Agenda - Council - 06/27/2006 - Laserfiche WebLink

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Rum River Prairie Final Plat Review June 23, 2006 2 of 5 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 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 vard, near the property line. Lots 1 & 3 Block 2 and Lot 8 Block 3 each require an additional tree to be installed. All lots need to show the plantings in the front yard. Comer lots should have one tree installed along both streets. Deciduous trees shall be at least one (1) inch caliper and coniferous trees shall be at least five (5) feet in height at the time ofinstallafion. All proposed species are appropriate for this site; however, a planting schedule, including not only common name but also Latin nomenclature, size, and root stock must be included as well as planting specs for both deciduous and cordferous types. Staff again recommends including some trees and shrubs in conjunction with the proposed berm along Armstrong Blvd, especially considering that the required landscaping (trees) needs to be shifted to the front of each of those lots. Vegetation will help buffer against noise and dust generated by traffic. A revised plan must be submitted that addresses the aforementioned issues. Wetlands: The wetland delineation report does not indicate that there are any wetlands on the Prairie Meadow site. Drainage and Grading: Some of the information required for the final grading plan has been included in the submittals on sheets entitled Street & Stonnwater Plan. This information should be included on the final grading plan. Staff offers the following comments in reviewing both the Grading Plan and the Street & Stormwater Plan: · Topographic information needs to be extended a distance of 100 feet beyond the limits of the plat. This information should be added for the property north of Outlot A of Kelly Acres. · The normal water level and 100 year flood elevation needs to be identified for each pond and natural waterbody within the subdivision. The 100 year flood elevation for this subdivision needs to accommodate back to back 100 year event, since there is no outlet for stormwater generated in this development. The ponds north of 171st Avenue and west of Wolverine Street need to be labeled and encumbered with drainage and utility easements, · Pre and post runoff calculations have been submitted. This information will be reviewed by the Lower Rum River Water Management Organization (LRRWMO). A permit must be obtained from the LILRWMO for this development. -264-