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VECTDR <br /> E C"I G I t`1 E E R S <br /> Project Number:U2350-943-231 <br /> April 28,2023 <br /> ACOM Consulting,Inc. <br /> 5200 SW Meadows Road,Suite 150 <br /> Lake Oswego,OR 97035 <br /> ATTENTION: Rick Matteson <br /> REFERENCE: SEA Dagmar <br /> 1871 Ross Ave.,Everett,WA 98205 <br /> Antenna Mount Design <br /> Dear Rick, <br /> Per your request,we have reviewed the construction drawings prepared by your office for the proposed antenna and <br /> auxiliary equipment modifications,which include the addition of(2)microwave antennas and(1)ODU unit on(2)new <br /> antenna ballasted sled mounts on the concrete roof of the existing equipment shelter at the site listed above. In addition, <br /> we have reviewed the as-built drawings for the equipment shelter prepared by Fibrebond(Drawing No.:D-9700, <br /> Dated:February 26,2014). Please be advised as follows: <br /> Based upon our calculations and review of the documents noted above,we conclude that the antenna sled mount <br /> assemblies,as shown in the construction drawings,are adequate to support the loads associated with the proposed <br /> antennas and auxiliary equipment. Supporting calculations for the gravity and lateral loading on the proposed <br /> antennas,and an analysis of the capacity of the mounts are attached. <br /> The recommendations above are provided based upon calculations prepared by our office and information the client <br /> provided.A representative from Vector has not visited the site.The analysis and conclusions described above are limited <br /> to the members included in this report only and are based on the assumption that the supporting structure was properly <br /> designed and constructed,and has been properly maintained. Analysis of the existing equipment shelter is not part of the <br /> scope of this project.Vector Structural Engineering makes no claim as to the correctness of the original design or the <br /> current condition of the structure,which is assumed to be in good condition,free of damage or deterioration. The <br /> contractor shall verify the condition of the existing structure and shall notify Vector immediately should any damage, <br /> deterioration or discrepancies between the as-built condition of the existing structure and the assumed condition described <br /> in this report and on the construction drawings be found. <br /> We hope this meets your needs. If you have any further questions regarding this matter,please call this office at your <br /> convenience. <br /> Very truly yours, <br /> VECTOR STRUCTURAL ENGINEERING,LLC <br /> " " <br /> ND If0 <br /> Wells L.Holmes,S.E. '* f� <br /> 40/ <br /> 47 Project Engineer =r <br /> WLH/chk O,� <br /> `1''prONALOt <br /> Enclosures <br /> 04/28/2023 <br /> 651 W Galena Park Blvd,Suite 101/Draper, UT 84020 T(801)990-1775 F(801)990-1776/www.vectorse.com <br />