Agenda - Council - 11/28/2023 - Laserfiche WebLink

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• Section 27 Unplatted o Generally located southwest of Bunker Lake Blvd and Sunfish Lake Blvd • Commercial/Industrial subdivision • Constructed in 2001 •0.47 miles of 40' wide urban section with concrete curb and gutter • Crack seal/seal coat improvements in 2006 and 2018 • Orchard Hills Townhomes o Generally located south of Alpine Drive and east of TH 47 •Residential townhouse subdivision • Construction in 2001 •0.30 miles of 32' wide urban section with concrete curb &gutter • Crack seal/seal coat improvements in 2006 and 2013 • Crack seal improvement in 2021 • Seasons of Ramsey o Generally located north of Bunker Lake Blvd, east of Center Street •Residential single-family and townhouse subdivision • Construction in 2013 •0.08 miles of 31' wide urban section with concrete curb &gutter • Subdivision was prioritized due to pavement condition and project location • Street patching due to Garden View development service connections •Development contributed funds towards overlay improvements •Town Center Gardens Ist,2nd,&3rd o Generally located north of Bunker Lake Blvd,west of Ramsey Blvd •Residential townhouse subdivision • Construction between 2004 and 2005 • 1.14 miles of 32' wide urban section with concrete curb &gutter • Crack seal/seal coat improvement in 2010 • Crack seal improvement in 2021 Proposed Improvements Review of ground penetrating radar(GPR), as-built plans, and the Bowers Drive Mill and Overlay Evaluation performed by Braun Intertec indicates three separate mill and overlay thicknesses will be used on the various street segments. Orchard Hills Townhomes subdivision does not have sufficient pavement thickness for a 2-inch mill and overlay improvements,therefore a 1.5-inch mill and bituminous overlay will likely be used. During design, other mill depths will be explored to determine the most efficient pavement section. After review of the Bowers Drive Mill and Overlay Evaluation,which is attached to this case for reference, Staff is proposing to perform a full-depth mill and pavement overlay. Additionally, some minor base corrections are anticipated to be required. All remaining subdivisions have sufficient existing bituminous thickness to perform a 2-inch mill and bituminous overlay. Per typical overlay improvements, spot concrete curb and gutter repairs will be performed on damaged curb. Where feasible,the City has switched to a saw& seal method for curb cracks at a significant cost savings. This is performed on hairline cracks,without vertical displacement. For areas of bituminous curbing, repairs to the curbing are not anticipated,though the City typically updates curb adjacent to storm sewer inlets to concrete during mill and overlay projects. Municipal sewer and water exist under all street segments in the project except for Bowers Drive. This project is not proposing any repairs to watermain or sanitary sewer. Minor storm sewer structure repairs,typically