Artist rendering of the earlier proposal for a "Rock Shed" for the Highway 140 Ferguson Slide Permanent Restoration Project in Mariposa County. 

March 18, 2021 - MARIPOSA COUNTY – The California Department of Transportation (Caltrans) is preparing to perform work at the site of the Ferguson Rock Shed project on Route 140 in Mariposa County.

In the first phase of an ambitious rock shed construction project, workers will remove overhanging boulders and rubble from the slope where a rock slide blocked the roadway. Crews are scheduled to conduct this work during daytime hours beginning in April and continuing into the winter season of 2021.

Traffic impacts are expected to be minimal.

The Ferguson Rock Shed Project is an engineering marvel that will ensure motorists have safe access to Yosemite National Park via Route 140. Construction of the rock shed is scheduled to begin the summer of 2022.

This work is scheduled to begin as listed, but is subject to change due to traffic incidents, weather, availability of equipment, and/or materials and construction related issues.

For the safety of workers and other motorists, please Be Work Zone Alert.
Source: Caltrans