Complex sentence: The United States Congress authorized the Garrsion Dam and Reservior Project in 1944, and construction on the $294 million dam project began in 1947 and closure of the embankment occurred in April 1953.
Split into simpler sentences: The United States Congress authorized the Garrsion Dam and Reservior Project in 1944. Construction on the $294 million dam project began in 1947 and closure of the embankment occurred in April 1953.