Everything about Susquehanna River totally explained
The
Susquehanna River (originally "Sasquesahanough" per the
1612 John Smith map) is a
river located in the northeastern
United States. At approximately 444
mi (715
km) long, it's the longest river on the
American east coast and the 16th longest in the United States. The Susquehanna forms from two main branches, with the North Branch, which rises in upstate
New York often regarded as an extension of the main branch. The shorter
West Branch, which rises in western
Pennsylvania, is sometimes regarded as the principal tributary, joining the North Branch near
Northumberland in central Pennsylvania. The river drains 27,500 square miles (71,225 km²), covering nearly half of the land area of Pennsylvania and portions of New York and Maryland. The drainage basin includes portions of the
Allegheny Plateau region of the
Appalachian Mountains, cutting through
water gaps in the lateral mountain ridges in a broad
zigzag course to flow across the rural heartland of southeastern Pennsylvania and northeastern
Maryland. The river empties into the northern end of the
Chesapeake Bay, the
ria of the Susquehanna, providing half of the freshwater inflow for the entire Chesapeake Bay.
Description
Rising as the outlet of
Otsego Lake in
Cooperstown, New York, the north branch of the river runs west-southwest through dairy country, receiving the
Unadilla River at
Sidney and the
Chenango in downtown
Binghamton. At
Athens in northern Pennsylvania, just across the New York state line, it receives the
Chemung from the northwest and makes a right angle curve between Sayre and
Towanda to cut through the
Endless Mountains in the
Allegheny Plateau. It receives the
Lackawanna River southwest of
Scranton and turns sharply to the southwest, flowing through the former anthracite industrial heartland in the mountain ridges of northeastern Pennsylvania, past
Wilkes-Barre,
Berwick,
Bloomsburg, and
Danville. It receives the smaller West Branch from the northwest at
Northumberland, just above
Sunbury.
Downstream from the confluence of its branches it flows south past
Selinsgrove, where it's joined by its
Penns Creek tributary, and cuts through a water gap at the western end of
Mahantongo Mountain. It receives the
Juniata River from the northwest at
Duncannon, then passes through its last water gap, through
Blue Mountain Pennsylvania, just northwest of
Harrisburg. It passes downtown Harrisburg (where it's nearly a mile wide), the largest city on the lower river, and flows southeast across
South Central Pennsylvania, forming the border between
York and
Lancaster counties, as well as receiving
Swatara Creek from the northeast. It crosses into northern
Maryland approximately 30 miles (50 km) northeast of
Baltimore, where it's joined by
Octoraro Creek. Finally the river enters the northern end of the Chesapeake Bay at
Havre de Grace, where
Concord Point Light was built in 1827 to accommodate the increasing navigational traffic.
Geology
Geologically, the river is extremely ancient, often regarded as the oldest or second oldest major system in the world. It is far older than the mountain ridges through which it turns, most of which were formed in uplift events of the early
Cenozoic era. Like the
Hudson,
Delaware and
Potomac rivers, the basin was well-established in the
flat plains that existed during the
Mesozoic era. There is evidence that the flow of the ancient Susquehanna was established early enough that it predated the
Appalachian orogeny over 300 million years ago, meaning that the river was in existence well before
Pangea broke up and formed the
Atlantic Ocean.
Before the end of the last ice age, the Susquehanna was a much longer river. The Chesapeake Bay constituted its lower valley before it was flooded by rising waters at the conclusion of the
Pleistocene, a formation known as a
ria.
Pollution
The environmental group American Rivers named the Susquehanna "America's Most Endangered River for 2005" due to the excessive pollution it receives. It is the habitat of the
Pennsylvania wood cockroach. Most of the pollution in the river is due to excess animal manure, agricultural runoff, urban and suburban stormwater, and raw or inadequately treated sewage. In 2003 the river alone contributed 44% of the nitrogen, 21% of the phosphorus, and 21% of the sediment flowing into the Chesapeake Bay. Pennsylvania may be subject to
EPA sanctions if it doesn't reduce its pollution in the watershed by 2010.
(External Link
)
It was designated as one of the
American Heritage Rivers in 1997.
Historic importance
The river has played an enormous role throughout the history of the United States. Before European conquest, the
Susquehannock, an
Iroquoian tribe lived along the river and gave the Susquehanna its name. In the 17th century, it was inhabited largely by the
Lenape, forming roughly the western boundary of their inhabited territory, known as
Lenapehoking. In the 18th century,
William Penn, the founder of the
Pennsylvania Colony, negotiated with the Lenape to allow white settlement in the colony between the
Delaware River and the Susquehanna. Local legend claims that the name of the river comes from an Indian phrase meaning "mile wide, foot deep," referring to the Susquehanna's unusual dimensions, but while the word is
Algonquian, it simply means "muddy current."
In the late colonial times, the river became an increasingly important transportation corridor with the discovery of
anthracite coal by Necho Allen in its upper reaches in the mountains. In 1792, the
Union Canal was proposed linking the Susquehanna and the Delaware along Swatara Creek and
Tulpehocken Creek. In the 19th century, the river became the scene of the growth of industrial centers.
In
1779 General
James Clinton led an expedition down the Susquehanna after making the upper portion navigable by damming up the river's source at Otsego Lake, allowing the lake's level to rise, and then destroying the dam and flooding the river for miles downstream. This event is described by
James Fenimore Cooper in the introduction to his popular novel
The Pioneers. At
Athens, Pennsylvania, then known as Tioga or "Tioga Point", Clinton met up with General
John Sullivan's forces, who had marched from
Easton, Pennsylvania. Together on
August 29, they defeated the
Tories and
Indians at the
Battle of Newtown (near today's city of
Elmira, New York). This became known as the "Sullivan-Clinton Campaign" or the "
Sullivan Expedition."
Conflicting land claims by Pennsylvania and
Connecticut to the
Wyoming Valley along the Susquehanna led to the founding of
Westmoreland County, Connecticut, and the
Pennamite Wars, which eventually led to the territory being ceded to Pennsylvania.
The Susquehanna River holds importance for members of
The Church of Jesus Christ of Latter-day Saints as the location where
Joseph Smith, Jr. and
Oliver Cowdery received the
priesthood from heavenly beings. On
15 May,
1829, according to section 13 of the
Doctrine and Covenants, they were visited by the
resurrected John the Baptist. Following his visit, Joseph and Oliver baptized each other in the river. Later that year, they were also visited near the river by the
apostles Peter,
James and
John, as alluded to in sections 27 and 128 of the Doctrine and Covenants. Both events took place in unspecified locations near the river's shore in either
Susquehanna County, or
Broome County.
During the
American Civil War's 1863
Gettysburg Campaign, the commander of the
Department of the Susquehanna,
Union Major General Darius N. Couch resolved that
Robert E. Lee's
Confederate Army of Northern Virginia wouldn't cross the Susquehanna. He positioned
militia units under Maj.
Granville Haller to protect key bridges in Harrisburg and
Wrightsville, as well as nearby fords. Confederate forces approached the river at several locations in
Cumberland and
York counties, but were recalled on
June 29 when Lee chose to concentrate his army to the west.
In
1972, the remnants of
Hurricane Agnes stalled over the New York-Pennsylvania border, dropping as much as 20 inches (50.8 cm) of rain on the hilly lands. Much of that precipitation was received into the Susquehanna from its western tributaries, and the valley suffered disastrous flooding.
Wilkes-Barre, Pennsylvania, was among the hardest hit communities. The
Chesapeake Bay received so much fresh water that it killed much of the marine life.
In
1979, the river was the scene of the most serious
nuclear power accident in U.S. history at
Three Mile Island southeast of Harrisburg.
In June
2006, significant portions of the river system were affected by the
Mid-Atlantic Flood of June 2006, a flood caused by a stalled jet stream-driven storm system. The most significantly affected area in the Susquehanna river basin was in and around the
Binghamton, NY region, where flooding exceeded historical records and forced the evacuation of thousands of residents and the destruction of significant amounts of property and infrastructure.
Rowing
The Susquehanna River has become the home for various college crew teams, most notably
Binghamton University,
Susquehanna University,
Bucknell University and the
University of Scranton. Some of the annual rivers races include the
Plagge-Poluzza in
Port Deposit Maryland, and
the
General Clinton Canoe Regatta, held each Memorial Day weekend between
Cooperstown, New York and
Bainbridge, New York.
Bridges, ferries, canals and dams
The Susquehanna River has always loomed large in the transportation history of the
United States. Prior to the 1818 opening of the
Port Deposit Bridge, the river formed a barrier between the northern and southern states, crossable only by ferry. The earliest dams were constructed to support ferry operations in low water. The presence of many rapids in the river meant that while commercial traffic could navigate down the river in the spring thaws, nothing could move up. This led to the construction of two different canal systems on the lower Susquehanna; the first was the
Susquehanna Canal, also called the Conowingo Canal or the Port Deposit Canal, completed in 1802 by a Maryland company known as the Proprietors of the Susquehanna Canal; the second was the much longer and more successful
Susquehanna and Tidewater Canal. The canals required additional dams to provide canal water and navigation pools. As the industrial age progressed, bridges replaced ferries, and railroads replaced canals, often built right on top of the canal right of way along the river. Many canal remnants can be seen in
Havre de Grace, Maryland, along
US Route 15 in Pennsylvania, and in upstate New York at various locations. These latter remnants are parts of the upstream divisions of the
Pennsylvania Canal, of privately funded canals, and of canals in the New York system.
Today, there are over two hundred bridges crossing the Susquehanna. The sole remaining ferry, at
Millersburg, Pennsylvania, is a seasonal tourist attraction. The canals are gone or are part of historical parks, and dams are related to power generation or recreation. Perhaps the most famous of the bridges, the
Rockville Bridge, crosses the river from
Harrisburg, Pennsylvania, to
Marysville, Pennsylvania. The Rockville Bridge, when constructed, was the longest
stone masonry arch bridge in the world. It was built by the
Pennsylvania Railroad in the early 1900s, replacing an earlier iron bridge.
Further Information
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