Several road projects will impact traffic in the Mother Lode this week, August 9th to the 15th 2026.
On Highway 4 one-way traffic control from Lower Utica Powerhouse Road to Upper Moran Road for tree work began Monday at 7 a.m. and will continue each through Friday from 7:00 a.m. to 3:00 p.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 from Main Street to Highway 49 for intersection construction work began Monday at 7:00 a.m. through November 9. Work will include the construction of a single lane roundabout at the intersection along with the installation of closed-circuit television (CCTV) to help monitor live traffic conditions, evaluate roadway operations, and improve response time to traffic incidents. Temporary road closures with traffic detours will be required at various stages of construction for the safety of motorists, roadway workers, and equipment. Starting this week the second phase of the project includes construction crews primarily working day shifts from 6:00 a.m. to 5:00 p.m. The second phase will take approximately 55 working days (77 calendar days) – Mondays through Fridays – with completion expected in early November 2026. In addition to weekly traffic advisories and roadside message signs will be placed along the highway to alert motorists of scheduled lane closures.
The $4.5 million project was awarded to George Reed, Inc. (Modesto, CA), who will perform the work required. This project will improve traffic safety within the intersection by reducing the severity and number of broadside collisions caused by the failure of motorists to yield to traffic.
On Highway 49 overnight one-way traffic control from Main Street (San Andreas) to Airport Road for crack & seal operations began Sunday and will continue through Thursday from 8:00 p.m. to 4:00 a.m.
Tuolumne County Public Works officials report paving work will require a full closure of Columbia Street from Yankee Hill Road to Parrotts Ferry Road. The paving began last Monday and is scheduled to take until this Wednesday between 6 a.m. to 4 p.m.
On Highway 49 one-way traffic control between High School Road and Woods Creek for drainage work on Thursday and Friday from 7:00 a.m. until 4:00 p.m.
On Highway 49 one-way traffic control between Mill Villa Court and Ponderosa Drive for drainage work began Monday and will continue through Wednesday from 7:00 a.m. until 4:00 p.m.
On Highway 108 overnight one-way traffic control between Coffil Road and East Long Barn Road for pavement work that began Sunday and will continue through Friday from 8:00 p.m. until 6:00 a.m.
On Highway 108 one-way traffic control between Herring Creek Road and Closure Gate #1 for drainage work that began Monday and will continue through Thursday from 8:00 a.m. until 4:00 p.m.
On Highway 108 one-way traffic control between Closure Gate #1 and County Road for electrical work also began Monday and will continue through Thursday from 6:00 a.m. until 4:00 p.m.
