Big Horn Dike A, Wyoming, USA

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Quick Facts About Big Horn Dike A

Location: Johnson, Wyoming
Coordinates: 44.5333, -107.2063
River: Cross Creek River
Primary Purpose: Irrigation
Type: Earth
Commissioned: 1964
Dam Height: 45 ft (14 m)
Dam Length: 775 ft (236 m)
Dam Capacity: 5,756 acre-ft (7,100 Ml)

Big Horn Dike A Map

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Big Horn Dike A Information

Big Horn Dike A is an earthen embankment dam located about 26 miles from Beckton, Johnson, Wyoming.

The dam, which is on the Cross Creek River, was primarily built for Irrigation purposes, but also serves for benefits.

The dam was designed by USDA NRCS and commissioned in 1964 and is currently owned by BIG HORN RESERVOIR COMPANY.

Big Horn Dike A Structure

The Big Horn Dike A is approximately 775 feet (236 m) long, 45 feet (14 m) high and has a structural volume of 67,500 cubic yards (51,607 cubic metres).

Big Horn Dike A Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 4,624 acre-ft (5,704 Ml) and maximum capacity of 5,756 acre-ft (7,100 Ml).

The surface area of the reservoir is 179 acres (72 ha) and the total catchment area is 11 square miles (28 square kilometres).

Big Horn Dike A Spillway

The dam has a 40 feet (12 m) wide uncontrolled spillway with a maximum discharge capacity of 4756 cubic feet per second (135 cubic metres per second).

Big Horn Dike A Compared to Four Famous American Dams

Big Horn Dike A
Johnson, Wyoming
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) 45 730 550 357 216
Length (Ft) 775 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 5,756 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 11 167,800 74,100 3,611 108,355

Big Horn Dike A Weather

Current Conditions at Big Horn Dike A

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7-Day Forecast for Big Horn Dike A

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Big Horn Dike A Frequently Asked Questions

In which state is the Big Horn Dike A?

Big Horn Dike A is in Wyoming.

In which county is the Big Horn Dike A?

Big Horn Dike A is in Johnson County.

How high is the Big Horn Dike A?

Big Horn Dike A is 45 feet high.

How long is the Big Horn Dike A?

Big Horn Dike A is 775 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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