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Explore the NEWUSGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.
This page is undergoing modernization and will be decommissioned in February 2025.
Daily data are now available in WDFN
and will be integrated in other pages soon.
Learn more about decommission of NWISWeb.
*** There are no data available on the Waterdata system for the time period specified,
although data may be available in the files of the local USGS office operating the station.
*** There are no data available on the Waterdata system for the time period specified,
although data may be available in the files of the local USGS office operating the station.
USGS 05587498 Mississippi River Pool Lock and Dam 26 at Alton,IL
*** There are no data available on the Waterdata system for the time period specified,
although data may be available in the files of the local USGS office operating the station.
*** There are no data available on the Waterdata system for the time period specified,
although data may be available in the files of the local USGS office operating the station.
*** There are no data available on the Waterdata system for the time period specified,
although data may be available in the files of the local USGS office operating the station.