1. ALDOT Pavement Preservation Policy
Lance Taylor, P.E.
Assistant Region Engineer, Pre-Construction
East Central Region
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

2. What is Pavement Preservation?
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

3. Why do we need a policy on pavement preservation?
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

4. Because sometimes there are very different interpretations….
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

5. To make sure we are all in agreement….
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

6. Deciding Which Applies….
Project Scoping Team Review
Determine depth of cracking
Required overlay thickness
Presence of significant rutting and/or cracking
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

7. Preventive Maintenance
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

8. Preventive Maintenance
There must be sub-categories and they must be numbered……we’re engineers.
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

9. Preventive Maintenance 1
No Milling of Structural Layers
Preventive Maintenance 2
Limited Milling of Structural Layers
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

10. Preventive Maintenance 1
Requirements - Milling
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

11. Preventive Maintenance 1
Requirements - Overlay
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

12. Preventive Maintenance 1
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

13. Preventive Maintenance 1
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

14. Preventive Maintenance 1
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

15. Preventive Maintenance 2
Requirements - Milling
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

16. Preventive Maintenance 2
Requirements - Overlay
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

17. Preventive Maintenance 2
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

18. Minor Rehabilitation
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

19. Requirements - Milling
Minor Rehabilitation
Requirements - Milling
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

20. Requirements - Overlay
Minor Rehabilitation
Requirements - Overlay
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

21. Minor Rehabilitation
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

22. Scope Considerations
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

23. Safety PM 1 PM 2 Minor Rehab
Frictional Characteristics of existing and
proposed applications
PM 2
PM 1 and less than 5% of total cost
Minor Rehab
PM 1 and less than 15% of total cost
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

24. Super/Cross Slope PM 1 PM 2 Minor Rehab Not a required consideration
Provide correction where warranted in accordance
with GFO 5-26
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

25. ADA PM 1 PM 2 Minor Rehab Not a required consideration
Curb cuts and ramps
Minor Rehab
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

26. Pavement Width PM 1 PM 2 Minor Rehab Not a required consideration
28’ roadway width
Widening funded from alternative sources
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

27. Roadway Geometry PM 1 PM 2 Minor Rehab Not a required consideration
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

28. Bridge Rail PM 1 PM 2 Minor Rehab Not a required consideration
Interstate routes only
Minor Rehab
Retrofit rails on NHS routes unless technically infeasible
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

29. Guardrail End Treatments
PM 1
Not a required consideration
PM 2 and Minor Rehab
Interstate routes not meeting NCHRP 350
NHS routes not meeting NCHRP 230
Non-NHS routes not meeting NCHRP 230
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

30. Guardrail General PM 1 PM 2 Minor Rehab Not a required consideration
Repair damaged guardrail
Fix missing or unconnected bridge approach rails
Adjust, raise, or reset guardrail that is too low
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

31. Clear Zone PM 1 PM 2 Minor Rehab Not a required consideration
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015

32. Questions?
2015 Alabama Department of Transportation Pre-Construction Conference
Montgomery, Alabama
May 7,2015