The East River captures the history of New York's premier waterway. The river, a source of life for Native Americans, spawned communities from Brooklyn to Harlem. Its shipyards and docks projected American enterprise around the world. The waterfront, an industrial and commercial dynamo, forged a continent. The dreams of immigrants who arrived and lived on its banks created this nation. The river's strong currents guarded prisons and hospital quarantines while keeping secret legends of gold on its bottom. The sinews of a great city are knitted by more than a score of its tunnels and bridges....