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Date: November 28, 2017 DEC L, 2017 MORRISON HERSHFIELD
Mr. Michael Murray c Y CF , 4 o Morrison Hershfield
Crown Castle
MAC,. f � 1455 Lincoln Parkway, Suite 500
2055 S. Stearman Drive Atlanta, GA 30346
Chandler, AZ 85286 (770) 379-8500
Subject: Structural Opinion Letter
Carrier Designation: Verizon Wireless Co-Locate
Carrier Site Number: 172114
Carrier Site Name: POR Barrows
Crown Castle Designation: Crown Castle BU Number: 855864
Crown Castle Site Name: Scholls Ferry Beef Bend
Crown Castle JDE Job Number: 472523
Crown Castle Work Order Number: 1494305
Crown Castle Application Number: 416333 Rev.4
Engineering Firm Designation: Morrison Hershfield Project Number: CN4-226R2/ 1800030
Site Data: 17026 SW Friendly Lane, Beaverton,Washington Co.,OR 97007
Latitude 45°25'32.01", Longitude-122°51'7.53"
78.5 Foot—FWT Monopole Tower
Dear Mr. Murray,
Morrison Hershfield is pleased to submit this"Structural Opinion Letter" to determine the structural integrity of
the above mentioned tower. This analysis has been performed in accordance with the Crown Castle Structural
`Statement of Work' and the terms of Crown Castle Purchase Order Number 1111712, in accordance with
application 416333, revision 4.
The purpose of this opinion letter is to determine the suitability of the tower with the proposed and existing
loading as specified in Tables 1 and 2 on the next page. This opinion is consistent with the guidelines as stated
in the ANSI/TIA-222-G standard and the 2014 Oregon Structural Specialty Code (OSSC) based upon an
ultimate 3-second gust wind speed of 120 mph converted to a nominal 3-second gust wind speed of 93 mph per
section 1609.3.1 as required for use in the TIA-222-G Standard per Exception #5 of Section 1609.1.1. Exposure
Category C with a maximum topographic factor, Kit, of 1.0 and Risk Category II.
Based on a comparison of the previous' analysis loads (including wind speeds), the current loads and the
proposed loads, we have determined the tower structure and foundation ARE sufficient for the proposed
loading.
We at Morrison Hershfield appreciate the opportunity of providing our continuing professional services to you
and Crown Castle. If you have any questions or need further assistance on this or any other projects please give
us a call.
Respectfully submitted by: t --
Azz,cot.1 ,t
ff 58474
Shawn W. Stevenson, S.E. (OR License No. 58474)
Senior Engineer au Go
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'Refer to the previous structural analysis completed by Morrison Hershfield,Project No.CN4-226/6150003,Dated 02/03/2015
. 4
November 28, 2017
78.5 Ft Monopole Tower Structural Opinion Letter CCI BU No. 855864
Project Number CN4-226R2/1800030,Application 416333,Revision 4 Page 2
Table 1 -Proposed Antenna and Cable Information
Center NumberNumber Feed
Mounting Line Antenna Line
Antenna Model of Feed Note
of
Level(ft) Elevation Manufacturer Size
(ft) Antennas Lines (in)
60.0 60.0 1 1 RFS SC2-190BB 1 1 ? 1/2 --
Table 2-Existing Antenna and Cable Information
Center Number Number Feed
Mounting Lineof Antenna Antenna Model of Feed Line Note
Level(ft) Elevation Manufacturer Size
(ft) Antennas Lines (in)
83.0 2 Kathrein 1AP14/17-880/1940/065D/ADT/XXP
i w/pipe mount 1
1 1 Kathrein IAP14/17-880/1940/065D/ADT/XXP
i w/pipe mount
3 Lucent 3JR52703AAAA w/pipe mount
1 Kathrein 742-265 w/pipe mount
4 j Ericsson i KRY 112 13/1 1 1/4
4* Powerwave � LGP21401 1 3/8
82.082,0 ` 2 Powerwave TT19-08BP111-001 2 3/4 1
6 7/8
2 T Lucent RRH2X40-07-L 6 ' 1-5/8
1 Lucent RRH2X40-07L-AT
r 1 rRaycap DC6-48-60-18-8F
1 - Miscellaneous[NA 509-3]
1 - Miscellaneous [NA 510-1]
- Platform Mount[LP 1001-1]
81.0 2 Kathrein 742-265 w/pipe mount
3 Antel j BXA-70063/8CF w/pipe mount i
3 Antel j BXA-80080/8CF w/pipe mount
3 T CSS AXP18-80-0 w/pipe mount
CSS XP18-80-0 w/pipe mount
60.0 60.0 6 i Andrew 850/1900 DUAL BAND TMA 12 7/8 1
r 3 Ericsson RRUS 12 B4 1 1-1/4
r f-T Raycap - RCMDC-3315-PF-48
3 Rosenberger j FB-15-ABOX
3 - T-Arm Mount[TA 701-1]
37.0 1 T GPS GPS_A
36.0 36.0 1 - j LL Side Arm Mount[SO 701-1] 1 1/2 I 1
Notes:
1) Existing Equipment.
CUMBING PEGS
W/SAFELY CUMB
•
(INSTALLED) ——
(1) 1/2•TO 38 FT LEVEL / (PROP0SEO-TEMPORARY)
1 1/4•TO 82 FT LEVEL / N (1) 1/2'TO 60 FT LEVEL
1) 3/8'TO 82 FT LEVEL
2 3/4'TO 82 Fi LEVEL / \ + (1 7u%B(INSTALLED)
60 FT LEVEL.
6) 7/8'TO 82 FT LEVEL • / / — 1:\
1) 1-1/4'TO 60 FT LEVEL
(6) 1-5/8'TO 82 FT LEVEL C.:.
• / / \
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BUSINESS UNIT:855864 TOWER ID:C_BASELEVEL
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