State Route 207 Kingsbury Grade in Douglas County will remain closed indefinitely on the Carson Valley side as the Nevada Department of Transportation continues safety evaluation and removal of major rockfall.

The highway was closed early Friday afternoon as NDOT and contractor Q&D Construction removed loose trees and earth from a roadside slope to help reduce rock and mud fall onto the highway. The slope had slid approximately one foot within the past 24 hours, posing the threat of bringing mud, rock and debris across the highway.

While that slope was repaired, additional boulders approximately four feet and larger in diameter began falling from other areas onto the highway. NDOT and rockfall mitigation experts will closely evaluate the multiple areas of rockfall to safely remove remaining loose boulders from the roadside slopes.

Some of the slopes are more than 100 feet high.

For driver safety, the roadway will remain closed indefinitely until the imminent rockfall danger can be addressed. Residential and business access on the Tahoe side of Kingsbury Grade remains available via Highway 50 over Spooner Summit. Drivers can log onto nvroads.com or dial 511 before driving for state road updates.

Following this winter’s heavy precipitation, NDOT reminds motorists of the increased likelihood of rockslides and mudslides in mountainous areas. Drivers are reminded to always drive safely and watch the road ahead. Soil saturation and additional winter weather may lead to subsequent future road closures as repairs are made to other roadside slopes.

The section of road is traveled by approximately 5,600 vehicles daily.