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Trail Design & Construction Challenges in Cuyahoga Valley National Park

Trail Design & Construction Challenges in Cuyahoga Valley National Park. Robert W. Bobel, P.E. Park Engineer Cuyahoga Valley National Park Greater Cleveland Trails and Greenways Conference Given June 7, 2010 Middleburg Heights, OH.

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Trail Design & Construction Challenges in Cuyahoga Valley National Park

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  1. Trail Design & Construction Challenges in Cuyahoga Valley National Park Robert W. Bobel, P.E. Park Engineer Cuyahoga Valley National Park Greater Cleveland Trails and Greenways Conference Given June 7, 2010 Middleburg Heights, OH

  2. Trail Users + Trail Location = Design Standards Design Standards → Width, grades, surfaceSurface = Costs (initial + maintenance)

  3. Trail Users • Surface • Width • Grades • Trailheads • Trail amenities

  4. Trail Location • Crossings • Along water courses • Environmental • Cultural

  5. River and stream erosion

  6. Flooding

  7. Aggregate Surfaces • Crushed Rolled Limestone • Gravel & Sand Mix • Natural earthen

  8. Paved Hardened Surface • Asphalt

  9. Paved Hardened Surface • Concrete

  10. Paved Hardened Surface • Specialty surfaces

  11. Other Hardened Surface • Boardwalks

  12. Trail Surfaces Limestone – Asphalt – Concrete(initial costs) $ → $$ → $$$ (maintenance costs) $$$ → $$ → $

  13. Limestone - Advantages • Lower Initial Cost • Softer Appearance • More Giving Surface • More absorption • Slower Speeds

  14. Limestone - Disadvantages • Requires Regular Maintenance • Requires time to set up • Limited to flatter trails • Spring Tundra • Summer Dusting

  15. Bank Erosion • Gabion walls • Gabion protected slopes

  16. Bank Erosion – lower flows • Live staking • Brush matting • Root wads

  17. Bank Erosion – typical details • Stone rip rap • Brush layering • Soil Wraps

  18. Bank Erosion – higher flows • Stone rip rap • Brush layering • Soil Wraps

  19. Bank Erosion – innovative techniques • Spurs & vanes • Buried windrows • Engineered log jams

  20. Flooding • Clean-up • Repair • Harden

  21. Contract out or construct in-house?

  22. Manage Expectations

  23. Trail Challenges - Summary

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