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List of rivers of the United States by discharge

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This is a list of rivers in the continental United States by average discharge (streamflow) in cubic feet per second. All rivers with average discharge more than 15,000 cubic feet per second are listed. Estimates are approximate, because data are variable with time period measured and also because many rivers lack a gauging station near their point of outflow.

No River Length Average discharge Outflow
miles km cu ft/s m/s
1 Mississippi River 2,320 3,730 593,000 16,800 m/s Gulf of Mexico
2 Ohio River 979 1,575 281,500 7,970 m/s Mississippi River
3 St. Lawrence River 600 965 348,000 (275,000 at U.S.-Canada boundary) 9,900 m/s (7,800 m/s at U.S.-Canada boundary) Gulf of Saint Lawrence
4 Columbia River 1,243 2,000 273,000 7,700 m/s Pacific Ocean
5 Yukon River 1,980 3,185 227,000 6,400 m/s Bering Sea
6 Atchafalaya River 137 220 225,000 6,400 m/s Gulf of Mexico
7 Niagara River 36 58 204,700 5,800 m/s Lake Ontario
8 Detroit River 32 51 188,000 5,300 m/s Lake Erie
9 St. Clair River 39 63 183,000 5,200 m/s Lake St. Clair
10 Missouri River 2,341 3,767 86,300 2,440 m/s Mississippi River
11 St. Marys River 75 120 75,000 2,100 m/s Lake Huron-Lake Michigan
12 Tennessee River 652 1,049 68,000 1,900 m/s Ohio River
13 Mobile River 45 72 67,000 1,900 m/s Gulf of Mexico
14 Kuskokwim River 702 1,130 67,000 1,900 m/s Bering Sea
15 Red River 1,360 2,190 58,000 1,600 m/s Atchafalaya River
16 Copper River 290 470 57,400 1,630 m/s Gulf of Alaska
17 Snake River 1,040 1,674 55,000 1,600 m/s Columbia River
18 Stikine River 379 610 56,000 1,600 m/s Pacific Ocean
19 Susitna River 313 504 51,000 1,400 m/s Gulf of Alaska
20 Arkansas River 1,443 2,322 44,500 1,260 m/s Mississippi River
21 Tanana River 584 940 41,800 1,180 m/s Yukon River
22 Saint John River 418 673 38,800 1,100 m/s Bay of Fundy
23 Susquehanna River 464 747 38,200 1,080 m/s Chesapeake Bay
24 Willamette River 187 301 37,400 1,060 m/s Columbia River
25 Wabash River 503 810 34,500 980 m/s Ohio River
26 Alabama River 318 512 32,500 920 m/s Mobile River
27 Nushagak River 280 450 32,000? 910 m/s Bering Sea
28 Alsek River 240 386 31,000 880 m/s Gulf of Alaska
29 Cumberland River 696 1,120 30,000? 850 m/s Ohio River
30 Black River-Ouachita River 605 974 29,800 840 m/s Red River
31 White River 720 1,159 29,500 840 m/s Mississippi River
32 Pend Oreille River 130 210 27,000 760 m/s Columbia River
33 Tombigbee River 200 320 26,300 740 m/s Mobile River
34 Koyukuk River 425 684 25,000? 710 m/s Yukon River
35 Illinois River 273 439 24,000 680 m/s Mississippi River
36 Sacramento River 447 719 23,500 670 m/s Pacific Ocean
37 Porcupine River 569 916 23,000 650 m/s Yukon River
38 Colorado River 1,450 2,330 22,000 620 m/s Gulf of California
39 Clark Fork River 310 500 21,900 620 m/s Pend Oreille River
40 Hudson River 315 507 21,900 620 m/s Atlantic Ocean
41 Yentna River 75 121 21,000? 590 m/s Susitna River
42 Chitina River 112 180 20,000? 570 m/s Copper River
43 Allegheny River 320 523 19,900 560 m/s Ohio River
44 Apalachicola River 50 80 19,602 555.1 m/s Gulf of Mexico
45 Connecticut River 407 655 18,400 520 m/s Atlantic Ocean
46 Kvichak River 50 80 17,900 510 m/s Bering Sea
47 Klamath River 263 423 17,300 490 m/s Pacific Ocean
48 Santee River 143 230 17,000(approx.) 480 m/s Atlantic Ocean
49 Skagit River 150 240 16,500 470 m/s Pacific Ocean
50 Kootenai (Kootenay) River 485 781 27,600 (approx. 16,000? at U.S.-Canada boundary) 780 m/s (approx. 450 m/s? at U.S.-Canada boundary) Columbia River
51 Coosa River 280 450 16,000 450 m/s Alabama River
52 Kanawha River 97 156 16,000 450 m/s Ohio River
53 Clearwater River 75 120 15,300 430 m/s Snake River
54 Kobuk River 280 451 15,300 430 m/s Bering Sea
55 St. Johns River 310 500 15,000? 420 m/s Atlantic Ocean
56 Pee Dee River 232 373 15,000? 420 m/s Atlantic Ocean

See also

References

  1. ^ U.S. Geological Survey (1992). "Largest Rivers in the United States" (PDF).
  2. ^ Benke, Arthur C., ed., and Cushing, Colbert E., ed. Rivers of North America. Burlington, Mass.: Elsevier Academic Press. {{cite book}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
  3. Leeden, Frits van der (1990). The Water Encyclopedia (2nd ed.). Chelsea, Mich.: Lewis Publishers. p. 126. ISBN 0-87371-120-3.
  4. "Snake River below Ice Harbor Dam, WA" (PDF). National Water Information System. United States Geological Survey. 1963–2000. Retrieved 20 April 2011.
  5. U.S. Geological Survey (1949). "Large Rivers of the United States, Circular 44" (PDF).
  6. ^ "Saint John River". The Canadian Encyclopedia. Archived from the original on 27 December 2018. Retrieved 27 December 2018.
  7. "USGS Water Data for Indiana".
  8. ^ "USGS Water Data for Alabama".
  9. ^ ""U.S. Geological Survey National Water Summary 1985: State Summaries of Surface-Water Resources". 1987.
  10. ^ "USGS Water Data for Alaska".
  11. "USGS Water Data for Arkansas".
  12. "USGS Gage #12396500 on the Pend Oreille River below Box Canyon, near Ione, WA" (PDF). National Water Information System. U.S. Geological Survey. 1952–2013. Retrieved 2014-10-13.
  13. "U.S. Geological Survey National Water Summary 1985: State Summaries of Surface-Water Resources". 1987.
  14. "USGS Gage #05586100 on the Illinois River at Valley City, IL" (PDF). National Water Information System. U.S. Geological Survey. 1939–2012. Retrieved 2013-11-09.
  15. "USGS Gage #11447650 on the Sacramento River at Freeport, CA (Water-Data Report 2009)" (PDF). Water Resources of the United States. U.S. Geological Survey.
  16. "Montana Water Resources Data 2004"., file "Mill Creek above Bassoo Creek, near Niarada to Clark Fork at Whitehorse Rapids, near Cabinet, ID" (PDF)..
  17. "Estimates of monthly and annual net discharge, in cubic feet per second, of Hudson River at New York, N.Y." United States Geological Survey. October 15, 2010. Archived from the original on March 4, 2016. Retrieved December 30, 2014.
  18. http://wdr.water.usgs.gov/wy2009/pdfs/03049500.2009.pdf
  19. "The Apalachicola-Chattahoochee-Flint (ACF) River National Water Quality Assessment (NAWQA) Program study".
  20. "Water-Data Report 2013: 11530500 Klamath River near Klamath, CA" (PDF). U.S. Geological Survey.
  21. "Water resources data for the United States, Water Year 2009; gage 02411000, Coosa River at Jordan Dam near Wetumpka, AL" (PDF). USGS.
  22. United States Geological Survey; USGS 03193000 KANAWHA RIVER AT KANAWHA FALLS, WV.
  23. "USGS Gage #13343000 on the Clearwater River near Lewiston". United States Geological Survey National Water Information System.
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