Department of Public Works
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PAVEMENT MANAGEMENTPROGRAM2022-23
May 2023
Department of Public Works
Need a Tool to Manage Pavement Information and Answer Questions:
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Pavement Condition Index (PCI) Qualitative Scale
The PCI is a condition rating that ranges from 0 to 100 Citywide Weighted Average PCI = Pavement section PCI multiplied by its area / by the total area of the network Citywide Pavement Condition
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Factors That Effect Pavement Life
Traffic volume and static / dynamic loads
Weather (rain, poor drainage, extreme heat, UV/oxidation) Type of pavement
Age of pavement
Water runoff / pumping (high water)
Soil and base material under pavement
Lack of preventative maintenance / rehab M&R efforts and available funding Vibrant, Safe, and Beautiful
100 PCI (New)
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83 PCI
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70 PCI
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50 PCI
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25 PCI
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10 PCI (Failed)
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Maintenance Treatments
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Treatments
Slurry / Cape Seal – Thin asphalt layer to seal surface; Asphalt Concrete Overlay – Apply an asphalt concrete slurry (typically 1.5” to 2.0”) over existing street surface; may involve grinding of appropriate depth of asphalt (i.e. grind & overlay); Reconstruction – Remove existing roadway section and Replace with new.
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Treatments
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Pomona Street Mileage
Pomona Pavement Management Program
Pavement studies performed in 2008, 2012, 2016, 2019 & 2022 68,710,845 SF of pavement throughout City
Weighted Citywide PCI = 68.1 (was 68.1 in 2019 and 64.5 in 2016) Citywide network – 350.3 section miles, includes:
130 section miles of Arterials/Collectors;
220 section miles of Locals; and
3,526 total pavement sections
The pavement network is the City’s largest asset with an estimated total replacement cost of $695.6 million Vibrant, Safe, and Beautiful
Citywide Pavement Condition
Over 44% of all streets are in Very Good to Good Condition Vibrant, Safe, and Beautiful
Citywide Pavement Condition
Over 58% of Residential Streets have a PCI of 60 or better and are in Fair to Very Good condition Over 75% of Arterial Streets have a PCI of 60 or better and are in Fair to Very Good condition Over 64% of Total Streets have a PCI of 60 or better and are in Fair to Very Good condition Vibrant, Safe, and Beautiful
Citywide Street Network PCI Map
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2022-23 Update of Pomona PMP
Over the past several months, the City has been working with Bucknam Infrastructure Group to assess the previous PMP database, its pavement segmentation, and to incorporate recent pavement maintenance work histories Completed a pavement condition survey on all streets (not alleys) to generate a Pavement Condition Index (PCI) for each pavement section – QC variances to 2019 study Developed and ranked street conditions, maintenance recommendations, and cost estimates for all streets (not alleys) based on current conditions and maintenance practices Developed a preventive maintenance and CIP rehab schedule to report on the overall weighted average PCI anticipated for the next five years based on projected needed/available funding Vibrant, Safe, and Beautiful
Next Steps (Identification of PMP Application & Funding Sources) Forecast Pavement Rehabilitation Projects:
How does our current $7.1 Million Annual PW M&R/CIP budget perform over five years against today’s conditions; What level of funding is necessary to “maintain” today’s conditions (PCI 68.1); What level of funding is necessary to “increase” today’s conditions to 72.0 Need to Consider:
Current Funding – Special Assessment alternatives / Grants Long-Term Goals – Proactive Arterial - Local planning
Alternative pavement applications (ARHM, CCPR, etc.)
Achieve goal of “preventative maintenance” condition
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Sample Pavement Life Cycle
Bucknam Infrastructure Group, Inc.
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Maintenance Methods
Bucknam Infrastructure Group, Inc.
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Bucknam Infrastructure Group, Inc.
Scenario 1 – Citywide Five-Year Projection (Actual Budget) Vibrant, Safe, and Beautiful
Bucknam Infrastructure Group, Inc.
Scenario 2 – Maintain PCI Funding
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Scenario 3 – Increase PCI Funding
Bucknam Infrastructure Group, Inc.
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Bucknam Infrastructure Group, Inc.
Cost of Alley Rehabilitation vs. Street Improvements
Regarding Alley v. Other Public Street improvement costs, we have included the initial data below for review:
Recommended Approach
Currently, due to the overall citywide conditions found, it is more cost effective to appropriate annual PMP revenues for street rehabilitation rather than alley improvement/reconstructions Alley reconstructions are expensive to repair and rehabilitate Based on the City’s maintenance/rehabilitation/reconstruction practices and their associated unit costs, the total replacement value of the networks is as follows:
Alley totals: 4,471,251 SF, total replacement value is $44.5 million Note, some alley sections are gravel
Alley sections have not been surveyed since 2013-2016
Other Public Street (Arterial, Local) totals: 68,712,500 SF. Total replacement value is $695.6 million Vibrant, Safe, and Beautiful
Bucknam Infrastructure Group, Inc.
PCI Results based upon All Budget Scenarios
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Bucknam Infrastructure Group, Inc.
PCI Results based upon All Budget Scenarios – Local Streets Vibrant, Safe, and Beautiful
Bucknam Infrastructure Group, Inc.
PCI Results based upon All Budget Scenarios – Arterial Streets Vibrant, Safe, and Beautiful
Bucknam Infrastructure Group, Inc.
Findings and Recommendations
Network has weighted PCI of 68.1 (Arterials = 74.5; Locals = 63.9); 26% of the Arterial network (approx. 33.5 miles) qualifies for overlay / reconstruction; 63% of the Local network (138.6 miles) qualifies for overlay / reconstruction; At a minimum, capital and maintenance projects should focus on maintaining the current weighted PCI of 68.1 over next five years; The City should re-evaluate per METRO and other funding requirements.
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Bucknam Infrastructure Group, Inc.
Findings & Recommendations (Cont’d)
Budget shown in “Scenario 2 – Maintain PCI” (previous slide) is ample to maintain weighted PCI of 68.1 after five years, however, the citywide deferred backlog slightly increases from a level of $121.7 million to $185.5 million after five years; Delaying repairs on streets where pavement condition indicates a need creates deferred maintenance. Deferred maintenance includes pavement maintenance / rehabilitation that is needed across the entire network, but cannot be performed due to the lack of available funding and is pushed to the next budget cycle. The actual repairs that are being deferred are often referred to as a “backlog”.
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Bucknam Infrastructure Group, Inc.
Findings & Recommendations (Cont’d)
Generate updated Citywide Pavement Management Program report as required to qualify for funding; The City should continue to evaluate alternative pavement applications such as Cold Central Plant Recycling, cape seal, high-density mineral bond, and rubber overlay to stretch the City’s allocated funding and pavement section life cycles; Look for ways to increase funding for local streets (SB-1, Measure M, etc.).
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Bucknam Infrastructure Group, Inc.
Issues Associated with Current Funding Levels
No Gas Tax proceeds (for Local Streets)
Reduced Measure R funds
Measure R used to supplement Arterials instead of Collector/Local Streets No other grant/funding sources for Local Streets
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Bucknam Infrastructure Group, Inc.
Potential Funding Solutions
Focus on Streets without Alleys for SB-1 funding
ARP, Clean CA, Earmarks, Multi Sub-Regional Measure M
Refocus on Preventative Rehabilitation/Maintenance
Solid Waste Franchise Fee ($750k)
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Questions?
Department of Public Works
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