U.S. 12 will shut down at noon today near Arrow Bridge so crews can address an unstable rock slope. Officials are taking swift action to prevent potential threats to motorists, although no timeline for reopening has been disclosed.

A fatal collision south of Colfax on Friday evening forced the closure of U.S. Highway 195. With the highway blocked, traffic was diverted to Palouse via SR 272 and to Pullman via SR 27. Officials have not released additional details.