When did the Gavins Point Dam get damaged?
Gavins Point Dam Gavins Point Dam is a hydroelectric dam on the Missouri River in the U.S. states of Nebraska and South Dakota. Built from 1952 to 1957, it impounds Lewis and Clark Lake. The dam is on the Nebraska-South Dakota border, west of Yankton, South Dakota. During the 2011 Missouri River Flood the dam was damaged by debris and a significant portion of rocks were dislodged from its upstream side. The U.S. Army Corps of Engineers soon began repairs to the dam and its spillway gates. Pressure sensors were also installed in concrete portion of the dam.
Hantangang Dam The Hantangang Dam is a gravity dam currently under construction on the Hantan River in Yeoncheon County, Gyeonggi Province, South Korea. Construction on the dam began in 2007 and it is expected to be completed in mid-2015. The primary purpose of the dam will be flood control and it was proposed in 1998 after a series of deadly floods in the late 1990s. These floods killed 128 people, displaced over 31,000 and caused about US$900 million in property damage. Initially designed as a multi-purpose project, the design was changed solely to flood control in 2006 due to the concerns of residents upstream. It is being implemented by Korea Water Resources Corporation (K-water).