Cannonsville Dam, New York, USA

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Quick Facts About Cannonsville Dam

Location: Delaware, New York
Coordinates: 42.065, -75.374
River: West Branch Delaware River
Primary Purpose: Hydroelectric
Type:
Commissioned: 1964
Dam Height: 175 ft (53 m)
Dam Length: 2,800 ft (853 m)
Dam Capacity: 434,300 acre-ft (535,700 Ml)

Cannonsville Dam Map

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Cannonsville Dam Information

Cannonsville Dam is dam located in Deposit, Delaware, New York.

The dam, which is on the West Branch Delaware River, was primarily built for Hydroelectric purposes, but also serves for Water Supply benefits.

The dam was designed by and commissioned in 1964 and is currently owned by City of New York.

Cannonsville Dam Structure

The Cannonsville Dam is approximately 2,800 feet (853 m) long, 175 feet (53 m) high and has a structural volume of cubic yards (0 cubic metres).

Cannonsville Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 300,000 acre-ft (370,044 Ml) and maximum capacity of 434,300 acre-ft (535,700 Ml).

The surface area of the reservoir is 4,800 acres (1,942 ha) and the total catchment area is 456 square miles (1,181 square kilometres).

Cannonsville Dam Spillway

The dam has a 800 feet (244 m) wide uncontrolled spillway with a maximum discharge capacity of 200000 cubic feet per second (5663 cubic metres per second).

Cannonsville Dam Compared to Four Famous American Dams

Cannonsville Dam
Delaware, New York
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) 175 730 550 357 216
Length (Ft) 2,800 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 434,300 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 456 167,800 74,100 3,611 108,355

Cannonsville Dam Weather

Current Conditions at Cannonsville Dam

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7-Day Forecast for Cannonsville Dam

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Cannonsville Dam Frequently Asked Questions

In which state is the Cannonsville Dam?

Cannonsville Dam is in New York.

In which county is the Cannonsville Dam?

Cannonsville Dam is in Delaware County.

How high is the Cannonsville Dam?

Cannonsville Dam is 175 feet high.

How long is the Cannonsville Dam?

Cannonsville Dam is 2,800 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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