Environmental and Design Phase
Purpose: The project will improve the off-ramp storage capacity and provide measured congestion relief on northbound US 101 at the SR 46 East off-ramp. Engineering Services will be kicking-off in Summer 2023 until Fall 2026.
Need: The traffic volumes on the US 101 northbound off-ramp to SR 46 east intermittently exceed the storage capacity of the ramp. Seasonal and weekend congestion on the off-ramp spills back to the US 101through lanes, resulting in slowing, congestion, and delays that will become a reoccurring issue over time. Due to these issues, some drivers use the outside shoulder, as if to create a de facto auxiliary lane, while other drivers divert to routes not intended for interregional travel. Caltrans has determined that incremental improvements are needed to address the off-ramp storage capacity and congestion.
Description of Work
SLOCOG and the California Department of Transportation proposes operational improvements on US 101 to State Route 46 East northbound off ramp in the City of Paso Robles, in San Luis Obispo County. Four alternatives have been developed for comparison. Three alternatives would increase the off-ramp throughput by widening the ramp and the Route 101/46 “Connector Bridge,” Bridge Number 49-0228G.
For more information on this project, contact John DiNunzio, SLOCOG, Regional Transportation Planner, at [email protected].
Additional background information can be found here.
