When it comes to driving State Highway 21 (SH-21) from Boise to Stanley, you’d better check with Mother Nature before putting the pedal to the metal.
In August, a series of downpours caused a mudslide that closed the road for multiple days.
The landslide also filled an existing culvert, causing Canyon Creek to run along the shoulder of the highway, resulting in ongoing erosion that threatens the structural integrity of the highway…