CITY COUNCIL STAFF REPORT
Meeting: 5/17/2022
Subject
Consider the 2022 Annual Pavement Report.
Recommended Action
Receive the 2022 Annual Pavement Report.
Discussion
The City of Cupertino’s street network is over 138 miles in length and covers approximately 26 million square feet (eight percent of the total area of the City of Cupertino.) The street network is one of the highest valued assets maintained by the City.
With proper maintenance, an asphalt street will typically last 20 years without the need of a total reconstruction, depending on variables such as traffic load. It is widely accepted that maintaining streets in good condition is cheaper and more efficient than reconstructing streets. Extending the life of pavement, as opposed to the replacement of pavement, is the goal of the Pavement Management Program (Program.) Street condition is measured by an industry standard Pavement Condition Index (PCI,) a 100-point scale. In Cupertino, the long-term target rating has been established at 82, a rating that is equal to “Very Good” on the rating scale, as detailed in Attachment A. Achieving and maintaining this goal ultimately leads to cost savings, as funding can be allocated to preservation rather than rehabilitation.
The Metropolitan Transportation Commission (MTC) monitors and reports on the condition of pavement in the Bay Area in their Regional Pavement Condition Summary Report. The PCI for Cupertino’s street network, along with over 100 Bay Area agencies, is updated annually in this report. Staff anticipates that the report will show that the 2021 PCI of Cupertino’s street network will be an 84, and that the three-year moving average will also be an 84. The one-year PCI value and the three-year PCI value are expected to be the same because the street network has been consistently maintained over several years. This is also indicative of a well performing street maintenance program. At a PCI value of 84, Cupertino’s street network is ranked third out of 109 Bay Area agencies.
Most street networks, including the Cupertino Street Network, degrade approximately two PCI points annually, due to weather and wear and tear from vehicles. Appropriate maintenance to a street network can overcome the degradation and successfully maintain or increase the condition of streets.
The table below shows the Cupertino Street Network PCI values for the years 2019-2021, which includes the three-year MTC Moving Average. 2019
2020
2021
Annual PCI
85 84
84 3-year Moving Average PCI
83 85
84 The following table shows the PCI values for arterial, collector, and residential streets for the last three years, plus the 2022 PCI values that are anticipated upon completion of all scheduled projects this summer. A street-by-street listing of PCI values can be found HERE.
The street network PCI is calculated by weighting the areas of arterial, collector, and residential streets to the total combined area. The below pie chart represents the percent of total network area by arterial, collector, and residential streets.
Residential streets represent the largest portion at over 70% of the total network area. With residential streets having the largest area, their PCI value has the greatest contribution to the cumulative street network PCI. The 2020 Program, although reduced, focused on collector streets. The 2021 Program focused on residential streets. The 2022 Program will focus on rehabilitation of residential streets, with preventive maintenance on collector streets.
Budget Options Report
Cities in the Bay Area typically use an application called StreetSaver, which tracks PCI and provides the ability to run various budget scenarios. Based on a series of assumptions, StreetSaver allocates available funds across the street network, recommends improvements, and forecasts future PCI if recommendations are implemented. Staff routinely updates values in StreetSaver to reflect current costs with the type of pavement treatment recommended at various PCI values. In addition, all street sections are inspected every two to four years and the PCI values are updated accordingly. The last inspection occurred in December of 2021.
Cupertino currently allocates $3 million per year to street maintenance. To maintain the current PCI of 84 through 2026, StreetSaver recommends a funding strategy with the following budget allocations:
FY 21/22
FY 22/23
FY 23/24
FY 24/25
FY 25/26
$3 Million
$3 Million
$4 Million
$4 Million
$5 Million
Alternatively, if the City continues to allocate the current budget of $3 million per year over the next five years, StreetSaver shows a PCI decrease to 83 in 2026. 2022 Pavement Management Projects
The 2022 Pavement Maintenance Project - Phase I will go out to bid in May 2022, with work expected to begin in July 2022. The project is estimated at approximately $2 million and includes an asphalt overlay on twelve residential streets, as well as asphalt digout repairs on various streets and park pathways. The 2022 Pavement Maintenance Project - Phase II project is estimated at approximately $1 million and consists of a variety of treatments including crack fill, rubberized asphalt chip seal, and micro-surfacing. The project will go to bid in June 2022 and is expected to begin in Fall 2022. A street-by-street listing of improvements to be completed by the 2022 Pavement Maintenance Phase 1 and 2 projects is included as Attachment B. Funding for additional crack fill and fog seal work is available in the Operations budget. The scope of work is under development and may be included in the Phase 2 Project to facilitate better bid results.
Sustainability Impact
Timely maintenance of the street network conserves valuable resources, as compared to the consumption of additional resources that are required when maintenance is not performed. The proposed funding scenario will not impact the City’s ability to provide timely preventive maintenance treatments.
Fiscal Impact
There is no fiscal impact in receiving the Annual Pavement Report.
Funding for the 2022 Pavement Maintenance Phase 1 project is currently available in Fiscal Year (FY) 2022 budget 270-85-821 900-921. Project expenses may be reimbursed by Measure B funds. At the time of project award, staff will recommend Council adopt a Resolution allocating FY 2023 funds to the 2022 Pavement Maintenance Phase 2 Project. No additional funds are needed. _____________________________________
Prepared by: Jo Anne Johnson, Project Manager
Reviewed by: Matt Morley, Director of Public Works
Reviewed by: Dianne Thompson, Assistant City Manager
Approved for Submission by: Jim Throop, City Manager
Attachments:
A – Ranges of PCI Values and Street Conditions
B –2022 Pavement Maintenance Project Location List