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Ball Mountain Dam Quick Facts

Location: Windham, Vermont
Coordinates: 43.127673, -72.7738704
River: West River
Primary Purpose: Flood Risk Reduction
Type: Earth
Commissioned: 1961
Dam Height: 247 ft (75 m)
Dam Length: 915 ft (279 m)
Dam Capacity: 54,700 acre-ft (67,471 Ml)
Condition Assessment: Not Available
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Ball Mountain Dam Map

Ball Mountain Dam Information

Ball Mountain Dam is an earthen embankment dam located in Jamaica, Windham, Vermont.

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

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

Ball Mountain Dam Structure

The Ball Mountain Dam is approximately 915 feet (279 m) long, 247 feet (75 m) high and has a structural volume of 0 cubic yards (0 cubic metres).

Ball Mountain Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 2,350 acre-ft (2,899 Ml) and maximum capacity of 54,700 acre-ft (67,471 Ml).

The surface area of the reservoir is 800 acres (324 ha) and the total catchment area is 172 square miles (445 square kilometres).

Ball Mountain Dam Spillway

The dam has a 235 feet (72 m) wide uncontrolled spillway with a maximum discharge capacity of 150000 cubic feet per second (4248 cubic metres per second).

Ball Mountain Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Ball Mountain Dam
Windham, Vermont
Height (ft)
247
Length (Ft)
915
Storage Volume (acre-ft)
54,700
Drainage Area (sq miles)
172
Hoover Dam
Clark County, Nevada
Height (ft)
730
Length (Ft)
1,244
Storage Volume (acre-ft)
30,237,000
Drainage Area (sq miles)
167,800
Grand Coulee Dam
Okanogan County, Washington
Height (ft)
550
Length (Ft)
5,673
Storage Volume (acre-ft)
9,562,0000
Drainage Area (sq miles)
74,100
Theodore Roosevelt Dam
Maricopa County, Arizona
Height (ft)
357
Length (Ft)
1,208
Storage Volume (acre-ft)
3,411,500
Drainage Area (sq miles)
5,736
Oroville Dam
Butte County, California
Height (ft)
235
Length (Ft)
6,920
Storage Volume (acre-ft)
3,540,000
Drainage Area (sq miles)
3,611
Glen Canyon Dam
Coconino County, Arizona
Height (ft)
216
Length (Ft)
1,565
Storage Volume (acre-ft)
29,875,000
Drainage Area (sq miles)
108,355

Ball Mountain Dam Weather

Current Conditions at Ball Mountain Dam

Parameter Value
Current Time 20:32
Sunrise 07:13
Sunset 16:16
Temperature (°F) 40
Feels Like (°F) 38
Cloud Coverage (%) 100
Pressure (inHg) 996
Humidity (%) 97
Wind Speed (mph) 3
Rain (mm) 3

7-Day Forecast for Ball Mountain Dam

Day Min Temp (°F) Max Temp (°F) Feels Like (°F) Pressure (inHg) Humidity (%) Wind Speed (mph) Wind Gust (mph) Wind Dir Precip Prob (%) Precip Volume (mm) Weather
Today 30 40 33 1007 100 16 34 WNW 100 48 rain and snow
Thu 15 35 15 1015 77 21 40 W 100 - snow
Fri 9 20 8 1037 73 11 25 WNW 5 - few clouds
Sat 7 25 23 1048 73 5 6 W 0 - clear sky
Sun 10 30 17 1043 80 5 9 SSE 0 - overcast clouds
Mon 27 33 29 1031 100 4 15 SSE 100 10 rain and snow
Tue 31 42 32 1008 100 18 38 W 100 11 rain and snow
Wed 21 32 20 1023 80 19 42 W 32 - light snow

Ball Mountain Dam Frequently Asked Questions

In which state is the Ball Mountain Dam?

Ball Mountain Dam is in Vermont.

In which county is the Ball Mountain Dam?

Ball Mountain Dam is in Windham County.

How high is the Ball Mountain Dam?

Ball Mountain Dam is 247 feet high.

How long is the Ball Mountain Dam?

Ball Mountain Dam is 915 feet long.

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More Dams in Windham County:

Ball Mountain Dam
Harriman Dam
Mansfield Hollow Dam
Somerset Dam
Townshend Dam
West Thompson Dam

More Dams in Vermont:

Ball Mountain Dam
Chittenden Reservoir Dam
Clark Falls Dam
Crystal Lake Dam
East Barre Dam
Great Averill Pond Dam
Green River Dam
Green River Reservoir Dike
Harriman Dam
Lake Bomoseen Dam
Lake Carmi Dam
Lake Groton Dam
Little Pond Dam
Marshfield No. 6 Dam
North Branch Dam
North Hartland Dam
North Springfield Dam
Peacham Pond Dam
Seymour Lake Dam
Somerset Dam
Townshend Dam
Union Village Dam
Waterbury Dam
Wrightsville Dam

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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