Quick Facts About Gathright Dam
Gathright Dam Map
Gathright Dam Information
Gathright Dam is a rockfill earth dam located about 19 miles from Covington, Alleghany, Virginia.
The dam, which is on the Jackson River, was primarily built for Flood Risk Reduction purposes, but also serves for Fish and Wildlife Pond and Recreation benefits.
The dam was designed by CENAO and commissioned in 1978 and is currently owned by USACE – Norfolk District.
Gathright Dam Structure
The Gathright Dam is approximately 1,208 feet (368 m) long, 257 feet (78 m) high and has a structural volume of 2,103,200 cubic yards (1,608,012 cubic metres).
Gathright Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 123,700 acre-ft (152,581 Ml) and maximum capacity of 421,500 acre-ft (519,912 Ml).
The surface area of the reservoir is 2,530 acres (1,024 ha) and the total catchment area is 345 square miles (894 square kilometres).
Gathright Dam Spillway
The dam has a 100 feet (30 m) wide uncontrolled spillway with a maximum discharge capacity of 6100 cubic feet per second (173 cubic metres per second).
Gathright Dam Compared to Four Famous American Dams
| Gathright Dam Alleghany, Virginia |
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) | 257 | 730 | 550 | 357 | 216 |
| Length (Ft) | 1,208 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 421,500 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 345 | 167,800 | 74,100 | 3,611 | 108,355 |
Gathright Dam Weather
Current Conditions at Gathright Dam
Failed to fetch current weather data.7-Day Forecast for Gathright Dam
Failed to fetch weather forecast data.Gathright Dam Frequently Asked Questions
Gathright Dam is in Virginia.
Gathright Dam is in Alleghany County.
Gathright Dam is 257 feet high.
Gathright Dam is 1,208 feet long.
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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