Minutes - Council - 11/12/2002 - Laserfiche WebLink

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preliminary plat is proposing to development 112 townhouse units. The development contains an MSA road and, therefore, net area of the subject property is 16 acres. Net density for the proposed development is 7 units per acre; this complies with City Code. The development .is subject to site plan review for architectural standards, landscaping, unit size, streets, and screening. As outlined in the preliminary plat, Outlots D and E of the original Rivenwick subdivision were platted to represent the anticipated alignment of Riverdale Drive. The developer is proposing to shift the proposed Riverdale Drive alignment to the north in order to provide a public street through the proposed townhouse development. Property located south of Outlot E and D is zoned R-2, property located to the north is zoned B-1 Business. The proposed realignment of Riverdale Drive to the north results in a small portion of the project area being zoned B-1 Business. The portion of the property zoned B-1 Business will need to be rezoned to R-2 Medium Density Residential in order to facilitate the proposed townhouse development. The Planning Commission recommended that the City Council approve the rezoning request at their October 10, 2002 meeting. The townhouse units will front onto private streets. The private streets will provide access to 138th Avenue, which provides access to Riverdale Drive. Riverdale Drive is proposing to connect to Highway #10 and'to Garnet Street. City Code requires a minimum of 40% open space, 10% of which must be identified as a common area for use by residents of the development. The development exceeds open space requirements. The development will be serviced by municipal water and sewer. The Park and Recreation Commission reviewed the proposed Rivenwick 3ra Addition at their August meeting. The Park Commission is recommending an 8-foot trail along Riverdale Drive extending from the western boundary line to Garnet Street. The trail will continue to extend along the northwest side of Riverdale Park to the eastern edge of the park. Park dedication is recommended to be satisfied by a cash payment. The project is subject to the review and permitting process of the Lower Rum River Watershed Management Organization (LRRWMO). MnDOT requested that the City look at how the traffic noise generated from U.S. HighWay #10 affects the proposed townhouse development. It should be noted that the closest townhouse unit to U.S. Highway #10 is approximately 750 feet. Staff engaged the services of SRF Consulting firm to verify what requirements, if any, should be taken to address traffic noise from U.S. Highway #10. SRF has concluded that no noise mitigation should be required as the traffic noise levels do not exceed MPCA standards. The proposed townhouse development is required to comply with the newly adopted Density Transitioning Ordinance. The developer is proposing to satisfy density- transitioning requirements by the Landscape Buffering option. The Density Transitioning Ordinance states that when an R-2 Medium Residential Development abuts a R-1 Single Family development, the developer must provide a 25 foot wide buffer, in common ownership, .with a minimum of two over story trees, two evergreen trees, and two under story trees per 100 feet of property abutting the adjacent R-1 district. In this case, the development would be required ~o provide 72 trees. An established berm is located on the subject property that contains approximately 344 established over story and under story trees. The berm and adjacent open space area significantly exceeds 25 feet and will be manicured and maintained by the Home Owners Association. The townhouse development significantly exceeds landscape buffering density-transitioning requirements. The Planning Commission held a public hearing and reviewed the preliminary plat on September 5, 2002. During the public hearing, a few citizens inquired about how the proposed ponds would be maintained, what the proposed tot lot would City Council/November 12, 2002 Page 11 of 22