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List of Chesapeake Bay rivers

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This list of Chesapeake Bay rivers includes the main rivers draining into the Chesapeake Bay estuarine complex on the mid-Atlantic eastern coast of the United States, North America. The three largest rivers in order of both discharge and watershed area are the Susquehanna River, the Potomac River, and the James River.[1][2] Other major rivers include the Rappahannock River, the Appomattox River (which flows into the lower James River), the York River (a combination of the Pamunkey and Mattaponi tributary rivers), the Patuxent River, and the Choptank River.

A rough map of the Chesapeake Bay watershed with blue lines for rivers drawn on top.
The Chesapeake Bay watershed

The entire Chesapeake Bay watershed includes portions of six states (New York, Pennsylvania, West Virginia, Maryland, Virginia, and Delaware) and the District of Columbia. The watershed of the entire Chesapeake Bay covers 165,760 km2 (approximately 64,000 mi2 or 41 million acres [3][4]). With an estuary water body area of only 11,600 km2 (4,479 mi2),[5] the land-to-water ratio is about 14:1.[6] Therefore, the rivers flowing into the Chesapeake Bay have a large influence on water quality in the estuary. The rivers flowing into the Chesapeake Bay act as sources of nutrients and sediments from land, which affect the health of the downstream estuary.[7][8] The larger rivers cross the Atlantic seaboard fall line. Over time, many large cities emerged where these rivers cross the fall line as watermills allowed for the production of material goods. Colonial-era logging, farming, and later construction of mill dams have altered streams and trapped mud in much of the Chesapeake Bay watershed.[9][10]

Largest rivers

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List of the seven largest Chesapeake Bay rivers
River Mean annual flow (m3 s−1) [11][12] Watershed drainage area (km2)[2]
Susquehanna 1,145 70,189
Potomac 347 30,044
James[*] 234 19,684
Rappahannock 49 4,144
York[**] 43 4,331
Patuxent 11 901
Choptank 4 293

[*] James values are the sums of flows and watershed areas of the James and Appomattox rivers. [**] York values are the sums of flows and watershed areas of the Mattaponi and Pamunkey tributary rivers.

Other tributary rivers and tidal inlets

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In addition to the largest rivers listed above, the following rivers drain directly into the Chesapeake Bay:

Eastern shore tributary rivers

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Western shore tributary rivers

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See also

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References

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  1. ^ Zhang, Qian; Brady, Damien C.; Boynton, Walter R.; Ball, William P. (2015). "Long-term trends of nutrients and sediment from the nontidal Chesapeake watershed: An assessment of progress by river and season". Journal of the American Water Resources Association. 51 (6): 1534–1555. doi:10.1111/1752-1688.12327. S2CID 129432081.
  2. ^ Sprague, Lori A.; Langland, Michael J.; Yochum, Steven E.; Edwards, Robert E.; Blomquist, Joel D.; Phillips, Scott W.; Shenk, Gary W.; Preston, Stephen D. (2000). "Factors Affecting Nutrient Trends in Major Rivers of the Chesapeake Bay Watershed. Water Resources Investigations Report 00-4218". {{cite journal}}: Cite journal requires |journal= (help)
  3. ^ "Watershed". Chesapeake Bay Program. Retrieved 17 August 2021.
  4. ^ "Geography and Facts - Chesapeake Bay Foundation". Retrieved 17 August 2021.
  5. ^ "Chesapeake Bay Estuarine Complex". Ramsar Sites Information Service. Retrieved 17 August 2021.
  6. ^ "Watershed". Chesapeake Bay Program. Retrieved 17 August 2021.
  7. ^ Kemp, W. M.; Boynton, W. R.; Adolf, J. E.; Boesch, D. F.; Boicourt, W. C.; Brush, G (2005). "Eutrophication of Chesapeake Bay: Historical trends and ecological interactions". Marine Ecology Progress Series. 303: 1–29. Bibcode:2005MEPS..303....1K. doi:10.3354/meps303001.
  8. ^ Kemp, W. M.; Testa, J. M.; Conley, D. J.; Gilbert, D.; Hagy, J. D. (2009). "Temporal responses of coastal hypoxia to nutrient loading and physical controls". Biogeosciences. 6 (12): 2985–3008. Bibcode:2009BGeo....6.2985K. doi:10.5194/bg-6-2985-2009.
  9. ^ Merritts, Dorothy; Walter, Robert (2011). "Anthropocene streams and base-level controls from historic dams in the unglaciated mid-Atlantic region, USA". Philosophical Transactions of the Royal Society A. 369 (1938): 976–1009. Bibcode:2011RSPTA.369..976M. doi:10.1098/rsta.2010.0335. PMID 21282157. S2CID 10390720.
  10. ^ Voosen, Paul (2020). "A muddy legacy". Science. 369 (6506): 898–901. Bibcode:2020Sci...369..898V. doi:10.1126/science.369.6506.898. S2CID 221220841.
  11. ^ Zhang, Qian; Brady, Damien C.; Boynton, Walter R.; Ball, William P. (2015). "Long-term trends of nutrients and sediment from the nontidal Chesapeake watershed: An assessment of progress by river and season". Journal of the American Water Resources Association. 51 (6): 1534–1555. doi:10.1111/1752-1688.12327. S2CID 129432081.
  12. ^ Sprague, Lori A.; Langland, Michael J.; Yochum, Steven E.; Edwards, Robert E.; Blomquist, Joel D.; Phillips, Scott W.; Shenk, Gary W.; Preston, Stephen D. (2000). "Factors Affecting Nutrient Trends in Major Rivers of the Chesapeake Bay Watershed. Water Resources Investigations Report 00-4218". {{cite journal}}: Cite journal requires |journal= (help)