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Historical and Projected Funding Outcomes <br />Based on current funding, a ten year analysis (2018-2028) has been performed using a PMS <br />software program. The program evaluates the deterioration of each section based on individual <br />PCI ratings. Itthen projects when to apply the necessary treatment at the appropriate time. When <br />possible, the program recommends a less expensive treatment earlier in the degradation curve to <br />prevent the street from falling into an overlay or reconstruct range. In the following four graphs <br />(Figs. 4,5,6,7) this projected evaluation includes historical data to present a more comprehensive <br />view of the street system. The graphs show the impact of past and current funding over a 20-year <br />period (2008 to 2028). Each graph indicates the percentageof streets that fall within a specific <br />treatment range (reconstruct, overlay and no treatment). Plotting the percentages of streets within <br />a treatment range over time visually demonstrates the overall condition of streets within that <br />class. This is useful when deciding how to allocate funds in future years. <br />Historical and Projected Funding Impacts to Arterial Streets <br />100% <br />90% <br />80% <br />70% <br />60% <br />2017 bond <br />measureends <br />2023 <br />50% <br />40% <br />30% <br />20% <br />10% <br />0% <br />200820092010201120122013201420152016201720182019202020212022202320242025202620272028 <br />No TreatmentOverlayReconstruct <br />Figure 4 Historical and Projected Funding Impacts to Arterial Streets <br />Arterial streets have been a major focus of the PPPsince 2002; as a result,the percentage of <br />arterial streets within the reconstruct treatment range has steadily declined. Roughly 39 lane- <br />miles are planned for treatment through the 2017 Bond Measure. When the Bond Measure ends <br />in 2023, we see an increase in the overlay range due to streets beginning to deteriorate beyond <br />regular maintenance activities. The projected funding of $3.2 million isinadequate to prevent <br />overlays at the bottom end of the range from falling into the reconstruct category. The increased <br />cost for reconstruct treatments as well as a decrease in projected funding furthers the potential <br />for overlays falling into the reconstruct category. <br />15 <br />May 29, 2019, Work Session - Item B <br /> <br />