Kayaking on the Susquehanna River near Harrisburg. Photo credit © Miguel Angel de la Cueva/iLCPA kayaker enjoys the Susquehanna near Harrisburg. Photo © Miguel Angel de la Cueva/iLCP

The Susquehanna River

The Chesapeake Bay is essentially the Susquehanna River's valley floor. It is the tidal portion of the Susquehanna. The river and the Bay are two integral parts of one ecosystem. continued below

Map of the Susquehanna River drainage basin

Twenty thousand years ago, during the last Ice Age, sea level was about 330 ft. lower than it is today. At that time, the Susquehanna flowed from the edge of the polar ice cap (in what is now north central Pennsylvania) down to the Atlantic. All of the rivers in what is now the Chesapeake drainage basin flowed into it. As the earth warmed up and sea level rose, the Atlantic backed up into the Susquehanna's valley floor, forming the Chesapeake Bay and the tidal portions of rivers like the Potomac and the Nanticoke. The Susquehanna's large drainage basin, or watershed, means the pollution that flows into Pennsylvania rivers and streams ultimately finds its way to the Chesapeake Bay. Many of Pennsylvania's waterways suffer from an overload of pollution from many different sources, including agriculture and stormwater.

The Bay-wide Chesapeake Clean Water Blueprint is the most significant effort to date to clean up our waterways and mitigate the effect of upstream pollution.

Related Stories
  • CBF Comments to Conowingo Regulator In a formal comment letter, CBF insisted that any new license for the operation of the Conowingo Dam on the Susquehanna River require the dam’s owner to reduce the risk of sediment and nutrient pollution releases, and to improve passage for migratory fish.
  • CBF Comments to Conowingo Regulator In a formal comment letter, CBF insisted that any new license for the operation of the Conowingo Dam on the Susquehanna River require the dam’s owner to reduce the risk of sediment and nutrient pollution releases, and to improve passage for migratory fish.
  • Baltimore Law Firm Urges Counties to Delay Implementation of the Clean Water Blueprint Firm contends that pollution coming down the Susquehanna River from New York and Pennsylvania and trapped behind the Conowingo dam needs to be addressed first.
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