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Y <br /> Date: March 10, 2016 INERTICAL <br /> Wc1ligti <br /> Raymond Nunez Vertical Structures, Inc. <br /> Crown Castle 309 Spangler Dr, Suite E <br /> 2055 South Stearman Drive Richmond, KY 40475 <br /> Chandler, AZ 85286 (859)624-8360 <br /> (602)845-1729 ncoomes@verticalstructures.com <br /> Subject: Structural Analysis Report <br /> Carrier Designation: AT&T Mobility Change-Out <br /> Carrier Site Number: SN89 <br /> Carrier Site Name: Mukilteo Heights <br /> Crown Castle Designation: Crown Castle BU Number: 826263 <br /> Crown Castle Site Name: Norpro <br /> Crown Castle JDE Job Number: 366224 <br /> Crown Castle Work Order Number: 1203745 <br /> Crown Castle Application Number: 334177 Rev. 4 <br /> Engineering Firm Designation: Vertical Structures, Inc. Project Number: 2016-003-031 <br /> Site Data: 2215 Merrill Creek Parkway, Everett,WA, Snohomish County <br /> Latitude 47°56'32.81", Longitude-1220 15'42.95" <br /> 150.083 Foot-Monopole Tower <br /> Dear Raymond Nunez, <br /> Vertical Structures, Inc. is pleased to submit this "Structural Analysis Report" to determine the structural <br /> integrity of the above mentioned tower. This analysis has been performed in accordance with the Crown Castle <br /> Structural 'Statement of Work' and the terms of Crown Castle Purchase Order Number 880439. <br /> The purpose of the analysis is to determine acceptability of the tower stress level. Based on our analysis we <br /> have determined the tower stress level for the structure and foundation, under the following load case, to be: <br /> LC5: Existing+ Proposed Equipment Sufficient Capacity <br /> Note:See Table I and Table II for the proposed and existing loading,respectively. <br /> This analysis has been performed in accordance with the 2012 International Building Code based upon an <br /> ultimate 3-second gust wind speed of 110 mph converted to a nominal 3-second gust wind speed of 85 mph per <br /> section 1609.3.1 as required for use in the TIA-222-G Standard per Exception#5 of Section 1609.1.1. <br /> Exposure Category C with a topographic category 1 and crest height of 0 feet, and Risk Category II were used <br /> in this analysis. <br /> We at Vertical Structures, Inc. appreciate the opportunity of providing our continuing professional services to <br /> you and Crown Castle. If you have any questions or need further assistance on this or any other projects <br /> please give us a call. <br /> Respectfully submitted by: <br /> Nathan Coomes, P.E. <br /> Project Engineer <br /> tnxTower Report-version 7.0.5.1 <br />