2021-10-20 City Council Item No. 12.1 2021 -2022 Pavement Management Program (PMP) Report for Fiscal Years 2021-2026 Regular MEETING - Additional Meeting MaterialsCarlos Geronimo, P.E,
Principal Engineer
October 20, 2021
City of Menifee, CA
2021-2022 PAVEMENT MANAGEMENTPROGRAM (PMP) REPORT for
FISCAL YEARS 2021-2026
Prepared by: Peter Bucknam, Project Manager, Bucknam Infrastructure Group, Inc.
IMPROVING THE QUALITY OF LIFE OF MENIFEE RESIDENTS
Background
Pavement Maintenance Inventory
•The City began its PMP in 2008
•Bucknam has performed the last three studies for the City,
in 2016, 2018 & 2020
•68,953,586 SF of pavement throughout City
•Citywide network –340.7 section miles, includes:
•148.4 section miles of Arterials/Collectors;
•192.3 section miles of Locals; and
•1,970 total pavement sections
The pavement network is the City’s largest asset with an estimated total
replacement cost of $583.1 million
Factors That Effect Pavement Life
•Traffic volume and static / dynamic loads
•Weather (rain, poor drainage, extreme heat, freezing)
•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
•What is the size of the pavement network?•What is its overall condition?•How fast is it deteriorating or improving?•When do I need to perform repairs to maximize pavement life?•Where should we focus our maintenance and CIP projects?•What level of annual funding is needed to sustain/improve the network?•MicroPAVER•This software is heavily used throughout Southern California:
•This includes over 200 cities within California; 30+ cities in LA Countyand all 25+ cities in Orange County
•MicroPAVER allows for the collection of 20 Asphalt Concrete (AC) and19 Portland Cement Concrete (PCC) distress types
•Three levels of severity can be collected for each distress type (Low,Medium, and High)
Need a Tool to Manage Pavement Information and Answer
Questions:
Pavement Management Program
•Steps to Implementing a PMP:
Step 1: Assessment of Existing Pavement Network
Step 2: Update of Work Histories
Step 3: Pavement Condition Survey (Inspections)
Step 4: Develop Rehabilitation Strategies / Life-cycle Analysis
Step 5: Forecast Future Pavement Rehabilitation Projects and Costs
Step 6: Develop Plan based on available budget and desired goals
2020-21 PMP Report
Since 2020, the City has been working with Bucknam to assess the previous
PMP database, its pavement segmentation and to incorporate recent
pavement maintenance work history and budgeted projects to produce the
2021-22 Report
Completed a pavement condition survey on all streets to generate a
Pavement Condition Index (PCI) for each pavement section –QC variances
to 2018 study
Developed and ranked street conditions, maintenance recommendations,
and cost estimates for all streets 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
Pavement Condition Index (PCI)
•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
PCI = 86 to 100 (Very Good to Excellent)
Action Preventative/Stop Gap
PCI = 60 to 85 (Fair to Very Good)
Action Surface Treatment (Slurry Seal)
PCI = 41 to 60 (Poor to Fair)
Action 1.5” –3” Overlays or Grind-Overlays
PCI = 0 to 40 (Failed to Poor)
Action 4” to 6” Reconstruction
Condition Distribution by Section Mileage for All
Streets
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Pavement Condition Index (PCI) –All streets
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PCI Report
Citywide Street Network PCI Map
Next Steps (Identification of PMP Application & Funding Sources)
Forecast Pavement Rehabilitation Projects
•How much funding is needed to “maintain” today’s PCI over five years
•What level of funding is needed to “improve the PCI” to 80 over five years
Need to Consider:
•Current Funding –General Assessment alternatives / Grants
•Long-term Goals –Proactive Arterial -Local planning
•Alternative pavement applications
•Achieve goal of “preventative maintenance” condition
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Forecasted Maintenance Report (FMR)
The FMR prioritizes road segments, based on planned projects and PCI.
The FMR is used as a programming tool.
Figure 2 –Sample Pavement Life Cycle
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Maintenance/Rehabilitation Methods
•Crack Seal/Patching -General Repairs-Stop Gap (Localized Maintenance)
•High Density Mineral Bond (HDMB) -(Global Maintenance); PCI range –75 to 95
•Slurry Seals (Global Maintenance); PCI range --65 to 85
•Cape Seals (Global Maintenance); PCI range –40 to 70
•Overlays (Major Maintenance); PCI range --20 to 70
•AC Reconstruction (Major Maintenance); PCI range –0 to 20
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Scenario 1 –Projected Work Program
(Maintain PCI Budget)
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Scenario 2 –Projected Work Program
(Increase PCI Budget)
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Findings and Recommendations
•Network has weighted PCI of 77.0 (Arterials = 75.4; Locals = 78.4);
•14% of the Arterial network (approx. 21.3 miles) qualifies for overlay/reconstruction;
•8% of the Local network (15.6 miles) qualifies for overlay / reconstruction;
•At a minimum, capital and maintenance projects should focus on maintaining the
current weighted PCI of 77.0 over next five years;
•The City should re-evaluate PMP rehabilitation budget every two years to
improve/adjust Public Works CIP;
•The City should perform maintenance inspections every two years to build upon this the current planning model forecasts for 2021-26 and beyond to ensure results;
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Findings (Cont’d)
•Budget shown in Table 3 (PMP report) is ample to maintain weighted PCI of 77.0 after five years, additionally, the citywide deferred backlog decreases from a level of $42.7 million to $37.3 million after five years;
•Generate updated Citywide Pavement Management Program report every two years to assess the City’s progress with the PMP
•The City should continue to evaluate alternative pavement applications such as cape seal, high density mineral bond, and rubber overlay to stretch the City’s allocated funding and pavement section life cycles.
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Questions?
City of Menifee
Public Works Department