Sheridan Lake Dam, South Dakota, USA

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Quick Facts About Sheridan Lake Dam

Location: Pennington, South Dakota
Coordinates: 43.975277, -103.450664
River: Spring Creek River
Primary Purpose: Recreation
Type: Earth
Commissioned: 1939
Dam Height: 134 ft (41 m)
Dam Length: 850 ft (259 m)
Dam Capacity: 22,043 acre-ft (27,190 Ml)

Sheridan Lake Dam Map

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Sheridan Lake Dam Information

Sheridan Lake Dam is an earthen embankment dam located about 6 miles from Stratasphere Bowl, Pennington, South Dakota.

The dam, which is on the Spring Creek River, was primarily built for Recreation purposes, but also serves for Fish and Wildlife Pond benefits.

The dam was designed by and commissioned in 1939 and is currently owned by USDA FS.

Sheridan Lake Dam Structure

The Sheridan Lake Dam is approximately 850 feet (259 m) long, 134 feet (41 m) high and has a structural volume of 723,471 cubic yards (553,133 cubic metres).

Sheridan Lake Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 13,395 acre-ft (16,522 Ml) and maximum capacity of 22,043 acre-ft (27,190 Ml).

The surface area of the reservoir is 0 acres (0 ha) and the total catchment area is 148 square miles (383 square kilometres).

Sheridan Lake Dam Spillway

The dam has a 30 feet (9 m) wide controlled spillway with a maximum discharge capacity of 24170 cubic feet per second (684 cubic metres per second).

Sheridan Lake Dam Compared to Four Famous American Dams

Sheridan Lake Dam
Pennington, South Dakota
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) 134 730 550 357 216
Length (Ft) 850 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 22,043 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 148 167,800 74,100 3,611 108,355

Sheridan Lake Dam Weather

Current Conditions at Sheridan Lake Dam

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7-Day Forecast for Sheridan Lake Dam

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Sheridan Lake Dam Frequently Asked Questions

In which state is the Sheridan Lake Dam?

Sheridan Lake Dam is in South Dakota.

In which county is the Sheridan Lake Dam?

Sheridan Lake Dam is in Pennington County.

How high is the Sheridan Lake Dam?

Sheridan Lake Dam is 134 feet high.

How long is the Sheridan Lake Dam?

Sheridan Lake Dam is 850 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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