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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 m3/s
1 Mississippi River 2,320 3,730 593,000[1] 16,800 m3/s Gulf of Mexico
2 Ohio River 979[2] 1,575[2] 281,500[3] 7,970 m3/s Mississippi River
3 St. Lawrence River 600 965[2] 348,000[1] (275,000 at U.S.-Canada boundary) 9,900 m3/s (7,800 m3/s at U.S.-Canada boundary) Gulf of Saint Lawrence
4 Columbia River 1,243[2] 2,000[2] 273,000[2] 7,700 m3/s Pacific Ocean
5 Yukon River 1,980[2] 3,185[2] 227,000[1] 6,400 m3/s Bering Sea
6 Atchafalaya River 137 220 225,000[1] 6,400 m3/s Gulf of Mexico
7 Niagara River 36 58 204,700[1] 5,800 m3/s Lake Ontario
8 Detroit River 32 51 188,000[1] 5,300 m3/s Lake Erie
9 St. Clair River 39 63 183,000[1] 5,200 m3/s Lake St. Clair
10 Missouri River 2,341[2] 3,767[2] 86,300 2,440 m3/s Mississippi River
11 St. Marys River 75 120 75,000[1] 2,100 m3/s Lake Huron-Lake Michigan
12 Tennessee River 652 1,049 68,000[1] 1,900 m3/s Ohio River
13 Mobile River 45 72 67,000[1] 1,900 m3/s Gulf of Mexico
14 Kuskokwim River 702[2] 1,130[2] 67,000[1] 1,900 m3/s Bering Sea
15 Red River 1,360 2,190 58,000[1] 1,600 m3/s Atchafalaya River
16 Copper River 290 470 57,400[1] 1,630 m3/s Gulf of Alaska
17 Snake River 1,040[2] 1,674[2] 55,000[4] 1,600 m3/s Columbia River
18 Stikine River 379 610 56,000[1] 1,600 m3/s Pacific Ocean
19 Susitna River 313 504 51,000[1] 1,400 m3/s Gulf of Alaska
20 Arkansas River 1,443[2] 2,322[2] 44,500[5] 1,260 m3/s Mississippi River
21 Tanana River 584[2] 940[2] 41,800[2] 1,180 m3/s Yukon River
22 Saint John River 418 [6] 673 [6] 38,800 [6] 1,100 m3/s Bay of Fundy
23 Susquehanna River 464 747 38,200[1] 1,080 m3/s Chesapeake Bay
24 Willamette River 187 301 37,400[1] 1,060 m3/s Columbia River
25 Wabash River 503[2] 810[2] 34,500[7] 980 m3/s Ohio River
26 Alabama River 318 512 32,500[8] 920 m3/s Mobile River
27 Nushagak River 280 450 32,000?[9] 910 m3/s Bering Sea
28 Alsek River 240 386 31,000[10] 880 m3/s Gulf of Alaska
29 Cumberland River 696[2] 1,120[2] 30,000? 850 m3/s Ohio River
30 Black River-Ouachita River 605[2] 974[2] 29,800[2] 840 m3/s Red River
31 White River 720[2] 1,159[2] 29,500[11] 840 m3/s Mississippi River
32 Pend Oreille River 130 210 27,000[12] 760 m3/s Columbia River
33 Tombigbee River 200 320 26,300[8] 740 m3/s Mobile River
34 Koyukuk River 425 684 25,000?[13] 710 m3/s Yukon River
35 Illinois River 273 439 24,000[14] 680 m3/s Mississippi River
36 Sacramento River 447 719 23,500[15] 670 m3/s Pacific Ocean
37 Porcupine River 569 916 23,000[1] 650 m3/s Yukon River
38 Colorado River 1,450[2] 2,330[2] 22,000[1] 620 m3/s Gulf of California
39 Clark Fork River 310 500 21,900[16] 620 m3/s Pend Oreille River
40 Hudson River 315 507 21,900[17] 620 m3/s Atlantic Ocean
41 Yentna River 75 121 21,000?[10] 590 m3/s Susitna River
42 Chitina River 112 180 20,000? 570 m3/s Copper River
43 Allegheny River 320 523 19,900[18] 560 m3/s Ohio River
44 Apalachicola River 50 80 19,602[19] 555.1 m3/s Gulf of Mexico
45 Connecticut River 407 655 18,400 520 m3/s Atlantic Ocean
46 Kvichak River 50 80 17,900[10] 510 m3/s Bering Sea
47 Klamath River 263 423 17,300[20] 490 m3/s Pacific Ocean
48 Santee River 143 230 17,000(approx.)[9] 480 m3/s Atlantic Ocean
49 Skagit River 150 240 16,500 470 m3/s Pacific Ocean
50 Kootenai (Kootenay) River 485 781 27,600 (approx. 16,000? at U.S.-Canada boundary) 780 m3/s (approx. 450 m3/s? at U.S.-Canada boundary) Columbia River
51 Coosa River 280 450 16,000[21] 450 m3/s Alabama River
52 Kanawha River 97 156 16,000[22] 450 m3/s Ohio River
53 Clearwater River 75 120 15,300[23] 430 m3/s Snake River
54 Kobuk River 280 451 15,300[10] 430 m3/s Bering Sea
55 St. Johns River 310 500 15,000? 420 m3/s Atlantic Ocean
56 Pee Dee River 232 373 15,000?[9] 420 m3/s Atlantic Ocean

See also

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References

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  1. ^ a b c d e f g h i j k l m n o p q r s U.S. Geological Survey (1992). "Largest Rivers in the United States" (PDF).
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad 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. ^ a b c "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. ^ a b "USGS Water Data for Alabama".
  9. ^ a b c ""U.S. Geological Survey National Water Summary 1985: State Summaries of Surface-Water Resources". 1987.
  10. ^ a b c d "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 [bare URL 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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