Why is snow pushed into my driveway?

For public safety and optimal drainage, plows remove snow from curb to curb for maximum roadway clearance. Plows cannot lift plow blades as they pass driveways. Whenever possible, it is best to shovel and pile snow to the right of the driveway (as you face the street) to reduce the potential of having it redeposited at the driveway opening when the plow passes.