That answer is wrong. Hoover Dam is 1,244 ft long. The Grand Coulee Dam in Washington state, however, is significantly longer at 5,223 ft. It is America's longest dam.
wolf creek dam
Hirakud dam
tarbela dam
The worlds longest dam is Hirakud Dam in Orissa, India.
a dam is the longest in Asia
Hirakud Dam in Orrisa
Three Gorges Dam
cauvery
I think its BANAS river is the longest in Rajasthan.
Grand Lake O' the Cherokees dam in Oklahoma is only 1568 mt long, Hirakud Dam in Orissa, India is the longest in the world. It is 26 km or 16 miles long. The Afsluitdijk in the Netherlands, build between 1927 and 1932, is 30 km long (32.5 km if you take the parts on land into account). It divides the Zuiderzee (now called IJsselmeer) and the Waddenzee so it is really a dam not a dijk.
Shawn micheals
The Congo River.