Lably
Skip to content

Lake Lanier

Reservoir in Georgia, United States

  • 12 min read
  • 6 chapters

Related on Lably

Through Reservoir, Coast and Drought

It is patrolled by the Georgia Department of Natural Resources (GDNR), as well as local law enforcement. The states of Georgia, Alabama, and Florida all have rights to the water of the reservoir, as it feeds rivers going through those areas. The Corps of Engineers has responsibilities to regulate flow for flood control and water use. In addition, it has to ensure that water is available to fulfill such federal mandates as under the Endangered Species Act, to support downstream species. The rapid suburbanization of the Atlanta region, in particular, has greatly increased water consumption by private homeowners for lawns and gardens. During droughts of the 21st century, Lake Lanier reached record lows, and regional actions have been needed to reduce state water usage in the area.

Geography

The lake is in Hall, Forsyth, Dawson, Gwinnett, and Lumpkin counties, split about 60%, 30%, 5%, 4%, and 1%, respectively, filling the valley into numerous small arms and fingers. The former thalweg of the Chestatee and the Chattahoochee south of it form the county line between Hall and a corner of Gwinnett to the east, and Dawson and Forsyth counties to the west. The land that now sits at the bottom of Lake Lanier was, before the 1950s, forest and farmland. Before the lake was completely filled, construction crews felled the treetops, leaving tall stumps to remain, in some areas, not far beneath the lake's surface.

One of the main purposes of the lake is flood control of the Chattahoochee River downstream, mainly protecting metro Atlanta. Since the construction of Buford Dam, only three major flooding events have occurred on the downstream section. The most severe flooding event was in 2009, following a two-year drought; the most recent was in 2013.

Sign in to keep reading

5 more chapters are free with a Lably account.

More in Physical geography