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Home My WebLink AboutAddenda - RFP - P982 BOBCAT RIDGE TRAIL DESIGN AND CONSTRUCTON (17) 2309.18,2.31c, Ex. 01 Page 1 of 1 FSH 2309.18 - TRAILS MANAGEMENT HANDBOOK WO AMENDMENT 2309.18-91-2 EFFECTIVE 11/8/91 2.31c - Exhibit 01 Mountain Bike Trail Guide ￹ EasiestMore Difficult Most Difficult1/￻ ￹ ￻ ￹ Grade ￻ ￹ Max. Pitch10%30%+30%￻ ￹ ￻ ￹ Max. Sustained5%10%15%￻ ￹ Pitch￻ ￹ ￻ ￹ Length100'300'500'￻ ￹ ￻ ￹ Turning Radius6'3'2'￻ ￹ ￻ ￹ Length of Trip￻ ￹ Day10-20 mi20-40 mi40-50 mi￻ ￹ ￻ ￹ One-half Day 5-10 mi15-20 mi20-25 mi￻ ￹ ￻ ￹ ￻ ￹ Clearing2/￻ ￹ Width48"+36"-48"36"￻ ￹ ￻ ￹ Height8'8'Max. 8'￻ ￹ ￻ ￹ Tread3/￻ ￹ Width24"+12"-24"12"￻ ￹ ￻ ￹ SurfaceRelativelySections ofVaried--Some￻ ￹ SmoothRelativelyPortage￻ ￹ Rough SurfaceRequired￻ 1/ Upper limit of grade and pitch length depends on soil type, amount of rock, vegetation type, and other conditions affecting stability of the trail surface. 2/ Curve alignment to avoid cutting large trees. 3/ Increase tread width 6 inches on switchbacks or where side slopes exceed 60 percent.