MENDOCINO / LAKE COUNTY CORRIDOR — October 26, 2026. Highway 175 travelers should be aware of a long-duration construction restriction close to the Mendocino–Lake county boundary. The state’s latest highway bulletin lists alternating one-way traffic approximately 3.2 to 3.6 miles west of the county line, on the Mendocino County side.

Caltrans lists the work zone as operating 24 hours a day, seven days a week, through December 31, 2026. Motorists may experience delays of up to 10 minutes at the controlled segment. The restrictions cover a specified piece of highway, not all of Highway 175 and not the entire Lake County road system.

How to plan through a long-duration work zone

For rural households traveling across the county line for services and appointments, an extra ten minutes can matter when meeting a fixed arrival time. Drivers should watch for temporary signals, construction equipment and queues that may appear outside ordinary commuting periods because the notice applies overnight as well.

The notice does not disclose the precise construction stage or assert a confirmed crash or landslide. Avoid assumptions about project completion from a calendar deadline alone; weather, materials and changed scheduling can affect the road report.

Official source: Caltrans State Route 175 conditions, October 26. For up-to-date lane availability consult Caltrans QuickMap. Filed as Mendocino County news because the work zone is west of the stated county line.

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