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The proposed pavement section for the roadways will consist of I V2 inches of bituminous wearing course, 2'/2 inches of bituminous base course, 6 inches of Class 5 aggregate base, and 12 inches of select granular material over an acceptable, compacted subgrade. After the street excavation is completed to accommodate the above mentioned pavement section, a geotextile fabric will be placed to separate the existing underlying soft materials from the granular materials. One foot of select granular material or "sand cushion" will be placed on the geotextile fabric to provide a firm base for the 6 inches of Class 5 aggregate base and 4 inches of bituminous asphalt pavement. It should be noted that this report proposes to replace the existing concrete pavement with bituminous asphalt pavement per resolution 07-022 and the Council's decision after reviewing the Street Reconstruction Task Force report presented at the November 13, 2007 City Council Meeting. The proposed typical section is shown on Figure 8 in Appendix A. 4.5 Permits and Approvals Reconstruction of the roadways will disturb over one acre and will require a National Pollution Discharge Elimination Systems (NPDES) General Storm Water Permit (MNR 100001) that must be obtained by the City of St. Anthony Village from the Minnesota Pollution Control Agency (MPCA). The reconstruction of the existing watermain will require a permit fro n the Minnesota Department of Health (MDII). The reconstruction will also require a permit from the RCWD. This may require stormwater treatment for the runoff from the project area which is proposed at Central Park. 4.6 Detour Routes The project will require significant excavation and the disposal of unacceptable material from the existing street area as well as a supply of significant volumes of select granular base, aggregate base, and bituminous pavement materials. This effort will require closing the roads under construction and increasing loaded truck traffic on the streets adjacent to the construction area. Adequately signed detours will be identified to direct traffic around the construction zones and notify users of the increased truck and construction activity. In order to accommodate the property owners along the excavated roads, temporary parking on the adjacent streets may be necessary during the periods when vehicle access is not possible. 2014 STREETAND UTILITY IMPROVEVILM PROJECT 1"EASIBILI7'Y REPORT CPPV OF ST. ANTHONY VILLAGE NSB PROJECP NO. 1626-82 TABLE OF CONTENTS PAGE 29