SR 9 - Unnamed Tributary to Pilchuck Creek - Fish Passage - Project map

A map showing the location of a culvert under SR 9 that will be replaced.

In September 2021 WSDOT replaced a culvert that is failing underneath SR 9 in north Snohomish County near the North Centennial Trail Trailhead. The project required a ten-day closure of SR 9, including vehicles, bicycles and pedestrians. A signed detour was in place.