Tamanend bottlenose dolphins are seasonal visitors to the Chesapeake Bay and Potomac River. They are a coastal population of ...

It will continue to get harder to ensure there’s enough drinking water from the Potomac River, according to a group that coordinates with D.C.-area water companies.

The George Washington Parkway is undertaking a new initiative to upgrade and replace several of its drinking fountains, ...

A Spirit of Washington lunch cruise boat took on water in the Potomac River shortly after leaving the D.C.'s Wharf on a test ...

It is the second of three days of witness testimony and public inquiry by the National Transportation Safety Board into ...

The hearings revealed that the air traffic controller had been overwhelmed, the helicopter's altimeter was inaccurate and there had been previous concerns with the helicopter route.

The National Transportation Safety Board released new details Wednesday about the final moments before a mid-air crash ...

A long list of things went wrong in January and contributed to the collision between an Army helicopter and an American ...

Photo / Petty Officer 1st Class Brandon Giles, US Coast Guard via ) Investigators painted a devastating picture today of ...

D.C. police have identified the body of a woman recovered Saturday from the Potomac River near the Blue Plains Wastewater Treatment plant, according to a department spokeswoman. The remains were ...