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

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City Code ?~quires 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 municipai water and sewer. The Park and Recreation Commission reviewed the proposed Rivenwick 3rd 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 (WMO). 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 2 over story trees, 2 evergreen trees, and 2 under stow trees per 100 feet of property abutting the adjacent R-1 district. In this case, the development would be required to 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 consist of, and how the increase in traffic would affect the intersection of Riverdale Drive and Garnet Street. · The Planning Commission tabled the item on September 5, 2002 and directed staff engage the services of a consulting firm to conduct a traffic generation analysis for the proposed development, discuss with the developer the cost of upgrading the existing signals on U.S. Highway #10 and how the cost is tO be distributed, and provide clarification on how the existing berm will be maintained, The Planning Commission met on October 10, 2002 and continued to review the proposed Rivenwick 3rd Addition development. There was no citizen input during the continuatiOn of the public hearing. Staff engaged the services of SRF to complete a traffic generation analysis for the proposed development. The traffic generation analysis concluded that all key intersections with the exception of Sunfish Lake Blvd and Highway #10 will operate at acceptable levels of service with full buildout of the proposed development. The intersection of Sunfish Lake Blvd. and Highway #10 is scheduled to be improved with dual southbound left turn lanes and separate left turn, through and right turn lanes on the northbound leg. The poor level of service at this intersection is due to the general increase in traffic on Highway #10 and not solely based on the proposed townhouse development. 68- ~