Roanoke Rapids Dam, North Carolina, USA

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Quick Facts About Roanoke Rapids Dam

Location: Northampton, North Carolina
Coordinates: 36.4817, -77.6733
River: Roanoke River
Primary Purpose: Hydroelectric
Type: Gravity Concrete
Commissioned: 1955
Dam Height: 72 ft (22 m)
Dam Length: 3,050 ft (930 m)
Dam Capacity: 80,690 acre-ft (99,530 Ml)

Roanoke Rapids Dam Map

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Roanoke Rapids Dam Information

Roanoke Rapids Dam is a gravity concrete dam located in Roanoke Rapids, Northampton, North Carolina.

The dam, which is on the Roanoke River, was primarily built for Hydroelectric purposes, but also serves for Fish and Wildlife Pond, Recreation and Water Supply benefits.

The dam was designed by STONE & WEBSTER and commissioned in 1955 and is currently owned by Virginia Electric and Power Company.

Roanoke Rapids Dam Structure

The Roanoke Rapids Dam is approximately 3,050 feet (930 m) long, 72 feet (22 m) high and has a structural volume of 245,000 cubic yards (187,316 cubic metres).

Roanoke Rapids Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 77,140 acre-ft (95,151 Ml) and maximum capacity of 80,690 acre-ft (99,530 Ml).

The surface area of the reservoir is 4,600 acres (1,862 ha) and the total catchment area is 8,400 square miles (21,756 square kilometres).

Roanoke Rapids Dam Spillway

The dam spillway has a maximum discharge capacity of 711000 cubic feet per second (20133 cubic metres per second).

Roanoke Rapids Dam Compared to Four Famous American Dams

Roanoke Rapids Dam
Northampton, North Carolina
Hoover Dam
Clark County, Nevada
Grand Coulee Dam
Okanogan County, Washington
Theodore Roosevelt Dam
Maricopa County, Arizona
Glen Canyon Dam
Coconino County, Arizona
Height (ft) 72 730 550 357 216
Length (Ft) 3,050 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 80,690 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 8,400 167,800 74,100 3,611 108,355

Roanoke Rapids Dam Weather

Current Conditions at Roanoke Rapids Dam

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7-Day Forecast for Roanoke Rapids Dam

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Roanoke Rapids Dam Frequently Asked Questions

In which state is the Roanoke Rapids Dam?

Roanoke Rapids Dam is in North Carolina.

In which county is the Roanoke Rapids Dam?

Roanoke Rapids Dam is in Northampton County.

How high is the Roanoke Rapids Dam?

Roanoke Rapids Dam is 72 feet high.

How long is the Roanoke Rapids Dam?

Roanoke Rapids Dam is 3,050 feet long.

Condition Assessment Classification

Satisfactory

No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.

Fair

No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum

Poor

A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.

Unsatisfactory

A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.

Not Rated

The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.

Not Available

Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High

Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.

Significant

Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.

Low

Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner’s property.

Undetermined

Dams for which a downstream hazard potential has not been designated or is not provided.

Not Available

Dams for which the downstream hazard potential is restricted to approved government users.

Source: National Inventory of Dams

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