1017.7.1 Maximum Running Slope and Segment Length.
Not more than 30 percent of the total length of a trail shall have a running slope steeper than 1:12 (8.33%). The running slope of any segment of a trail shall not be steeper than 1:8 (12%). Where the running slope of a segment of a trail is steeper than 1:20 (5%), the maximum length of the segment shall be in accordance with Table 1017.7.1, and a resting interval complying with 1017.8 shall be provided at the top and bottom of each segment.
| Table 1017.7.1 Maximum Running Slope and Segment Length | ||
| Running Slope of Trail Segment | Maximum Length of Segment | |
| Steeper than | But not Steeper than | |
| 1:20 (5%) | 1:12 (8.33%) | 200 feet (61 m) |
| 1:12 (8.33%) | 1:10 (10%) | 30 feet (9 m) |
| 1:10 (10%) | 1:8 (12%) | 10 feet (3050 mm) |
Advisory 1017.7.1 Maximum Running Slope and Segment Length. Gradual running slopes on trails are more useable by individuals with disabilities. Where the terrain results in steeper running slopes, resting intervals are required more frequently. Where running slopes are less severe, resting intervals are permitted to be further apart.
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