1. E X P E R I E N C E Y O U R A M E R I C A Safety and Aesthetics Missouri Traffic and Safety Conference May 2009 National Park Service U.S. Department of the Interior Denver Service Center, Transportation Division Treff Alexander Landscape Architect

2. “…to conserve the scenery and the natural and historic objects and wild life therein and to provide for the enjoyment of the same in such manner as will leave them unimpaired for the enjoyment of future generations.” -Organic Act, 1916

3. Going-to-the-Sun Road Glacier National Park, MT

4. Natchez Trace Parkway, TN

5. Going-to-the-Sun Road Glacier National Park, MT

6. Newfound Gap Road Great Smoky Mountains NP, TN/NC

7. Slope sculpting, Foothills Parkway, TN

8. Hydroseeding and seedling planting, Foothills Parkway, TN

9. Fill slope construction, Foothills Parkway, TN

10. Aggregate / topsoil mix and straw matting, hydroseeded, Foothills Parkway, TN

11. Going-to-the-Sun Road Glacier National Park, Montana

12. Historic headwall, Great Smoky Mountains NP, TN

14. Steel-backed timber guardrail, Great Smoky Mountains NP, TN/NC

15. Historic retaining wall and guardwall, Great Smoky Mountains NP, TN/NC

16. Damaged guardwall, Great Smoky Mountains NP, TN/NC

17. Guardwall in good condition, Glacier National Park, Montana

18. Baltimore – Washington Parkway, MD Parson Branch Rd, Great Smoky Mountains NP, TN/NC

19. Inspecting road construction and storm damage, Glacier National Park, Montana

20. Guardwall assessment, Glacier National Park, Montana

21. E X P E R I E N C E Y O U R A M E R I C A Denver Service Center / Transportation Division National Park Service U.S. Department of the Interior Treff Alexander Landscape Architect treff_alexander@nps.gov 303-969-2172