From New England today-
Today, the Quabbin Reservoir is 39 square miles of gorgeous lake landscape. It holds 412 billion gallons of water, picking up another 1.6 billion for every inch of rainfall. It continues to serve as an irreplaceable water supply for eastern Massachusetts residents. Though it is no longer the largest manmade source of water in the world, it is still among the largest in the region. The last of the towns residents moved out in late 1938
What a shame, but maybe there was no other option...?
Connecticut's Candlewood Lake submerged a town...So did Barkhamstad Reservoir.