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Lake AllatoonaGEORGIA |
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• River: Etowah River • Surface Area: 20,486 Acres • Volume: 367,500 Acre Feet • Maximum Depth: 145 feet The Allatoona Dam holding back the lake was completed in 1949 on the Etowah, which in turn merges into the Coosa River downstream (northwest) at Rome. The basin upstream (mostly northeast) of Allatoona covers about 1,100 square miles. This is nearly as large as the basin of Lake Lanier (Atlanta's biggest water source), but since the Allatoona is smaller, it drains and fills more rapidly than Lanier during droughts and floods. The lake's summer level has averaged 840 feet above mean sea level. During major droughts it has dropped as much as 13 feet below this, exposing old tree stumps and former hills which are normally submerged at depth safe for navigating boats. Its maximum capacity or flood stage is +23 feet [863 feet AMSL (Above Mean Sea Level], though it has never been known to reach this level, and flooding of boat ramps and other lakeside facilities begins to occur well below it. Hydroelectric power generation at Allatoona returns more than $3.5 million to the U.S. Treasury annually. The Corps of Engineers has 662 campsites on Allatoona. |
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