Caltrans says the road could be closed in both directions near Castanea Ridge Road for up to a week while crews clean up the mess.
RELATED: Niles Canyon Road in Fremont reopened in both directions after large boulder removed
@CaltransD4 has blocked SR-35 in both directions just south of Alpine Road to just north of the @SCCgov county line due to a sink hole. Plan your route accordingly as we don't know how long this stretch of road will be closed. @SMCSheriff @SCCoSheriff pic.twitter.com/DhQmEqiHaj— CHP Redwood City (@CHP_RedwoodCity) February 3, 2019
Caltrans has Highway 35 in the Santa Cruz Mountains closed in both directions due to sinkhole. pic.twitter.com/hetxHHHmPq— Matt Keller (@MattKellerABC7) February 4, 2019
Check drive times and traffic maps.