Transcript Module 2 - City of The Dalles

The Dalles
Pavement Preservation Program
Presented by
Bill Barrier
Transportation Manager
City of The Dalles
Public Works Department
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 doesn’t everyone have a
pavement preservation program?

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 costeffectiveness, and reducing user delays.
- Consensus definition from AASHTO, Industry
Representatives, and FHWA
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

Types of Maintenance
Activities
Type
Planned?
Before Deterioration?
Extends Facility
Life?
Routine
Yes
Not Necessarily
Sometimes
Reactive
(Demand)
No
No
Probably Not
Corrective
Generally
No
Sometimes
Preventive
Yes
Yes
Yes
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).
- AASHTO’s Standing Committee on Highways
Preventive Maintenance




Planned
Performed on good
pavements
Contributes to longterm performance
Examples: Fog Seal,
Chip Seal, Cape
Seal, Thin HMA
Overlay, Crack Seal
East 10th and Dry Hollow
Corrective Maintenance




Reactive
Performed on failing
pavements
Does not contribute
to long-term
performance
Examples: Patching,
Pothole Repair
East 14th Street
West 6th Street
Pavement Condition
Pavement Lifecycle
Time or Traffic
100
0
Pavement Condition Index
Pavement Condition
Critical PCI = 65 - 70
Time or Traffic
Pavement Condition
Corrective Repairs
Corrective
Maintenance/Repair
Time or Traffic
Curve Without Maintenance
Curve With Maintenance
Numerical Rating System
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%
8,035
2%
9,291
3%
0%
340,295
100%
344,230
100%
Very Poor/Failed
Total
64.4 miles
65.2 miles
3rd Street – Core Area Inlay
Preventive Maintenance
Pavement Condition
Preventive
Maintenance
Time or Traffic
Triggers
East 10th and Dry Hollow
East 16th Place Candidate
Rehabilitation
Pavement Condition
Rehabilitation
Time or Traffic
Third and Liberty Candidate
East
th
15
and G Street
E.15th Street Rehabilitation
Reconstruction
Pavement Condition
Reconstruction
Time or Traffic
Third and Liberty Options?
West 11th – Trevitt to Union
Cost Comparison of Options
Preventive maintenance:
 Rehabilitation:
 Reconstruction:

$ 10,270
$ 45,570
$ 574,000
Costs obtained from City of Bedford
(Texas) on a per-lane mile basis
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
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.
Questions?
Thank you!