The race to reinvent State Route 37: Marsh revival buys time for future causeway

MANY, MANY YEARS and billions of dollars in the future, a 21-mile, four-lane causeway will skim above hundreds of acres of restored wetlands at the Bay’s northern edge, replacing traffic-clogged, often water-logged, State Route 37. This spring, despite last minute funding challenges that threatened to derail a key component, the first glimpses of that vision began coming into focus.

In April, Caltrans was scheduled to complete the first construction project related to the ultimate alignment of the new SR 37, a diverging diamond interchange at the eastern end of the highway in Vallejo.