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2.0 Proposed Improvements <br />thrdnd <br />2.1 194 Avenue NW, Irving Circle NW, Lowell Street NW, 193 Lane NW, 192 Avenue <br />rd <br />NW, 193 Avenue NW, King Circle NW, Norfolk Street NW, Oxford Avenue NW <br />These roads are proposed for reconstruction. The pavement has surpassed its useful life and is <br />in need of replacement. The pavement surface shows many signs of failure, including potholes, <br />pattern cracking, and patching. The roads currently utilize bituminous curb and exhibit the <br />characteristics of an urban section, as drainage is predominately conveyed along the curb as <br />opposed to ditches. <br />It is proposed that B412 concrete curb and gutter is installed. This is a slightly smaller curb than <br />the City standard B618 but will better match the existing conditions. A concrete curb is proposed <br />as it assures better drainage than bituminous curb. It is proposed that the existing bituminous is <br />reclaimed into the underlying gravel to produce material that can be utilized as base during the <br />reconstruction. The reclaimed aggregate base will be removed and the subgrade prepared to the <br />plan elevations. The reclaimed aggregate base will then be constructed to the planned thickness <br />and concrete curb and gutter will be installed. Finally, the roads will be repaved with two lifts of <br />bituminous, estimated to be 4 inches thick. Driveways will be matched and drainage <br />improvements will be made. The total estimated cost for the improvements is $1,679,485. <br />The project limits are depicted in Figure 1 below. The proposed typical section is depicted in <br />Figure 2. <br />Figure 1. <br />Reconstruction Area <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />City of Elk River, Minnesota 2 | Page <br />2017 Street and Utility Improvements <br />