Water Levels

River System Data

Ontario Power Generation operates 66 hydroelectric stations and 239 dams on 24 river systems.

WATER LEVELS

Northwest

South Central Southeast Northeast Northwest

About this data

The maps on this site include markers representing the location of gauges where information on flows and water levels are available. These are used in the management of principal reservoirs within Ontario's river basins. Click on ‘Graphs and Advanced Data’ for facility details, near real-time data and historical information. Please note: Data at some locations are managed by regional control boards and accessible from the facility profile.

Aguasabon River 9/12 9/13 9/14 9/15 9/16 9/17 9/18
Kenogami Control Dam Level - - - - - - -
Graphs and Advanced Data Flow 2.3 2.3 2.3 2.3 1.7 0.8 0.8
Long Lake Control Dam Level - - - - - - -
Graphs and Advanced Data Flow 54.4 53.6 34.6 23.9 23.8 23.6 23.2
Long Lake Level 312.57 312.54 312.53 312.52 312.50 312.49 312.49
Graphs and Advanced Data Flow - - - - - - -
Aguasabon Generating Station Level 273.62 273.64 273.62 273.55 273.54 273.54 273.53
Graphs and Advanced Data Flow 51.6 55.9 56.9 42.1 29.3 29.4 14.3
English River 9/12 9/13 9/14 9/15 9/16 9/17 9/18
Cedars Channels Control Dam Level - - - - - - -
Graphs and Advanced Data Flow - - - - - - -
Rat Rapids Control Dam Level - - - - - - -
Graphs and Advanced Data Flow - - - - - - -
Root River Control Dam Level - - - - - - -
Graphs and Advanced Data Flow - - - - - - -
Ear Falls/Lac Seul Generating Station Level - - - - - - -
Graphs and Advanced Data Flow - - - - - - -
Manitou Falls Generating Station Level - - - - - - -
Graphs and Advanced Data Flow - - - - - - -
Caribou Falls Generating Station Level - - - - - - -
Graphs and Advanced Data Flow - - - - - - -
Kaministiquia River 9/12 9/13 9/14 9/15 9/16 9/17 9/18
Kashabowie Control Dam Level 459.15 459.15 459.14 459.14 459.14 459.14 459.14
Graphs and Advanced Data Flow 0.7 0.7 0.7 0.7 0.7 0.7 0.7
Greenwater Lake Control Dam Level 453.69 453.68 453.68 453.68 453.67 453.68 453.68
Graphs and Advanced Data Flow 1.2 1.2 1.2 1.1 1.1 1.1 1.1
Shebandowan Lake Control Dam Level 449.96 449.96 449.96 449.96 449.96 449.96 449.95
Graphs and Advanced Data Flow 2.5 2.4 2.5 2.5 2.5 2.5 2.5
Silver Falls Generating Station Level 420.56 420.54 420.53 420.52 420.52 420.50 420.49
Graphs and Advanced Data Flow 20.9 20.3 19.5 19.2 19.7 19.8 18.9
Upper Kam River (Dog River) at Hydroline Level 304.17 304.18 304.16 304.16 304.14 304.19 304.14
Graphs and Advanced Data Flow 17.7 17.9 17.0 17.0 16.3 18.2 16.2
Kakabeka Falls Generating Station Level 277.81 277.90 277.78 277.83 277.82 277.89 277.81
Graphs and Advanced Data Flow 22.8 23.7 24.4 23.8 20.7 25.0 23.8
Nipigon River 9/12 9/13 9/14 9/15 9/16 9/17 9/18
Waboose Control Dam Level 325.39 325.38 325.37 325.36 325.35 325.33 325.32
Graphs and Advanced Data Flow 2.1 2.1 2.1 2.1 2.1 2.1 2.1
Mojikit Lake Level 325.33 325.31 325.30 325.28 325.26 325.25 325.24
Graphs and Advanced Data Flow - - - - - - -
Ogoki Reservoir Level 325.36 325.35 325.33 325.32 325.31 325.29 325.28
Graphs and Advanced Data Flow - - - - - - -
Summit Control Dam Level - - - - - - -
Graphs and Advanced Data Flow 117.8 115.7 113.7 111.5 110.2 109.3 107.6
Lake Nipigon Level 259.92 259.92 259.92 259.91 259.91 259.92 259.91
Graphs and Advanced Data Flow - - - - - - -
Pine Portage Generating Station Level 259.85 259.84 259.83 259.82 259.82 259.83 259.81
Graphs and Advanced Data Flow - - - - - - -
Cameron Falls Generating Station Level 227.23 227.24 227.23 227.24 227.27 227.24 227.23
Graphs and Advanced Data Flow - - - - - - -
Alexander Generating Station Level 203.21 203.18 203.09 203.23 203.23 203.30 203.22
Graphs and Advanced Data Flow 240.9 242.7 242.5 243.2 245.0 243.1 251.9
Winnipeg River 9/12 9/13 9/14 9/15 9/16 9/17 9/18
Whitedog Falls Generating Station Level - - - - - - -
Graphs and Advanced Data Flow - - - - - - -
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River system data

Hydroelectric power is a clean, reliable, and low-cost way to produce the energy Ontario needs.

Ontario Power Generation (OPG) operates 66 hydroelectric stations and 239 dams on 24 river systems. These facilities help produce clean, reliable and low-cost electricity for Ontario.

This site provides information on water levels and flows at OPG hydroelectric facilities. Data is continuously collected using gauges that help safely manage OPG’s stations and dams in watersheds across the province.

Stay clear, stay safe

Around hydro stations, dams and surrounding waterways.

Learn more