Underground Conduit Installation (1.25” and 2” HDPE)

The contract involves the installation of 1.25-inch and 2-inch high-density polyethylene conduits within trenches ranging from 12 to 48 inches deep, positioned along transportation rights-of-way on U.S. Route 101 and California State Route 1. Work includes all phases of excavation, conduit placement, and backfilling, requiring adherence to specific engineering and safety standards for subsurface utility installations in active roadway corridors. The project is scoped to occur in the Mill Valley area under Caltrans District 4, with the work falling under NAICS code 238990 for other specialized construction activities. This is a subcontract opportunity posted on July 2, 2026, aimed at supporting infrastructure development within state transportation corridors. The location focuses on critical coastal highways requiring careful coordination with existing utilities and traffic management protocols. Contractors must have the capability to perform trenching and conduit work in challenging environments with minimal disruption to public travel, ensuring compliance with state and federal regulatory requirements for underground utility placement. All work must be completed within the designated rights-of-way, and performance is expected to meet Caltrans standards for durability, alignment, and long-term integrity of the installed infrastructure.