Townshend Dam, Vermont, USA

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Quick Facts About Townshend Dam

Location: Windham, Vermont
Coordinates: 43.051925, -72.7038577
River: West River
Primary Purpose: Flood Risk Reduction
Type: Rockfill Earth Gravity
Commissioned: 1961
Dam Height: 126 ft (38 m)
Dam Length: 1,700 ft (518 m)
Dam Capacity: 54,300 acre-ft (66,978 Ml)
Condition Assessment: Not Available

Townshend Dam Map

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Townshend Dam Information

Townshend Dam is a rockfill earth gravity dam located in Townshend, Windham, Vermont.

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

The dam was designed by CENAE and commissioned in 1961 and is currently owned by USACE – New England District.

Townshend Dam Structure

The Townshend Dam is approximately 1,700 feet (518 m) long, 126 feet (38 m) high and has a structural volume of 1,233,800 cubic yards (943,308 cubic metres).

Townshend Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 800 acre-ft (987 Ml) and maximum capacity of 54,300 acre-ft (66,978 Ml).

The surface area of the reservoir is 95 acres (38 ha) and the total catchment area is 278 square miles (720 square kilometres).

Townshend Dam Spillway

The dam has a 439 feet (134 m) wide uncontrolled spillway with a maximum discharge capacity of 201000 cubic feet per second (5692 cubic metres per second).

Townshend Dam Compared to Four Famous American Dams

Townshend Dam
Windham, Vermont
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) 126 730 550 357 216
Length (Ft) 1,700 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 54,300 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 278 167,800 74,100 3,611 108,355

Townshend Dam Weather

Current Conditions at Townshend Dam

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7-Day Forecast for Townshend Dam

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Townshend Dam Frequently Asked Questions

In which state is the Townshend Dam?

Townshend Dam is in Vermont.

In which county is the Townshend Dam?

Townshend Dam is in Windham County.

How high is the Townshend Dam?

Townshend Dam is 126 feet high.

How long is the Townshend Dam?

Townshend Dam is 1,700 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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