Sinkhole takes out lane, closes Skyline Boulevard

A sinkhole forced the closure of State Route 35, or Skyline Boulevard, on the San Mateo/Santa Clara County border on Feb. 4, 2019. A sinkhole forced the closure of State Route 35, or Skyline Boulevard, on the San Mateo/Santa Clara County border on Feb. 4, 2019. Photo: CHP Redwood City Photo: CHP Redwood City Image 1 of / 15 Caption Close Sinkhole takes out lane, closes Skyline Boulevard 1 / 15 Back to Gallery

Officials closed off State Route 35, or Skyline Boulevard, after a sinkhole took out a lane of roadway Monday.

The sinkhole is located on the border between San Mateo and Santa Clara counties, where Skyline Boulevard crosses Alpine Road/Page Mill Road. About 5 inches of rain have dumped on the area over the past seven days, according to the National Weather Service.

"Plan your route accordingly as we don't know how long this stretch of road will be closed," the California Highway Patrol's Redwood City office advised on Twitter.

A video shared by KGO reporter Matt Keller shows how much of the road has washed away.

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

Weather has caused even worse road troubles in the Sierra Nevada, where whiteout conditions have forced the closure of 100 miles of Interstate 80. Snow also dusted Bay Area peaks, to a much smaller extent.

Read Alix Martichoux's latest stories and send her news tips at amartichoux@sfchronicle.com.

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