An atmospheric river is washing out key roadways across Mendocino County. Caltrans has closed Highway 1 near the Garcia River, Highway 175 in Hopland, and Highway 128 in Anderson Valley between Highway 1 and the Flynn Creek Bridge. The Russian River has already hit flood stage and is expected to rise higher, with warnings in place through Wednesday. Officials say there’s no timeline yet for reopening, so drivers should plan detours and check road conditions before heading out.