Lake Lanier
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| Lake Lanier | |
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| Location | Georgia |
| Coordinates | |
| Lake type | reservoir, from 1956 |
| Primary inflows | Chattahoochee River, Chestatee River |
| Primary outflows | Chattahoochee River |
| Catchment area | 1,040 sq mi (2,700 km²) |
| Basin countries | United States |
| Surface area | 37,000 acres (150 km²) |
| Max. depth | 160 ft (49 m) |
| Water volume | 1,049,400 acre·ft (1.2944 km³) |
| Surface elevation | 1,071 ft (326 m) |
Lake Lanier (officially Lake Sidney Lanier) is a reservoir in the northern portion of the U.S. state of Georgia. It was created by the completion of Buford Dam on the Chattahoochee River in 1956, and is also fed by the waters of the Chestatee River. The lake encompasses 38,000 acres (150 km²) of water, and 692 miles (1,114 km) of shoreline at normal level, a "full summer pool" of 1,071 feet (326 m) AMSL. It was named for poet Sidney Lanier, and was built and is operated by the U.S. Army Corps of Engineers. It is patrolled by the Georgia Department of Natural Resources (GDNR).
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[edit] 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 tiny corner of Gwinnett to the east, and Dawson and Forsyth to the west.
One of the main purposes of the lake is flood control downstream of the lake, mainly protecting metro Atlanta. There have only been two major flooding events on that section since then, the most recent in 2004, after the remnants of two major hurricanes (Hurricane Frances and Hurricane Ivan) dropped huge amounts of rainfall across the area.
[edit] Reservoir
The lake's original and authorized purposes were to provide hydroelectricity and flood control. Since Lake Lanier's construction, metro Atlanta has been taking water from the reservoir to use for municipal drinking water, which was authorized by Congress as an incidental use secondary to hydroelectricity.[citation needed]
Since the 90's, the Corps of Engineers, Florida, Georgia, and Alabama have all been fighting for use of the water held in Lake Lanier. Federal law mandates that when a river flows between two or more states, each state has a right to an equal share of the water. Additionally, other laws such as the Endangered Species Act require that water be available for threatened or endangered species that live in or around Chattahoochee River and Apalachicola Bay.
[edit] Drought 2007
In June 2006 the USACE revealed that the new lake gauge at the dam, replaced in December 2005, was not properly calibrated, yielding a lake level reading nearly two feet (over half a meter) higher than the actual level. Because of this, nearly twenty-two billion U.S gallons (over eighty-two billion liters) of excess water was released over and above the already planned excess releases to support both the successful spawning of gulf sturgeon in the Apalachicola River and to protect several species of mussels in Apalachicola Bay from excessive saltwater intrusion.
Georgia Governor Sonny Perdue said that the Corps had created a "manmade drought", because most of the state is already experiencing dry conditions. This came at a time when outdoor water-use restrictions were already being put in place by local governments, because of enormous water use on the many lawns which have replaced the forests in newer suburban areas. Mainly because of this incident at the lake, the state then declared a drought and enacted a ban on outdoor water use from 10AM to 4PM, in addition to the permanent weekly odd/even address system. Other local counties have imposed further restrictions or even total bans, based on each water system's conditions. Outdoor watering has since been banned completely as the state has fallen under the worst drought in its recorded history.
On October 16, 2007, Governor Perdue gave the USACE until the evening of October 17th to come up with a plan for the continued release of water for Florida wildlife. Senator Johnny Isakson stood before the Georgia General Assembly saying, "The health, safety and welfare of people are threatened. They are threatened by an act this Congress passed that had no intention to threaten them." He eventually withdrew his threat to sue the Corps of Engineers, but the Lake Lanier Association indicated that it will attempt a private legal action. Governor Perdue's attempts to reach an agreement with Florida over water releases fell through, leaving a final decision on releases from the lake in the hands of the U.S. Fish and Wildlife Service.
On November 22, 2007 the water level was at 1,052.34 feet (320.75 m) [1], setting a new record low (see daily water levels, below: External links). The previous low was 1,052.7 ft (320.9 m), set in December 1981 [2]. The water level as of November 28, 2007 had dropped below the newly set record to 1,051.98 feet (320.64 m) and still decreasing at 0.05 ft (15 mm) a day[3]. One month later, the water level stabilized around a final low of 1,050.79 ft (320.28 m), recorded December 26, 2007 at Buford Dam, with the level rising or falling daily by about 0.03 ft (9.1 mm), although a foot lower than November levels. The day after Christmas, the water level began rising from week to week.[1]
Finally, on February 18, 2008, the water level of Lake Lanier rose back, above the record-low levels set in November, rising to 1,052.80 ft (320.89 m),[1] even higher than the December 1981 level of 1,052.7 ft (320.9 m), effectively ending the record-low phase of the drought crisis.
The record low lake level had revealed parts of the lake bottom not seen since the 1950s, when approximately 700 families were moved from the area to create the lake. An abandoned stretch of Georgia Highway 53 ran along one edge of new shoreline, and concrete foundations from homes and part of what was once the Gainesville's Looper Speedway were uncovered. More recent additions to the lake including discarded trash, boat batteries and even sunken boats were discovered, and local efforts to clean up the lake bottom were organized. Several automobiles, some stolen, and also discarded firearms were also recovered by law enforcement officials.[4]
[edit] Recreation
The lake is extremely popular with boaters, houseboats, jetskiers and others, particularly around the summer holidays. Over 7.5 million people per year visit the lake, including its marinas and the Lake Lanier Islands waterpark. The rowing and canoeing events during the 1996 Summer Olympics were held at the lake.
Two resort hotels sit on the lake: Emerald Pointe and Pine Isle. Both were recently sold by CNL Hotels & Resorts, a hotel investment firm in Florida, to Georgia businessman Virgil Williams. Both assets sit on a ground lease from the Lake Lanier Islands Development Authority which in turn leases the land from the U.S. Army Corp of Engineers.
Many marinas are scattered all around the lake, with AquaLand Marina being one of the largest freshwater marinas in the world. AquaLand is located near the town of Flowery Branch.
Lake Lanier was also the site of the 1997 Bilderberg conference
Every year from mid-November through December, Lake Lanier Islands is decorated with over 6 miles (9.7 km) of holiday lights, one of the world's largest light shows. Magical Nights of Lights is an animated drive-through display that ends with a Holiday village, carnival rides, bonfire, Santa Shop, live nativity, etc.
[edit] Lake water levels
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At the end of 2007, the water level of Lake Lanier became notable, on a daily basis, for setting record low levels, not seen in over 25 years. By early November, the water level was dropping a fifth of a foot (.06 m) per day (see table at right), with the largest drop on November 9 of 0.26 ft (0.08 m) to 1054.08 ft (321.4 m).[1]
The dropping water level slowed to 0.05 ft (0.02 m) on November 17, 2007, after local rains and the reduced water flow at Buford Dam. However, water levels continued to decline almost daily during December 2007 (see table at right; December record low levels in bold-face font).
Further rains during November and December stabilized the water level at a low of 1,050.79 ft (320.3 m) on December 26, 2007, with the water level fluctuating up/down by about 0.03 ft (0.009 m) daily (see table at right). On December 27, the water level began rising above the record low level, but fluctuating every few days, as affected by further rain and snow during December and January 2008. By the end of December 2007, alone, the water level had risen over a half-foot (.3 m) to 1,051.32 ft (320.4 m), rising over 3 times faster than it had recently dropped, and reversing more than 18 days of losses within just 5 days (see table).
Finally, on February 18, 2008, the water level of Lake Lanier had risen back, above the record-low levels set in November, rising to 1,052.80 ft (320.89 m),[1] even higher than the December 1981 level of 1,052.7 ft (320.9 m), effectively reversing and ending the record-low phase of the drought crisis.
Multiple rain storms further to the south, along the Chattahoochee River to Apalachicola Bay, brought increased fresh water to the Florida wildlife in November and December 2007, despite the reduced water flow from Lake Lanier at Buford Dam. Rainfall along the Chattahoochee River was often greater than at Lake Lanier, spanning the much longer length of the river.
[edit] Notes
- ^ a b c d e "Midnight Pools at Buford" (Lake Lanier daily water levels), December 2007, USACE, webpage: ACF-prob1.
[edit] External links
- "Growth, growth everywhere but not a drop to drink" News article about the 2007-08 drought
- Lake Lanier daily water levels (measured and posted daily by USACE at Buford Dam): http://water.sam.usace.army.mil/gage/acf/prob1.txt
- Lake Lanier Protection Group
- Lake Lanier News
- Lake Lanier Information
- Lake Lanier - US Corps of Engineers
- Lake Lanier Statistics & Historical Data
| Preceded by Lake of Banyoles |
Olympic Regatta Venue 1996 |
Succeeded by Sydney International Regatta Centre |
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