As of Oct 2013, the Google Maps satellite view (probably a year or more old) shows the construction site, with a small temporary dam a bit upstream of the point where the permanent dam is being built.
dam | Hoover Dam | Aswan Dam | Grand Coulee Dam | Kinzua Dam | Bonneville Dam | Grand Rapids Dam | embankment dam | Beaver Dam, Arizona | Merowe Dam | Beaver Dam, Wisconsin | Three Gorges Dam | Mangla Dam | Beaver Dam | Aswan Low Dam | Akosombo Dam | Shasta Dam | Itaipu Dam | Fort Peck Dam | Fontana Dam | Dam Square | Chickamauga Dam | Yacyretá Dam | Wilson Dam | Tiga Dam | Temenggor Dam | Tarbela Dam | Tai Dam | Tabqa Dam | Safe Harbor Dam |