Tuolumne County, CA – Caltrans construction and maintenance work this week on several highways will have traffic controls in place, creating delays for travelers.
One-way traffic controls on Highways 49, 108, and 120 in Tuolumne County. Caltrans provided these work schedules:
Highway 49:
- One-way traffic control between High School Road and Rolling Hills Road for drainage work underway through Thursday, September 3, 2026, from 7:00 a.m. until 4:00 p.m.
State Route 108:
- Overnight one-way traffic control between Coffil Road and East Long Barn Road for pavement work underway through Friday, September 4, 2026, from 8:00 p.m. until 6:00 a.m.
- One-way traffic control between Herring Creek Road and West Cow Creek Road for drainage work underway through Thursday, September 3, 2026, from 8:00 a.m. until 4:00 p.m.
Highway 120:
- One-way traffic control between Cherry Valley Road and the Saw Mill Mountain area for slope repair is underway through Thursday, September 3, 2026, from 8:00 a.m. until 3:30 p.m.
In Calaveras County, crews also have traffic controls in place on Highways 4, 26, and 49. Caltrans provided this rundown of the work:
Highway 4:
- Overnight one-way traffic control from Brice Station Road to Forest Meadows Drive for drainage work beginning Tuesday, September 1, through Friday, September 4, 2026, from 8:00 p.m. to 6:00 a.m.
Highway 26:
- Long-term full highway closure at the west side of the Highways 26/49 intersection from Main Street to Highway 49 for construction work is underway through Monday, November 9, 2026, at 7:00 a.m. Conventional highway lane closures from the Calaveras/Amador County Line to the South Fork Mokelumne River for tree work underway Thursday, September 3, 2026, from 8:00 a.m. to 6:00 p.m.
Highway 49:
- Overnight conventional highway lane closures from South Bret Harte to Copello Drive for pavement work underway through Friday, September 4, 2026, from 9:00 p.m. to 7:00 a.m.
- Conventional highway lane closures from South Bret Harte to Copello Drive for pavement work underway through Thursday, September 3, 2026, from 8:00 a.m. to 5:00 p.m.
- Overnight alternating lane closures from Angels Road to Treat Avenue for utility work underway through Friday, September 4, 2026, from 8:00 p.m. to 5:00 a.m.
- One-way traffic control from Stockton Hill Road to Center Street for tree work beginning Tuesday, September 1, through Thursday, September 3, 2026, from 8:00 a.m. to 5:00 p.m. Caltrans District 10 relays that motorists should expect 5-10 minute delays during all roadwork and use alternate routes whenever possible.
Caltrans District 10 relays that motorists should expect 5-10 minute delays during all roadwork and use alternate routes whenever possible.
