California Department of Transportation

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Questions, comments, or suggestions pertaining to construction activities or travel throughout the District can be directed to the Public Information Officer.


Hwy 101/Brisco Road Interchange Modification Project


This project consists of proposed improvements to 1.5 miles of Highway 101 and adjacent roads in the City of Arroyo Grande, in San Luis Obispo County. The proposed work includes, but is not limited to: relocation of ramps, modification to bridge structures, addition of auxiliary lanes, additional turn lanes. Two Build Alternatives are currently under evaluation to alleviate congestion at peak travel times.

Agency Roles

The City of Arroyo Grande has taken on the role of implementing all phases of this project and therefore is managing the scope, cost and schedule of each project component. The California Department of Transportation (Caltrans) as the owners and operators of the highway facility must review and authorize all proposed modifications. The City of Arroyo Grande has taken on the role of lead agency for compliance with the California Environmental Quality Act (CEQA) and Caltrans is the lead agency for compliance with the National Environmental Policy Act (NEPA).


Two draft environmental documents will be made available to the public when completed, they are:

Construction dates have not yet been determined.


Jim Shivers
District 5 Public Information Officer
(805) 549-3237

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Last updated: April 12, 2018