River Stations

Important Change in River Level Measurements

Beginning in August 2016, the District will start implementation of the use of a new vertical datum, the North American Vertical Datum of 1988 (NAVD88). In the past, the District has used the National Geodetic Vertical Datum of 1929 (NGVD29). The new datum will result in a downward shift of between 0.64 to 0.90 feet depending on location. There is no change in the actual river level, only the value used to represent the level is different. The full conversion is expected to be complete by November 1, 2016.

More information about the vertical datum change may be found at http://www.mysuwanneeriver.com/VerticalDatum or by calling the District offices at 386-362-1001 and asking to speak with Tom Mirti, Director of Water Resources.

Realtime River and Lake Levels
SRWMD Water Data Portal

Important: If you use USGS data from their web pages for flood information or construction-related activities, it is critical that you adjust the data to the survey datum you are using. Use this guide for more information.
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