Quick Facts About Mathis & Terrora Dam
Mathis & Terrora Dam Map
Mathis & Terrora Dam Information
Mathis & Terrora Dam is a buttress dam located in None, Rabun, Georgia.
The dam, which is on the Tallulah River, was primarily built for Hydroelectric purposes, but also serves for Fish and Wildlife Pond and Recreation benefits.
The dam was designed by and commissioned in 1925 and is currently owned by Georgia Power Company.
Mathis & Terrora Dam Structure
The Mathis & Terrora Dam is approximately 764 feet (233 m) long, 113 feet (34 m) high and has a structural volume of cubic yards (0 cubic metres).
Mathis & Terrora Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 27,250 acre-ft (33,612 Ml) and maximum capacity of 31,000 acre-ft (38,238 Ml).
The surface area of the reservoir is 834 acres (338 ha) and the total catchment area is 151 square miles (391 square kilometres).
Mathis & Terrora Dam Spillway
The dam has a 252 feet (77 m) wide controlled spillway with a maximum discharge capacity of 38000 cubic feet per second (1076 cubic metres per second).
Mathis & Terrora Dam Compared to Four Famous American Dams
| Mathis & Terrora Dam Rabun, Georgia |
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) | 113 | 730 | 550 | 357 | 216 |
| Length (Ft) | 764 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 31,000 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 151 | 167,800 | 74,100 | 3,611 | 108,355 |
Mathis & Terrora Dam Weather
Current Conditions at Mathis & Terrora Dam
Failed to fetch current weather data.7-Day Forecast for Mathis & Terrora Dam
Failed to fetch weather forecast data.Mathis & Terrora Dam Frequently Asked Questions
Mathis & Terrora Dam is in Georgia.
Mathis & Terrora Dam is in Rabun County.
Mathis & Terrora Dam is 113 feet high.
Mathis & Terrora Dam is 764 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