19      US HIGHWAY 60

            (between Miami and Superior, AZ)

            There is very little flat road between Miami and Superior.  There are 6 and 7% descents for traffic in both directions.  There is a tunnel with 14' 0" vertical clearance about 2 miles east of Superior.  About milepost 236 there is a sign for eastbound traffic—"6% grade next 7 miles."  This descent toward Miami is not steady 6%.  There are several places where the grade eases and there is a 1 mile uphill stretch.  There is still enough 6% descent to require caution on this road.  There are 45 mph curves and heavy traffic.  The town of Miami is at the bottom of the hill.

            The westbound descent from milepost 236 starts with about 2 miles of 3-4% grade  and then 2 miles of 6% grade.  At this point there is a ½ mile 6% climb before beginning a descent of 1 mile of 5% followed by 3 miles of 7% grade.  There are 50 mph curves all the way down and a runaway truck ramp at milepost 228.  It exits to the right and goes uphill.  About 1¼ miles of 7% grade remain after the escape ramp.  This brings you to the edge of Superior where the grade goes to 4% right through town.

            NOTE:  If you are traveling eastbound there is a sign near milepost 231½ that says—"6% next 12 miles."  Evidently this includes uphill grade as well as down because after going downhill for about ½ mile the grade is uphill for 4½ miles and then downhill for 7 miles into Miami.