WEST MIFFLIN, Pa. (WPXI) — A portion of Route 837 in West Mifflin is closed until further notice due to a landslide. Route 837 has closed in both directions between the Boswell Oil Company in Dravosburg and the McKeesport-Duquesne Bridge, county officials said. This comes after heavy storms and strong winds rolled through Western Pa. Saturday evening. The roadway will be closed until further notice.