Lake Size: 10500 acres
Deepest Depth: 6 ft (2 m) Average depth
Latitude: 42.874167
Longitude: -88.958056
Lake Level Above Sea Level: 774 ft (236 m)
Counties: Jefferson County

Information: In the 1970s, Lake Koshkonong was the primary site considered for a billion dollar nuclear power station. Wisconsin Electric Power Co., Wisconsin Power and Light Co., Madison Gas and Electric Co and Wisconsin Public Service Corp jointly proposed the project. In 1974, it was estimated that the utilities would lose $40 million if the two unit, 900 MW each, facility was not approved. At that time, the timetable had already slipped to a 1983/1984 commissioning. The plan met with heavy resistance from environmental groups and was eventually killed in 1977 by concerns regarding the Lake's shallow depth during drought conditions. Attempts were made to salvage the $40 million dollar investment by moving facility to Haven, Wisconsin, near Sheboygan, Wisconsin.