Agenda - Council - 04/10/2006 - 04/10/06

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Rum River Prairie Preliminary Plat Review February 28, 2006, Revised April 5, 2006 2of4 Existing Structures: It does not appear that any existing structures will remain on the proposed plat. If any structures shall remain, please submit a revised site plan indicating the location of these structures. Landscaping and Tree Preservation Plan: A landscaping and tree preservation plan, dated March 13, 2006, has been submitted. Existing trees on the property are few in number and mostly consist of Siberian Elm, an undesirable species. Neither the species nor location of those trees being preserved warrants credit toward the required number of plantings. Each lot is required to have a minimum of two (2) trees installed in the front yard, near the property line. Lots 1 & 3 Block 2 and Lot 8 Block 4 each require an additional tree to be installed. Comer lots should have one tree installed along both streets. Deciduous trees shall be at least 9n¢ (I) inch caliper and coniferous trees shal! be at least five (5) feet in height at the time of installation. All proposed species are appropriate for this site. Staff recommends including some landscaping in conjunction with the proposed berm along Armstrong Blvd. Landscaping would help buffer against noise and dust generated by traffic. A revised plan must be submitted that addresses the aforementioned issues and includes the size of the planting stock. Wetlands: It does not appear that there are any wetlands on the Rum River Prairie site. Drainage and Grading: A revised drainage plan has been submitted. A building summary has been submitted showing lot, block, lowest opening and floor elevations, garage opening, 100 year flood elevation pond wetland, centeriine elevation; front yard slope (%), rear yard slope (%) and a list of the lots require grading certificates. Staff needs to verify that the 100 year flood elevations shown on the plan represent the conditions for back to back 100 year flood events since this development is a landlocked basin. The city must also verify that the calculations do not anticipate infiltration which is not allowed in the determination of the flood event. Stormwater calculations must be submitted to the Lower Rum River Water Management Organization (LRRWMO) for review and approval. A NPDES permit is also required with a courtesy copy of the permit sent to the City of Ramsey. Streets and Access: A reconfiguration of Wolverine Street has been explored, and due to wetlands to the north of Kelly Acres, the proposed street configuration is acceptable. Sidewalk~: The revised street plans indicate the construction of sidewalk along the west side of Wolverine Street, the north side of 170th Avenue, and the west side of Tiger Street along the extent of the Rum River Prairie plat. After further review, the City is requiting the construction -183-