RSP Fabric (Class 8) Supply and Installation

The contract entails the supply and installation of RSP fabric Class 8 beneath a rock slope protection layer to serve as a separation and filtration medium, ensuring proper drainage and preventing soil migration into the rock layer. This work is critical for long-term slope stability and erosion control in infrastructure projects managed by Caltrans, District 4 – Bay Area/Oakland, and must be executed in strict compliance with engineering specifications for geosynthetic materials used in transportation applications. The task is structured as a subcontract under NAICS code 326121, which corresponds to plastic product manufacturing, indicating the material is a manufactured synthetic fabric designed for civil engineering purposes. The contract was posted on July 27, 2026, and is tied to a specific Caltrans project identified by the UI link, though no solicitation number or set-aside details are provided. Performance location and point of contact information are not specified, suggesting the work may be distributed across multiple sites within District 4’s jurisdiction. The fabric must meet Class 8 standards for tensile strength, puncture resistance, and filtration efficiency to function effectively as a barrier between soil and rock, maintaining structural integrity over time under dynamic environmental and load conditions. Contractor qualifications will likely require proven experience with geosynthetics in state transportation projects and adherence to Caltrans material and installation guidelines.