Survey Terrain and Constraints
4 hoursWalk the proposed corridor, note slopes, wetlands, and sensitive habitat before marking a centerline.
Beginner2-4 weeks
Trail Route Planning Guide
Learn trail route planning from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
trail volunteersland managershiking club leaders
Workflow
Calculate Average Grade
2 hoursMeasure elevation gain over horizontal distance to keep grades within sustainable limits for the target user group.
Draft Route Map
3 hoursPlot the centerline on a topographic map with switchback locations and drainage crossings marked.
Stake Centerline in Field
1 dayFlag the approved route with survey tape and document decision points for the build crew.
Tools Used
Checklist
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Planning
Prep
Baseline
Quality
Tracking
Reference Materials
Sustainable Trail DesignStandard
Follow IMBA and USFS guidelines for out-sloped tread and grade reversals.
Trail GradeFormula
Grade (%) = (rise ÷ run) × 100; sustainable hiking trails typically stay under 10% average.
Grade GuidelinesTable
Recommended maximum grades by trail type.
| Trail Type | Max Grade | Notes |
|---|---|---|
| Hiking | 10–15% | Short pitches OK |
| Mountain bike | 12–20% | Flow dependent |
| Accessible | 5% | Firm stable surface |
Follow the Fall Line
Avoid straight fall-line routes — they channel water and erode quickly.
Verify in Field
Map grades rarely match ground truth; always confirm with clinometer.
Permits Required
Check land agency requirements before clearing vegetation.
Safety Notes
- Wear hi-vis clothing when working near roads or shared corridors.
- Carry first aid and communicate daily work plans to land managers.