03/13/2017 City Council Agenda - Laserfiche WebLink

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EXECUTIVE SUMMARY — (continued) Even though the backlog figure increases money -wise in 2016, the projected needed treatments for Arterials and Collectors beyond 2018 remain relatively steady. A significant impact to the increasing backlog is the declining condition of residential streets. The increase indicates that the local gas tax alone is insufficient to stabilize the backlog long term. It is also important to note that the backlog estimate is limited to improved asphalt streets. It does not take into account the repair needs for concrete streets, unimproved streets, sidewalks, off-street shared -used paths, or other elements of the transportation system. The 2017 report uses three funding scenarios to project treatment needs and costs over a 10 -year period. The analyses for all three scenarios use costs updated by Engineering in 2016 and are adjusted to include a 2% inflation factor. The last two scenarios, preventing the street system from falling into reconstructs and treating those that are at a reconstruct treatment signify the progress made because of bond measure funding for the pavement preservation program. Following is a summary of the analyses: • Based on the projected funding (see table pg. 17), a $200 million backlog is projected in 10 years. Last year the projected backlog was $186 million in 10 years. The current street repair bond measure will end in 2019 decreasing pavement preservation from an average of $11.3 million to $3.3 million unless additional funding is approved. A funding level of $9.2 million annually is needed to prevent arterial and collector streets from falling into the reconstruct range and eliminate the reconstruct backlog for arterial and collector streets in 10 years. A funding level to $14.6 million annually is needed to prevent any street from falling into the reconstruct range and eliminate the total reconstruct backlog in 10 years. Residential streets account for approximately 66% (lane miles) of the system and over half of the current backlog is for the treatment of these streets.