A grade of 6% is considered moderately steep for commercial vehicle traffic, and grades of 10-12% are very steep. A 10% grade has 10 feet of rise for every 100 feet of horizontal distance.
A 30° incline is equivalent to a grade of about 57.7%. It has almost 58 feet of rise for every 100 feet of horizontal "run."
A 30° incline is equivalent to a grade of about 57.7%. It has almost 58 feet of rise for every 100 feet of horizontal "run."