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2019 Climate Change Vulnerability Assessments

These Summary Reports and associated Technical Reports describe climate change effects in each of Caltrans’ 12 districts. The Summary Reports provided a high-level review of potential climate impacts to each district’s portion of the State Highway System, while the Technical Reports present detail on the technical processes used to identify these impacts.

District 1 October 2019

Eureka: Del Norte, Humboldt, Lake and Mendocino Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 1, 2019 
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 1, 2019 
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 1
Interactive Map

District 2 December 17, 2018

Redding: Lassen, Modoc, Plumas, Shasta, Siskiyou, Tehama, and Trinity Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 2, 2018
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 2, 2018
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 2
Interactive Map

District 3 November 21, 2019

Marysville / Sacramento: Butte, Colusa, El Dorado, Glenn, Nevada, Placer, Santa Clara, Sacramento, Sierra, Sutter, Yolo and Yuba Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 3, 2019
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 3, 2019
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 3
Interactive Map

District 4 December 27, 2017

Bay Area / Oakland: Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano and Sonoma Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 4, 2017
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 4, 2017
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 4
Interactive Map

District 5 October 2019

San Luis Obispo / Santa Barbara: Santa Barbara, San Luis Obispo, Monterey, San Benito and Santa Cruz Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 5, 2019
Summary Report (PDF)

District 5 Technical Report
Technical Report (PDF)

District 5 Map
Interactive Map

District 6 December 17, 2018

Fresno: Fresno, Kern, Kings, Madera, and Tulare Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 6, 2018
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 6, 2018
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 6
Interactive Map

District 7 September, 2019

Los Angeles: Los Angeles and Ventura Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 7, 2019
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 7, 2019
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 7
Interactive Map

District 8 September, 2019

San Bernardino: Riverside and San Bernardino Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 8, 2019
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 8, 2019
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 8
Interactive Map

District 9 November 21, 2019

Bishop: Inyo, Mono and Eastern Kern Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 9, 2019
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 9, 2019
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 9
Interactive Map

District 10 November 21, 2019

Stockton: Alpine, Amador, Calaveras, Mariposa, Merced, San Joaquin, Stanislaus and San Tuolumne Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 10, 2019
Summary Report (PDF)


Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 10
Interactive Map

District 11 September, 2019

San Diego: San Diego and Imperial Counties

Caltrans Climate Change Vulnerability Assessment Summary Report - District 11, 2019
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 11, 2019
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 11
Interactive Map

District 12 November 21, 2019

Orange County

Caltrans Climate Change Vulnerability Assessment Summary Report - District 12, 2019
Summary Report (PDF)

Caltrans Climate Change Vulnerability Assessment Technical Report - District 12, 2019
Technical Report (PDF)

Caltrans Climate Change Vulnerability Assessment Interactive Map - District 12
Interactive Map