Saturday 's pounding rain was not related to Hurricane Ike . Records kept since 1871 say Saturday 's rain marks worst in more than century . Comment: Commissioner : Chicago River flowed `` down the 5000 block of North Monticello '' Authorities say 90 billion gallons of water fell on the city 's water district .
Records kept since 1871 say Saturday 's rain marks worst in more than century . Comment: Commissioner : Chicago River flowed `` down the 5000 block of North Monticello '' Authorities say 90 billion gallons of water fell on the city 's water district .