Main Street at Highway 101 Interchange in Templeton

Reconfiguration of the US 101 and Main Street Interchange in the community of Templeton.

Goal: Reconfigure the interchange to provide traffic congestion relief while accommodating pedestrians and bicycles.

Estimated Cost: Current alternatives range from $15 million to $27 million.

Proposed Alternatives:

Project Contacts

For questions or additional information please contact Genaro Diaz via email or phone: (805) 781-5279.


Project Updates

Templeton Area Advisory Group (TAAG) Special Meeting

This meeting took place December 6, 2017 at the Vineyard Elementary School. A powerpoint presentation was given by representatives of the County, San Luis Obispo Council of Governments, and Caltrans reviewing the goals of the project, proposed alternatives, estimated scheduling, and funding sources.

Town Hall Meeting #1

This meeting took place March 13, 2017 at the Templeton Community Center. A powerpoint presentation was given by representatives of the County, San Luis Obispo Council of Governments, and Caltrans reviewing the goals of the project, proposed alternatives, estimated scheduling, and funding sources.

Current Project Status

Phase 2 - Project Approval and Environmental Document


Phases & Milestones

Phase 1 - Project Initiation and Scoping

A Project Study Report was prepared by Caltrans to analyze various project alternative. Three project alternatives and a "no-build" alternative were determined viable options to carry forward for evaluation in Phase 2. The goal of this phase is to identify the project alternatives to be evaluated further in Phase 2. Funding for this stage consists of $250,000 from County Road Improvement Fees and $250,000 from San Luis Obispo Council of Government's Regional State Highway Account (RSHA) funds.

Estimated Date of Completion: July 2019

Phase 2 - Project Approval and Environmental Document

The goal of this phase is to evaluate the alternatives and obtain Caltrans approval. Funding for this stage consists of $750,000 from County Road Improvement Fees.

Estimated Date of Completion: 2025

Phase 3 - Design

The goal of this phase is to finalize the design. Funding is to be determined.

Estimated Date of Completion: 2027

Phase 4 - Construction

If funding is available and previous phases are completed on time, the earliest this project is anticipated to be in construction is in 2025. Funding is to be determined.

Estimated Date of Completion: To be determined (pending funding)