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Structure No. 20F Dam
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Structure No. 20F Dam Share
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Overview Share
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None-Biscayne Bay, Florida
Flood Control
State owned
Built in 1967

Structure No. 20F Dam is built on the Mowry Canal (C-103) River and is located in None-Biscayne Bay, Florida. It was built in 1967 for the purpose of flood control.

The state-owned dam is owned by the South Florida Water Management District SFWMD.

Location
Structure No. 20F Dam
None-Biscayne Bay, Florida, U.S.
Dam type
Other
Dam type
Flood control
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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South Florida Water Management District SFWMD
Owner
State

The state-owned dam is owned by the South Florida Water Management District SFWMD.

Construction Share
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1967
Completed
Mowry Canal (C-103) River
River built on
Structure No. 20F Dam was built in 1967.
Metrics Share
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Summary
Dam length 295 feet
Dam height 32 feet
Structural height 14 feet
Hydraulic height 32 feet
Max discharge 2,900 cubic feet per second
Max storage 683 acre feet
Normal storage 624 acre feet
Surface area 21 acres
295 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.

32 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.

14 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.

32 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.

2,900 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.

683 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.

624 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.

21 acres
Surface area

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

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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.

No 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.

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Latitude 25
Longitude -80
NID ID (National ID) FL00401

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