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Water Levels By:
National Weather
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Mississippi River at Lock and Dam 15 (Rock Island,IL)
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Stream Name: Mississippi River
Gage Zero: 542.50 Ft. MSL 1912
Flood Stage:15 Ft.
Record High Stage:22.70 Ft.
Longitude: -90.56194000
Latitude: 41.51778000
Flat Pool : 18.50
Flat Tail : 2.50
River Mile: 482.9 miles above the mouth of the Ohio River
Record High Stage Date: 05/02/2019

Drainage Area : 88500.00 Mi2
Location of Gage :

Pool No. 15 extends from Rock Island, IL. 10.4 miles upstream to LeClaire, IA. Lock and Dam 15 is located on the North side of the West End of Arsenal Island. The Lock and Dam is immediately downstream of the Government Bridge. A Visitor's Center is located at the Lock and Dam.

The National Weather Service information is also linked in the Additional Links for this station.

This gage is operated by the US Army Corps of Engineers (Rock Island District).

Latest Data
Latest StageM
24 Hr. ChangeM
Tomorrow's Forecast
(Issued 12/05/2021 01:10)
4.80 Ft.   Plot Tomorrow's Forecast
Last Year's Stage7.03 Ft.
Today's Historic Normal Stage5.00 Ft.
Today's Historic Max Stage10.90 Ft.
Today's Historic Min Stage2.73 Ft.
Latest Pool LevelM
24 Hr. ChangeM
Last Year's Pool Level18.19 Ft.
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Daily Historic Data
(06:00 Central Reading)
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(Yearly Formatted)
Additional Links:
View Record Stage High / Lows
Vessels Queued at Lock 15
Historic Flood Profiles (Pool 15)
Real-Time SHEF Report
Water Transparency
Official National Weather Service information for this station
US Army Corps of Engineers - Rock Island District - Water Control Center - Contact Us