2320 CALIFORNIA ST T MOBILE ANTENNA 2022-01-25

ECTOR E n G 1 in E E R s Project Number: Ul 194-800-151 December 15, 2015 Centerline Solutions 3322 South Bay Road NE Olympia, WA 98506 ATTENTION: Bryan Underhill REFERENCE: SE01511A — Broadway Everett / SnoPUD 2320 California St. — Everett, WA 98201 Structural Review of Proposed Antenna and Equipment Installation Dear Bryan, Per your request, we have reviewed the construction drawings prepared by your office for the proposed removal of (3) existing panel antennas and the addition of (3) new panel antennas and (3) new FRLBs attached to the structure of an existing building. We have also reviewed as -built drawings of the existing antenna mounts and equipment prepared by B. J. Thomas, P.E. (Project: SE01511A Broadway Everett/SnoPUD, dated December 4, 2013) and site - walk photographs provided by your office (dated September 13, 2013, September 29, 2015 and October 27, 2015) . Please be advised as follows: Based upon our calculations and review of the documents noted above, we conclude that the proposed antenna mounts, as shown in the construction drawings, are adequate to support the loads associated with the proposed equipment. Supporting calculations for the gravity and lateral loading on the proposed equipment and an analysis of capacity of the mount components to support the proposed loading configuration are attached. The loads associated with the proposed equipment is minor compared to the original loading on the existing structure and will not significantly affect the existing building. The recommendations above are provided based upon calculations prepared by our office and information the client provided. A representative from Vector has not visited the site. The analysis and conclusions described above are based on the assumption that the structure was properly designed and constructed. Vector Structural Engineers makes no claim as to the correctness of the original design or the current condition of the structure, which is assumed to be in good condition, free of damage or deterioration. The contractor shall notify Vector Structural Engineers immediately should any damage, deterioration or discrepancies between the as -built condition of the existing structure and the assumed condition described in this report and on the construction drawings be found. We hope this meets your needs. If you have any further questions regarding this matter, please call this office at your convenience. � Very truly yours, 'P�;104e�� VECTOR STRUCTURAL ENGINEERING Roger T. Alworth, S.E. Principal RTA/Irg Enclosures 12/11/15 EXP.1/27/16 9138 S. State St., Suite 101 Sandy, UT 84070 1 T (801) 990-1775 (801) 990-1776 / www.vectorse.com