Issues
As a shallow lake with a fairly high watershed-to-basin ratio, Lake Shetek can be strongly affected by environmental issues. Maintaining the water level has been a local concern for decades. The lake was dammed in the 1920s, then raised another 18 inches (46 cm) in the 1930s. Additional improvements were made to the dam in 1966 and 1995.
Siltation from human activities has been slowly filling in the lake. In 1973 Shetek's deepest point was documented at 12 feet (3.7 m) whereas today it is only 10 feet (3.0 m). Surface runoff from farms and lawns threatens to carry in excessive nutrients that can cause algal blooms.
Moreover the shallow lake freezes solid every seven years on average. This leads to significant winter fishkill, and since rough fish like carp rebound faster than desirable game fish, it has been a struggle to maintain the sport fishery.
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