Lay Out Turn Geometry
2 hoursStake the switchback apex, entry, and exit with adequate radius for intended users.
Field context
This workflow is part of 1 niche field
Learn switchback construction from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
Stake the switchback apex, entry, and exit with adequate radius for intended users.
Cut and fill to create a level or slightly out-sloped platform at the apex.
Install rock cribbing or timber wall to hold the uphill edge of the turn.
Connect entry and exit grades smoothly with grade reversals above and below the turn.
Discourage shortcutting with logs, rocks, or vegetation restoration on inside line.
Place large rocks or hardened surface where users naturally cut the corner.
Ensure users can see oncoming traffic before entering the turn.
Helmets and clear communication when placing heavy rocks above workers.