1100 Diffley Rd - AntennasC!tyofEaali
3830 Pilot Knob Road
Eagan MN 55122
Phone: (651) 675-5675
Fax: (651) 675-5694
Use BLUE or BLACK Ink
Permit #: / q--6 j _3
Permit Fee: t 7L '7 I
Date Received:
Staff:
2010 COMMERCIAL BUILDING PERMIT APPLICATION
Date: 6/11/10 Site Address: 1100 Diffley Rd., Eagan, MN 55122 (MN-MSP0050)
Tenant Name: Clearwire Wireless
J
(Tenant is: x New / Existing) Suite #:
Former Tenant:
PROPERTY OWNER
Name: City of Eagan
Address / City / Zip: 1100 Diffley Rd., Eagan, MN 55122
Applicant is: Owner Contractor
Phone: 651.675.5635
TYPE OF WORK
Description of work: Adding antennas / microwave dishes to existing water tower
Construction Cost: $8,000.00
CONTRACTOR
Name: Vertical Limit Construction License #: Commercial
Address: 825 3rd Ave. City: Wanamingo
State: MN Zip: 55983
Phone:
507.824.1404.
Contact: Scott Shepard Email:
ARCHITECT /
ENGINEER
Name: WT Communications
Address: 2675 Pratum Ave.
State: IL
zip: 60192
Registration #: 26633
City:
Hoffman Estates
Phone: 224.293.6413
Contact Person: Tim Kuen Email:
Licensed plumber installing new sewer/water service: Phone #:
CALL BEFORE YOU DIG. Call Gopher State One Call at (651) 454-0002 for protection against underground utility damage.
Call 48 hours before you intend to dig to receive locates of underground utilities. www.gopherstateonecall.ora
I hereby acknowledge that this information is complete and accurate; that the work will be in conformance with the ordinances and
codes of the City of Eagan; that I understand this is not a permit, but only an application for a permit, and work is not to start without a
permit; that the work will be in accordance with the approved plan in the case of work which requires a review and approval of plans.
x
(Y' I3 r' Q in k
Applicant's Printed Name
01/c-n/yl
Applicant's Signature
beo„r (ekeSS
Page 1 of 3
SUB TYPES
Foundation
Apartments
Lodging
Miscellaneous
WORK TYPES
V New
Addition
Alteration
Replace
Retaining Wall
DESCRIPTION
Valuation B OGO
Plan Review ✓
(25 % 100% ✓ )
Census Code
# of Units
# of Buildings 1
Type of Construction
Interior Improvement
Exterior Improvement
Repair
Water Damage
REQUIRED INSPECTIONS
V Footings (New Building)
_ Footings (Deck)
Footings (Addition)
Foundation
Drain Tile
Roof: _Decking _Insulation _Ice & Water _Final
_ Framing
Fireplace: _Rough In Air Test
Insulation
Meter Size:
DO NOT WRITE BELOW THIS LINE
Public Facility
Commercial / Industrial
g reenhouse / Tent
Antennae
Final
Occupancy
Code Edition
Zoning
Stories
Square Feet
Length
Width
Siding
Reroof
Windows
Fire Repair
l� MCES System
2007 I11584. SAC Units
ct
Final CIO Inspection: Schedule Fire Marshal to be present: Yes /No
Reviewed By: /P" 4$' Building Inspector
COMMERCIAL FEES
Base Fee /G7 .2-r
Surcharge 4. D e
Plan Review / o '7L
MCES SAC
City SAC
S &W Permit & Surcharge
Treatment Plant
Treatment Plant (Irrigation)
Park Dedication
Trail Dedication
Water Quality
Accessory Building
Exterior Alteration - Apartments
Exterior Alteration - Commercial
Exterior Alteration - Public Facility
Reviewed By:
_ Demolish Building*
_ Demolish Interior
Demolish Foundation
Salon Owner Change
*Demolition of entire building - give PCA handout to applicant
City Water
Booster Pump
PRV
Fire Sprinklers
Sheetrock
Final / C.O. Required
Final / No C.O. Required
Other:
Pool: Footings Air/Gas Tests _Final
Siding: _Stucco Lath Stone Lath _Brick
Windows
Retaining Wall
Erosion Control
Water Quality
Water Supply & Storage (WAC)
Storm Sewer Trunk
Sewer Trunk
Water Trunk
Street Lateral
Street
Water Lateral
Other:
TOTAL 2-7/ . 71
Planning
Page 2of3
M s Leslie Freer)
- T fs Ciroup
267 ?return Avenue
IIof man Estates, IIlmuis 60192
W.W.I' 'l Ornamental R e ery
1 -ire Site: MN -MSPO 5
Dear Leslie,
The utak s very lar gea rt'sde
'I ; pal i as
mounte4 on pc
report fo :t
Existing ing
sheet five. if
the watq hive
vddcd to
lowered.
i. Hence, the eombiried aria wind load does not over
are mounted
supported by the
ja unted antennas.
if you hay any° question € r recd additio
Robert S
March 6,2010
is overned by h, drost
Posy lt:hed to
ail. A welded and bolted detail
4 and 4a.
typical .cable support desi
equired to match the she
oy twer, if
vatcr level does
than Id r dead
e nr ouns tion.
Job 'Lisle
ent Title:
l2eg strat on:
Bow Teo
936 Lund
Batavia, IL 60510
Over 30 : ears wit
Development and Consu
President Bow Tech.
- American S
- American
- Earthquake
ROBERT
S. N O
EXPERIENCE
SUM.M.
MARCH, 2010
Phone: 6.70-41-06-; 372
E - mail: blwomiakaao
FAX: Cali for co
=orlung vrith the Chief Structural Engineer m
g (R tired November, 1990)
991 to present (19 Vet
Professional Engine
- Structural Engineer
- Professional Engineer
- Professional Engineer in Calif°
- Structural Authority in. California
Eaitee
rs
tin
Research Inst
Lie. 062 -247
Lie. #g 1 -3
Lie. 53699 -E
#032564
Lie. 4246
Current Committees: u ANWA (Arne
.l) "Task 1
- Combined A - API
:onus ittees: Advisory Committee on Secs
Storage Turks (Berkeley, ley, C
- Advisory Comn ttee on Anal
University) (1968- 1974).
- NRC Subcommittee on Earthquake I:'n.gine
Interaction of Structures and Fluids - l 9S
- Design and cunsuU ttion on speciKI desigt , seise is and
code itrterprctat ons, failure investigations, special- design°
elevated and ground supported tanks, antennas and stacks.
- Strong background in practical (application) design of ground storage
and ik }fiatvd storage tanks and industrial structural systems for seismic
loads, Seismic designs include AW\VA, LBC and API Bode rules.
h Progra
S'.
IBC. 2000.
on Liquid Filled
S hell Attnclnnelts (Washington
Seismic
Discuss
Geno
T.
ti.c rci:+r�sr =srh. azt
TABLE CONTENTS
4 G ORNAMENTAL ERVOIR
.ARW RE SITE M - M P € 5
EAG N, MINNESOTA
LEEXLNGTON & DIFFLEY ROADS
A% ' Cold NVeather 'gilding Reg u rcntents.
)esgn
ad orison
Antenna lzxatallation Wind Loads
Dish Ant Roof Support With Brae
Antenna S pp rrt Wokled or Bolted)
Cable Support ° Details on Tank Pilaster
Tank dapping Stitches .. .
Appendix A;
Antenna Cut Stets ,
anon
... ..... ..,3
4-4a
6-10
A4-A5
A6
4.0MMC ORNAMENTAL RESERVOIR
ROOF & PILASTER MOUNTED ANTENNAS
CLEARWTRE SUIT: MN-1SP0050
EAGAN, MINNESOTA
LEXINGTON & DTFFLEY ROADS
The subject t.ank is a 4.0MMCi ornamental resavoir built by an Brown Minneapolis Tank Co. in
19R9. The tank shell has been designed to the AWWA App. C high strength section of the standard.
A field mapping of the tank and antennas was provided by W-T Communications Group. No as built
drawings were available. Unless noted otherwise, it is assumed the tank is as shown by the
inibrmatiort and mapping provkle.
Cleanvire proposes to mount three dishes on the roof personnel handrail and three panel antennas on
the shell or pilasters. There are several other carriers mounted on the tank. The roof handrail is
tribraced, but requires bracing for the dish antennas.
l'hc shell is a special high strength material so welding directly to the shell is not reccumiended,
However, since this tank has 10 pilasters,. ate antennas can be mowted 011 The pilasters and the cables
can be routed down supports welded to the pilasters. Doing so avoids the requirements of matching
the pad plate to the shell material and lowering the water level 21 below the point of welding.
The tank design 'wind force is much greater than the wind load on the antennas. The combined
ante wind force adds 3,6% to the tank wind Ihroe. The tank shell does not experience - - t
additional wind stress when the combined auterma wind loads are included. The antennas and their
supports are designed for a 100 mph wind velocity- The dish antennas are located on the roof at an
elevation of 77+1- and the panel antennas are mounted •on the shell 6441- above the top of the
foundation. The tank shell design is governed by hoop stress from the water pressure.
Antenna Mounts;
The antennas are mounted on posts attached to the handrail, see sheet three. Bracing of the handrail
is required to resist the twist load on the handrail. Antennas can be attached to the posts with
standard U-bolt, &turps.
Gab," components are not recommended if they an, to be welded since gtdvanizing can cause
cracking due to zirtc emblittlement. Where galvanized ConliMentS are specified, the surfaces must
be ground clean of galvanizing before welding. If components are bolted or clamped, there shotikl
be no problem with ,galvaniz.* ing
Observation ;
The tank is 21 years old, The paint system should not contain lead or other heavy metals.
Environmental requirements must be met for containing hazardous dust and protecting workers from
exposure.
Co-axial cables can be routed down the side of the pilaster as. shown on sheet four. Since the shell
is a high strenehrnaterW, the sweial requirements %r welding can be avoided by restricting welding
to the pilaster. The cables should be supported by I-hooks at the top of the shell and supported at
4° intervals on the .roof and pilaster.
A list of general notes is included on sheet iii which summarizes good practice requirements. These
should be included ori the antenna drawings or in instmetions to the contractor. The AWWA cold
weather welding requirements are included on sheet iv.
w-t-cagantloarkvirt-rooashc11-1 nureas..wpdiC 1
G27
err0:791 9'7
Hea:ftfa and Sa fety
Contractor shall provide :all safety c uiprraeni and fall proteetitrzt to
personnel during construction
Access to the tank interior water compartt en t ;hall not l perir
of the eater department supervisor. Precautions shy 1J be 1
urn
geakr xtapd
Gish an
surces
The paint .tem shall he c:her eked fbr lzsardous e
in the paint :s 'stem, the environment mid workers m
1 Welding
All welding shall in accordance with hW WA D100 See. ti, Welding and Sep l i, Inspection
and Testing..
Ids to the tank s
caf brine
A 1)100 require;
No welding shall be do when the arm
the requirernentc of AWWA D100, 0, Sec 1 C 2
. dicag: to the tank or coe
shall be drawn down to a le
We:11ding may c.aause blistering ofthe interior paint opt
should be touched up when the tank is taken out Of
paint dainagc shall be repaired after completion of the 833
a patible with the existing paint system,
Tubular coluinrs '
c. ircuenst83aces.
one
1 Trues
1be rdade of 70i8iowby
le welds shall be repaired as required to rsneet
s11 not be welded directly to
h'anizing before welding
�etici
t er lei el is not permitted, The water le
tout t ie approval
to prevent water
D'.
cr
paint
ion.
i d shall be
d and anust not be bread ed (purzotured) under any
Stud Velding
Stud welds are a viable alternate for welding, but are exclud; d by the code since ater under
the pad plate can trigger corrosion antd streaking of the tank :shell. 11owel, ifnccepted by
the tank owner, studs can be used ira lieu ofweldu. Studs must he installed and tested to
the stud manufactun-r's spoci i cai
SEC. 10: ERECTION (COLD WEATHER WELDING S 10.11)
Sec, 10.2 Welds
eieeireiewpd
See. 10,1 General
The constructor shall furnish all labor, liability aad compensation insurance, tools, false work,
scaffolding, and other equipment necessary to erect the tank in compliance with the contract
rNuirements. ,
All welds in the tank and structural attachments shall be made in a Dianna TO ensure complete fusion
with the, base metal, within the limits specified Ibr each joint, and in strict accordance IA ith the.
qu,alified welding procedure specifications,
10.2.1 Weeziher and tempetuture conditkots. Welding shall not be performed wheat the sittfaces
of the parts to be welded are wet from rain, snow, or ice; when rain or snow is falling on melt
surfaces; er- during periods of high winds, unless the NV ekter or welding operator and the work
f• re property protected.
Welding shall not be performed ' the base metal temperature is lower than 32 deg. F
(0 deg. C) unless the base metal within a dig' tance of four times the plate thielutess (3-in. j76-
innel minitnum) a the place where welding is to be started is preheated to at least 100 deg. F
(37.8 deg. 1) and this temperature is mai for the distance ahead tit' the arc set forth
above as welding pratgresses.
It is mommentled that no welding be done when the base metal temperature falls below
0 deg. F (-18 deg. C). If welding is to be performed when the base metal temperature is lower
than ft deg. F (-18 deg. C), the following spetial requirmnents are to be met;
le Low-hydrogen electrodes or Icov-hydrogen welding shall be used.
2.The base metal along the length of the weld joint in the direction of welding shall be
preheated M 200 deg. F (93 deg. C and maintained as welding progresses for a distance of at
least 36 in. (914 mm) from the point of welding or the entire weld joint length, whichever is
less. In addition, the area extending on both sides of thc weld joint a distance °flour times the
plate thickness, but not less than 3 in.(76 mm) or more than 6 in.(152 inm), shall he preheated
to arid maintained at 200 deg. F (93 deg. C) during welding.
10.22 Feeling. Peening of weld layers may he used to prevent undue distortion_ Surface kayers shall
not be peened.
1022.1 Peening shall be performed with light blows from a power hammer with a blunt-nosed tool.
10,2.3 Contour The surface beads shall merge smoothly into each other in all welds.
10.2.3.1 Undercutting of be metal in the plate adjoining die weld shall be repaired, except as
permitted in Sc. 11.4.2,1, Sec. 11.4.2.2, Sec. 11.4,2.3, and Sec. 11.4:2.4.
10.2.3.2 All craters shall be filled to the full cross of the weld.
iv
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Eagan Te}ecommunIcation Antenna Base Inventory
I ifft Cvr)f. t LK=
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hard=
Larington Tower; 11 *J Difflay Road
Ltatin
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LX406 blizasmoNAL SCADA
LX1 00 PANEL GELL
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LXI 03 PANEL cELL Active 5025 1,055.05 LEASP 04 02/n2010
LX244 PANEL CELL Active 029,16 1,03019 LEASE 04/91 03
t,*(16 PANEL CELL Active 319.46 1139.99 1 EASE 04)01 /ZOO COM LEVI
t PANE1 QELL Activz 201.44 1,153,50 LEASE awirzoda tyar41un1t1
LX:397 PANEL CELL Active 212.87 1 ,953.19 LEASE 04101 030
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[X11 PANEL CELL. Active 14,94 1 AMENDMENT 10(152005 1 W14,12911
. - — —
LX1 02 PANEL CELL Actve 103 1,056.48 AMEN MEN I 101152096 104/2011
L)�4 PANEL CELL Mime 254. i 6 1,050.31 AmEmDmENT 10/1E2009 I OM At291 i
1%096 PANEL CELL Actiw "280.05 1,05037 AMEND9 IENT 10115.1005 1 arto7a11
LAERY PANEL CELL Aetive 141.33 1 MiE1 10115)2CM Ert42011
LX401 PANEL CELL AJve 12 1456,22 AmENDMENT 10'1512096 412011
LX201 PANEL
LX303 PANEL
11,12/2005
CELL Aciroe
LX402 PANEL CELL Act
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0034 t,af34.91
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34014 1,06417 LA3 15,2005
LY.202 PANEL. CELL Adige n131+ 14154A2 LF.AsE 0011 V2925
LX202 PANEL CELL Ar,tive 328,15 1„051,91 LEASE 03/15,
LX000 PANE. CELL Azthe 221.15 1.054,63 LEASE OM 512095
LX391 PANEL CELL Active 209.98 1,994,92 LEASE aStlEr2005
\ 1-- LXS07 PANEL CELL Active 209,99 1,054.00 LEAst.. 03110
CELL Active 234.99 1,0b4 LEASE 4.13/19m0135
LX403 EANE1 CELL Activa 1; 142 1.054,49 LEASE 03(16/2005
1 x PANEL CELL Active 1024T 1.,OC4S3 EASE 03/15f2t)05
LX 05 PAN CELL Active 9677 1.054,50 LEASE 83,19a305
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Wind Loadirig
Th e anL side, one tviitsrind reameni cr: flod tx4cw r® Inc Taxinan both applied id the ravve?..1 by b orlemo
Torvivoi wind5peed of 250 krr t.,135 tripq They ore thc,, 'csu of -wind from l'~ nicr,21 direction le eodl
pc:tor:04x, inclividua rr,oxitnLism may not oPzul 5irdionea.sly. Ad ore refereinired k t nien-a rftis pipe
AnenneJncIud Mount
Antonin withaur k, k g (lb)
Anienna w1111 12 min {1/2 In mdiol ke, kg
Antenna Pocked., Weights /Gross)
Weight kg Oh)
Oimenliers, un (in)
ANDREW.
Andrew arporotion
3 Wettiarack Cprperale Center
Sulk, no
hesier, IL 60154 U
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12.28{27)
24.7 (54)
19.42 (43)
Packed Antenna Dimensions (!ingle Unit Pack)
70 x 70x 50,27.5 27.5 22.0)
war Farris
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Milne ice, mm
X(G ',Ufa 12 mm (1,1 ia rariili ire, mm (in)
1066 N (210 it)
46H (111 bi
382 in fnz ib-ft)
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at
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Wind Loading
The acid, side, and twisting moment forces stated below re the maximum loads applied to the tower "enno or
survival windspeed of 250 ke,/}1 (155 rripH. They are the resuli of wind horn the most criiiool direction for each
parameter. The indivichrli maximums may n occur simullonsousy, faces ore referenced to he antenna rnountIng pipe.
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Fox: 14M349-S444
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Tolofkmanc 4-1-708- Br32307
fox: 14-779-435-15579
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4.0MMG STEEL TANK FBT104.DAT (E0717S) EAaAN TANK 3-6-10
DIAMER HEIGHT FREEBOARD NUMBER DESIGN PROD
(FT) .(FT) (FT) OF R:NGS WEIGHT(PCF)
12, 0.0 0 69.00 1.00 -9 62.40
PROD ALL B.P.YIELD CORP. ALL MIN TIIK ANNULAR PL CVARI
PSI PSI IN IN THK
18500.0 36000.0 .0000 -1.000 .250 0.
ROOF u ROOF CS TOTAL ROOF ID OUTER COL RAD DESIGN ,..,,,. - -E
-,
(PSE) (FT) (LBS) FT
13.000 3.50 1:1000,0 30.30
HOOP INC. COMP INC. BKLG CODE 218 P. STAB
CODE
:.330 1.330 0 0 2
TENSION HOO? STRESS SUMMARY
RING RING PROD. RING ********SEISMIC ******* TOTAL HOOP
NO. HT DFTH STATIC IMP. CONV VERT DYN THICK
(FT) (FT) (1.13/1N) tit ” IN
9 5.000 4.000 1040. 54. 72. 0 . 126. .2500
0 8.330 12.000 3120. 152. 54. 0. 206. .2500
7 8 .000 20.000 5200. 2 41. 0. 277. .2811
6 8.800 28.000 7280. 309. 31. 0. 339. .4000
5 8.000 36.000 9360. 367, 24. 0. 351. .5059
4 8.000 44,000 11440. 413. 19. 0. 432. .6184
3 8.000 52.000 13520. 445. 16 - 0. 11 61. .7308
2 8.000 60.000 15600, 465 14. 0. 479. .8432
1 8.000 68.000 17680. 471. 14. 0. 485. .9557
SHELL WT. EXCLUDES ROOF & BOTTOM
UPLIFT -43.285( LB/IN) TOTL SHL WT = 486190. ' B)
ANLHRD TOE PRESS- -233.4 (LB/IN) /7
VOL(GAI)= 3994849. VOL(BBL)= 95115. /
4
W -T COMMUNICATION DESIGN GROUP, LLC
April 19, 2010
Short Elliott Hendrickson Inc.
3535 Vadnais Center Drive
St. Paul, MN 55110
Clearwire Site: #MN- MSP0050
Address: 1110 Diffley Rd.,
Eagan, MN 55122
Attn: Daniel J. Zienty
RE: Structural Opinion Letter
I trust thi
ah , P.E
Ma - gin . Partner
Minnesota PE #: 26633
Exp. Date: 06130/10
2675 PRATUM AVENUE, HOFFMAN ESTATES, ILLINOIS 60192
(224) 293 -6333 FAX (224) 293 -6444
Dear Mr. Zienty:
Pursuant to your request referencing the Clearwire site #MN- MSP0222 noted above and
S.E.H. review letter dated April 8, 2010 we will address comment #2 with the following:
W -T sub - contracted Bowtech to perform a structural analysis on the water tank at the above
location. The analysis and details within report dated March 6, 2010 was performed in accordance
with AWWA D100 Section 8, Welding and Section 11 and Inspection and Testing. These codes
indicate that all attachments shall be welded in accordance to these codes to prevent the possibility
of rust streaking. S.E.H. has requested that the proposed antenna attachment to the handrail shall
be bolted with a prefabricated crossover plate. It shall also be noted that all new hardware shall be
painted to match the existing color of the tank. This bolt -on method is acceptable however it may
stand a chance of minimal rust streaking.
Based on review of the structural analysis and details within the W-T drawings dated April 19, 2010
it is our opinion that the handrail with crossover plate and mounting pipe attachment, supplemented
with the required antenna post reinforcement at points of proposed antenna..installation detailed on
sheet A-4 detail #2, the handrail is an acceptable application of . attachment and is capable of
supporting the proposed mounting pipe and antenna. Further it shall be noted that the
reinforcement kicker shall be stud - welded in lieu of full weldment all around the plate. Refer to
General Notes listed within above mentioned report for Stud weld recommendation comments.
er will meet your needs, if you have any questions please feel free to contact me.
PROFESSIONAL E .GINEER
I hereby certify that this plan, specification, or
report was prepared by me or under my direct
supervision and that I am a duly Licensed
Professional Engineer f ?der t' e laws of the
State of Minnesota.
1
Print Na "'�! t 9. f fis h
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Date se # 26633