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34 replaced to 35°i Avenue NE and additional catch basins will be added at the low point on Edward Street. The proposed storm sewer improvements also include water quality and filtration/infiltration improvements as necessary to satisfy the requirements of the Rice Creek Watershed. These improvements will likely take place within the storm sewer easement on the north side of 37" Avenue NE. Constructing a water quality system in this area will serve as a treatment system for the entire area bounded by Roosevelt Street, 37°i Avenue NE, Silver Lake Road, and a east/west line extending mid -block between 35°' Avenue NE and 36°' Avenue NF,. The proposed storm sewer improvements are shown on Figure 6 in Appendix A. 4.4 Street Reconstruction of the existing street is intended to improve the design strength of the pavement system and provide a street surface with an extended life for the City of St. Anthony Village. 36°i Avenue NE and Edward Street NE are proposed to be replaced at the current width of 30 feet from back -of -curb to back -of --curb, which allows for two 12 -foot driving lanes and 2 -foot reaction areas on each side of the street. After the subgrade excavation is completed in the streets, 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 7 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 10000 1) 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 from the Minnesota Department of Health. The reconstruction will also require a permit from the RCWD. This may require stormwater treatment for the runoff from the project area. 2013 STREET AND UTILITY IMPROVEMENT PROJECT FEASIBILITY REPORT CITY OF ST. ANTHONY VILLAGE WSB PROJECT NO. 1626-66 PAGE