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2008 NACE Western Regional Symposium – Pavement Preservation

PROMOTING PAVEMENT PRESERVATION IN SONOMA COUNTY. October 3, 2008 Laughlin Nevada Stephen B. Urbanek, P.E. County of Sonoma Department of Transportation and Public Works. 2008 NACE Western Regional Symposium – Pavement Preservation. Challenges. System Size and Condition Funding

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2008 NACE Western Regional Symposium – Pavement Preservation

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  1. PROMOTING PAVEMENT PRESERVATION IN SONOMA COUNTY October 3, 2008 Laughlin Nevada Stephen B. Urbanek, P.E. County of Sonoma Department of Transportation and Public Works 2008 NACE Western Regional Symposium – Pavement Preservation

  2. Challenges • System Size and Condition • Funding • Approach to Pavement Management

  3. Sonoma County • Population • Service Area • Lane Miles • Arterials • Collectors • Locals

  4. 1,371 Centerline Miles to Maintain

  5. PCI by Class

  6. Challenges • System Size and Condition • Funding • Approach to Pavement Management

  7. How we compare…

  8. PCI Changes with Expenditure ($ millions) for All Roads 75 70 $120 65 $20 60 PCI $15 55 $10 50 $5 45 40 2007 2008 2009 2010 2011 2012 Annual Funding Scenarios for Road Network

  9. Challenges System Size and Condition Funding Approach to Pavement Management

  10. The Old Way… • Focus on Rehabilitation and Reconstruction • Reactive and political • Results showed limited improvement to the system pavement condition

  11. In Ten Years… • By the year 2017 the County’s roads would require almost total reconstruction

  12. Pavement Preservation Strategy • Change “Worst First” Past Practice • Perform Life Cycle Analysis • Promote Preservation First

  13. Maintenance Strategy • Develop technical expertise • Encourage innovation • Understand Systems Approach

  14. The New Way…

  15. The New Way…

  16. Pavement Preservation Preventive Maintenance • Prolongs the life of the road • Lowers the cost of maintaining the road

  17. The New Way…

  18. Field Review of Treatment Options

  19. The New Way…

  20. Treatment Options…Our Tool Box • Crack Sealing • Fog Seals • Rejuvenating Seals • Slurry Seals • Micro Seals • Chip Seals • Asphalt Rubber Chip Seals • Thin Overlays

  21. The New Way…

  22. Remaining service life • Remaining service life in 10 years if all county roads if no preventive maintenance is performed

  23. The New Way…

  24. 2008 Pavement Preservation Program

  25. Comparison – Old and New Strategies Old = $9,000,000 New = $7,600,000 250 Mile Years $36,000/Mile Year 584 Mile Years $13,000/Mile Year

  26. What’s Next? Define a prioritized portion of the road network Develop funding options for the remainder of the road network Thank you!

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