Arks float; cars don't First came the flood; next came the mud. The event gushed forth about 5 p.m. Monday when a frozen 12-inch pipe at an abandoned pump station located at 3800 S. Redwood Road thawed and burst, left. Later, a mud flow oozed like pancake batter down one of West Valley City's busiest streets. Although the water-and-mud show closed the east lanes of Redwood Road for about two hours while employees of the Granger-Hunter Improvement District mopped up, there were no serious traffic complications, said Steve Shreeve, assistant West Valley police chief.