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Mississippi River at St. Louis, MO
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Stream Name: Mississippi River
Gage Zero: 379.94 Ft. NGVD NAD27
Flood Elevation:409.94 Ft.
Record High Elevation:429.52 Ft.
Longitude: -90.18334680
Latitude: 38.62355249
River Mile: 179.6 miles above the mouth of the Ohio River
Record High Elevation Date: 08/01/1993

Drainage Area : 697013.00 Mi2
Location of Gage :

At the foot of Market Street, 15 miles downstream from the mouth of the Missouri River and at mile 179.6 above the mouth of the Ohio River.

This gage is owned and operated by the St. Louis District, Corps of Engineers.  Maintained in conjunction with the U.S. Geological Survey.

Latest Data
06/11/2026 23:00 Central
Latest Elevation400.97 Ft.
24 Hr. Change-1.24 Ft.
Tomorrow's Forecast
(Issued 06/12/2026 02:40)
402.74 Ft.   Plot Tomorrow's Forecast
Latest FlowM
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There Is Currently No Historic Data
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DECODES XML
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St. Louis District Historic Data
US Army Corps of Engineers - St. Louis District - Water Control Center - Contact Us