Lake Oahe "a memorandum and an executive order asking USACE to expedite its consideration of the company’s application for an easement to start construction." The USACE subsequently "withdrew its call for the environmental study." On 7 February 2017, the USACE approved an easement through Lake Oahe. On 9 February 2017, the Cheyenne River Sioux filed the first legal challenge to the easement, citing an 1851 treaty and interference with the religious practices of the tribe. Lake Oahe Lake Oahe (oh-WAH'-hee) is a large reservoir behind Oahe Dam on the Missouri River; it begins in central South Dakota and continues north into North
Grishk Dam operation in their attempt to blow up the dam. Grishk Dam The Grishk Dam is a dam and power plant on the Helmand River, located in Helmand Province, Afghanistan. It was built by the United States in 1945 for the Helmand Valley Authority for hydroelectric power. The dam is an example of one of the 20th century projects to modernize Afghanistan. A 2003 technical journal noted that the Grishk power plant was commissioned on an irrigation canal in 1945, and had two damaged and obsolete 1.2 megawatt units which would cost US$3 million to repair. In 2005, a group of