Published Aug 3, 2026 9:36 am : Updated Aug 3, 2026 9:50 am
Caltrans map of backed-up traffic at the Jamestown roundabout
Update at 9:49 a.m.: The CHP reports that the wreckage of an overturned trailer that was blocking the highway for several hours has been removed and traffic is moving freely again. The CHP reported it had contacted the Tuolumne County Environmental Health officials regarding the crash but did not update whether it was determined to be a hazmat problem. They report no injuries in this collision.
Original post at 9:36 a.m.: Jamestown, CA – First responders remain at the scene of a rollover crash involving a trailer at the roundabout on Highway 108 near the Chicken Ranch Casino Resort in Jamestown this morning.
The collision occurred just after 6:30 a.m. at Sierra Rock Road when a trailer overturned, blocking the lanes of the highway. The CHP reports it is a possible hazmat issue, and they have contacted the Tuolumne County Environmental Health officials regarding the crash.
Motorists are asked, if possible, to avoid the area, as there is plenty of activity in the area. We’ll update you as soon as new information comes into the newsroom.
This post was last modified on 08/03/2026 9:50 am
Written by Tracey Petersen.
Sign up for our Breaking News Alerts and the myMotherLode.com Daily Newsletters by clicking here. Report breaking news, traffic or weather to our News Hotline (209) 532-6397. Send Mother Lode News Story photos to news@clarkebroadcasting.com.
For Caltrans traffic information for Highway’s 4, 49, 59, 108, and 120 plus a view of traffic on other Mother Lode roads click on “Traffic” or keyword: traffic and our local gas price page is here. For an overview of extreme weather news stories go here.