Hydro Plant Levels & Flows

This information is updated every hour for river users near AEP's hydroelectric facilities. See plant locations.

Explanation of terms: The 'Forebay' and 'Tailwater' numbers show the elevation, in feet above sea level, of the water levels just upstream and downstream of the plants. 'Tailwater Flow' is the hourly average of the river flow just downstream of the plants, measured in cubic feet per second.

Updated 19-SEP-2018 04:35 EDT

Roanoke River

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet)
Niagara 885.00 885.80
Smith Mountain 795.00 793.46 604.68
Leesville 613.00 606.04 531.69

Smith Mountain Adjusted Elevation: 794.26
This is the level the lake would be if the water currently held in the lower Leesville Lake for reuse were pumped back into Smith Mountain Lake.

See the Additional Information section below for plant-specific notices.

New River

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet) Tail Water Flow (CFS)
Buck 2003.40 2002.81 1963.94 13196
Byllesby 2079.20 2075.70 2023.63 14064
Claytor 1846.00 1846.53 1730.64 14969

Our New River Flows & Forecasts pages show information about releases from AEP's Claytor dam and forecasted water conditions downstream.

See the Additional Information section below for plant-specific notices.

Kanawha River

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet) Tail Water Flow (CFS)
London 614.00 614.00 599.18 5545
Marmet 590.00 589.95 578.06 4259
Winfield 566.00 566.24 548.99 6556

See the Additional Information section below for plant-specific notices.

Ohio River

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet) Tail Water Flow (CFS)
Racine 560.00 560.70 548.91 0

See the Additional Information section below for plant-specific notices.

Saint Joseph River

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet) Tail Water Flow (CFS)
Constantine 782.90 782.86 771.31
Mottville summer: 770.40
winter: 770.00
770.44 758.80 934
Elkhart summer: 741.50
winter: 739.50
741.55 721.80
Twin Branch 717.10 717.09 695.69 2448
Buchanan summer: 637.50
winter: 637.00
637.45 624.45 2160
Berrien Springs 623.50 623.53 598.63 3043

See the Additional Information section below for plant-specific notices.

Additional Information

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AS OF 05:00 THIS MORNING TUESDAY SEPTEMBER 18, 2018, INFLOW TO THE SMITH MOUNTAIN PROJECT WAS 11772 CFS AND THE DISCHARGE FROM LEESVILLE 8479 CFS. THE ADJUSTED RESERVOIR ELEVATION WAS 793.88'. THE FLOW RATE AT THE USGS GAUGE AT BROOKNEAL WAS 16700 CFS, STAGE 16.98' AND AT ALTAVISTA 10900 CFS, STAGE 10.82'.

Appalachian Power is monitoring changing forecasts of storm impacts from remnants of Florence on its 6 hydroelectric dams on the New and Roanoke rivers in Virginia. Targeted drawdowns of the reservoirs at Claytor, Buck, Smith Mountain and Leesville lakes were completed Thursday and Hydro Operations continues to adjust levels as needed. The New River could see predicted major flooding by Monday morning. Riverside residents, campers and businesses should be vigilant by monitoring and heeding weather service and law enforcement warnings.