Lewis Smith Dam Quick Facts
Lewis Smith Dam Map
Lewis Smith Dam Information
Lewis Smith Dam is a rockfill dam located about 12 miles from Sipsey, Walker, Alabama.
The dam, which is on the Sipsey Fork, Warrior River, was primarily built for Hydroelectric purposes, but also serves for Navigation, Recreation and Flood Risk Reduction benefits.
The dam was designed by ALABAMA POWER COMPANY and commissioned in 1961 and is currently owned by Alabama Power Company.
Lewis Smith Dam Structure
The Lewis Smith Dam is approximately 2,200 feet (671 m) long, 300 feet (91 m) high and has a structural volume of 5,195,000 cubic yards (3,971,863 cubic metres).
Lewis Smith Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 1,390,000 acre-ft (1,714,537 Ml) and maximum capacity of 1,670,600 acre-ft (2,060,652 Ml).
The surface area of the reservoir is 21,200 acres (8,579 ha) and the total catchment area is 944 square miles (2,445 square kilometres).
Lewis Smith Dam Spillway
The dam has a 350 feet (107 m) wide uncontrolled spillway with a maximum discharge capacity of 317800 cubic feet per second (8999 cubic metres per second).
Lewis Smith Dam Compared to Five Famous American Dams
Lewis Smith Dam Weather
Current Conditions at Lewis Smith Dam
Failed to fetch current weather data.7-Day Forecast for Lewis Smith Dam
Failed to fetch weather forecast data.Lewis Smith Dam Frequently Asked Questions
Lewis Smith Dam is in Alabama.
Lewis Smith Dam is in Walker County.
Lewis Smith Dam is 300 feet high.
Lewis Smith Dam is 2,200 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