Agenda - Public Works Committee - 02/18/2020

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3. EXISTING CONDITIONS 3.1 Existing Streets 3.1.a Klemish, Klemish & Flores neighborhood The existing right-of-ways along the street segments proposed in the 10-year CIP to receive overlays as part of this project generally are 66-feet in width. The paved street width is 24-feet as measured from the edge of bituminous. All streets in this project were constructed as a rural section, with bituminous pavement and ditches. The streets segments proposed to receive overlays in 2020 have 2018 PASER ratings of 5, with the exception of Sodium Street which had one section of pavement with a 2018 PASER rating of 8. In 2019 these PASER ratings fell to 3, with the exception of Sodium Street which half the street was rated a 4 and the other half 5. Staff determined this neighborhood was structurally beyond an overlay improvement, with the exception of Sodium Street. WSB was employed to complete a pavement forensics, which included pavement corings of the proposed overlay street segments. This included 2 corings on Sodium Street; both cores were in poor condition, which showed degradation and deterioration. The WSB pavement forensics report Appendix D is included in of this report. Based on the manner in which the existing pavement is deteriorating, Staff does not support completing an overlay improvement for the Klemish and Klemish & Flores neighborhood. The existing streets are still serviceable with moderate maintenance patching. Staff recommends not completing a more involved full-depth reclamation (FDR) or reconstruction project at this time. 3.1.b Sunfish Square, Sunfish Square 2nd neighborhood The existing right-of-ways along the street segments proposed in the 10-year CIP to receive overlays as part of this project generally are 60-feet in width. The paved street width is 31-feet as measured from the back-of-curb. All streets in this project were constructed with bituminous pavement and concrete curbing, and many of the street segments contain storm sewer. The street segments proposed to receive overlays in 2020 in the Sunfish Square and Sunfish Square nd 2 subdivisions had 2017 PASER ratings of 7, and 2018 PASER ratings of 5. Staff did not rate these street segments in 2019. When visually inspecting the street segments in December, Staff felt there would be several areas which would require full-depth patching, and the overlay would likely have high amounts of reflective cracking. WSB was employed to complete a pavement forensics, which included 6 pavement corings spread out among the street segments. Of the 6 corings, 4 were in good condition, 1 was starting to show signs of deterioration, and 1 was in poor condition showing deterioration. The bituminous depth ranged from 2 to 3-inches thick, with 3.5 to 4.5-inches of aggregate below. Feasibility Report Pavement Overlay Improvements City of Ramsey Project No. 20-02 3