Bonny Dam, Colorado, USA

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Quick Facts About Bonny Dam

Location: Yuma, Colorado
Coordinates: 39.6253, -102.1739
River: South Republican River
Primary Purpose: Flood Risk Reduction
Type: Earth
Commissioned: 1951
Dam Height: 130 ft (40 m)
Dam Length: 9,200 ft (2,804 m)
Dam Capacity: 348,390 acre-ft (429,732 Ml)
Condition Assessment: Not Available

Bonny Dam Map

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Bonny Dam Information

Bonny Dam is an earthen embankment dam located about 1 miles from Hale, Yuma, Colorado.

The dam, which is on the South Republican River, was primarily built for Flood Risk Reduction purposes, but also serves for Irrigation and Recreation benefits.

The dam was designed by and commissioned in 1951 and is currently owned by US Bureau of Reclamation.

Bonny Dam Structure

The Bonny Dam is approximately 9,200 feet (2,804 m) long, 130 feet (40 m) high and has a structural volume of 8,853,000 cubic yards (6,768,605 cubic metres).

Bonny Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 41,342 acre-ft (50,995 Ml) and maximum capacity of 348,390 acre-ft (429,732 Ml).

The surface area of the reservoir is 8,565 acres (3,466 ha) and the total catchment area is 1,820 square miles (4,714 square kilometres).

Bonny Dam Spillway

The dam has a 138 feet (42 m) wide controlled spillway with a maximum discharge capacity of 73300 cubic feet per second (2076 cubic metres per second).

Bonny Dam Compared to Four Famous American Dams

Bonny Dam
Yuma, Colorado
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) 130 730 550 357 216
Length (Ft) 9,200 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 348,390 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 1,820 167,800 74,100 3,611 108,355

Bonny Dam Weather

Current Conditions at Bonny Dam

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7-Day Forecast for Bonny Dam

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Bonny Dam Frequently Asked Questions

In which state is the Bonny Dam?

Bonny Dam is in Colorado.

In which county is the Bonny Dam?

Bonny Dam is in Yuma County.

How high is the Bonny Dam?

Bonny Dam is 130 feet high.

How long is the Bonny Dam?

Bonny Dam is 9,200 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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