– Alberta Driveway Maintenance has been grading gravel driveways in the MD of Foothills since 2002. – The smaller, more maneuverable grader spreader grades around turn arounds and smaller areas where a large road grader could not fit. – Make the most of limited amounts of gravel and put it back on top. – Maintain a crown on the road for proper drainage. – Average driveway grading is only $150.