O’FALLON – The Illinois Department of Transportation today announced that westbound Interstate 64 will be reduced to one lane between Illinois 159 and Illinois 157 in St. Clair County for pavement work.The lane closures will occur during the following weekends, weather permitting:April 10-13Beginning at 8 p.m. Friday, April 10, westbound traffic will be reduced to one lane. All lanes are expected to reopen by 6 a.m. Monday, April 13.April 17-20B…