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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
04/26/2018 15:00 Central
Latest Stage679.34 Ft.
24 Hr. Change-0.08 Ft.
Tomorrow's Forecast
(Issued 04/26/2018 08:48)
679.39 Ft.   Plot Tomorrow's Forecast
Last Year's Stage679.32 Ft.
Gate 1 Level Level4.04 Ft.
Gate 2 Level Level9.72 Ft.
Gate 3 Level Level3.97 Ft.
24 Hr. Precip Total0.00 In.   View Pricip Table
Latest Air Temp70 °F
Latest Storage12,623 Acre-Ft.
% Flood Storage Utilized0 %
Latest Wind Info3 MPH WSW
Gusts at 11 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