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Lochmere Dam
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Lochmere Dam Share
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Overview Share
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East Tilton, New Hampshire
State owned
Built in 1910

Lochmere Dam is built on the Winnipesaukee River and is located in East Tilton, New Hampshire. It was built in 1910 .

The state-owned dam is owned by the New Hampshire Department of Environmental Service. It is also known as Winnisquam Lake Dam.

Location
Lochmere Dam
East Tilton, New Hampshire, U.S.
Dam type
Other
Dam type
Other
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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New Hampshire Department of Environmental Service
Owner
State

The state-owned dam is owned by the New Hampshire Department of Environmental Service.

Construction Share
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1910
Completed
Winnipesaukee River
River built on
Lochmere Dam was built in 1910.
Metrics Share
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Summary
Dam length 223 feet
Dam height 11 feet
Max discharge 2,400 cubic feet per second
Max storage 33,280 acre feet
Normal storage 20,800 acre feet
Surface area 4,264 acres
Drainage area 428 square miles
223 feet
Dam length

Length of the dam is defined as the length along the top of the dam. This also includes the spillway, powerplant, navigation lock, fish pass, etc., where these form part of the length of the dam. If detached from the dam, these structures should not be included.

11 feet
Dam height

Height of the dam is defined as the vertical distance between the lowest point on the crest of the dam and the lowest point in the original streambed.

2,400 cubic feet per second
Max discharge

Number of cubic feet per second the spillway is capable of discharging when the reservoir is at its maximum designed water surface elevation.

33,280 acre feet
Max storage

Maximum storage is defined as the total storage space in a reservoir below the maximum attainable water surface elevation, including any surcharge storage.

20,800 acre feet
Normal storage

Normal storage is defined as the total storage space in a reservoir below the normal retention level, including dead and inactive storage and excluding any flood control or surcharge storage. For normally dry flood control dams, the normal storage will be a zero value.

4,264 acres
Surface area

Surface area, in acres, of the impoundment at its normal retention level.

428 square miles
Drainage area

Drainage area of the dam, in square miles, which is defined as the area that drains to a particular point (in this case, the dam) on a river or stream.

Safety Share
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Low
Downstream potential hazard

Dams assigned the low hazard potential classification are those where failure or misoperation results in no probable loss of human life and low economic and/or environ-mental losses. Losses are principally limited to the owner’s property.

Not required
Emergency action plan

An emergency action plan is defined as a plan of action to be taken to reduce the potential for property damage and loss of life in an area affected by a dam failure or large flood.

5/14/2015
Most recent inspection date

Inspections are every 3 years.

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Also known as Winnisquam Lake Dam
Distance to nearest town (miles) 1
Latitude 43
Longitude -71
NID ID (National ID) NH00015

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