Horseshoe Dam, Arizona, USA

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Quick Facts About Horseshoe Dam

Location: Maricopa, Arizona
Coordinates: 33.9837, -111.7112
River: Verde River
Primary Purpose: Irrigation
Type: Rockfill Earth
Commissioned: 1945
Dam Height: 202 ft (62 m)
Dam Length: 1,994 ft (608 m)
Dam Capacity: 214,372 acre-ft (264,424 Ml)
Condition Assessment: Not Available

Horseshoe Dam Map

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Horseshoe Dam Information

Horseshoe Dam is a rockfill earth dam located about 16 miles from Fort Mcdowell, Maricopa, Arizona.

The dam, which is on the Verde River, was primarily built for Irrigation purposes, but also serves for Water Supply benefits.

The dam was designed by US Bureau of Reclamation and commissioned in 1945 and is currently owned by US Bureau of Reclamation.

Horseshoe Dam Structure

The Horseshoe Dam is approximately 1,994 feet (608 m) long, 202 feet (62 m) high and has a structural volume of 1,082,000 cubic yards (827,249 cubic metres).

Horseshoe Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 131,427 acre-ft (162,113 Ml) and maximum capacity of 214,372 acre-ft (264,424 Ml).

The surface area of the reservoir is 3,656 acres (1,480 ha) and the total catchment area is 5,618 square miles (14,551 square kilometres).

Horseshoe Dam Spillway

The dam has a 342 feet (104 m) wide controlled spillway with a maximum discharge capacity of 250000 cubic feet per second (7079 cubic metres per second).

Horseshoe Dam Compared to Four Famous American Dams

Horseshoe Dam
Maricopa, Arizona
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) 202 730 550 357 216
Length (Ft) 1,994 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 214,372 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 5,618 167,800 74,100 3,611 108,355

Horseshoe Dam Weather

Current Conditions at Horseshoe Dam

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7-Day Forecast for Horseshoe Dam

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Horseshoe Dam Frequently Asked Questions

In which state is the Horseshoe Dam?

Horseshoe Dam is in Arizona.

In which county is the Horseshoe Dam?

Horseshoe Dam is in Maricopa County.

How high is the Horseshoe Dam?

Horseshoe Dam is 202 feet high.

How long is the Horseshoe Dam?

Horseshoe Dam is 1,994 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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