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Transforming Sea Level Rise Into An Opportunity

October 2023

When Jason Patton bikes from his home in Manila, California, to the nearby town of Arcata, he rides along a peninsula at the edge of Humboldt Bay. His travels lead past levees that were built in the late 1880s to protect this narrow slip of land from the sea. But lately, their protection has started to feel precarious.

Cal Poly Humboldt Sea Level Rise Institute Annual Report - 2022-2023

August 2023

As a core vision, the Cal Poly Humboldt Sea Level Rise Institute (SLRI) “envisions a diverse network of collaborators working together across disciplines, sectors, and ways of knowing to develop sea-level rise research and planning that informs equitable, sustainable, and community-centered local climate action.” The SLRI had a productive academic year from 2022 - 2023 in service of this vision.

Transformative Sea-Level Rise Research and Planning

July 2023

Sea-level rise (SLR) is and will continue to be a pressing issue in the rural, North Coast region of California, especially since nearby Wigi (or Humboldt Bay) is experiencing one of the fastest rates of relative SLR on the U.S. West Coast. In this paper, we argue that SLR presents a transformative opportunity to rekindle environmental relationships and reshape the future of the California North Coast and beyond.

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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