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Receive and Discuss Updated Street Pavement Condition Index Report City of Sonoma Agenda Item Summary Meeting: City Council - Feb 19 2020 Department Staff Contact Public Works Colleen Ferguson, Public Works Director/City Engineer Agenda Item Title Receive and Discuss Updated Street Pavement Condition Index Report Summary In January 2020, City staff received a Budget Options Report (attached) prepared by a consultant, Fugro. The report provided updated pavement condition information for the City’s streets, documented a degradation in the condition of the City’s streets, and made funding recommendations for maintaining the existing street pavement condition. Fugro was contracted by the Metropolitan Transportation Commission (MTC) of the San Francisco Bay Area for their Pavement Management Technical Assistant Program (P-TAP), Round 20 to provide an update to the City of Sonoma’s Pavement Management Program. The Budget Options Report provides information with regards to network level pavement repair options, budget analysis with annual and multi-year programming, impact of varying levels of budgets, and cost-effective pavement repair recommendations to assist jurisdictions to develop maintenance and rehabilitation programs. of consisting system management StreetSaver pavement has Sonoma of City The a approximately 33.79 centerline miles of paved roadways. In July 2019, Fugro conducted distress surveys for the network. The distress data was entered into StreetSaver to calculate the Pavement Condition Index (PCI) for each section as well as the overall network. The PCI is an index ranging from 0 (very poor pavement) to 100 (new pavement). The overall network PCI from the last P•TAP inspection was 74 (as of October 14, 2017). The overall network PCI after Fugro's recent inspection was 72 (as of July 25, 2019). MTC’s Pavement Condition of Bay Area Jurisdictions 2018 (attached) includes a section titled “Sonoma County: A Convergence of Challenges”. The report shows 3-Year Moving Average PCI for the years 2014, 2015, 2016 and 2017 for all Bay Area cities and counties. The 2017 3- year Moving Average PCI for cities in Sonoma County and for the County are shown below. 2017 3-Year Moving Average PCI* Jurisdiction PCI* Pavement Condition Windsor 78 Good (PCI = 70-79) Sonoma 74 Rohnert Park 71 Healdsburg 62 Fair (PCI = 60-69) Santa Rosa 60 Cloverdale 59 At Risk (PCI + Sebastopol 56 Cotati 53 Sonoma County 49 Poor (PCI = 25-49) Petaluma 46 After discussions with the City, Fugro developed several “what-if” analyses using StreetSaver’s budget scenario module. This allowed the consultant to evaluate the impacts of various budget scenarios on PCI, deferred maintenance (unfunded backlog), and average remaining service life of the network. For the City’s current level of investment, the City has indicated that the expected budget will be $500,000 for each year (25% is preventive maintenance) for a total of $2.5 million over five years. The results showed that by 2024 the deferred maintenance would increase from $7.1 million to $10.2 million and the overall PCI would decrease to 69. Fugro recommended the City invest in maintaining its current PCI of 72. The budgets would be the following: • Year 1 - $500,000 • Year 2 - $725,000 • Year 3 - $725,000 • Year 4 - $900,000 • Year 5 - $1,000,000 Total for five years - $3,850,000 This scenario aimed to ensure that the overall pavement network PCI did not drop below the current PCI of 72 and slowed the growth of the deferred maintenance over the next five years. A total of $3.85 million would be required; of which 75% would be allocated to rehabilitation treatments. The deferred maintenance would increase from $7.1 million to $9.2 million in 2024. Fugro also recommended that the City fully fund its preventive maintenance program. The City’s pavement maintenance strategies include slurry seals and overlays. Since a large percentage of pavements are in “Good” to “Very Good” condition, it is important to preserve these pavements. For preventive maintenance, the City should continue to utilize cost effective treatments where appropriate such as slurry seals and crack seals. Crack sealing is relatively inexpensive and can keep moisture out of pavements and prevent the underlying aggregate base from premature failures. Life-extending surface seals such as slurry seals are also cost- effective for pavements currently in “Good” to “Very Good” condition. As MTC has stated preventive maintenance is where the City will get the most from its money. Recommended Council Action It is recommended the City Council receive the MTC P-TAP Round 20 Budget Options Report for City of Sonoma, California, dated January 13, 2020 and, if desired, discuss the report. Alternative Actions City Council discretion. Financial Impact New taxes or funding resources would be needed to follow Fugro’s recommendations for additional investment in Years 2-5 to maintain the City’s current PCI of 72. Environmental Review Status Environmental Impact Report Approved/Certified Negative Declaration No Action Required Exempt Action Requested Not Applicable Attachments MTC P-TAP Round 20 Budget Options Report for City of Sonoma, California MTC's Pavement Condition of Bay Area Jurisdictions 2018 Alignment with Council Goals: INFRASTRUCTURE: To provide reliable, safe and effective infrastructure (streets and roads, sidewalks, parking and pedestrian safety) throughout the City; maintain the high level of service and reliability of City facilities; monitor, mitigate and reduce community impacts related to development, infrastructure repair, community events or other outside agencies. Compliance with Climate Action 2020 Target Goals: Not directly related. CC: N/A MTC P-TAP Round 20 Budget Options Report (BOR) for City of Sonoma, California Submitted to: City of Sonoma No. 1 The Plaza Sonoma, California 95476-6618 Submitted by: Fugro 17752 Skypark Circle, Suite 240 Irvine, California 92614 Date: January 13, 2020 Budget Options Report (BOR) MTC P-TAP Round 20 Table of Contents Executive Summary ........................................................................................................................................ i Introduction .................................................................................................................................................. 1 Background ................................................................................................................................................... 1 Pavement Management Program (PMP) ...................................................................................................... 1 Network Level Analysis ................................................................................................................................. 2 Terminology .................................................................................................................................................. 3 Pavement Condition ..................................................................................................................................... 4 Network Replacement Value ........................................................................................................................ 4 Historical Network PCI .................................................................................................................................. 4 Current Overall Network PCI......................................................................................................................... 5 Budget Needs ................................................................................................................................................ 6 Maintenance Strategies ................................................................................................................................ 6 Budget Needs Analysis (Unconstrained) ....................................................................................................... 7 Budget Scenarios & Results .......................................................................................................................... 7 Scenario 1: No Funds (Do Nothing) ............................................................................................................... 7 Scenario 2: Expected Annual Budget ............................................................................................................ 7 Scenario 3: Maintain Current PCI .................................................................................................................. 8 Scenario 4: Improve PCI by 5 ........................................................................................................................ 8 Scenario 5: Budget Needs Average ............................................................................................................... 8 Pavement Condition Changes Based on Budget Scenarios .......................................................................... 8 PCI Maps ....................................................................................................................................................... 8 Recommendations ...................................................................................................................................... 11 Budget ......................................................................................................................................................... 11 Pavement Maintenance Strategies ............................................................................................................
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