2013 08 31 pavement preservation
TRANSCRIPT
Pavement Preservation
Pavement Preservation is "a program employing a network level, long-term strategy that enhances pavement performance by using an integrated, cost-effective set of practices that extend pavement life, improve safety and meet motorist expectations."
• An effective pavement preservation program will address pavements while they are still in good condition and before the onset of serious damage.
• Applying a cost-effective treatment at the right time, the pavement is restored almost to its original condition.
• The cumulative effect of systematic, successive preservation treatments is to postpone costly rehabilitation and reconstruction.
Source: FHWA Pavement Preservation Expert Task Group
Pavement Preservation
• During the life of a pavement, the cumulative discount value of the series of pavement preservation treatments is substantially less than the discounted value of the more extensive, higher cost of reconstruction and generally more economical than the cost of major rehabilitation.
• Additionally, performing a series of successive pavement preservation treatments during the life of a pavement is less disruptive to uniform traffic flow than the long closures normally associated with reconstruction projects.
Pavement PreservationRoutine Maintenance
Routine Maintenance "consists of work that is planned and performed on a routine basis to maintain and preserve the condition of the highway system or to respond to specific conditions and events that restore the highway system to an adequate level of service."
Source: AASHTO Highway Subcommittee on Maintenance
Routine Maintenance activities are often "in-house" or agency-performed and are not normally eligible for Federal-aid funding.
Pavement PreservationRoutine Maintenance - 2010
2010 Routine Maintenance Cost = $216,182
Pavement PreservationRoutine Maintenance - 2011
2011 Routine Maintenance Cost = $228,047
Pavement PreservationRoutine Maintenance - 2012
REDUCTION IN OPERATING EXPENSES = $123,375 2012 Routine Maintenance Cost = $104,672
Routine Maintenance
EXAMPLES
• Ditching & Roadside Drainage
Routine Maintenance
EXAMPLES
• Ditching & Roadside Drainage• Pavement Marking Program
Routine Maintenance
EXAMPLES
• Ditching & Roadside Drainage• Pavement Marking Program• Crack Fill
Routine Maintenance
EXAMPLES
• Ditching & Roadside Drainage• Pavement Marking Program• Crack Fill• Dura-Patch
Routine Maintenance
EXAMPLES
• Ditching & Roadside Drainage• Pavement Marking Program• Crack Fill• Dura-Patch• Pothole Patch
Routine Maintenance
EXAMPLES
• Ditching & Roadside Drainage• Pavement Marking Program• Crack Fill• Dura-Patch• Pothole Patch• Strip Patch
Routine Maintenance
EXAMPLES
• Ditching & Roadside Drainage• Pavement Marking Program• Crack Fill• Dura-Patch• Pothole Patching• Strip Patching• Tree Trimming
Routine Maintenance
EXAMPLES
• Ditching & Roadside Drainage• Pavement Marking Program• Crack Fill• Dura-Patch• Pothole Patch• Strip Patch• Tree Trimming• Signage
Pavement PreservationPreventative Maintenance
Preventive Maintenance is "a 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 significantly increasing the structural capacity)."
Source: AASHTO Standing Committee on Highways, 1997
As a major component of pavement preservation, preventive maintenance is a strategy of extending the service life by applying cost-effective treatments to the surface or near-surface of structurally sound pavements.
Preventative Maintenance
PCI = 100 - 55(Very Good /Good)
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good• Pavement Rejuvenators ($0.85/SY)
Applied at 0-5 years
Extends life of pavement 3-5 years
Reapply every 4-6 years
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good• Fog Seal ($5.00/Gal)
Protects old oxidized asphalt surfaces
Seals small cracks and surface voids
Blackens new chip seals
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
•Route & Crack Fill Asphalt Pavement ($4.75/Lbs)
Treat pavement at 3-5 years
Adds 3-5 years of service life
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
•Saw & Seal Concrete Joint ($4.50/Lbs)
Treat pavement over a PCI of 55
Extends life of pavement
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
•Concrete Slab Repairs ($50.00/SY)
Essential for rideability
Eliminates water penetration
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
•Slurry Seal ($3.50/SY)
Extends life of pavement by protecting it from weathering
Low volume and low ADT rural and residential streets
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
• Cape Seal ($4.75/SY)
Extends life of pavement and reduces reflective cracking
Suitable for low or high ADT streets
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
• DuraChip ($4.75/SY)
Engineered, higher asphalt residue for superior adhesion
Suitable for moderate to higher ADT streets
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
• Stress Absorbing Membrane Interlayer ($6.25/SY)
Treat at 10-14 years
Reduces and minimizes reflective cracking
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
• Smoothseal ODOT 424 ($3.58/SY)
Treat at 10-14 years or PCI of 55-60
Can be placed with Highway paving crew
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
• Smoothseal ODOT 424 ($3.58/SY)
Arlington road project
Excellent product for residential paving program
Preventative Maintenance
EXAMPLE PCI = 100 to 55 Very Good to Good
• Smoothseal ODOT 424 ($3.58/SY)
Arlington road project
Excellent product for residential paving program
Pavement PreservationPavement Rehabilitation
Minor Rehabilitation consists of non-structural enhancements made to the existing pavement sections to eliminate age-related, top-down surface cracking that develop in flexible pavements due to environmental exposure. Because of the non-structural nature of minor rehabilitation techniques, these types of rehabilitation techniques are placed in the category of pavement preservation.Source: AASHTO Standing Committee on Maintenance Definition
Minor Rehabilitation
PCI = 55 - 25 (Poor)
Minor Rehabilitation
EXAMPLE PCI = 55 to 25 Poor• 1.25” – 2.0” Overlay Only ($5.25 to $9.00/SY)
Increase pavement thickness to strengthen existing pavement sections to accommodate existing or projected traffic loading conditions
Minor Rehabilitation
EXAMPLE PCI = 55 to 25 Poor• 1.25” – 2.0” Mill & Fill ($6.50 to $10.30/SY)
Restoring existing structural capacity through the elimination of age-related, environmental cracking of embrittled pavements
Minor Rehabilitation
EXAMPLE PCI = 55 to 25 Poor• ¾” - 2” Hot In-Place Recycling ($4.25/SY)
60% the cost of overlay
No change in reveal
New engineered mix designs are high performing compared to 15 years ago
Minor Rehabilitation
EXAMPLE PCI = 55 to 25 Poor
• 3”-4” Cold In-Place Recycling ($7.75/SY)
Significant structural treatment of most pavement distresses
Improved ride quality
Major Rehab / ReconstructionPCI = 25 - 0 (Very Poor)
Major Rehab / ReconstructionPCI = 25 - 0 (Very Poor)
EXAMPLE PCI = 25 to 0 Failed
• Rehabilitation/Reconstruction ($15 to $50+ /SY)
Reduce Aging
Increase Strength
Increase capacity
Cost of Resurfacing
Pavement Preservation – Cost
15 Year Pavement Preservation Budget
City of Green
Proposed Annual Allocation of Funds for Pavment Management
(15 year resurfacing interval)
Annual Area of
Treatment (Sy)
Total Estimated
Cost per SY
Total Annual
Funding Needed
Ave Federal
Funding Percent
Received
Ave Local
Funding Percent Needed
Local Annual Funding Needed
Asphalt Resurfacing for Residential Streets 66,650 15.00 999,750.00 0 100 999,750.00Asphalt Resurfacing forLocally Funded Main Streets 26,600 20.00 532,000.00 0 100 532,000.00Local Funding for Asphalt Surface Preservation Treatments 60,000 4.50 270,000.00 0 100 270,000.00Concrete Street Slab Repairs 1,000 50.00 50,000.00 0 100 50,000.00Concrete Street Saw/Crack Seal Program 40,000 3.50 140,000.00 0 100 140,000.00
Local Matching Funds for Federally Eligible Streets 67,000 36.952,475,650.0
0 60 40 990,260.00
Total Annual Funding Needed 2,982,010.00
15 Year Pavement Preservation Budget
Asphalt Resurfacing for Res-idental Streets
34%
Asphalt Resurfacing forLocally Funded
Main Streets18%
Local Funding for Asphalt Surface Preservation Treatments
9%
Concrete Street Slab Repairs
2%
Concrete Street Saw/Crack Seal Pro-
gram5%
Local Matching Funds for Federally Eligible Streets
33%
Program Breakdown
2014 Proposed Paving Program
Program Breakdown
2014 Proposed Paving Program
Program Breakdown
Pavement Preservation – Funding
OPERATING CAPITALAccount Description 2014 15 Year 20 Year
201-2100-52410 CONCRETE REPAIR BID Slab Repairs 50,000 Saw & Seal 140,000 201-2100-52411 CRACK FILL BID Route & Crack Fill 70,000 201-2100-52514 ASPHALT BID In-House Residential 424 250,000 679,750 430,000 Mains 50,000 332,000 200,000201-2100-52425 RENTALS (2) 10 Ton Rollers 30,000 Distributor 40,000 201-2100-53630 ROAD IMPROVEMENTS Surface Treatments 200,000 201-2300-52412 CONTRACTED SERVICES ROW Drainage 80,000
$910,000 $1,011,750 $630,000
FEDERAL CLASSIFIED $990,260 $990,260
TOTAL PROGRAM FUNDING $2,912,010 $2,530,260