphalt for prime contractors on Caltrans highway projects in Sacramento. The scope of work requires the delivery of a completed paved asphalt road surface in accordance with Section 39-2 standards. Key compliance requirements include adherence to Buy America and Build America regulations, as well as the provision of facility-specific Environmental Product Declarations for plants producing 2,250 tons or more. The response deadline for this opportunity is November 5, 2026.

Highway, Street, and Bridge Construction

POSTED

about 1 month ago

DEADLINE

Ready to Pursue This Opportunity?

Get AI-powered intelligence on this solicitation and the ones like it

Every page of the solicitation package shredded into a compliance breakdown

AI-powered matching based on your capabilities and past performance

Competitor and incumbent history on the requirement

Automated alerts on amendments, Q&A deadlines, and award

Join 750+ contractors already using CLEATUS