The Chesapeake Bay is the largest estuary (186 mi [300 km] long) in the United States. The Bay was formed 1500 years ago by the retreat of glaciers and the subsequent sea level rise that inundated the lower Susquehanna River valley. The Bay has a...

The Chesapeake Bay is the largest estuary in the United States. It lies off the Atlantic Ocean, surrounded by Maryland and Virginia. The Chesapeake Bay's watershed covers 64,299 square miles (166,534 km²) in the District of Columbia and parts...

The Chesapeake Bay's health is going from bad to worse, according to an environmental group that graded the bay's health a "D" for the ninth consecutive year.The Chesapeake Bay Foundation gave the bay a failing grade for one of its most persistent pollutants — nitrogen...

The Chesapeake Bay is in pitiful condition despite restoration efforts, according to two reports released Wednesday by the University of Maryland and a federal-state partnership charged with bay cleanup.The university's Center for Environmental Science gave the bay an overall grade of D+ for 2006, with...

A runaway trailer started a chain-reaction crash on the Chesapeake Bay bridge, killing three people and injuring five others as dozens of vehicles swerved to avoid it, authorities said.As crumpled trucks were hauled away Thursday evening, structural engineers examined the bridge by boat, air and...

It's the same old, same old for the Chesapeake Bay this summer _ poor water quality and no prospects of likely recovery in key indicators of the bay's health.The Chesapeake Bay Program released Monday a summer forecast that predicted a recurrence of low-oxygen zones in...