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Riprap and Slope Protection Supply/Installation

Active
State & Local

Contract Overview

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

AI Contract Overview

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This subcontract, titled Riprap and Slope Protection Supply/Installation, is issued by Caltrans 2 in Redding, California. The primary objective of the project is the supply and installation of riprap, also known as rock armor, to safeguard drainage channels and slopes against erosion and scour. The project is categorized under NAICS code 237120 and was posted on August 14, 2026. Further details regarding the project can be accessed through the California Environmental Quality Act application tracking system.

General Info

Caltrans 2 subcontract for riprap and slope protection installation in Redding, California.

Agency

California → Caltrans 2 (Redding)

NAICS

237120 - Oil and Gas Pipeline and Related Structures ConstructionView NAICS

Place of Performance

CA

Set-Aside

NONE

Documents

This scope was carved out of Red Hill Culverts.

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

View the prime solicitation

AI Contract Breakdown

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Timeline

Posted

subcontract

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Organization & Contact Information

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AgencyCalifornia → Caltrans 2 (Redding)
ContactsNo contacts available
OfficeN/A
Organization / Agency
California → Caltrans 2 (Redding)
Office AddressN/A
ContactsNo contact information available

Full Description

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Placement of riprap (rock armor) to protect slopes and drainage channels from scour and erosion.

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Same NAICS industry code

NAICS: 237120
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Alturas Wastewater Treatment Plant Improvement Project
Solicitation # EPIMS-MOD-63461-R1
The City of Alturas is undertaking infrastructure improvements to enhance its wastewater management system by installing a new pipeline that will transport raw wastewater to offsite treatment ponds and land application areas. To minimize environmental disruption, the project employs horizontal directional drilling beneath three water bodies—the North Fork Pit River, South Fork Pit River, and an unnamed ephemeral tributary—each requiring a bore approximately 3,000 feet in length at depths between 60 and 80 feet. This approach avoids direct excavation within streambeds and reduces impacts on aquatic habitats. The project has been authorized under a Lake and Streambed Alteration Agreement issued by the California Department of Fish and Wildlife, in compliance with Fish and Game Code section 1602, ensuring regulatory oversight and environmental safeguards are met during construction. The initiative is part of broader efforts to modernize Alturas’s wastewater infrastructure, promoting public health and environmental stewardship by diverting untreated effluent from local waterways. The City of Alturas serves as the project applicant and primary point of contact, with Warren Farnam listed as the primary planner and Dyana Judnick of the California Department of Fish and Wildlife serving as the environmental scientist overseeing regulatory compliance. The project was forecasted for future consideration on June 10, 2026, and all activities are confined to the city’s jurisdiction in Modoc County, California, with no federal funding or set-aside provisions identified. The alignment and drilling methodology reflect a commitment to minimizing surface disturbance while achieving functional wastewater conveyance goals.
City of Alturas

POSTED

2 days ago

DEADLINE

N/A
View Details