About
LocationWA
RegionYakima County
Managed byUS Bureau of Reclamation
SizeMedium — about a day
Acres971 acres
Good forCampingFishingSwimmingBoating

Bumping Lake is a lake and reservoir along the course of the Bumping River, in Yakima County, Washington state, USA. Bumping Lake was also named as "Lake Plehnam" by Preston's Map of Oregon and Washington in the 1850s, and "Tannum Lake" by the United States General Land Office Map of Washington of 1897. The lake is used as a storage reservoir for the Yakima Project, an irrigation project run by the United States Bureau of Reclamation. Although a natural lake, Bumping Lake's capacity and discharge is controlled by Bumping Lake Dam, a 60-foot (18 m) high earthfill structure built in 1910 and modified in the 1990s. As a storage reservoir, Bumping Lake's active capacity is 33,700 acre⋅ft (41.6 million m3).
Adapted from the Wikipedia article Bumping Lake, available under CC BY-SA 4.0.

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