List of Susquehanna River

Susquehanna River

The Susquehanna River is a river located in the northeastern United States. At long, it is the longest river on the American east coast that drains into the Atlantic Ocean, and with its watershed it is the 16th largest river in the United States, and the longest river in the continental United...

 crossings proceeding upstream from the river mouth at the Chesapeake Bay

Chesapeake Bay

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 drainage basin covers in the District of Columbia and parts of six states: New York, Pennsylvania, Delaware, Maryland, Virginia, and West...

 in Maryland

Maryland

Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

, USA, generally northward through Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

 toward the main branch headwaters in New York

New York

New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

. The West Branch

West Branch Susquehanna River

The West Branch Susquehanna River is one of the two principal branches, along with the North Branch, of the Susquehanna River in the northeastern United States. The North Branch, which rises in upstate New York, is generally regarded as the extension of the main branch, with the shorter West Branch...

 crossings are listed afterward.

This list includes active road, railroad, foot, and trail bridges, dams, fords, ferries, and historic crossings. Presently it does not include historic ferry crossings. Railroad lines are generally as shown on the USGS topographic maps, which may not have been updated to reflect the creation of Conrail in the 1970s, which absorbed many lines in this area.

Main Branch crossings are listed from the mouth of the river in the Chesapeake Bay

Chesapeake Bay

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 drainage basin covers in the District of Columbia and parts of six states: New York, Pennsylvania, Delaware, Maryland, Virginia, and West...

 up to the source at Otsego Lake in Cooperstown, New York

Cooperstown, New York

Cooperstown is a village in Otsego County, New York, USA. It is located in the Town of Otsego. The population was estimated to be 1,852 at the 2010 census.The Village of Cooperstown is the county seat of Otsego County, New York...

.

In a geological sense, the Chesapeake Bay is just the ria

Ria

A ria is a coastal inlet formed by the partial submergence of an unglaciated river valley. It is a drowned river valley that remains open to the sea. Typically, rias have a dendritic, treelike outline although they can be straight and without significant branches. This pattern is inherited from the...

, submerged valley, of the Susquehanna River.