NPDP Dam Dictionary

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Term AKA Definition
Wetted perimeter The distance along the bottom and sides of a stream, creek, or channel in contact with the water.
Wilderness Tract or region of land uncultivated and uninhabited by human beings, or unoccupied by human settlements.
Windrow A ridge of loose material.
Winters Doctrine Provides that the establishment of a Indian Reservation impliedly reserves the amount of water necessary for the purposes of the reservation. Upheld by the U.S. Supreme Court.
Zoned earthfill Zoned embankment An embankment dam composed of zones of selected materials where the permeability of the material increases to the upstream or downstream face from the relatively impermeable core material.