Add Yahoo as a preferred source to see more of our stories on Google. The Colorado River currently supports 40 million people and $1.4 trillion in annual economic activity in seven U.S. states and ...

The Potomac Riverkeeper Network says sewage carrying dangerous levels of E. coli is leaking from the C&O Canal bypass system.

Raw sewage pouring into the Potomac River in Maryland has left parts of the waterway contaminated with E. coli bacteria at levels nearly 12,000 times higher than what is considered safe for human ...

Columbia River shipping industry leaders say there is a growing risk the Lewis and Clark Bridge between Rainier and Longview could be hit by a large vessel and possibly collapse. About four years ...