The Dalles Pavement Preservation Program

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The DallesPavement Preservation Program
Presented by Bill Barrier Transportation
Manager City of The Dalles Public Works
Department
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Issues

• What is pavement preservation?
• What is preventive maintenance?
• What is corrective maintenance?
• When should these actions be taken?
• Are these activities effective?
• If so, then why doesnt everyone have a pavement
  preservation program?

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What is Pavement Preservation?
Pavement preservation is the sum of all
activities undertaken to provide and maintain
serviceable roadways, including preserving the
investment in the national highway system,
extending pavement life, enhancing pavement
performance, ensuring cost-effectiveness, and
reducing user delays.
- Consensus definition from AASHTO, Industry
Representatives, and FHWA
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Components of Pavement Preservation

• Includes all types of maintenance activities
  (i.e., routine, reactive, corrective, and
  preventive)
• Includes minor rehabilitation activities
• Does not include major rehabilitation or
  reconstruction

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Types of Maintenance Activities
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Preventive Maintenance
The planned strategy of cost effective treatments
to an existing roadway system and its
appurtenances that preserves the system, retards
future deterioration, and maintains or improves
the functional condition of the system (without
increasing structural capacity).
- AASHTOs Standing Committee on Highways
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Preventive Maintenance

• Planned
• Performed on good pavements
• Contributes to long-term performance
• Examples Fog Seal, Chip Seal, Cape Seal, Thin
  HMA Overlay, Crack Seal

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East 10th and Dry Hollow
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Corrective Maintenance

• Reactive
• Performed on failing pavements
• Does not contribute to long-term performance
• Examples Patching, Pothole Repair

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East 14th Street
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West 6th Street
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Pavement Lifecycle
Pavement Condition
Time or Traffic
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Pavement Condition
100
Critical PCI 65 - 70
Pavement Condition Index
0
Time or Traffic
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Corrective Repairs
Pavement Condition
Time or Traffic
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Curve Without Maintenance
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Curve With Maintenance
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Numerical Rating System
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Pavement Condition Rating
2002 Rating of Total 2013 Rating of Total Change
Excellent/Very Good 119,326 35 24,510 7 -28
Good 135,142 40 27,839 8 -32
Fair 54,087 16 123,804 36 20
Poor 23,705 7 158,786 46 39
Very Poor/Failed 8,035 2 9,291 3 0
Total 340,295 100 344,230 100
64.4 miles 65.2 miles
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3rd Street Core Area Inlay
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Preventive Maintenance
Pavement Condition
Time or Traffic
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Triggers
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East 10th and Dry Hollow
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East 16th Place Candidate
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Rehabilitation
Rehabilitation
Pavement Condition
Time or Traffic
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Third and Liberty Candidate
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East 15th and G Street
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E.15th Street Rehabilitation
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Reconstruction
Reconstruction
Pavement Condition
Time or Traffic
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Third and Liberty Options?
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West 11th Trevitt to Union
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Cost Comparison of Options

• Preventive maintenance 10,270
• Rehabilitation 45,570
• Reconstruction 574,000

Costs obtained from City of Bedford (Texas) on a
per-lane mile basis
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Public Perceptions

• Public averse to steering maintenance dollars
  toward pavements in good condition
• Agencies more likely to receive complaints about
  specific defects than overall network
• Challenge of balancing limited maintenance
  resources between preventive maintenance and
  rehab/recon
• Need to educate the public about new philosophy

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Summary

• Backlog of deferred maintenance has resulted in
  more streets needing rehab/recon.
• Preventive Maintenance is more cost effective in
  the long run than relying on rehab/recon.
• There is a need to fund both Preventive
  Maintenance to maximize street life and to
  rehabilitate failed streets.

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Questions?

• Thank you!