Sonora Junction Shoulder Widening Project
Project Information
The Sonora Junction Shoulder Widening Project widened the existing paved shoulders on U.S. 395 in Mono County from Burcham Flat Road to the south side of the junction with State Route 108. Crews installed shoulder rumble strips, upgraded existing guardrails to Midwest Guardrail System, and corrected the super-elevations of three substandard curves. This project was meant to enhance roadway safety and make the highway accessible to all modes of transportation.
The preferred project alternative widened the highway shoulders to the standard 8-foot width. This alternative also included approximately 1,050 linear feet of retaining walls, stabilized cut slopes with anchored wire mesh, and extended or replaced existing culverts. Additionally, the preferred alternative called for the installation of wildlife undercrossing structures in two locations and wildlife exclusionary fencing to connect the two structures.
Photos from June 24, 2024. Click images for a larger view.
Photos from September 2024 full closure of U.S. 395 through the project. Click for a larger view.
Project Map
Environmental Document
The Final Environment Document for the Sonora Junction Shoulder Widening Project is available for public review upon request. To obtain a copy:
- Email us at D9PublicInfo@dot.ca.gov.
- Call us at (760) 872-0601.
- Write us at Caltrans Public Information Office, 500 S. Main Street, Bishop, CA 93514.
Project Cost
The estimated total cost of this project was $20.1 million.
- The construction phase was estimated to cost $16.8 million.
Project Timeline
Project Schedule (Subject to change):
- February 2021: Draft Environmental Document for Public Comment
- May 2021: Final Environmental Document and Alternative Chosen
- November 2023: Advertise
- March 2024: Contract Approval
- May 2024: Begin Construction
- September 4 - September 20, 2024: Full Closure of U.S. 395 to Facilitate Installation of Two Wildlife Crossings
- September 2025 - End of Construction
Construction PIO Contact
Michael Lingberg
Public Information Officer
Construction
Caltrans District 9
(760) 920-0280
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.