On March 27, the Francis Scott Key Bridge collapsed after being struck by a tanker. The 1.6-mile structure lies in the Patapsco River, closing the Port of Baltimore, one of the nation’s largest ports. What is the environmental impact of this disaster? How will cleanup and rebuilding impact the Patapsco River and Chesapeake Bay? Faculty at the University of Maryland Center for Environmental Science (UMCES) work every day to help state and federal lawmakers and agencies understand questions like these.