State Route 1, State Route 41, and Main Street Intersection Improvement Project
Upcoming Public Meeting on Thursday, November 12, 2026 from 5:15PM to 7:15PM at Morro Bay High School at 235 Atascadero Road, Morro Bay, CA 93442.
Project Description
The California Department of Transportation (Caltrans) in cooperation with the San Luis Obispo Council of Governments (SLOCOG) proposes to convert the two existing intersections at the conjunction of the State Route 1 northbound ramps, State Route 41, and Main Street into a six leg, single-lane roundabout in the city of Morro Bay to address traffic operational deficiencies and improve multimodal access. The project would include the following frontage improvements:
Sidewalk and driveway modifications and installation of new landscaped areas along Main Street on the southern end of the project.
Construction of a shared-use path, construction of driveway modifications, and installation of landscaping at the USA Gas Station parcel.
Construction of a shared-use path, construction of driveway and sidewalk modifications, and installation of landscaping at the Morro Bay Propane and U-Haul parcel at the northeast corner of the intersection.

Project Benefits
Purpose
The purpose of the project is to improve the State Route 1 northbound ramps, State Route 41, and Main Street intersections to address traffic operational deficiencies and improve multimodal access.
Need
The intersections of the State Route 1 northbound ramps, State Route 41, and Main Street have been identified as operationally deficient at certain times of the day and year, where queuing in four legs of the intersection exceeds the available storage.
Traffic patterns at the State Route 1 northbound ramps, State Route 41, and Main Street intersections are challenging to navigate, especially for vulnerable road users, like the disabled, elderly, and Morro Bay High School students. Vehicles on the northbound off-ramp and northbound Main Street legs during the AM peak are delayed in trying to find gaps in vehicular and pedestrian traffic to make left turns to reach their destination. The conflicts in all directions of travel lead to operational challenges and extended delays. Those delays also lead to traveler delays on other legs of the intersection.
Estimated Funding Breakdown
| Funding Source | Funding Amount |
|---|---|
| Local | $0 |
| State | $5,030,000 (More to be determined) |
| Federal | $2,800,000 (More to be determined) |
| Construction Cost | $16,400,000 |
Proposed Project Schedule
| Process | Date |
|---|---|
| Final environmental document completed | Fall 2026 |
| Right-of-way acquisition completed | Spring 2027 |
| Design to be completed | Spring 2028 |
| Advertise | Winter 2029 |
| Construction to begin | Spring 2029 |
| Construction to be completed | Summer 2030 |
Project Contact
Thomas Martin - Project Manager
Phone: (805) 276-0964
Email: thomas.martin@dot.ca.gov
Matt Fowler - Senior Environmental Planner
Email: SR1-SR41-MainSt@dot.ca.gov
District 5 Public Information Office
Phone: (805) 549-3318
Email: info-d5@dot.ca.gov
Documents
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Public Meeting Information
Upcoming Public Meeting on Thursday, November 12, 2026 from 5:15PM to 7:15PM at Morro Bay High School at 235 Atascadero Road, Morro Bay, CA 93442.
Title VI Information
The California Department of Transportation (Caltrans) assures that no person shall, on the basis of race, color, or national origin, be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity receiving Federal financial assistance, as required by Title VI of the Civil Rights Act of 1964, as amended, the Civil Rights Restoration Act of 1987, and Federal Executive Order 12898 (Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations).
Caltrans will make every effort to ensure nondiscrimination in all of its programs and activities, whether they are federally funded or not, and that services and benefits are fairly distributed to all people, regardless of race, color, or national origin. In addition, Caltrans will facilitate meaningful participation in the transportation planning process in a nondiscriminatory manner.
- Title VI Brochures
- Title VI brochures in various languages