South Coast 101 Drainage Project


Project Description

The California Department of Transportation (Caltrans) proposes to restore 23 drainage culverts and install two Transportation Management System (TMS) elements along U.S. Route 101 in Santa Barbara County. Culverts are at various locations along the 52-mile stretch from the Santa Barbara-Ventura County line to the Old Coast Highway, approximately four miles south of Buellton. Transportation Management System elements are located within the first 2 miles of the Santa Barbara-Ventura County line.


project map 


Project Benefits


The purpose of this project is to improve existing highway drainage and transportation data systems and:

  • Restore damaged culverts in poor or fair condition to maintain the function of the drainage system and protect the embankments and roadway from potential slope failure.
  • Replace or install new Transportation Management System (TMS) elements to maintain an efficient Intelligent Transportation System (ITS).


The project need for the culvert and Transportation Management System scope is as follows:

  • As documented in Drainage System Reports from the Culvert Inventory, culverts have been identified within the project limits that show varying degrees of damage. If culverts are allowed to deteriorate any further, future roadway failure is possible.
  • Real-time traffic information is needed for District 5 Transportation Management Center (TMC) to collect data to be archived into the Caltrans Performance Measurement System (PeMS) for historical analysis and public use.


Estimated Funding Breakdown

Funding Source Funding Amount
Local Not Applicable
State $925,607
Federal $7,221,392
Construction Cost $18,662,000


Proposed Project Schedule

 Process Date
Final Environmental document to be completed Fall 2024
Right of way acquisition to be completed Fall 2026
Design to be completed Fall 2026
Advertise Fall 2027
Construction to begin Spring 2028
Construction to be completed Winter 2029


Project Contact

Amy Donatello, Project Manager
Phone: 805-276-0811

District 5 Public Information Office
Phone: 805-549-3237


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