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Osborn Grant Dam
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Osborn Grant Dam Share
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Overview Share
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Wetumka, Oklahoma
Flood Control
Privately owned
Built in 1978

Osborn Grant Dam is an earth dam built on the Tr-Long George CR River and is located in Wetumka, Oklahoma. It was built in 1978 for the purpose of flood control.

The dam is privately owned by Ray & Clara Steele. The dam used to be known as Osborn Grant.

Location
Osborn Grant Dam
Wetumka, Oklahoma, U.S.
Dam type
Earth
Dam type
Flood control
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Ray & Clara Steele
Owner
Private

Osborn Grant Dam is privately owned by Ray & Clara Steele.

Construction Share
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1978
Completed
USDA NRCS
Dam designer
Tr-Long George CR River
River built on
Osborn Grant Dam was built in 1978.
Metrics Share
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Summary
Dam length 500 feet
Dam height 25 feet
Structural height 25 feet
Hydraulic height 20 feet
Max discharge 1,630 cubic feet per second
Max storage 187 acre feet
Normal storage 100 acre feet
Surface area 4 acres
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.

25 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.

20 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.

1,630 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.

187 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.

100 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 acres
Surface area

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

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.

8/9/2011
Most recent inspection date

Inspections are every 5 years.

About Share
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Former name Osborn Grant
Latitude 35
Longitude -96
NID ID (National ID) OK13123

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