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The new proposed tower would replace the existing tower. It would be <br /> constructed along side of the existing tower, approximately 20 feet from the base. <br /> When fully constructed, the antennas would be transferred from the old tower to <br /> the new tower and the existing tower would be taken down. <br /> Allied Tower has provided documentation in the submitted booklet on the fall <br /> radius of guyed towers, including ice fall. The report states that there have been a <br /> total of 14 incidents in the USA of tower collapses from weather conditions. From <br /> the information obtained by these falls, it's presumed that a tower of 750 feet in <br /> height would have a fall radius of 199 feet. Towers do not fall over but collapse <br /> on themselves. As for ice fall, the memorandum from Allied Towers states that <br /> ice heavy enough to do damage would fall within a radius of no more than 20 feet <br /> from the tower. <br /> Although the memorandums state that it is safe to place office buildings and <br /> parking structures beneath a tower of this magnitude, staff is still concerned about <br /> the safety and well being of the residents and business people who will be on this <br /> property from day to day. Falling ice from not only the tower but the guyed wires <br /> is of concern, even though the area is proposed to be fenced. Additionally, long <br /> range trail plans include a trail around Round Lake, including a portion through <br /> this property. If development occurs on the property, a pedestrian trail easement <br /> would be requested. <br /> h) Drainage,Wetlands and Floodplain <br /> The application proposes to enhance or restore the wetlands on the property back to <br /> their original state since they have declined as a result of unimproved roads and the <br /> pasteurization of horses on the property for some time. Three detention basins are <br /> provided to collect storm water runoff, designed to NURP standards so that the <br /> storm water is treated prior to discharge. By this proposal, the wetland on the west <br /> side of the property will be eliminated and mitigated at a ratio of 2:1. The <br /> mitigation area will be provided on the east side of the larger wetland and within the <br /> three retention basins constructed on the site. The larger wetland on the eastern <br /> portion of the site will not be disturbed with development. The applicant has <br /> prepared a wetland delineation report (Exhibit B). Approval of the plan, following <br /> City Council approval, will be required by Rice Creek Watershed District. <br /> Table 1: Summar <br /> G-B District Proposed G-B District Proposed <br /> Requirements Buildings Requirements Antenna <br /> Antenna <br /> Use Office permitted 100% Principal use Principal Use- <br /> 23%-50%total area Office not permitted <br /> Floor Area Ratio 0.5 0.36 N/A N/A <br /> Min.Lot Size 5 acres 17.09 acres N/A N/A <br /> Min.Building Footprint 20,000 sq.ft. 33,246 N/A N/A <br /> sq.ft.each <br /> Min.Landscape Lot Area 35% 58.4% N/A N/A <br /> Height 35 feet 56 feet each 75 feet 750 feet <br /> 5 <br />