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CITY OF ARDEN HILLS <br /> Qo� 4364 WEST ROUND LAKE ROAD <br /> ARDEN HILLS, MN 5511275794 <br /> December 13, 1999 <br /> Dan Vaughan <br /> Arden Towers,Inc. <br /> 3440 Bayside Road <br /> Orono,MN 55356 <br /> Dear Dan, <br /> The City of Arden Hills (City)wishes to Thank You for your engineering reports submitted <br /> on 11/29/99 from EEI (Ehresmann Engineering Inc.) dated 11/15/99 and 11/23/99,regarding <br /> the safety of your tower and its compliance with the State Building Code. <br /> Summarizing the first report dated 11/15/99 by EEI Engineering, the Tower does not meet <br /> State Code for %Z"radial ice and 80 mph winds,with reduction allowed. Further,the report <br /> indicates that conditions may be worse than the report states if the Tower has suffered any <br /> damage or corrosion and if a sub grade inspection reveals that it does not meet the required <br /> minimum capacity. <br /> The second engineering report submitted by EEI engineering, dated 11/23/99,was done <br /> without any calculations for%z"radial ice. <br /> Summarizing the engineering report dated 11/23/99 (analysis with out radial ice)many <br /> questions remain as to the current safety of the Tower even without including %z"radial ice. <br /> It also appears not all information given to EEI engineering has been correct, (i.e. feedlines) <br /> and the Tower has more loading on it than originally designed,plus a foundation that is <br /> overloaded from what it was originally designed for. <br /> In conclusion,based upon all of the information that has been submitted by you to the City, <br /> Staff believes there is sufficient information to deem the Tower an unsafe structure <br /> according to the State Building Code. Without question, the Tower does not meet State Code <br /> when including %2"radial ice. It appears the Tower was never designed to be able to <br /> withstand %2"radial ice even though it was a requirement at the time the Tower was built. <br /> The Tower was built in 1981, and the requirement to include %"radial ice went into effect in <br /> September of 1980. <br /> There also have been many additions/alterations to.the Tower over the years that have been <br /> done without Building Permits or amendments to the Special Use Permit(attached) as <br /> required by State and Local laws. These additions have substantially increased the loading <br /> over what the Tower was originally designed for,which in turn has made the Tower even <br /> less safe with each and every addition. <br /> PHONE: (651) 633-5676 • FAX (651) 633-7839 <br />