Several road projects will impact traffic in the Mother Lode this week, September 6th to the 12th, 2026.
On Highway 4 one-way traffic control from Brice Station Road to Northwood Drive will allow for drainage work at night beginning Wednesday through Friday from 8 p.m. to 6 a.m.
On Highway 26 the long-term full highway closure at the West Side of Highway 26 and Highway 49 Intersection in in Mokelumne Hill to Highway 49 for intersection construction work will continue through Wednesday as detailed here.
On Highway 26 one-way traffic control from Lower Dorray Road to Ridge Road for tree work on Wednesday, September 9, 2026, from 7:00 a.m. to 4:00 p.m.
On Highway 26 one-way traffic control from Winton Road to Higdon Road for tree work beginning Wednesday through Friday from 7:00 a.m. to 4:00 p.m.
On Highway 26 one-way traffic control from Ridge Road to Upper Dorray Road for tree work on Thursday from 7:00 a.m. to 4:00 p.m.
On Highway 26 one-way traffic control from Upper Dorray Road to Ealey Road for tree work on Friday from 7:00 a.m. to 4:00 p.m.
On Highway 49 overnight one-way traffic control at Sapphire Ridge Road will allow for tree work on Wednesday from 7:00 a.m. until 5:00 p.m.
On Highway 49 overnight, one-way traffic control between Montezuma Road and Rolling Hills Road for drainage work will begin Wednesday and continue through Friday from 8:00 p.m. until 6:00 a.m.
On Highway 49 shoulder and a left turn lane closure will be in place from South Bret Harte to Copello Drive for pavement work beginning Wednesday through Friday from 8:00 a.m. to 5:00 p.m.
On Highway 49 overnight highway shoulder closure from Angels Road to Treat Avenue for utility work will begin Wednesday and continue through Friday from 8:00 p.m. to 5:00 a.m.
On Highway 108 overnight one-way traffic control between Coffil Road and East Long Barn Road for pavement work will begin Wednesday through Friday from 7:00 p.m. until 5:00 p.m.
On Highway 108 one-way traffic control between Herring Creek Road and West Cow Creek for drainage work will begin Tuesday and continue through Thursday from 8:00 a.m. until 4:00 p.m.
On Highway 108 one-way traffic control Draper Mine Road for tree work on Thursday from 7:00 a.m. until 5:00 p.m.
Motorists should expect 5-10 minute delays and use alternate routes whenever possible. This work is scheduled as listed but is subject to change due to traffic incidents, weather, equipment availability, and/or construction-related issues. For the safety of workers and other motorists, please Be Work Zone Alert.
Caltrans is seeking public feedback regarding a proposed Highway 49 project that stretches from Jamestown to Sonora. The comment period ends on September 24, 2026 as detailed here.
