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Memo to Planning Commission/OA 98-2 <br /> July 28, 1998 <br /> Page 2 <br /> • Setback Requirements From property Lines <br /> Ramsey underlying zone requirements <br /> Brooklyn Park underlying zone requirements <br /> Brooklyn Center underlying zone requirements <br /> Minneapolis underlying zone requirements <br /> Bloomington underlying zone requirements & a 4 foot setback for every <br /> one foot tower height in residential zones <br /> Richfield underlying zone requirements & a setback L5 times the <br /> tower height in residential zones <br /> Chanhassen underlying zone requirements & and a setback equal to <br /> the height of the tower in residential zones <br /> Rosemount height of tower or within 500 feet of a residential <br /> structure <br /> Setbacks could be used to help direct towers to areas of the city that are best <br /> suited to accommodate them. Having setbacks equal to the underlying zone <br /> requirements in industrial areas would encourage cellular providers to locate <br /> towers in industrial districts, while making it more difficult to find a site <br /> large enough to meet the setback requirements in residential and commercial <br /> areas. <br /> • Cellular providers are claiming that towers do not fall over but bend and <br /> collapse at certain stress points. Engineered fall zone analysis conducted by a <br /> qualified structural engineer should be included with each application. This <br /> report would specify in writing that any collapse of a tower would occur <br /> within a specified fall zone within a lesser distance than the setback. <br /> Recommendation <br /> Suggested new setback requirements in industrial zones are 30 from the <br /> front property line, 25 feet from the side property line and 20 feet from the <br /> rear property line. Setbacks in all other zones and from any property line <br /> abutting a residential use be the height of the tower. These setbacks would <br /> help direct towers away from residential areas to sectors of the city that are <br /> more suitable for telecommunication towers. To verify the tower will not <br /> collapse over the property line, an engineered fall zone analysis documenting <br /> that any collapse of a tower would occur within a specified fall zone within a <br /> lesser distance than the setback will have to be provided. <br /> • <br /> \\elkriver\sys\shrdoc\planning\scott\oa98-2.doc <br />