U.S. 101 Paso Robles Barrier Project Barrier Separation to Adjacent System

The U.S. 101 Paso Robles Barrier Project, managed by Caltrans District 5, involves the installation of a positive barrier on the right side of the northbound freeway lanes on US 101 in San Luis Obispo County. Located between Post Miles 54.33 and 54.82 in Paso Robles, the project is designed as a Safe System initiative to reduce collision severity. The scope of work includes the installation of 500 linear feet of Midwest Guardrail System and 2,100 linear feet of Type 60M concrete barrier, featuring specific openings for overside drains at Post Miles 54.47 and 54.65. Additionally, the project requires the installation of two gates at the existing right-of-way fence, with all activities conducted within the existing Caltrans right-of-way. This forecast project is proposed for funding through the State Highway Operation Protection Program Minor A Proactive Safety Collision Severity Reduction Program for the 2026/27 fiscal year. The project is classified under NAICS code 237310 and has been granted a Notice of Exemption under Class 1(c) as an alteration of an existing facility with no significant environmental impacts anticipated. Administrative coordination is led by Lucas Marsalek and Laura Riccardelli.