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Power Lake Dam
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Power Lake Dam Share
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Overview Share
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Cusick, Washington
Hydroelectric
Public utility owned
Built in 1922

Power Lake Dam is built on the North Fork Calispell Creek River and is located in Cusick, Washington. It was built in 1922 and modified in 1995O; for the purpose of hydroelectric.

The dam is owned by the public utility, Pend Oreille Public Utility District. It is also known as Calispell Dam.

Location
Power Lake Dam
Cusick, Washington, U.S.
Dam type
Other
Dam type
Hydroelectric
Purpose
Unknown
Foundation type
Unknown
Core type
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Pend Oreille Public Utility District
Owner
Public utility

Power Lake Dam is owned by the public utility, Pend Oreille Public Utility District.

Construction Share
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1922
Completed
1995O;
Modified
H.A.Sewell
Dam designer
North Fork Calispell Creek River
River built on
Power Lake Dam was built in 1922 and modified in 1995O;.
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Summary
Dam length 150 feet
Dam height 56 feet
Structural height 56 feet
Hydraulic height 56 feet
Max discharge 11,300 cubic feet per second
Max storage 1,450 acre feet
Normal storage 1,000 acre feet
Surface area 62 acres
Drainage area 56 square miles
150 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.

56 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.

56 feet
Structural height

Structural height of the dam is defined as the vertical distance from the lowest point of the excavated foundation to the top of the dam. Top of dam refers to the parapet wall and not the crest.

56 feet
Hydraulic height

Hydraulic height of the dam is defined as the vertical difference between the maximum design water level and the lowest point in the original streambed.

11,300 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.

1,450 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.

1,000 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.

62 acres
Surface area

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

56 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.

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High
Downstream potential hazard

Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.

Has emergency action plan
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.

9/9/2015
Most recent inspection date

Inspections are every 5 years.

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Also known as Calispell Dam
Distance to nearest town (miles) 8
Latitude 48
Longitude -117
NID ID (National ID) WA00010

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