Flow Frequency Query
Upper Mississippi River
United States Army Corps of Engineers
Mississippi Valley Division
Developed by Rock Island District
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River:
Select a river
Illinois River
Mississippi River
Missouri River
Datum:
Select a datum year
1912
1929
Return Period:
Select a frequency
2-year
5-year
10-year
25-year
50-year
100-year
200-year
500-year
River Mile:
Or Select a Pool Reach
*
Select a PDF Plate of Pool
Mississippi Pools 4 - 5 1912 (RM 796.9 - 738.1)
Mississippi Pools 4 - 5 1929 (RM 796.9 - 738.1)
Mississippi Pools 5A - 8 1912 (RM 738.1 - 679.2)
Mississippi Pools 5A - 8 1929 (RM 738.1 - 679.2)
Mississippi Pools 9 - 10 1912 (RM 679.2 - 615.1)
Mississippi Pools 9 - 10 1929 (RM 679.2 - 615.1)
Mississippi Pools 11 - 12 1912 (RM 615.1 - 556.7)
Mississippi Pools 11 - 12 1929 (RM 615.1 - 556.7)
Mississippi Pools 13 - 14 1912 (RM 556.7 - 497)
Mississippi Pools 13 - 14 1929 (RM 556.7 - 497)
Mississippi Pools 16 - 18 1912 (RM 463.5 - 410.5)
Mississippi Pools 16 - 18 1929 (RM 463.5 - 410.5)
Mississippi Pools 19 - 20 1912 (RM 410.5 - 343.2)
Mississippi Pools 19 - 20 1929 (RM 410.5 - 343.2)
Mississippi Pools 21 - 22 1912 (RM 343.2 - 301.2)
Mississippi Pools 21 - 22 1929 (RM 343.2 - 301.2)
Mississippi Pools 24 - 25 1929 (RM 301.2 - 250.8)
Mississippi Pools 25 - Melvin Price 1929 (RM 250.8 - 196.8)
Mississippi River Miles 196.8 - 145.8
Mississippi River Miles 145.8 - 94.1
Mississippi River Miles 94.1 - 52
Mississippi River Miles 52 - 0
Dresden Island and Marseilles 1929 (RM 285.9 - 247)
Starved Rock and Peoria 1929 (RM 247 - 180.3)
Peoria and Lagrange 1929 (RM 180.3 - 119.6)
Lagrange and Melvin Price (RM 119.6 - 61.3)
Illinois River, Melvin Price Pool (RM 61.3 - 0)
Mississippi Pools 14 - 16 1929 (RM 497 - 463.5)
Mississippi Pools 2 - 3 1912 (RM 847.8 - 796.9)
Mississippi Pools 14 - 16 1912 (RM 497 - 463.5)
Mississippi Pools 2 - 3 1929 (RM 847.8 - 796.9)
*Pool Reach PDF's are only available for the pools for the Mississippi and Illinois Rivers. All downloadable PDF Plates are about 600 kb.
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Illinois River
Mississippi River
Missouri River
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