Chattahoochee River

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Map showing the Chattahoochee River Basin in Georgia and other Georgia river basins

The upper Chattahoochee River at the Upper Chattahoochee River Campground north of Helen, White County, Georgia

Chattahoochee River at River Park on Willeo Road, Fulton County, Georgia

The Chattahoochee River runs from the Chattahoochee Spring in the mountains of northeast Georgia, southwestward by Atlanta and through its suburbs, then turns southward to form the southern half of the Georgia/Alabama state line. It then merges with the Flint River at Lake Seminole near Bainbridge to form the Florida panhandle's short Apalachicola River, and is the largest part of the ACF River Basin watershed. The name Chattahoochee is thought to come from a Creek word for "painted rock," possibly referring to the many colorful granite outcrops along the northeast-to-southwest segment of the river. Much of this segment of the river runs through the Brevard fault zone.

Several lakes, including Lake Sidney Lanier, Walter F. George Lake, West Point Lake, and others are controlled by the U.S. Army Corps of Engineers, providing hydroelectricity, flood control, drinking water, recreation, and navigation. Several smaller and older lakes and dams also provide these services on a much smaller and more localized scale, including Bull Sluice Lake and Morgan Falls Dam.

It serves as the border between several counties and cities, including:

Carroll and Coweta
Carroll and Fulton
Douglas and Fulton
Cobb and Fulton
Fulton and Gwinnett
Forsyth and Gwinnett
City of Roswell and City of Sandy Springs

The non-profit organization Upper Chattahoochee Riverkeeper is a watchdog group for the northern half of the river.

Controversy has come to the river because of the enormous growth of metro Atlanta, and the tremendous increase in water withdrawals from the river. Oysters in Apalachicola Bay depend on the brackish water mix and alternating freshwater and saltwater flows which the river and tides provide. Interbasin water transfers also occur, where water is withdrawn from the Chattahoochee, but then discharged as treated sewage into another river, such as Hall County's Oconee River. The U.S. Congress has been asked to intervene to put navigation of the lower Chattahoochee (south of Columbus, Georgia) by barges last on the priority list, as most people view this as a complete waste of water during droughts, and a tremendous aggravation to the fight between Georgia, Florida, and Alabama over rights to the river. The case is now in court, and may take years to resolve.

"Chattahoochee" is the name of a song by country music singer Alan Jackson about the river.

[edit] Flooding

The most recent major flood along the river occurred in September 2004, as a result of Hurricane Ivan. [1] At Vinings at the northwestern Atlanta city limit, it rose to 22.60 feet or 6.89 meters late on September 16, far above its flood stage of 14.0 feet or 4.3 meters. Numerous tributaries also swelled far over and beyond their banks. These were the highest levels seen since 1990, and the second highest ever since Buford Dam was built upstream. The National Weather Service in Peachtree City estimated that this was a nearly 100-year flood event. [2] At Helen, above the dam, the river rose to 6.8 feet or 2.07 meters, just above the flood stage of 6.0 feet or 1.83 meters.