ST. LOUIS, MO - JUNE 25:  The Gateway Arch is seen as the flooding Mississippi River runs in front of it June 25, 2008 in St. Louis, Missouri. Forecasters say the Mississippi River appears to have crested in the northern parts of Missouri and would by June 25 in southern parts of the state and in Illinois. Getty Images logo Getty Images 17 months ago

ST. LOUIS, MO - JUNE 25: The Gateway Arch is seen as the flooding Mississippi River runs in front of it June 25, 2008 in St. Louis, Missouri. Forecasters say the Mississippi River appears to have crested in the northern parts of Missouri and would by June 25 in southern parts of the state and in Illinois.