State Route 37 is at risk from sea level rise: MTC and the Bay Area Toll Authority are working to protect this vital transportation link

Highway 37 flooded

State Route 37 is facing numerous challenges — including sea level rise — and MTC and the Bay Area Toll Authority are looking to address those issues. They are explored here.

Highway 37 cuts through delicate wetlands but also provides a critical link between the Bay Area's northern counties.

About 47,000 vehicles a day use the 21-mile highway that skirts the northern shore of San Pablo Bay, delivering commuters and goods. But climate change is already affecting the highway and flooding on the roadway caused its closure for 28 days in 2017.

Traffic backups also continue to vex the corridor. A team approach has been developed to address the concerns. For more information visit

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