Sonora, CA…The California Department of Transportation (Caltrans) is preparing a highway improvement project that will add centerline and shoulder rumble strips to 27 miles of State Route 108 (SR-108) in Tuolumne county.

Work will be performed at the following locations:
• From the SR-49/SR-108 junction to Draper Mine Road, about 6 miles;
• A half-mile west of Twaine Harte Drive to Stoddard Springs, about 12 miles;
• From Heliport Road to a half-mile west of Herring Creek Road, about 9 miles;
Work is scheduled to start Sunday, April 14, 2019, with the project expected to finish in the
Summer of 2019. The work from the SR-49/SR-108 to Draper Mine Road will be done at night,
while work will be done during the day at the other two locations.

The night work will primarily be Sunday through Thursday, from 8:00 p.m. until 6:00 a.m. The
day work will primarily be 6:00 a.m. to 6:00 p.m. Friday’s work will typically end at 3:00
p.m. so that the highway is clear for weekend visitors and tourists to the region.
One-way traffic control will be in effect and motorists should expect delays of 10 minutes.
Rumble strips are designed to alert drivers when their vehicles leave their traffic lane.
As tires pass over the rumble strips, drivers can hear the noise and feel the vibration
produced by these rumble strips. These strips are ground into the pavement surface.
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For the safety of workers and other motorists, please Slow for the Cone Zone.
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www.dot.ca.gov