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Roza WW5 Reregulation Reservoir Dam
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Roza WW5 Reregulation Reservoir Dam Share
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Sunnyside, Washington
Irrigation
Public utility owned
Built in 2017

Roza WW5 Reregulation Reservoir Dam is an earth dam located in Sunnyside, Washington. It was built in 2017 for the purpose of irrigation.

The dam is owned by the public utility, Roza Irrigation District.

Location
Roza WW5 Reregulation Reservoir Dam
Sunnyside, Washington, U.S.
Dam type
Earth
Dam type
Irrigation
Purpose
Unknown
Foundation type
Unknown
Core type
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Roza Irrigation District
Owner
Public utility

Roza WW5 Reregulation Reservoir Dam is owned by the public utility, Roza Irrigation District.

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Summary
Dam length 5,200 feet
Dam height 70 feet
Structural height 70 feet
Hydraulic height 70 feet
Max discharge 125 cubic feet per second
Max storage 1,600 acre feet
Normal storage 1,600 acre feet
Drainage area 15 square miles
5,200 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.

70 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.

70 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.

70 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.

125 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.

1,600 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.

1,600 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.

15 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.

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Distance to nearest town (miles) 5
Latitude 46
Longitude -119
NID ID (National ID) WA00740

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