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Johnson Dam (Washington Co)
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Johnson Dam (Washington Co) Share
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Overview Share
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Wapello, Iowa
Privately owned
Built in 2005

Johnson Dam (Washington Co) is an earth dam built on the TR- Long Creek River and is located in Wapello, Iowa. It was built in 2005 .

The dam is privately owned by Jackie Johnson. It is also known as Johnson/Wagner Dam.

Location
Johnson Dam (Washington Co)
Wapello, Iowa, U.S.
Dam type
Earth
Dam type
Other
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Jackie Johnson
Owner
Private

Johnson Dam (Washington Co) is privately owned by Jackie Johnson.

Construction Share
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2005
Completed
USDA NRCS
Dam designer
TR- Long Creek River
River built on
Johnson Dam (Washington Co) was built in 2005.
Metrics Share
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Summary
Dam length 500 feet
Dam height 25 feet
Max discharge 34 cubic feet per second
Max storage 159 acre feet
Surface area 12 acres
Drainage area 0 square miles
500 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.

25 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.

34 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.

159 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.

12 acres
Surface area

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

0 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.

About Share
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Also known as Johnson/Wagner Dam
Distance to nearest town (miles) 31
Latitude 41
Longitude -91
NID ID (National ID) IA04058

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