CHESAPEAKE CITY, Md. — The Regional Center of Expertise for Bridge Inspection, based out of the U.S. Army Corps of Engineers Philadelphia District, inspects and certifies bridges owned and operated by the Army agency. Every three years, members of the center need to be rope certified in order to hang from the bridge trusses and beams. The team was certified Oct. 27, 2011 during a day-long course here while hanging from the Chesapeake City Bridge. Here, the team members practice a rescue. (U.S. Army Corps of Engineers photo)