KOMU.com Exclusive: More Details on the Taum Sauk Reservoir Breach
Johnson Shut-Ins State Park, which was devastated by the breach's aftermath, has, "closed for the season so that re-development can begin," according to the state park's recovery update website.
The Taum Sauk facility consists of an upper and lower reservoir. Before the December breach, the Taum Sauk upper reservoir held 1.5 billion gallons of water. It was 92 feet deep and sprawled for 55 acres, or roughly 30 football fields.
When the dam breached, approximately 1.3 billion gallons of water poured into Johnson Shut-Ins State Park and surrounding areas. The water drained in 30 minutes. The lower reservoir, which is located 800 feet below the higher one, was not damaged.
The facility was originally built for $50 million in the 1960's. It was the largest pumped storage plant in North America when it came online in 1963.