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Water Levels By:
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Coralville Lake Reservoir
Stream Name: Iowa River
Gage Zero: 0 Ft. NGVD29
Record High Stage:717.02 Ft.
Longitude: -91.52778000
Latitude: 41.72472000
River Mile: 83.5 miles above the mouth of the Iowa River
Record High Stage Date: 06/15/2008

Drainage Area : 3115.00 Mi2
Location of Gage :

Located in Johnson County, IA. at the outlet works on the left end of Coralville Dam, 2.3 miles upstream from Rapid Creek and 4.3 miles northeast of the Post Office at Coralville. 

The Coralville Lake Reservoir Forecast can be found here:


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

Latest Data
12/02/2022 17:00 Central
Latest Stage686.62 Ft.
24 Hr. Change-0.10 Ft.
Tomorrow's Forecast
(Issued 12/02/2022 15:02)
686.49 Ft.   Plot Tomorrow's Forecast
Last Year's Stage686.43 Ft.
Gate 1 Level Level0.21 Ft.
Gate 2 Level Level1.14 Ft.
Gate 3 Level Level0.28 Ft.
24 Hr. Precip Total0.00 In.   View Pricip Table
Latest Air Temp54 °F
Latest Storage43,725 Acre-Ft.
% Flood Storage Utilized5.37 %
Latest Wind Info4 MPH NNE
Gusts at 8 MPH
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Daily Historic Data
(06:00 Central Reading)
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(Yearly Formatted)
Additional Links:
View Record Elevation High / Lows
Historic Flood Profiles (Belle Plaine to Coralville)
Coralville 24 Hour Elevation Calculator
More Coralville Lake Information
Rating Table
Flow Calculator
Reservoir Forecast
Coralville WebMet
Coralville Report
US Army Corps of Engineers - Rock Island District - Water Control Center - Contact Us