Driveways to residential garages of more than 30 feet in length shall extend for a minimum distance of 20 feet from the garage on a maximum grade of 5%. Driveways less than 30 feet in length shall have a maximum grade of 8% for a minimum distance of 20 feet from the garage. No portion of a driveway shall exceed a grade of 20%.
Driveways shall be designed so that the algebraic difference in grades will not cause a car to drag or hang up.