Agenda - Public Works Committee - 11/21/2023

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• 0.32 miles of 38' wide urban section with concrete curb and gutter • Crack seal / seal coat improvements in 2003, 2012 and 2017 • 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 1st, 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.