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River Flows for Hydro Plants

You may track, on an hourly basis, water levels and flows of the recreational rivers and lakes near AEP's hydroelectric facilities. See a map of our plant locations.

Explanation of terms

  • The "Forebay" and "Tailwater" numbers show the feet above sea level of the water levels immediately upstream and downstream from our plants.
  • "Tailwater Flow" is the hourly average of the river flow just downstream of the plants, measured in cubic feet per second.

Updated 20-JUL-2024 14:05 EDT

New River Flows & Forecasts

Water release information for AEP's Claytor, Buck, and Byllesby hydro dams is updated every fifteen minutes. PLEASE NOTE: Forecast information is estimated. Water travel times may be affected by water conditions, precipitation in the watershed and other factors

Most Recent Conditions

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet) Tail Water (CFS)
Buck 2003.40 1994.23 1960.50 1844
Byllesby 2079.20 2078.75 2022.85 2043
Claytor 1846.00 1845.55 1730.73 1888

See plant-specific notices below.

New River - Downstream Forecasts

Forecast information shows water release information from the Claytor dam, delayed to account for the average time it takes the released water to reach particular points downstream. Water travel times may be affected by water conditions, precipitation in the watershed and other factors.

Kanawha River

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet) Tail Water (CFS)
London 614.00 614.09 590.63 1551
Marmet 590.00 590.01 566.13 1761
Winfield 566.00 566.28 538.87 3557

See plant-specific notices below.

Roanoke River

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet) Tail Water (CFS)
Leesville 613.00.00 604.54 535.04 2559
Niagara 885.00 885.45
Smith Mountain 795.00 793.05 604.75

See plant-specific notices below.

Saint Joseph River

Project Normal Full Pond Forebay Actual (Feet) Tail Water (Feet) Tail Water (CFS)
Berrien Springs 623.50 623.56 600.12 8659
Buchanan summer: 637.50
winter: 637.20
637.48 626.74 6950
Constantine 782.90 784.43 773.39
Elkhart 741.50
winter: 739.50
741.60 723.21
Mottville summer: 770.40
winter: 770.00
770.40 762.38 2475
Twin Branch 717.10 716.92 697.31 6909

See plant-specific notices below.

Plant-Specific Notices

As of 05:00 this morning, Saturday July 20, 2024, inflow to the Smith Mountain Project was 421 CFS and the discharge from Leesville was 687 CFS. The adjusted reservoir elevations was 793.7 ft. The flow rate at the USGS Gauge at Brookneal was 1020 CFS, Stage 4.56 ft. and at Altavista 830 CFS, Stage 2.13 ft.

July 5, 2024 - The Buck portage on the New River will be closed for two weeks to allow for routine maintenance repairs at the Buck Dam. The repairs require lowering the Buck reservoir to an elevation of 1,994 feet, or approximately 9 feet below full pond of 2,003 feet. The drawdown is scheduled to start on Sunday, July 7. At a drawdown rate of 1 foot every three hours, the Buck reservoir is expected to reach the desired drawdown elevation by midday Monday, July 8. Signs indicating the portage closure will be posted at Virginia Department of Wildlife Resources public access points upstream of the Buck reservoir. The alternative for river kayakers and canoeists is to take out at the Byllesby reservoir, the last access before reaching Buck. The nearest location to put in downstream of the dam (hand-launching only) is at Ivanhoe. Appalachian Power plans to make repairs to the wooden flashboards at Buck Dam. Upon completion of the repairs, the reservoir will be refilled based upon water inflow.

July 19, 2024 -Appalachian Power Company (Appalachian) is partnering with the Altavista Fire Department in providing requested flows on the Roanoke River at Altavista to accommodate their swift water rescue training. The requested flows are to have the river gauge at Altavista be at least 4 feet for the training. Based on current river flows, this would be an approximate 2-foot increase in the gauge height. The training is scheduled to take place from 8:00 AM to 4:00 PM on July 20 and 21, 2024. Therefore, beginning at approximately 5 AM both days, Appalachian will incrementally extend the release time per hour from Leesville Dam to provide the requested river flow for the training. Beginning at approximately 2:00 PM both days, normal operational release times per hour will be resumed.