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Caltrans mulls hybrid approach to adapt Eureka-Arcata corridor to sea level rise

July 15, 2022

Caltrans is continuing to evaluate its options for mitigating the effects of sea level rise on the Arcata-Eureka corridor on the way to developing an overall adaptation plan. The agency’s representatives say it’s likely to take a hybrid approach.

Coastal Commission Reviews Sea Level Mitigation Measures for Arcata-Eureka Highway 101 Corridor

July 15, 2022

Local coastal experts expect Humboldt Bay’s shoreline to rise by as much as three feet in the next 40 years. One area of particular concern in the Humboldt Bay region is the Highway 101 corridor between Arcata and Eureka

Caltrans Considers Alternatives to 'Armoring' 101 Against Sea Level Rise

November 11, 2021

Caltrans is considering a “living shoreline” along U.S. 101 to protect against the tides.

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Caltrans welcomes you to our online resources to help you stay informed regarding our planning and project efforts in District 1. You can find information regarding our efforts along the Highway 101 Corridor and in each of the 4 counties covered by District 1.

Map of Counties

There are 23 state highways located within District 1. In many of these areas, the State Highway System (SHS) serves as the “main street.” The SHS also provides outlying communities access to emergency services.

To view the locations along the SHS that are the most at-risk due to climate change, click the link below.

Caltrans District 1 Vulnerability Assessment Map