§ 82.19.050  Development Standards for Trails.
   The following standards shall be used to evaluate proposed trails:
 
Table 82-23
Urban Standards (Maximum Accessibility)
Item
Bicycle+ Pedestrian (1)
Bicycle- only (1)
Hiking- only
Equestrian- only (4)
Minimum width (one way)
10 ft.
5 ft.
5 ft.
8 ft.
Minimum width (two way)
12 ft.
8 - 10 ft.
8 - 10 ft.
10 ft.
Surface
Hardened, e.g. asphalt(2)
Hardened, e.g. asphalt
Hardened
Hard-packed, No paving
Shoulder
2 ft. minimum
2 ft. minimum
2 ft. minimum
2 ft. minimum
Vertical Clearance
12 ft.
10 ft.
10 ft.
12 ft.
Cross Slope
2 percent maximum
2 percent maximum
2 percent maximum
2 percent maximum
Maximum Grade
5 percent
5 percent
5 percent
Maximum limit is erosion control
 
 
Table 82-24
Low Use and Natural Area Standards
Item
Bicycle+ Pedestrian (1)
Bicycle- only (1)
Hiking- only
Equestrian- only (4)
Minimum width (one way)
6 - 8 ft.
2 ft.
2 ft.
6 ft.
Minimum width (two way)
8 - 10 ft.
2 ft.
4 ft.
8 ft.
Surface
Firm all weather and unobstructed
Minimize erosion
Minimize erosion
Minimize erosion
Shoulder
2 ft. minimum
2 ft. minimum
2 ft. minimum
2 ft. minimum
Vertical Clearance
10 ft.
8 ft.
8 ft.
12 ft.
Cross Slope
3 percent maximum
3 percent maximum
3 percent maximum
3 percent maximum
Maximum Grade
5 percent; rest and turning areas every 200 ft. minimum
Maximum limit is erosion control
Maximum limit is erosion control
Maximum limit is erosion control
Notes:
(1)   Standards meet Caltrans Class I Bikeway standards.
(2)   Where equestrian uses occur, an appropriate trail material (e.g., decomposed granite) shall be provided on the equestrian portion of the trail only; the remainder of the trail shall use materials appropriate to its intended use.
(3)   Multiple use trails with both bicyclists and equestrians shall be no narrower than six feet.  A combined use trail with hiking and bicycling only should be no narrower than four feet.
(4)   A maximum of 20 percent vertical grade or as needed for erosion control, whichever is less. This can be exceeded for short distances (no more than 200 feet).
 
Figure 82-1 Trails - Low Use and Natural Areas/Urban #1
 
Figure 82-2 Trails - Low Use and Natural Areas
 
Figure 82-3 Trails - Urban
 
Figure 82-4 Trails - Low Use and Natural Areas/Urban #2
 
(Ord. 4011, passed - -2007)