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Boating safety tips are available from the
U.S. Coast Guard.
NOTE: During cold periods, gage height and streamflow information may be adversely affected by ice.
Station operated by the U.S. Army Corps of Engineers—St. Louis District
Note: The USGS began operating this streamgage in March 1933. Although USGS serves data prior to 1933 as a courtesy to the water community, methods used to measure discharge and compute daily discharge values before USGS operation are not fully known and may be inconsistent with established USGS methods. Daily discharge values for dates before March 1933 should be used recognizing this added uncertainty.
determine water level in feet above sea level:
add current gage reading + 379.94 (NGVD 29 datum)
add current gage reading + 379.58 (NAVD 88 datum)
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Value Jul 31