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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
12/10/2017 17:00 Central
Latest Stage686.44 Ft.
24 Hr. Change-0.08 Ft.
Tomorrow's Forecast
(Issued 12/10/2017 07:43)
686.43 Ft.   Plot Tomorrow's Forecast
Last Year's Stage686.05 Ft.
Gate 1 Level Level0.21 Ft.
Gate 2 Level LevelM
Gate 3 Level Level0.28 Ft.
24 Hr. Precip Total0.00 In.   View Pricip Table
Latest Air Temp36 °F
Latest Storage40,949 Acre-Ft.
% Flood Storage Utilized4.62 %
Latest Wind Info5 MPH NW
Gusts at 7 MPH
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Daily Historic Data
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(5-Year Limit)
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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