Prosser
Dam
Dam Design and Construction:
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Construction type
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Construction dates:
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started 1960, completed 1962
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Dam
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Crest elevation:
5761 MSL
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Height above streambed:
139 ft
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Freeboard:
6.5 ft
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Crest width:
30 ft
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Total volume of embankment: 1,803,000
cu-yd
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Type
ungated
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Crest elevation
5741.2 MSL
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Crest length
15 ft
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Discharge capacity
2750 cfs
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Outlet
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Intake structure
8 ft diameter concrete conduit
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Emergency gates
Hydraulic slide
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Control gates type
Hydraulic slide
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Maximum outlet capacity
1850 cfs
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Cross Section
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Reservior
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Storage capacities
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minimum pool
1200 ac-ft
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flood control
9800 ac-ft
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gross pool
29800 ac-ft
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spillway design flood pool 41300 ac-ft
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