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0 105 E.Jefferson Blvd <br /> Suite 525 <br /> South Bend,IN 46601 <br /> N E L L 0 Phone: 574-288-3632 <br /> Fax: 574-288-5860 <br /> www.nelloinc.com <br /> March 11th,2016 <br /> Bug Tussel Wireless <br /> 130 E. Walnut St. Suite 509 <br /> Green Bay,WI 54301 <br /> Re: RFQ 59464-Proposed 300'Nello Guyed Tower(4 carrier) <br /> To Whom It May Concern: <br /> This is regarding your inquiry about the expected performance of your proposed 300'Guyed tower located in Dane <br /> County, WI that will be quoted by Nello Corporation. <br /> Our towers are designed to meet or exceed industry standards defined by TIA/EIA-222-G,"Structural Standards for <br /> Steel Antenna Towers and Antenna Supporting Structures"(EIA Standard). It is our opinion that the possibility of a <br /> tower collapse is very unlikely.The tower is designed using extreme wind and ice conditions. In fact,wind speeds <br /> specified by the EIA Standard are 50-year wind speeds.That is,they have only a 2%statistical chance of occurring <br /> in any given year. Furthermore,the tower is designed with extra factors of safety so that it would not be near a <br /> failure point even if the wind conditions were at their maximum design level. <br /> This tower will be designed using the following wind conditions as a minimum: I)a 90mph 3-second-gust wind <br /> speed with 3/4"ice.The EIA Standard specified 90 mph as the wind speed required for Dane County, Wisconsin. <br /> The"3-second-gust wind speed"refers to a wind measured at 33 feet above the ground. Equations in the EIA <br /> Standard take into account that the wind speed escalates with the increasing height of the tower. <br /> Although we cannot guarantee exactly how a tower would fall if it were to fail,the most likely mode of <br /> failure will be a buckling failure of one of the tower sections due to excessive compression loading. We <br /> will design the structure to stay within a fall radius of 180 feet in accordance with all TIA/EIA-222 Rev G <br /> standards and the current IBC standards that apply. <br /> We hope this has given you a greater degree of comfort regarding the design of your structure. If you have any other <br /> questions or concerns regarding our designs,please contact me by phone at 574-288-3632. <br /> Sincerely, <br /> utrrL49K���//•. <br /> Jaso .. ambe 'JAS <br /> Vic 'resident of Engineering _ i A!y1gEBr <br /> Nello Corporation ='C7 E-42184-6 <br /> MAR 1 1 2016 <br />