The pumping station at the Chula Vista Wash project diverts water away from the work being done Apr. 9 by West Point Contractors, Inc., the U.S. Army Corps of Engineer Los Angeles District’s contractor, as they prepare to construct a bridge across the reach in Nogales, Ariz. The $4M project will consist of constructing a two-span, I-girder concrete bridge, install associated road base and approach slabs, and placing grouted riprap both upstream and downstream of the project in the channel.