Motorists traveling along US 20 in northeast La Porte County should take notice of a reduction in the speed limit. On Friday afternoon, the Indiana Department of Transportation (INDOT) officially reduced the speed limit of US 20 from 55 MPH to 45 MPH in the area of Rolling Prairie.The new 45 MPH zone is located between CR 400 East and CR 450 East, for eastbound and westbound US 20 traffic. Motorists should adjust their driving behaviors accordingly and adhere to the new 45 MPH signage.