December 30, 2012

Beaver Dam, which creates Beaver Lake in northwest Arkansas, is a 2,575-foot-long dam, consisting of a 1,333-foot-long concrete section keyed into a limestone bluff, 1,242 feet of earth and rock embankment, and three small earth and rock dikes that fill gaps between adjacent hills. Maximum height of the dam above the streambed is 228 feet. Groundbreaking ceremonies were held in 1960, with the overall project completed in 1966.