Kern Canyon Culvert Rehabilitation

Graphic of project logo


Project Description

The California Department of Transportation proposes to repair, replace, and clean culverts on State Route 178 from 1.6 miles east of Rancheria Road to Vista Grande Drive in Kern County. Two new culverts and one overside drain will be built, 355 roadside signs will be replaced and various Intelligent Transportation Systems will be installed at 11 locations.


Graphic depicting the project location on State Route 178, in Kern County


Project Benefits


Culverts on State Route 178 are perforated and heavily rusted. They have damaged end treatments, joint separations, and need sediment/debris removal. These culverts have reached or exceeded their design life.


The project is needed to maintain proper drainage and extend the life of the culverts. All existing roadside signs are on wood posts and would be replaced with new metal beams except for seven wood posts which are located in a cultural site. These seven wood posts will remain in place and only the sign panels will be replaced. The new metal beams are needed to meet current Caltrans standards.


Estimated Funding Breakdown

Construction Cost:  $11,950,000


Proposed Project Schedule

Process Date
Final environmental document to be completed October 2020
Right-of-way acquisition to be completed August 2021
Design to be completed January 2022
Advertise April 2022
Construction to begin August 2022
Construction to be completed August 2023


Project Contact

Sunil Gandrathi, Project Manager
Phone:  (559) 709-8779

Som Phongsavanh, Environmental Planner
Phone:  (559) 246-8601

District 6 Public Information Office
Phone:  (559) 444-2409




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.