www.agonic.com Larry Newman Jlgonic Corporation Ctmstruairm fft ConstructitJn !Maffi1{Jmln!t 410 Interchange Street McKinney, Texas 75069 Office (972) 569-8333 Fax (972) 569-8338 Mobile
(214) 886-4869 ,'. ,. wwW.agqriic.co.ri Har-oia·:JL Il~t-·. ~-.-·--.--. ·. ~onic Corporation ci;~iion &_Consirr~Ltion Morurstll0!1_ . _·.-.; ;; ,_ ·o=41_0:i~-~~-id,'~J~:-~e~t · --. ·
· ·: MCKin·ne~-kJ~_xas ·75069 Offic~ .(972)'569:8333 Fax.l97:n·.s69-8JJ8 -~ E~~iiil·h·a~~fd®·ago-nic.~om : 
GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Pbone 214-528-3796 e-mail: gunningcei@ao.l.corn BILL TO Town of Addison Mr. James C. Pie..::a,
Jr., P .E. 16801 Westgruve Drive Addison, lX 75001-9010 DESCRIPTION PROFESSIONAL SERVICES 2/1104 THROUGH 3/12/04 Bill L. Gunnin REIMBURSABLE EXPENSES 2/1104 THROUGH 3112/04 Auto Mileage
-one trip of 30 mi. --.. -------------Delivery Address: 3303 Lee Parkway, St.e. 325 Dallas, Texas 75219-5109 FAX 214-528-3797 -+---INV~ICE# 004 45100-04 . --.. PROJECT 1-------451 AddiSon
Airport Tee Hangers ... Q TY RATE AMOUNT ·-7 125.00 875.00 3 0 0.32li 9.75 -To tal $8B4.7li 
03/12/2004 09:29 2145283797 GUNNIN CONS ENGRS PAGE 02/03 GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phane 214-528-3796 e-mail: gunningcei@aol.com
March 12, 2004 Mr. James C. Pierce, Jr., P.E. Assistant Public Works Director Town of Addison 1680 I Westgrove Drive Addison, Texas 75001-9010 Re: Tee-Hanger Door Support Repairs Addison
Airport Addi$On, Texas Dear Mr. Pierce: Delivery Address: 3303 Lee Parkway, Ste. 325 Dallas, Texas 75219-5109 FAX 214-528-3797 This is to confirm your phone call to me yesterday. You
indicated that your Mr. Foster had come up with a better and less costly idea for the structural de.~ign of the door support repairs. You indicated that you wotlld not be using the designs
we prepared, nor would you be using our services any more for this project. As a courtesy, we call to your attention again the requirement that the connection must acconunodate at least
three inches of vertical movement. These considerations result from the geotechnical investigation that you commissioned. We wish you success with the pr~ect. and hope you will call
on us again as your needs for consulting structural engineering services require. Sincerely, GUNNIN CONSUL TJNG ENGINEERS, INC. bWJ~ Bill L. Gunnin, P.E. 
CJ)c~ <r::D cuo X I ~ ' ' C) cu ........ -0 ~ w (l) 0 (l) ~ 0 =s (l) Ol:C:S =s ~ CJ) 0 oo 0 c 0 (l) CJ)..Y 0 u ~ 0 0 ~ l.J+' (l) 0 -=s ~ l.J 0 0 (Y)~ 
AGONIC CORPORATION SUMMARY REPORT Bid Price 03/08/04 16:37 ver 1.0.3 Job 14014 ADDISON REVISED DOOR TRACK Page No. 1 CODE DESCRIPTION TAKEOFF UNIT-PRICE EXTENSION Division 05 METALS
~~"' 001 MOVE-IN 3.0 HR 86.667 260 002 SUPERVISION '12. 0 HR 66.417 797 004 GUIDE ROLLERS 12.0 EA 3.917 47 005 GUIDE TRACK 160.0 LF 3.106 497 006 2 X 2 ANGLE 200.0 LF 2.000 400 007 GUIDE
BRACKETS 12.0 EA 21.667 260 014 ERECTION LABOR 12.0 HR llO. 667 1,328 015 SKY TRACK 12.0 HR 75.833 910 Division Total 4,499 Total @Bid Price 4,499 
2"x2" Angle Bro.ce @10'-0" D.C. Go.ro.ge door guide ~ tro.ck o.nol guiole roller II 
AGONIC CORPORATION SUMMARY REPORT Bid Price Job 14014 ADDISON REVISED DOOR TRACK CODE DESCRIPTION Division 05 METALS 001 MOVE-IN 002 SUPERVISION 004 GUIDE ROLLERS 005 GUIDE TRACK 006
2 X 2 ANGLE 007 GUIDE BRACKETS 014 ERECTION LABOR 015 SKY TRACK TAKEOFF lr, 3.0 HR .... 12.0 HR 12.0 EA 160.0 LF 200.0 LF 12.0 EA 12.0 HR 12.0 HR Division Total 03/08/04 16:37 ver 1.0.3
Page No. 1 UNIT-PRICE EXTENSION ·. 86.667 260 66.417 •.. 797 3.917 47 3.106 497 2.000 400 21.667 ( 260 110.667 1,328 75.833 910 Total 4,499 ® Bid Price 4,499 
2"x2" Angle Bro_ce @10'-0" D.C. .;:v--Go_ro_ge door guide tr0cl-< o_nd guide roller ___ 3 Guide Rollers per Eo_. • -Door II 2 
AGONIC CORPORATION SUMMARY REPORT Bid Price Job 14014 ADDISON REVISED DOOR TRACK CODE DESCRIPTION TAKEOFF Division 05 METALS 1,-,... 001 MOVE-IN 3.0 HR 002 SUPERVISION '-12 0 0 HR 004
GUIDE ROLLERS 12.0 EA 005 GUIDE TRACK 160.0 LF 006 2 X 2 ANGLE 200.0 LF 007 GUIDE BRACKETS 12.0 EA 014 ERECTION LABOR 12.0 HR 015 SKY TRACK 12.0 HR Division Total 03/08/04 16:37 ver
1.0.3 Page No. 1 UNIT-PRICE EXTENSION ' 86.667 260 66.417 797 3.917 47 3.106 497 2.000 400 21.667 ( 260 110.667 1,328 75.833 910 Total 4,499 @Bid Price 4,499 
History The first working model of the Harlan Stack Door was designed in 1955. After years of design refinement, the Door went into pro· duction in 1967, and has been produced continuously
ever since. The patented Horton Stack Door is now the most versatile, umque, and economical wide-area door on the market today. Applications The Stack Door installs on virtually any
type of building, saving money and space. From Alaska to Florida, Stack Doors have been specified for aircraft hangars. tee hangars, industrial and agricultural buildings ... even floating
barges. Installation The Stack Door is NOT installed wilhin the framed opening. It mounts on the outside of the building. The Upper Guide Channel and Mounting Brackets attach to the
flat header. as do the end hinges on the flat side jams. Unlike vertical lifl doors that store overhead. the framed opening height for the Stack Door is also the clear opening height.
This unique feature can save 2' or more in overall building height. Most instal· lations are completed in one day. We provide a factory superintendent for installation upon request,
charging only for his expenses {we pay his wages). Versatility No motors are required; anyone can open this door with ease. Simply turn the handles located on every other panel, pull
gendy, and the Stack Door glides on its bottom track to stack neady out of the way. The stacking design allows for a complete or partial opening, and eliminates the need for side entrance
doors. Durability Designed and tested for a twenty-five pound wind load, in actual use the Stack Door has withstood : Hurricane Alicia; Texas, 1982 110 m.p.h. winds; Russell, KS, 1983
Tornado; Wellington, KS, 1980 The Stack Door must be closed during high wind conditions. We have never had a door blow in while closed. Weather Resistance The Stack Door is not affected
by adverse winter weather conditions. Our patented de· sign puts the working mechanism inside, away from ice and snow. The bottom track sits%" inside the framed opening. Optional Neoprene
Seals also protect the truck assembly from snow and ice. Security On Stack Doors of 18' to 20' heights, the closely spaced, vertical supports prevent ac· cess through the uprights, even
if the skin has been cut away. Stacking The Horton Stack Door opens to the left and right of the framed opening for maximum versatility. When in the stacked position, door panels extend
90° from the face of the building, requiring only 5" for every 2 panels. Warranty The Horton Stack Door has a one year warranty on parts and workmanship. The manufacturer's warranty
on the fiberglass skin is a twenty year limited warranty. 2 INFORMATION & PRODUCT SPECIFICATIONS Construction The Horton Stack Door is jig-built in standard panel widths of 42". Panels
can be enlarged or reduced to fit existing openings. Panel frames are composed of 2"x2" welded, galvanized steel tubing, completely assembled at the factory. No site fabrication is needed.
Door panels are skinned with 8 oz. Solar Grey twin rib fiberglass with a rib height of Vis". Stack Door Door panels are designed to allow the ridges and valleys to nest together when
stacked, creating the widest possible clear opening. Fiberglass is attached to the door panels with black tex screws. li'uck Assembly This patented design includes two sealed precision
bearings riding on top of the track and two sealed precision bearings riding on each side of the bottom track. Each truck assembly carries the weight of only two panels. ll'uck Axles
& Upper Spindles Both are constructed of o/a" round Bar. Spec. Mii-S-6758, heat treated to 18().. 200,000psi, then zinc plated. Bearings The Sealed Precision Ball Bearings (used in our
Truck Assemblies, Upper Spindles, and Trip-in Spindles,) are rated on B-10 life. Ollube Bronze 011 Impregnated Bushings These bushings are inserted at all hinge points, inside and out.
Latch Mechanism Every other panel is fitted with a latch mechanism which includes an inside T-handie and a 3/a" locking rod that latches behind the bottom track and upper guide channel.
Pass Door A free-swinging Pass Door is standard on Door systems with an odd number of panels. To hold the Pass Door open, we provide a retainer which consists of a receiving plate that
attaches to the L ·1 panel and a 3" projection hook that attaches to the Pass Door. A pair opening at the center provides access for even number Door systems. Outside Locking Handle
Each Door is fitted with a paddle lock handle (lock provided by others), located on the A-1 panel for even number systems. For odd number systems, the outside locking handle is located
on the Pass Dam Chains Every Door is provided with field-installed chains to keep the door open. The Eye-bolt is either attached to the side jam and door frame of the A·1 and L-1 panels,
or to the Pass Doo[ Preparation of Opening The framed opening {provided by others) must use a minimum of 8"x3V2" 14 gauge C· Channel turned flat on the building line, header, and side
jams, with the 8" facing outside. Stack Door specifications require that the header be down -braced on 1 0' centers, with down supports connected to a purlin or rafter. bolted or welded
to the top and bottom of the 8" C·Channel. The header must be straight and level. The foundation must extend 6" in front of the framed opening, and be as level as possible, with the
concrete poured below the frost line to prevent possible heaving. li'acks Surface mounted track: Provided by Stack Door and most commonly used for small, single engine hangars. 11/4"x2"XY4",
it sets V4" inside the framed opening, and is pre-punched at the ractory on 2' centers. A hammer drill is required for on-site installa· tion on top of the foundation. 2V2"x%" Rawl Anchors
are furnished by Stack Doo[ A 2" bottom lip faces the inside of the building. SURFACE MOUNTED TRACK RECESSED TRACK NOTE: 1 V2"x 1 112"x V4" TRACK BE v.'' INSIDE THE BUILDING LINE. z
"' 6 m 0 , .. c 6 z 1:) 
Surface Mounted 'D'ack Recessed Track (provided by others): Used mosUy for hangars with heavy, twin engine or light jet aircraft which have high pressure tires. Required materials include
a 4" Channel -5.4 lbs. per foot -and a 1V2"x1V2"x%" angle iroo welded in the center. The position of the track should place the outside leg of the 4" Channel 1o/a'' outside of the jam,
and/or the angle iron set V4" inside the jam. Recessed track is installed at the same time the foundation is poured. Installation Because of our strong belief in proper in· stallation,
we offer a factory superintendent with every job, and we pay his wages. Clients are asked to pay only for expenses, including airfare, meals, and lodging. Virtually every Stack Door
can be installed in one day. TECHNICAL INFORMATION Doors Stack Doors are available up to 20' in height. All the weight of a Stack Door rests on the bottom track. This eliminates the
extensive end wall loading that is required Recessed 'D'ack (Optional) with most vertical lift or conventional sliding B.Bb/Sta Door Options Neoprene Seals: 3"x:Y, 6 "x42" DuoNeoprene.
These must be field installed for proper fit and adjustment Screws are r~ moved from the bottom of the fiberglass skin while the seals are set, then replaced. Neoprene Seals will keep
the bottOm track clean when lhe door is closed. Insulation Package: This option is installed at the factory utilizing the standard fiberglass skin. The Door frame is filled with a 2"
expanded styrene plastic block. one pound in density. This styrene has an R value of 7 .8. We also skin the inside of the Door with a 6 oz. white pebbled backliner. The backliner has
limited flammability, is USDA approved, shatter resistant, and easy to clean. Neoprene Seals for the bottom of each panel are installed in the field (see preceeding paragraph). V2" wide
x Va" thick weather stripping (provided by others) can be used between door frames. Access Door: Available whenever required by local regulations. High-tail aircraft: An electrically
operated, roll-up extension door is available up to 12' wide (height optional). Structural drawings available on request. 1b t 15~ f0 1 boL ::,:rz::::;::_-~ ~1 Requires only 5'' width
{-//'I S &V No site fabrication needed. ~ for every 2 panels in the {) t stacked position. Most installations completed in one day. No motors required. May be opened with ease by anyone.
8 oz. Solar Grey twin rib fiberglass with 80% light transparency. Neoprene (optional) protect truck assemblies from snow and ice. Stack Door mounts to outside of building. Patented precision
bearing truck assembly canies the weight of only two panels. Bronze bushings at all hinge points. 3 
LITHO IN USA 
www.agonic.com WHAT WE Trench Excavation Sub Base Installation Steel Fabrication, Installation Pipe Supports, Stairs & Catwalks Metal Buildings, Framework ers, Foundations, Pavement
Slabs, Sidewalks, Tilt-Ups Spill Containments Electrical & Mechanical With Licensed Sub Contractors FJ·JC:N~ .9?_.2.569~8-333 DO Interior Construction Remodel Renovation Construction
Management General Construction Services Design Consultants 
Harold E. Hurst President Larry J. Newman Marketing/Manager MANAGEMENT Over thirty years experience in Commercial and Industrial Construction Management; Career background includes:
• • • • 0 • Design Consultation I Management Project management I Marketing Solicitation and coordination of subcontractors Expediting I Estimating I Field Engineering Certified Fork
Truck Safety Instructor harold@agonic.com Bachelor of Science Engineering Associate Degree Engineering Science Associate Degree Construction Management Over twenty five years experience
in the Construction Industry; Career background includes: • Construction Manager major construction projects • Design Consultant I Design Build Construction Manager on commercial and
industrial facilities • Solicitation and coordination of subcontractors • Scheduling I Estimating I Field Engineering & Layout • terry@agonic.com Bachelor of Science in Construction
Over twenty five years experience in Commercial, Residential, and Industrial Construction; Career background includes: • Construction Supervision • Solicitation & Coordination of Subcontractors
• Expediting I Estimating I Field Engineering and Layout • Direct supervision of all Construction Trades • fred@agonic.com Over thirty years experience in the Construction Industry and
Industry Suppliers; Career background includes: • Construction Management • Trench & Traffic Safety • Safety Education • Sales, Marketing & Project Co-ordination • Direct supervision
of all construction trades • larry@agonic.com 
Brine Storage Tank City Public Service, San Antonio Oil Water Separator Lipton Foods, Dallas Agonic Corporation a General Construction Firm est. 1985, Specializing in INDUSTRIAL CONSTRUCTION.
Our Name Derives from: The AGONIC LINE, which is an Imaginary line running through the earth's Magnetic pole and the true north pole. It extends around the globe. The AGONIC LINE will
change over time due to natural variations in the earth's magnetic field. These changes must be monitored as they are critical for navigators and surveyors who rely on accurate compass
readings. And so it is with, AGONIC CORPORATION is a constantly changing & adapting organization, structured to keeping our customers on track and in operation with the least amount
of impact to their production as possible. It is our objective to implement innovative means, methods, techniques and safety programs, while constantly updating our skills and awareness.
Our MISSION is to update and adapt our services to accommodate the needs of our customers. We understand that the customer's prime objective is to "Produce their Product", not to accommodate
our services. We will do everything possible to work with our customers to minimize disruption to their work schedule. We are a Customer Oriented organization. A GONIC CORPORATION POLICY
Agonic Corporation and its employees have a responsibility to our customers, ourselves, and our company. Which is to satisfy our customers needs and desires, provide the highest quality
workmanship and to perform our duties within the utmost safety conscious environment, with expedience and at the greatest profitability level. We strive to promote this attitude in order
to insure the longevity of this organization. Our customers are paying for this, and they have every right to expect it. It is our objective to fulfill these expectations. WE CAN DO,
WE MUST DO, AND WE WILL DO THE .JOB RIGHT. 
Basement Wall Forming 5555 Walnut Hill, Dallas Retention & Ammonia Tank Gem3 (Texas Ultra Pure), Mansfield Cooling Tower & Pipe Rack Mykrolis Corporation, Allen JOB PHOTOS Cooling Tower
Support Structure Alcatel Inc., Plano Pavement & Approach Plastican Corporation, Dallas Underground Duct Bank Texas Instruments, Dallas AGONIC OPERATES WITH THE ATTITUDE OF: CAN DO,
MUST DO AND WILL DO THE JOB RIGHT THE FIRST TIME. 
02/02/2004 MON 11:52 FAX 214 522 6796 Structural Services Inc. lill 001/005 GUNNIN CONSULTING ENGINEERS, INC Mailing Address: . Delivery Address: P. 0. Box 820457 Dallas, Texas 75382-0457
Phone: 214-528-3796 3303 Lee Parkway, Suite 325 Dallas, Texas 75219 e-mail: gunningcei@aol.com FACSIMILE COVER SHEET DATE: February 2, 2004 TO: Mr. Harold Hurst, Agonic Corporation Mr.
James C. Pierce, P. E., Town of Addison FROM: Bill Gunnin JOB NAME: Tee Hanger Door Tops Repairs Addison A.itport JOB NUMBER: 451 FAX NO: FAX: 214-522-6796 972-569-8338 972-450-2837~
TOTAL NUMBER OF PAGES, INCLUDING THIS SHEET/f HARD COPY OF TRANSMISSION TO FOLLOW? YES: NO: X PLEASE CALL 214-528-3796 IF COMPLETE TRANSMISSION IS NOT RECEIVED. Harold-FAX'ed herewith
is a reduced copy of the structural drawing in progress. You may use this to prepare a budget estimate for constructing the repairs. Since the number of repairs to be made is unknown
at this time, please prepare a budget estimate for repairs to one door (both ends), five doors (both ends) and ten or more doors (both ends). Call me if you have any questions. 
02/02/2004 MON 11:53 FAX 214 522 6796 Structural Services Inc. lgi002/005 GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box. 820457 Dallas, Tex.as 7538Ul457 Phone 214-528-3796
e-mail: gunningcei@aol.com BILl TO Town of Addison Mr. James C. Pierce, Jr., P. E. 16801 Westgrove Drive Addison, TX 75001-9010 DESCRIPTION PROFESSIONAL SERVICES 1/1/04 THROUGH 1/31/04
Bill L Gunnin -Contract Drafting REIMBURSABLE EXPENSES 1/1/04 THROUGH 1/31/04 Auto Mileage-two trips @30 mi. ea. . tL-fr~~ D a~~ ( v ,.ot 'l.'' v Delivery Address: 3303 Lee Parlcway,
Ste. 325 Dallas, Tex.as 75219-5109 FAX214-S2M796 DATE INVOICE# 2/1/2004 45100-03 PROJECT 451 Addison AirpOrt Tee Hanger.; QlY RATE. AMOUNT 4 125.00 500.00 5.5 85.00 467.50 60 0.325 19.50
Total $987.00 
t.IAICE vERTICAl SAw-CUT 0 END oF PIPE TO PREPARE FOR Y!nD TO 1/2. x 5 PLATE ( ( ~ v.-.RIES • PL 1/2 CONT.. SPUCE W/3/16 DOUBLE-GROOVE, PARllAL PEN WELD, BUTI JOINT, GRIND SMOOTH Icrr~g1so~p~----1/2'
o NELSON SltiD W/CURVEO FERRULE (CUT END AS REO'O) ---~-2-1/2' STO. PIPE ..: 0'-3' EXISTING STEEL SECTION 1 SCAl.E: 3' -1'-0· NOTE: BUILD CINE ROLLER ASSfMBl '( AT EACH END OF' EACH
20' +/-0~ z· ONE WASHER W/1 1/r COTTER KEY f.IIN. ONE WASHER VERIFY 4o I /2' ROLI.ER I I 12• 3/8' PL DOQfl: STOP 0 CL H'*'NGER (SPUCE lS & TWO 1 /2' PLA YES) .. •,:.r .~:..;::··::J··"
· ... ::::~:.~ .. .;.'.-.+ ... '· PREL\MI~ARY FEB 0 Z 1003 NO·l FOR CON>Jll. GENER.o.L NOTES 1. NEW CONSTRUCTION HAS BErn DESIGNED IN ACCORDANCE Will-I THE CITY Of" AOOISION BUILDING
CODE. 2. EXISTING STRUClURAL. CONSTRUCTION HAS NOT BEEN REV1EWED FOR COMPUANCE 'MlH APPUCABLE CODES NOR FOR COMPUANCE 'MTH USUAL AND ACCEPTED STRUCTURAL STANDARDS. 3. VERIFY HORIZONTAL
AND VEIH1CAL Olt.4ENSIONS Of' EXISTING STRUCTURE BEFORE WORK IS BEGUN, 4. STRUCTURAL SltEl ROLLED SHAPES AND PLATES SHALL CONFORM TO ASTM AJ6 OR ASTht A572, UNLESS NOTED OTHERWISE. 5.
GALVANIZE NEW SlRUClVRAL STEEL El.EME:NTS IN ACCORDANCE WITH ASTM A123. SEAL WElD CONNECilONS PRIOR TO GALVANIZING. 6. TOUCH UP FIELD WELDS ON GALVANIZED llEMS WITH PAINT CONFORMING
TO lHE STANDARDS OF lHE AISC. 7. STRUCTURAl STEEL lVBE SHALL CONFORM TO A5n.4 ASOO. GRADE •• B. WELDING OF STRUCTURAL STEEL SHAll CONFORM TO AWS 01.1. USE E70XX ElECTRODES FOR FlELD
ANO SHOP WEUIS. USE ONLY LOW-HYOROGE:N ELECTRODES ON ASTM A242. A514, A572, AND A588 STEEL. .;::;~ ' ···-····,-,. rREliMINARY FEB 0 2 1003 .~0{ :f.OR ·COMSHo·· . .·.~ .. l'l•¥1•1•n••
~ I e: a .. t!l .!~~ :z; i"• lil -~:1 u i;j ~ S,!r; ~ .. ~ " ... l:J l~ s ~ ; f 0 " u ; " "'"' ~< !Ill>!>< <tO"' Oo..~ 0 II. ' c:>Z UIQ D!_.!!) <<C OttO Zw< <~ J:<"tlJ..JO ~ II.>· Ot:
~u OO"AI.S CDElAL NOlU eoALII!• ...so ~rED DATB• [[G) --· 0 ~ ' 0 ~ ' ~ 0 0 .. "' 0 z ~ ~ ~ "' ~ ~ ~ .. ~ ~ "' "' ..., <Q "' "' " ~ " " "' ., " .... "' ro ., ., "'" " ro "' ~ " " 1§1
0 0 '"' ' 0 0 ~
 02/02/2004 MON 11:53 FAX 214 522 6796 Structural Services Inc. MAKE VERTICAL SAW-CUT ® END OF PIPE TO PREPARE FOR WELD TO 1/2 x 5 PLATE GUSSET PLATE AS REQ'D. EXISTING STEEL PL 1/2
CONT., SPLICE W/3/16 DOUBLE-GROOVE, PARTIAL PEN WELD, BUTT JOINT, GRIND SMOOlH TOP OF EXISTING PIPE ~ ----AT TOP OF DOOR 1 /2"0 NELSON STUD W/CURVED FERRULIE (CUT END AS REQ'D) ---------2-1/2"
STD. PIPE x 0'-3" EXISTING STEEL 1 SECTION SCALIE: 3" -1'-0" NOTE: BUILD ONE ROUER ASSEMBLY AT EACH END OF EACH 20' + /-DOOR '· PREllHINARY F£B 0 2 2.003 MOl FOR !:llNS:}P.. ~ 004/005
TS 5 X 2 X 1/-4 CONT., SPLICE W/FLLL PEN WELD 2" W/1 1/2" VERIFY 1 1/2" 3/8" PL DOOR STOP EiP CL HANGER iSPLICE TS & TWO 1 /2 PLATES) 
cLD ES '2" FY '2" E rES) 02102(2004 MON 11:53 FAX 214 522 6796 Structural Services Inc. GENERAL NOlES 1. NEW CONSTRUCTION HAS BEEN DESIGNED IN ACCORDANCE WITH THE CITY OF ADDISION BUILDING
CODE. 2. EXISTING S1RUCn.JRAL CONS1RUCTION HAS NOT BEEN REVIEWED FOR COMPLIANCE WITH APPLICABLIC CODES NOR FOR COMPLIANCE WITH USUAL AND ACCEPlED S1RUCn.IRAL STANDARDS. 3. VERIFY HORIZONTAL
AND VERTICAL DIMENSIONS OF EXISTING STRUCn.JRE BEFORE WORK IS BEGUN. 4. STRUCn.JRAL SlEEL ROLLED SHAPES AND PLAITS SHALL CONFORM TO ASTM A36 OR ASTM A572. UNLESS NOlED OTHERWISE. 5.
GALVANIZE NEW S1RUCTURAL SlEEL ELEMENTS IN ACCORDANCE WITH ASTM A123. SEAL WELD CONNECTIONS PRIOR TO GALVANIZING. 6. TOUCH UP FIELD WELDS ON GALVANIZED llEMS WITH PAINT CONFORMING TO
THE STANDARDS OF THE AISC. 7. S1RUCTURAL SlEEL TUBE SHALL CONFORM TO ASTM A500, GRADE B. 8. WELDING OF S1RUCTURAL STEEL SHALL CONFORM TO AWS D1.1. USE E70XX ELICC1RODES FOR FIELD AND
SHOP WELDS. USE ONLY LOW-HYDROGEN ELEC1RODES ON ASTM A242, A514, A572, AND A588 STEEL. PREliMINARY FEB 0 2 2003 ·Ml {O:R ·CDtiSliL· . .... . . ~ ·. ""': . ·' ~ 005/005 Revlalon•: u z
..... rn 0: fil fil z 0 N ..... " • Cl •o~ z ~-1'1 fil 'N I ~~ft Cl "·· ~~~ z bt!~ ..... ~ •• •• ::> ~i rn "a z c " 0 " u z ..... z z ::> Cl DETAILS GENBW. NOTES SCAL.E: AS NOTEO DATE:

Page 1 ofl Jim Pierce From: Harold Hurst [harold@agonic.com] Sent: Wednesday, February 11, 2004 9:28 AM To: Jim Pierce Subject: "T HANGER DOOR GUIDES" Mr. Pierce, We are pleased to submit
this "BUDGET PROPOSAL" to you in regards to the proposed "T HANGER OVERHEAD DOOR GUIDES" as per design an(j specifications by GUNNIN CONSUTL TING ENGINEERS. Note: We have calculated
this proposal as if we were submiting this for bid, Less any BOND requirements the City of Addison might require. Thank you for the opportunity to be of assistance in this matter. Harold
E. Hurst President Agonic Corporation 41 0 Interchange Street McKinney, Texas 75071 972-569-8333 Fax: 972-569-8338 Cell: 214-533-7021 www.agonic,com 2/11/2004 
o'l\GONIC CORPORATION CONSTRUCTION & CONSTRUCTION MANAGEMENT BUDGET PROPOSAL ATTN.: JAMES C. PIERCE JR. P.E. ASSISTANT PUBUC WORKS DIRECTOR TOWN OF ADDISON 16801 WestgroveDrive Addison,
Texas 75001-9010 Mr. Pierce, AGONIC CORPORATION 2/10/04 We are pleased to submit tbis "BUDGET PROPOSAL" to you in regards to the proposed "THanger" Door Guides per plans and specifications
by Gunuin Consulting Engineers. Labeled Preliminary, dated 212/04 Sheet S-1, Located at tbe Addison Air Port. WE PROPOSE TO FURNISH LABOR, SUPERVISION, MATERIALS, EQUIPMENT, AND INSURANCE
DIRECTLY RELATED TO OUR WORK, TO PERFORM THE FOLLOWING; A) One to Four Hangers. 1) Fabricate Door Headers (encompassing the specific hanger and 1/2 of each adjacent hanger. 2) Fabricate
Roller assembly ( 3 each per door re: verbal instructions Bill Gunnin). 3) Support Doors & and remove existing angle guide and bracing. 4) Install new headers approximately 120 L.F.
5) Install Roller Gnide Assembly ( 3 ea. Per door) 6) Paint Headers and all welds (Per Verbal; James Pierce in Lieu of Galvanized) 7) Cleanup and removal of all job related spoils and
debris. Total labor materials and equipment EA. For One to Four Hangers. Total labor materials and equipment EA. For Five to Nine Hangers. Total labor materials and equipment EA. For
Ten or more Hangers. $ 9,620.00 EACH $ 9,270.00 EACH $ 8,755.00 EACH Note: In the case of multiple hangers, "ALL HANGERS TO BE A V AlLABLE FOR CONCURRENT PERFORMANCE OF WORK" EXCLUSIONS:
ANY WORK NOT EXPRESSLY DESCRlBED BY ITEMS 1 THRU 7 ABOVE. THANK YOU FOR THE OPPORTUNITY SO SUBMIT THIS QUOTE HAROLD E. HURST Addison! GUIDE TRACKS PRESIDENT AGONIC CORPORATION 
ol\GONIC CORPORATION CONSTRUCTION & CONSTRUCTION MANAGEMENT AGONIC CORPORATION BUDGET PROPOSAL ATTN.: JAMES C. PIERCE JR. P.E. ASSISTANT PUBLIC WORKS DIRECTOR TOWN OF ADDISON 16801 WestgroveDrive
Addison, Texas 75001-9010 Mr. Pierce, 2/10/04 We are pleased to submit this "BUDGET PROPOSAL" to you in regards to the proposed "THanger" Door Guides per plans and specifications by
Gunnin Consulting Engineers. Labeled Preliminary, dated 2/2/04 Sheet S-1, Located at the Addison Air Port WE PROPOSE TO FURNISH LABOR, SUPERVISION, MATERIALS, EQUIPMENT, AND INSURANCE
DIRECTLY RELATED TO OUR WORK, TO PERFORM THE FOLLOWING; A) One to Four Hangers. 1) Fabricate Door Headers (encompassing the specific hanger and 1/2 of each adjacent hanger. 2) Fabricate
Roller assembly ( 3 each per door re: verbal instructions Bill Gunnin). 3) Support Doors & and remove existing angle guide and bracing. 4) Install new headers approximately 120 L.F.
5) Install Roller Guide Assembly ( 3 ea. Per door) 6) Paint Headers and all welds (Per Verbal; James Pierce in Lieu of Galvanized) 7) Cleanup and removal of all job related spoils and
debris. Total labor materials and equipment EA. For One to Four Hangers. Total labor materials and equipment EA. For Five to Nine Hangers. Total labor materials and equipment EA. For
Ten or more Hangers. $ 9,620.00 EACH $ 9,270.00 EACH $ 8,755.00 EACH Note: In the case of multiple hangers, "ALL HANGERS TO BE AVAILABLE FOR CONCURRENT PERFORMANCE OF WORK" EXCLUSIONS:
ANY WORK NOT EXPRESSLY DESCRIBED BY ITEMS 1 THRU 7 ABOVE. THANK YOU FOR THE OPPORTUNITY SO SUBMIT TIDS QUOTE HAROLD E. HURST Addison! GUIDE TRACKS PRESIDENT AGONIC CORPORATION 
.:AGONIC CORPORATION AGONIC CORPORATION CONSTRUCTION & CONSTRUCTION MANAGEMENT BUDGET PROPOSAL ATTN.: JAMES C. PIERCE JR. P.E. ASSISTANT PUBLIC WORKS DIRECTOR TOWN OF ADDISON 16801 WestgroveDrive
Addison, Texas 75001-9010 Mr. Pierce, 2/10/04 We are pleased to submit this "BUDGET PROPOSAL" to you in regards to the proposed "THanger" Door Guides per plans and specifications by
Gunnin Consulting Engineers. Labeled Preliminary, dated 2/2/04 Sheet S-1, Located at the Addison Air Port. WE PROPOSE TO FURNISH LABOR, SUPERVISION, MATERIALS, EQUIPMENT, AND INSURANCE
DIRECTLY RELATED TO OUR WORK, TO PERFORM TilE FOLLOWING; A) One to Four Hangers. 1) Fabricate Door Headers (encompassing the specific hanger and 112 of each adjacent hanger. 2) Fabricate
Roller assembly ( 3 each per door re: verbal instructions Bill Gunnin). 3) Support Doors & and remove existing angle guide and bracing. 4) Install new headers approximately 120 L.F.
5) Install Roller Guide Assembly ( 3 ea. Per door) 6) Paint Headers and all welds (Per Verbal; James Pierce in Lieu of Galvanized) 7) Cleanup and removal of all job related spoils and
debris. Total labor materials and equipment EA. For One to Four Hangers. Total labor materials and equipment EA. For Five to Nine Hangers. Total labor materials and equipment EA. For
Ten or more Hangers. $ 9,620.00 EACH $ 9,270.00 EACH $ 8,755.00 EACH Note: In the case of multiple hangers, "ALL HANGERS TO BE AVAILABLE FOR CONCURRENT PERFORMANCE OF WORK" EXCLUSIONS:
ANY WORK NOT EXPRESSLY DESCRIBED BY ITEMSI THRU 7 ABOVE. THANK YOU FOR TilE OPPORTUNITY SO SUBMIT TillS QUOTE Addison/GUIDE TRACKS HABOLD E. HURST PRESIDENT AGONIC CORPORATION 
Message Jim Pierce From: Sent: To: Cc: Bill Dyer [Biii.Dyer@Staubach.com] Friday, February 13, 2004 9:41 AM Jim Pierce Lisa Pyles; Mark Acevedo Subject: FW: Addison Water Line Importance:
High Jim; Page 1 ofl Frito-Lay is requesting immediate relief for an utility easement parallel to their north boundary. They are unable to get sufficient water pressure to their site
as originally plan. They are wanting to abandon the water line under their newly poured ramp in favor of the north approach (see attached). They are wanting verbal approval with the
paper work to follow otherwise construction will be delayed. Please advise. Bill Dyer -----Original Message----From: David Stack Sent: Friday, February 13, 2004 8:26AM To: Bill Dyer;
Jim Pierce Cc: Brad Blankenship; Larry Toon; ccoleman@constructors.com; Scott A. Marek (smarek@corgan.com); 'Steele, Lee J {FLNA}' Subject: FW: Addison Water Line Bill: We need immediate,
this afternoon if possible, approval for an easement and City Engineering approval to install a new 8" fire line along the North side of the property. Per our Fire Protection Engineer,
this is required whether or not we install a fire pump due to the relatively low pressure recently measured at the site. Please advise ASAP, thank you. -----Original Message----From:
Pam Petrides Sent: Friday, February 13, 2004 8:16AM To: David Stack Subject: Addison Water Line Pam Petrides Design & Construction Consulting THE STAUBACH COMPANY 15601 Dallas Parkway,
Suite 400 Addison, Texas 75001 Direct: 972.361.5028 Fax: 972.361.5916 Main: 972.361.5000 pam.petrides@staubach. com 2/13/2004 
\ \ \ \ \ \ \ \ \ \ ~~ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ .· 
02/27/2004 FRI 15:12 FAX 214 522 6796 Structural Services Inc. ~ 0011001 GUNNIN CONSULTING ENGINEERS, INC Mailing Address: Delivery Address: P. 0. Box 820457 Dallas, Texas 75382-0457
Phone: 214-528-3796 3303 Lee Parkway, Suite 325 Dallas, Texas 75219 e-mail: gunningcei@aol.com FACSIMILE COVER SHEET DATE: February27, 2004 TO: Mr. James C. Pierce, Jr., PE, Town of
Addison FROM: Bill L. Gunnin JOB NAME: Tee-Hanger Doors Addison Airport JOB NUMBER: 451 FAX NO: TOTAL NUMBER OF PAGES, INCLUDING THIS SHEET: I HARD COPY OF TRANSMISSION TO FOLLOW? YES:
FAX: 214-522-6796 972-450-2837 NO: X PLEASE CALL 214-528-3796 IF COMPLETE TRANSMISSION IS NOT RECEIVED. Jim-Would you FAX me a copy of the drawing and/or proposal that Harold Hurst (Agonic)
sent you as a cost-saving measure? Thanks, Bill Gunnin 
03/02/2004 TUE 8:38 FAX 214 522 6796 Structural Services Inc. ~001/001 GUNNIN CONSULTING ENGINEERS, INC Mailing Address: Delivery Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phooe:
214-528-3796 3303 Lee Parkway, Suite 325 Dallas, Texas 75219 e-mail: gunningcei@aol. com FACSmnLECOVERSHEET DATE: March 2, 2004 TO: Mr. James C. Pierce, Jr., PE, Town of Addison FROM:
Bill L. Gunnin JOB NAME: Tee-Hanger Doors Addison Airport JOB NUMBER: 451 FAX NO: TOTALNUMBEROFPAGES, INCLUDING TinS SHEET: 1 HARD COPY OF TRANSMISSION TO FOLLOW? YES: FAX: 214-528-3797
972-450-2837 NO: X PLEASE CALL 214-528-3796 IF COMPLETE TRANSMISSION IS NOT RECEIVED. Jim-Our FAX number has changed to 214-528-3797; you will get a formal announcement in the mail soon.
Would you again FAX me a copy of the drawing and/or proposal that Harold Hurst (Agonic) sent you as a cost-saving measure? Thanks, Bill Gunnin 
GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phone 214-528-3796 e-mail: gunningcei@aol.com Delivery Address: 3303 Lee Parkway, Ste. 325
Dallas, Texas 75219-5109 FAX 214-522-6796 TEE-HANGER DOORS TOP LATERAL SUPPORTS ADDISON AIRPORT ADDISON, TEXAS ADDENDUM ONE Feb.4,2004 1. Add the following to the GENERAL NOTES: 9. CONTRACTORSHALLSUB
NUTSHOPDRAWINGSFORSTRUCTURAL STEEL AND REINFORCING STEEL, INCLUDING BOTH ERECTION PLANS AND MATERIAL LISTS. SHOP ORA WINGS SHALL NOT BE MADE BY USING REPRODUCTIONS OF CONTRACT ORA WINGS.
10. OWNER SHALL RETAIN AN INDEPENDENT COMMERlCAL TESTING LABORATORY TO PERFORM PROFESSIONAL CONSULTATION, INSPECTION, AND TESTING OF MATERIALS AND CONSTRUCTION. 2. Revise the weld symbol
of the fillet welds between the top of the TS and the two W' plates from3/16-3 @2to3/16-3@12. 3. Add continuous.l/4" fillet welds between the bottom of the TS and the two W' plates.
4. Add an arrow between the note "GUSSET PLATE AS REQUIRED" to the rectangular dashed box at the juncture of the sloped top chord of the rafter and the horizontal bottom chord of the
rafter. 
GUNNIN CONSULTING ENGINEERS, INC Mailing Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phone: 214-528-3796 e-mail: gunningcei@aol.com FACSIMILE COVER SHEET DATE: February4, 2004
Delivery Address: 3303 Lee Parkway, Suite 325 Dallas, Texas 75219 FAX: 214-522-6796 TO: Mr. Harold Hurst, Agonic Corporation FAXNO: 972-569-8338 cc: Mr. James Pierce, Town of Addison
FROM: Bill L. Gunnin JOB NAME: Tee-Hanger Doors Addison Airport JOBNUMBER: 451 TOTAL NUMBER OF PAGES, INCLUDING THIS SHEET: 2 HARD COPY OF TRANSMISSION TO FOLLOW? YES: NO: X PLEASE CALL
214-528-3796 IF COMPLETE TRANSMISSION IS NOT RECEIVED. 
TOWN OF ADDISON To: JA~e f;skr Company: t.J~,sh ll"'fkz FAX#: 97J-]J'r-933f Date: 2 ,-'_5 ~ 0 L{-# of pages (including cover): ;: PUBLIC WORKS · From: Jim Pierce, P.E. Asst. Public Wks.
Dir. Phone: 972/450-2879 FAX: 972/450-2837 jpierce@ci.addison.tx.us 16801 Westgrove P.O.Box 9010 Addison, TX 75001-9010 Re: I ~r ldeor ~~ D Original in mail D Per your request D FYI
D Call me Comments=------------------------~-FYL -
12/31/2003 WED 13:57 FAX 214 522 6796 Structural Services Inc. ~002/002 GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382..(1457 Phone 214-528-3796
e-mail: gunningcei@aol.com Bill TO Town of Addison Mr. James C. Pieree, Jr., P.E. 16801 Westgrove Drive · Addison, TX 75001-9010 DESCRIPTION PROFESSIONAL SERVICES 11/1/03 THROUGH 12/31/03
B~ll. Gunnin Contract Drafting D~~ff ~~ -Delivezy Address: 3303 Lee Parkway, Ste. 325 Dallas, Texas 75219-5109 FAX 214-522-6796 DATE INVOICE# 1/1/2004 451~2 PROJECT 451 Addison Airport
Tee Hanger.; QTY RATE AMOUNT 4 125.00 500.00 6 85.00 510.00 Total $1.010.00 
-MAKE VERTICAL SAW-CUT @END OF PIPE TO PREPARE FOR WELD TO 1/2 x 5 PLATE c ----,. B F=y=4ff-1~~~~G rAfA-l.W-+!=~11=--E ::~jl _____ -Jl-L-UL~~~~~;;~====~ ~~::::=:_,::=,...----F --,/...---<:::
I""'........, (11:::::-:::::,.~-K 1----.._::,._-~ D SECT! ON.....__ __ £~~si-t~ 1 SCALE: 3" = 1'-0" 1/S-1 !==+=============::1 /--F' 1----,,=--==f--H ----t~~EEEEE_~~~-~~ (;.Jf--of-1.
;r;: we llx /fle1 doorf · . ) ·wd( f1..<. atfj~~ ~? 0 2' .!-MJ k.. Q ~/2 {P-If~ '---D /5~. GENERAL NOTES 1. NEW CONSTRUCTION HAS BEEN DESIGNED IN ACCORDANCE WITH THE CITY OF ADDISION
BUILDING CODE. 2. EXISTING STRUC1URAL CONSTRUCTION HAS NOT BEEN REVIEWED FOR COMPLIANCE WITH APPLICABLE CODES NOR FOR COMPLIANCE WITH USUAL AND ACCEPTED STRUC1URAL STANDARDS. .. 3. VERIFY
HORIZONTAL. AND VERTICAL DIMENSIONS OF EXISTING STRUC1URE BEFORE WORK IS BEGUN. 4. STRUC1URAL STEEL ROLLED SHAPES AND PLATES SHALL CONPORM TO ASTM A36 OR ASTM A572, UNLESS NOTED OTHERWISE.
5. GALVANIZE NEW STRUC1URAL STEEL ELEMENTS IN ACCORDANCE WITH ASTM A123. SEAL WELD CONNECTIONS PRIOR TO GALVANIZING. 6. TOUCH UP FIELD WELDS ON GALVANIZED ITEMS WITH PAINT CONFORMING
TO THE STANDARDS OF THE AISC. 7.. STRUC1URAL STEEL 1UBE SHALL CONFORM TO ASTM A500, GRADE B. 8. WELDING OF SlRUC1URAL STEEL SHALL CONFORM TO AWS D1.1. USE E70XX ELIECTRODES FOR FIELD
AND SHOP WELDS. USE ONLY LOW-HYDROGEN ELIECTRODES ON ASTM A242, A514, A572, AND A588 STEEL. q, Mllltlfl.u."'-1 11 VfiATl U/l.-M.Jt.l£.M.&~I SHAL-t..-f]~ M.A:,AJrltrN<JJ uJ Ac_~t>({ D.4N'Ct,
w trf.i-m:, ''t<.rt.ptJf(..;-ot" 5V./35~tz.FAC:; ['f.{Jt--iJ/.4rt8,J S:_(tl/'(ci ~ NPuv!lUv JflJ,} fl.__ lo If'£ M i ,p/5, 4£) 0 l]..) .-.1 # e(, 6 i+J /1 (!, V ' (?.. C. f /,.... TD
.fUGf~ D 'i.e ZjiA.p ~l'v I q, -z.. o () 3 P(LO J"f, c"/fl/u, 1 q -161 (/-. j A TS 3 X 2 X 1/4 CONT., SPLICE W/FULL PEN WELD B PL 1/2 x 5 CONT., SPLICE W/3/16 DOUBLE-GROOVE, PARTIAL
PEN WELD, BUTI JOINT, GRIND SMOOTH C EXISTING PIPE AT HANGER ROOF D EXISTING PIPE AT ROWNG DOOR E 1" X 2" DIA. STEEL ROLLER F 3/8" X 3" BOLT G PL 1-1/2 X 3-1/2 X 1/4 H PL 1-1/2 X 1-7/8
X 1/4 4 J PL 3/16 X 1-3/16 X 1 K PL 3/16 X 1-3/16 X 1 :3 • .D.!(vc .,_://deck.. cfeo.ra,~ & ; mens 1 o1li.., i.f. B,~( w<!I.C/~~ tk'C-. Revl ... lone; DETAILS GENERAL NOTES SCALE~ A5
NoTED DATE: .Job t-lrrrlber, 
------® Public Works I Engineering 16801 Westgrove • P.O. Box 9010 Addison, Texas 75001-9010 Telephone: (972) 450-2871 • Fax: (972) 450-2837 GENTLEMAN: DATE ATTENTION R£: I -'2.. -D
c.f-I JOB NO. I -f-fA ;U II;---.:;::pzJ1 f2J/N11tfJ fl/-f..<; ' I I WE ARE SENDING YOU }(Attached 0 Prints 0 Under separate cover via ______ the following items: 0 Shop Drawings 0 Plans
0 Samples 0 Specifications 0 Copy of letter 0 Change order 0 ________________________ _ COPIES DATE NO. DESCRIPTION I ~.b~ J.,~ 1/v/IJ,,T~' if7oJA_.,:/-j:Ju £i. .S L.::f,J, THESE ARE
TRANSMITTED as checked below: 0 For approval P(For your use 0 As requested 0 Approved as submitted 0 Approved as noted 0 Returned for corrections I I I 0 Resubmit ____ copies for approval
0 Submit copies for distribution 0 Return corrected prints 0 For review and comment 0---------------------------0 FOR BIDS DUE ___________________ 19. _ __ 0 PRINTS RETURNED AFTER LOAN
TO US REMARKS __________________________________________________________________ _ COPYTO __ ~):~/~~):~/~J4~.~~~~~--------------
REPORT OF SUBSURFACE EXPLORATION SERVICES HANGAR IMPROVEMENTS ADDISON, TEXAS FOR TOWN OF ADDISON DECEMBER 19, 2003 
ENGINEERING CONSULTING SERVICES, LTD. Geotechnical • Construction Materials • Environmental Mr. Jim Pierce Town of Addison P.O. Box 9010 Addison, Texas 75001 December 19, 2003 ECS Job
No. 19-3674 Reference: Report of Subsurface Exploration and Engineering Services Hangar hnprovements Addison Airport Addison, Texas Dear Mr. Pierce: Engineering Consulting Services,
Ltd. has completed the subsurface exploration for the proposed hangar improvements at Addison Airport in Addison, Texas. The enclosed report describes the subsurface exploration procedures,
laboratory testing, and provides estimates of the potential vertical soil movements at the site. A Boring Location Diagram is included in the Appendix of this report along with the Boring
Logs performed for the exploration. We appreciate this opportunity to be of service to you during the design phase of this project. If you have any questions with regard to the information
and recommendations presented in this report, or if we can be of further assistance to you in any way during the planning or construction of this project, please do not hesitate to contact
us. Respectfully, ENGINEERING CONSULTING SERVICES, LTD. Mark L. McKay, P.E. Principal Engineer _,.. ....., ,,, ;'"..':---.~-' "-/"-o*. F. . . T. . t .: ·.t-. '.'~ '& ', ,, 1< I ,~ "~'.
... ·... *·'·'' · il! ~. •••••• • il! *·=···········w;·\(P.'f ~ ~··· WIP.RI< ~; •.• ~·····."0:"~ ~,..···::···-g~o679 _:"/jj} L ,, ~a ··.~teEt-~~«:.·· r:f" ..frtft~f'.J ,, ""<' ·······
0'. -T 11,, 8,s,1,o,N,P, .\.. ~-.:-....~. -4950 Keller Springs Road, Suite 480, Addison, TX 75001 o (972) 392-3222 • FAX (972) 392-0102 • www.ecslimited.com Aberdeen. MD• ·Atlanta, GA
·Austin, TX ·Baltimore. MD· Chamilly. VA· Charlolle. NC ·Chicago. IL ·Cornelia. GA"' ·Dallas. TX Danville. VA Frederick. MD· Fredericksburg. VA · Greensboro, NC ·Greenville, SC · Norfolk.
VA · Orlando. FL · Research Triangle Park. NC Richmond. VA · Roanoke. VA · San Antonio. TX · Williamsburg. VA · Wilmington. NC · Winchester. VA '"Testing Services Only 
PROJECT CLIENT SUBMITTED BY REPORT Subsurface Exploration and Engineering Services Hangar Modifications Addison Airport Addison, Texas Town of Addison P.O. Box 9010 Addison, Texas 75001
Engineering Consulting Services, Ltd. 4950 Keller Springs Road Suite 480 Addison, Texas 75001 PROJECT #19-3674 DATE December 19, 2003 
Hangar Improvements Addison, Texas ECS Job No. 19-3674 PROJECT OVERVIEW Introduction Scope of Work Proposed Construction Purposes of Exploration TABLE OF CONTENTS EXPLORATION PROCEDURES
Subsurface Exploration Procedures Laboratory Testing Program EXPLORATION RESULTS Site Conditions Subsurface Conditions Groundwater Observations ANALYSIS AND RECOMMENDATIONS Potential
Soil/Foundation Movements Hangar Door Connection Design Considerations Foundation Design Considerations Closing APPENDIX PAGE 1 1 1 1 1 2 2 2 3 3 3 3 4 4 4 4 6 7 
Hangar Improvements Addison, Texas ECS Job No. 19-3674 Introduction PROJECT OVERVIEW This report presents the results of our subsurface exploration and engineering recommendations for
the proposed hangar improvements located at Addison Airport in Addison, Texas. The Boring Location Diagram included in the Appendix of this report shows the approximate location of this
project. Scope of Work The conclusions and recommendations contained in this report are based on five soil borings drilled in the vicinity of the hangars, and associated laboratory testing
of selected soil samples. The borings were drilled to depths of about 12 to 15 feet. The results of the soil borings, along with a Boring Location Diagram showing the approximate boring
locations, are included in the Appendix of this report. This report presents our estimates of potential vertical soil movements at the site. Proposed Construction According to the information
provided, the project consists of modifying the hangar doors on five hangar structures at the referenced site. It is unknown to us what type of foundation system supports the hangars.
It is assumed the hangars are supported on shallow footings bearing in clay soils. Purposes of Exploration The purposes of this exploration were to explore the soil and groundwater conditions
at the site and to develop engineering recommendations to guide design and construction of the project. We accomplished these purposes by: 1. Drilling five borings in the vicinity of
the hangars to explore the subsurface soil and groundwater conditions. 2. Performing laboratory tests on selected representative soil samples from the borings to evaluate pertinent engineering
properties. 3. Analyzing the field and laboratory data to develop appropriate engmeenng recommendations. 
Hangar Improvements Addison, Texas ECS Job No. 19-3674 EXPLORATION PROCEDURES Subsurface Exploration Procedures A representative ofECS, Ltd. met with Mr. Jim Pierce, P.E. of the Town
of Addison to select the boring locations. The soil borings were performed with a truck-mounted, rotary-type auger, drill rig that utilized continuous flight augers to advance the boreholes.
Representative soil samples were obtained by means of conventional shelby tube sampling procedures in general accordance with ASTM D-1587. In this procedure, a thin-walled, seamless
tube with a sharp cutting edge is pushed hydraulically into the soil, and a relatively undisturbed sample is obtained. Texas cone penetrometer tests were performed to evaluate the load
carrying capacity of the limestone encountered. The tests were performed in general accordance with test method Tex-132-E in the Texas Department of Transportation (TxDOT) Manual of
Testing Procedures. The results of the tests are shown on the attached boring logs at the depths of of occurrence. Field logs of the soils encountered in the borings were maintained
by the drill crew. After recovery, each geotechnical soil sample was removed from the sampler and visually classified. Representative portions of each soil sample were then wrapped in
foil and plastic and transported to our laboratory for further visual examination and laboratory testing. After completion of the drilling operations, the boreholes were backfilled with
auger cuttings to the existing ground surface. Laboratory Testing Program Representative soil samples were selected and tested in our laboratory. The soil samples were tested for moisture
content, Atterberg limits and swell potential. A calibrated hand penetrometer was used to estimate the unconfined compressive strength of the soil samples. The calibrated hand penetrometer
has been correlated with unconfined compression tests and provides a better estimate of the soil consistency than visual observation alone. These test results are provided on the attached
boring logs and Swell Test Results sheet in the Appendix. An experienced geotechnical engineer classified each soil sample on the basis of texture and plasticity in general accordance
with the Unified Soil Classification System. The group symbols for each soil type are indicated in parentheses following the soil descriptions on the boring logs. A brief explanation
of the Unified System is included with this report. The geotechnical engineer grouped the various soil types into the major zones noted on the boring logs. The stratification lines designating
the interfaces between earth materials on the boring logs and profiles are approximate; in situ, the transitions may be gradual. The soil samples will be retained in our laboratory for
a period of 60 days, after which, they will be discarded unless other instructions are received as to their disposition. 2 
Hangar Improvements Addison, Texas ECS Job No. 19-3674 Site Conditions EXPLORATION RESULTS The hangar improvements will be made at Addison Airport in Addison, Texas. At the time of this
investigation, the site was relatively flat. The soil borings were drilled in grassy areas adjacent to the hangar structures. Subsurface Conditions The boring locations were selected
to explore the soil and rock conditions near the existing hangars. The conditions encountered at the boring locations can be summarized as follows. Based on visual observation of the
soil samples, clay fill soils were present at the ground surface in boring B-2. Native dark brown clay soils were present at a depth of about 2 feet in boring B-2, and at the ground
surface in the remaining borings. The clay soils typically became brown to tan with increasing depth, and continued to the top of tan limestone. The tan limestone was present at depths
of about 2 to 5 feet in the borings, and extended to the top of gray limestone that was encountered at depths of about 7 to 12 feet. The gray limestone continued to the termination of
the borings at depths of about 12 to 17 feet. The soil types observed at the borings are noted on the boring logs, enclosed in the Appendix. The clay soils encountered in the borings
are considered moderately to highly plastic. Based on our experience with similar soils in the region, the clay soils are highly active. Active soils are subject to volume changes with
fluctuations in their moisture content. The active clay soils swell with moisture increases and shrink when they dry. The volume changes can subject foundation (footings, shafts, slabs,
etc.) to significant soil pressures and movements with the typical moisture changes that occur beneath a structure after construction. Groundwater Observations The borings were monitored
while drilling and after the completion of drilling for the presence and level of groundwater. Groundwater seepage was not observed while advancing or at the completion of drilling the
borings. Although seepage was not encountered in the borings during our drilling, water can be encountered in and above the tan limestone, particularly during wet periods of the year.
Fluctuations of the groundwater level can occur due to seasonal variations in the amount of rainfall, runoff and other factors not evident at the time the borings were performed. The
possibility of groundwater level fluctuations should be considered when developing the design and construction plans for the project. 3 
Hangar Improvements Addison, Texas ECS Job No. 19-3674 ANALYSIS AND RECOMMENDATIONS The following recommendations have been developed on the basis of the previously described project
characteristics and subsurface conditions. If there are any changes to the project characteristics or if different subsurface conditions are encountered during construction, ECS, Ltd.
should be consulted so that the recommendations of this report can be reviewed. Potential Soil/Foundation Movements The clay soils encountered at this site are considered active. These
active clays can subject shallow foundations to movements (due to shrinking and swelling) with fluctuations in their moisture content. Based on test method TEX-124-E in the Texas Department
of Transportation (TxDOT) Manual of Testing Procedures and our experience with similar soils, we estimate total soil movements on the order of 1 to 3 inches could occur, depending on
the thickness of the clay layer above the tan limestone and the sustained load imposed by the foundation element. These movements are based on dry conditions that can occur prior to
construction. Hangar Door Connection Design Considerations We understand plans are to provide a different sliding connection at the top of the hangar doors. This connection needs to
accommodate some vertical displacement due to differential movements of the foundation system supporting the structure and the "track" that the bottom of the door rolls along. As previously
indicated, it is not known what type of foundation system supports the existing hangars or ''track" at the bottom of the door. A conservative approach is to assume that shallow footings
support the structures. The magnitude of vertical movements due to moisture fluctuations and corresponding volume changes in the active clays is dependent on the soil type, the thickness
of the soil above the limestone, the depth of the foundation element, and the sustained load imposed onto the soil. A conservative approach would be to assume that the differential movement
between the foundation of the hangar and the "track" supporting the door is equivalent to the estimated potential vertical rise of the soil as determined above. Therefore, we recommend
the connection at the top of the door accommodate at least 3 inches of vertical movement. Foundation Design Considerations If it is desired to support the hangar doors on a separate/new
foundation system, the most positive foundation system should consist of straight-sided drilled shafts bearing in the gray limestone stratum. The shafts will develop their load carrying
capacity through a combination of end bearing 4 
Hangar Improvements Addison, Texas ECS Job No. 19-3674 and skin friction in the limestone. We recommend using an allowable ending bearing pressure of 50,000 pounds per square foot (psf)
for drilled shafts bearing in the gray limestone. An allowable skin friction of 7,500 psf can be used for proportioning drilled shafts bearing in the gray limestone stratum. Expansion
of the near surface clays with moisture increases can subject the shafts to uplift forces. The magnitude of these forces is difficult to estimate and depends on several factors including
the in-situ moisture levels at the time of construction and the availability of water. We estimate the magnitude of these forces to be approximately 2,000 psfto the top of tan limestone.
Uplift forces must be resisted by the dead load on the shafts and uplift skin friction resistance in the limestone. We recommend using an allowable skin friction resistance of 5,000
psf in the gray limestone. An allowable skin friction resistance of 1,000 psf can be used in the the tan limestone below a depth of 3 foot in the tan limestone and any temporary casing,
if required. The shafts should contain sufficient reinforcing steel continuously throughout the shaft depth to resist anticipated tensile forces. The possibility of encountering groundwater
seepage during shaft installation increases during wet periods of the year. Concrete and steel should be placed as soon as possible after shaft excavations are complete to reduce the
potential for seepage problems and deterioration of the bearing surface. During wet periods, seepage in and above the tan limestone could, in some cases, require the use of temporary
casing to properly install the shafts. The casing should be seated in the limestone below any seepage. All water should be removed from the cased excavation before beginning the design
rock penetration. A sufficient head of concrete must be maintained in the casing during withdrawal. Installation of individual shafts should be completed in one day. The concrete placed
for drilled shafts should have a slump between 5 and 7 inches and should be placed in a manner that prevents it from striking the reinforcing steel and sides of the excavation. We recommend
that all drilled shafts be observed by qualified geotechnical personnel, to verify proper shaft installation. All horizontal structural elements should be supported by the drilled shafts
and formed with a nominal 6-inch void between the soils and the structural element. It is not necessary to excavate competent limestone to create this void space. Cardboard carton forms
can be used to create this void. A soil retainer should be provided to help prevent in fill of this void. Soils placed along the exterior perimeter of the structure should be on-site
clay soils that are compacted to at least 95% of their maximum standard Proctor dry density. The clay fill should be compacted at a workable moisture content above its optimum value.
The purpose of this clay backfill is to reduce the opportunity for surface water infiltration beneath the structure. 5 
Hangar Improvements Addison, Texas ECS Job No. 19-3674 Closing We recommend that the construction acttvttles be monitored by ECS, Ltd. to provide the necessary overview and to check
the suitability of the subgrade soils for supporting the foundations and pavements. We would be most pleased to provide these services. This report has been prepared in order to aid
in the evaluation of this property and to assist the architect and/or engineer in the design of this project. The scope is limited to the specific project and locations described herein
and our description of the project represents our understanding of the significant aspects relative to soil and foundation characteristics. In the event that any change in the natltre
or location of the proposed construction outlined in this report are planned, we should be informed so that the changes can be reviewed and the conclusions of this report modified or
approved in writing by the geotechnical engineer. It is recommended that all construction operations dealing with earthwork and foundations be reviewed by an experienced geotechnical
engineer to provide information on which to base a decision as to whether the design requirements are fulfilled in the actual construction. If you wish, we would welcome the opportunity
to provide field construction services for you during construction. The analysis and recommendations submitted in this report are based upon the data obtained from the soil borings and
tests performed at the locations as indicated on the Boring Location Diagram and other information referenced in this report. This report does not reflect any variations, which may occur
between the borings. In the performance of the subsurface exploration, specific information is obtained at specific locations at specific times. However, it is a well-known fact that
variations in soil and rock conditions exist on most sites between boring locations and also such situations as groundwater levels vary from time to time. The natltre and extent of variations
may not become evident until the course of construction. If variations then appear evident, after performing on-site observations during the construction period and noting characteristics
and variations, a reevaluation of the recommendations for this report will be necessary. 6 
APPENDIX Boring Location Diagram Boring Location Diagram Boring Logs Unified Soil Classification System Reference Notes For Boring Logs Swell Test Results 
j l>' ~ ~ i ! .---,--,--_j ~ N B-3 t i ~ ,., P6 B-2 -~ i' i P2 P4 1 ' ! ! .J ! I ~ ' . J B-1 i ~ '----I i l L___ I I 0e .---50' 100' I I BORING LOCATION DIAGRAM Ecs..TD Project No.:
3674 I AGURE 1: HANGAR MODIACATIONS ! ADDISON AIRPORT Dale: 12/19103 ADDISON, TEXAS 
----1 . ; N Q ~ ; ~ -.-·! I , I 1 0 B-4 R2 Ql BORING LOCATION DIAGRAM FIGURE 2: HANGAR MODIFICATIONS ADDISON AIRPORT ADDISON, 1EXAS 0 ~ N t B-5 0 50' 100' &---Project No.: 367 4 Date:
12/19103 
CIJENT JOB # BORING # SHEET Town of Addison 3674 8-1 1 OF 1 EcsLTD PROJECT NAME ARCIIITECT ENGINEER Hangar Modifications SITE LOCATION Addison Airport 15~ DESCRIPTION OF MATERIAL g --"'
~ U'! g "' ~ "'"' ,;:-.... :l "' ~"'-" g g " 0 [ ~ o .. ~"' 0 ~ "'" 0: o""' c ~ "' 0 0 "co. I: ~ " ... 0 ~ o;;,. "' " ~ .. ; ~ "' z 1;; _,. ENGIJSH UNITS .. "' 1: " 0: ~s .. ...... z ~ " ~ g :l :l [::! :;; o..~iJ .. " " "' z., c 9 ~ ~ ~ c
~ ~ 0 SURFACE ELEVATION ~ co.., " ,: .. ~""' ,. " .. c "' 0.0 0 z,. "' a a "' "' "' .,,. " "' ""' c ::l .. .. ., "' 0 -1 ST 12 CLAY (CH), dark brown, trace 0.0 ~ 33.1 :•4500 limestone,
very stiff ............ -2 ST 12 1.0 33.8 :•4500 Bl 32 49 100 . . . . . . . . . . . . ... -3 TCP 12 2.25 LIMESTONE, tan, with clay : layers ....... -5--:: 100 ....... -4 TCP 12 T.5 ..
.. -ao .. .... -5 TCP 12 100 LIMESTONE, gray 0.75 ....... ... -10--------100 ... ... -6 TCP 12 0.25 15-·····-····· ..... -END OF BORING @15.0' ---: : 20-: : : : : 25-: --------so-1----LTHE
STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BET'JEEN SOIL TYPES IN-SITU THE TRANSITION MAY BE GRADUAL WATER LEVEL OBSERVATIONS BORING STARTED 12-09-03 Groundwater seepage
was not observed wl'lllo advancing, or at the completion of drilling the boring. BORING COMPLETED 12-09-03 CAVE IN DEPTH 0 RIG 8-24 FOREMAN DRIIJ..ING METHOD 
CLIENT JOB # BORING # SHEET Town of Addison 3674 B-2 1 OF 1 Ecs..TD PROJECT NAME ARCIIITECT ENGINEER Hangar Modifications SITE LOCATION Addison Airport DESCRIPTION OF MATERIAL E U~'l
; E !;; [;j r;:-~ ~ ~~-" .. E 1.:1 0 g ~ o .. ~ ~ 0 0:~ ~~~ ~ "' 0 0 ~ "' ~ ~ ... 0 ~ o., 0: " ~ z "' ~ " ~ £3 ENGLISH UNITS I ., :! :! !"i! "'~~ ifi " ill . .., "' z., !!. " ~ ~ ~ "
~ ~ ~ t:e; SURFACE ELEVATION "[;j ., .. ~ ~8~ t; a "' "a " "' ~"' " ::l "' "' " 0: 0 -I ST 12 (FILL) CLAY, ton, with 0.0 :rt-~ 17.9 :•9000+: limestone fragments ~·~~.:·-.... ..... .....
.... ..... ..... ..... ..... -2 ST 12 ~0 ,;,-::..: 18.1 :•9000+: 44 20 24 . . . . . . . . . . . ..... ... ... ... -3 ST 12 CLAY (CH), dark brown, trace 3.0 ~ 35.0 :•4500 : ··········
..... .... ... ... .. ..... -4 TCP 12 01.0705 limestone pieces, very stiff I ........ ... .... .... .. ... .. 5-= LIMESTONE, tan, with clay : layers -7.0 ······· .. .... ..... .....
..... ····· ..... -5 TCP 12 ~g LIMESTONE, gray .......... ... ..... ..... ... : 1 a-= : -······ ....... .... ... .... .. .. .. -6 TCP 12 100 0.75 . . . . .. . . . . . . . . . .. .. .....
... .. ..... ---END OF BORING @13.0' 15----------20-: : : : : 25-:: : : ----30-----'--THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETIJEEN SOIL TYPES IN-SITU THE
TRANSITION MAY BE GRADUAL WATER LEVEL OBSERVATIONS BORmG STARTED 12-09-03 Groundwaf•r u•pag• was not •ncounhln~d whll• advanolng. or at lh• compl.tlon of BORmG COllPlEI'ED drilling th•
boring. 12-09-03 CAVE IN DEPTH e RIG 8-24 FOREIIAN DRILLING WETHOD 
C!JENT JOB # BORING # SHEET EcsLTD Town of Addison 3674 8-3 1 OF 1 PROJECT NAME ARC!llTECT ENGINEER Hangar Modifications SITE LOCATION Addison Airport @l~ DESCRIPTION OF MATERIAL g _,
6 "-"' g "' .. """ 0: z ., .. ~ "' ~"'-" g g >< 0 ~ .. Oo. ~ "' 0 ~ 0::~ z o""' 0 "' "' 0 0 "'oo. 1:: .. Si " .. 0 ~ o., "' " ~rg; 5I 0: z ~ _., ENG!JSH UNITS .. "' "' :J 5 " .. •o "
"' "'!::'" z :J " g .. :l :l r:: ~_, !;! , io~ "' " "' "' z., 0 ~ ;:: ;:: ~ 0 .. .. 0 SURFACE ELEVATION ~ !;; :l :l '::! '::! " ,: .. 0 ""' ,. .. 0 [;l o.u Ze-"' g' a "' "' ., .. " "'
"'"' 0 .. .. "' "' 0 -I ST 12 CLAY (CH), dark brown, trace 0.0 ~ 20.7 :•9000+: limestone pieces, hard ·-· ... -2 ST 12 2.0 31.0 :•5000 . . . . . -. . . . . . . . . . -3 ST 12 CLAY (CH),
brown, trace ~ 27.9 :•6500 : 74 27 47 limestone pieces, stiff . . . . . . . . . . . . . . . -4 ST 12 very 27.3 :•7500 : 4.0 .... --........ -5 ST 12 CLAY (CH), tan and brown, trace 5.0
~ 17.1 :lll5500 : 5 -\ limestone pieces, stiff ... very 100 .... ... .... -6 TCP 12 1.5 LIMESTONE, tan, with clay ....... ....... : layers -100 .... ......... -7 TCP 12 T.O 10-.......
... : 12.0 ..... -8 TCP 12 100 LIMESTONE, gray 2.25 ....... : -15-: 100 ....... ....... -9 TCP 12 0.75 .. ........ --END OF BORING @17.0' ---20-. -------: 25-:: : : : : 30-f-.---LTHE
STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BET'JEEN SOIL TYPES IN-SITU THE TRANSITION HAY BE GRADUAL WATER LEVEL OBSERVATIONS BORING STARTED 12-09-03 Groundwater seepat;~e
was not observed while advancing, or at the completion of drilling the borlnt;~. BORING COMPlEI'ED 12-09-03 CAVE IN DEPTH e RIG 8-24 FOREliAN JA DRILLING YETHOD 
CUENT JOB # BORING # SHEET = Town of Addison 3674 8-4 1 OF 1 EcsLTD PROJECT NAME ARCiflTECT ENGINEER Hangar Modifications SITE LOCATION Addison Airport t'l~ DESCRIPTION OF MATERIAL g
~ g ~ -., ... "'"' ,;:-z ., .. "' ~ "' ~"-<.> g g >< 0 g ... 0<. !:. "' 0 ~ "'" z o'-'"' Q N "' 0 0 C:c~ i; ... " "' ~ o';n-.. <.> ~ § "' 0 .. ~[;!i!: i; " z i:: -"' ENGIJSH UNITS "'
"' ... !...S .. z ::3 ~ .. ~ ~ ~ ~ => "'~" "' <.> <.> E "' "'"' io~ Q 13 " " ~ Q .. .. SURFACE ELEVATION ~ ~ => :l :l ':! ':! <.> ..: .. '-'o: i:: .. Q [;l 0.<.> §l ~!;; a a "' ., .,,.
" Q ::3 .. .. " .. 0 -1 ST 12 CLAY (CH), dark brown, trace 0.0 ~ 34.9 :•3500 calcareous nodules, very stiff . . . . . . . . . . . . -2 ST !2 36.9 :•4000 83 31 52 ~ .... --...... -3 ST
12 36.3 :•3000 . . . . . . . . . . ' . -4 ST 12 4.0 33.6 :•3500 . . . . . -. . . . . . -5 ST 12 CLAY (CH), tan, with limestone 5.0 ~ 25.2 :•3000 50 21 29 5 -pieces, stiff . . . . . .
. . . . . . : LIMESTONE, tan, with clay 100 layers ....... -6 TCP 12 2.0 ...... ..... -9.0 ....... ..... ..... ..... -7 TCP 12 100 LIMESTONE, gray 10-1.25 ....... .... ------100 .......
.... -8 TCP 12 0.75 15-....... .... .... ! -END OF BORING @15.0' ---: : 20-: : : : : 25----------30-I----'--THE STRATIFICATION LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BET\JEEN
SOIL TYPES IN-SITU THE TRANSITI[]N HAY BE GRADUAL WATER LEVEL OBSERVATIONS BORING STARTED 12-09-03 Groundwater seepage was not observed while advancing, or at the completion of drilling
BORING COMPLETED 12-09-03 CAVE IN DEPTH e the boring. RIG B-24 FORE!dAN JA DRILLING METHOD 
CLIENT JOB # BORING # SHEET EcsLTD Town of Addison 3674 8-5 1 OF 1 PROJECT NAME ARCHITECT ENGINEER Hangar Modifications SITE LOCATION Addison Airport 1§~ DESCRIPTION OF MATERIAL g __,
6 uo g " .. "'"' ;;:: z ~r.-~ " " g g " a ~ !;; ao. e:. " a ~ Q " "'" a""' t: " N a a "'co. 1:: .. .. ci ~ a;;,. "' " ~~; ::s "' .. ~ :J 1:: " z ,. ~ ENGUSH UNITS " "' ~ .. "' !-9 "
"' "!:;'" z g fj fj ~ ia~ " " " "' .... 12 " Q Q ., ., ~ Q ~ ~ 0 SURFACE ELEVATION ~ f;; s 3 3 " '"'"" i5 ""' ,. Q [;! o.u !§&; "' a " "' "''" " ::s Q :J .. .. " "' 0 -I ST 12 CLAY (CH),
dark brown, with 0.0 ~ 17.3 :•6000 limestone pieces, very stiff ... -2 ST 12 31.5 :•ssoo 86 32 54 20 .... -3 TCP 12 100 LIMESTONE, tan, with clay 3]" layers ....... : -5-:: : 7.0 100
....... -4 TCP 12 0.75 LIMESTONE, gray ....... ..... ---10--100 ..... -5 TCP 12 0.50 ..... ...... --END OF BORING @12.0' ---15------: : 20-:: : : : : 25----------so-f----L__ THE STRATIF'ICATIDN
LINES REPRESENT THE APPROXIMATE BOUNDARY LINES BETIJEEN SOIL TYPES IN SITU THE TRANSlTION MAY BE GRADUAL WATER LEVEL OBSERVATIONS BORING STARTED 12-09-03 Groundwater seepage was not
observed while advancing, or at the complollon of drilling BORUm COMPLETED 12-09-03 CAVE IN DEPTH 0 the boring. RIG 8-24 FOREIIAN JA DRILLING METHOD 
REFERENCE NOTES FOR BORING LOGS I. Drilling and Sampling Symbols: SS -Split Spoon Sampler ST -Shelby Tube Sampler RC -Rock Core: NX, BX, AX PM -Pressuremeter DC -Dutch Cone Penetrometer
TC -Texas Cone Penetrometer RB -Rock Bit Drilling BS -Bulk Sample of Cuttings PA-Power Auger (no sample) HS -Hollow Stem Auger WS-Wash Sample Standard penetration (blows/ft) refers to
the blows per foot of a 140 lb. hammer falling 30 inches on a 2 inch O.D. split spoon sampler, as specified in ASTM D-1586. The blow count is commonly referred to as theN-value. Texas
cone penetrometer (blows/in) refers to the penetration of a 3-inch diameter cone after the cone is driven I 00 blows with a 140 lb. hammer falling 30 inches. This is a modification of
the Texas Department of Transportation test method TEX-132-E that requires a 170 lb. hammer falling 24 inches. IT. Correlation of Penetration Resistances to Soil Properties: Relative
Densitv-Sands, Silts SPT-N 0-3 4-9 10-29 30-49 50-80 Relative Density Very Loose Loose Medium Dense Dense Very Dense ill. Unified Soil Classification Symbols: GP-Poorly Graded Gravel
GW-Well Graded Gravel GM -Silty Gravel GC -Clayey Gravels SP -Poorly Graded Sands SW -Well Graded Sands SM -Silty Sands SC -Clayey Sands IV. Water Level Measurement Symbols: WL-Water
Level WS -While Sampling WD -While Drilling AB -After Boring Completion Consistency of Cohesive Soils Unconfmed Compressive Strength. Oeo..Mf Consistency under 500 Very Soft 500-1,000
Soft I ,000-2,000 Firm 2,000-4,000 Stiff 4,000-8,000 Very Stiff 8,000-16,000 Hard over 16,000 Very Hard ML -Low Plasticity Silts MH -High Plasticity Silts CL-Low Plasticity Clays CH
-High Plasticity Clays OL -Low Plasticity Organics OH -High Plasticity Organics CL-ML-Dual Classification (Typical) BCR -Before Casing Removal ACR-After Casing Removal WCI -Wet Cave
In DC! -Dry Cave In The water levels are those water levels actually measured in the borehole at the times indicated by the symbol. The measurements are relatively reliable when angering,
without adding fluids, fluids, in a granular soil. In clays and plastic silts, the accurate determination of water levels may require several days for the water level to stabilize. In
such cases, additional methods of measurement are generally applied. I:\geotech\standoc\refnotes2.doc 
. Unified Soil Classification System (ASTM D-2487) Major Divisions Group Symbols Typical Names " N ·~ !!:! " ·~ 0 0 N 0 z c -;;-a..-.. CJ) ctl :g_~ ~~ GW Well-graded gravels, gravelsand
mixtures, little or no fines e~ OQ ..... Q.I (;c aio ~-~ c6 ~o 5 en g cu GP Poorly graded gravels, gravel-ij ~ en 8 v (J 3:: sand mixtures, little or no fines v o Q:i.._ 0 2 Nz ~ oz
~~=-+---r--r--------------------------~·00 c ~ CJ) ..-... I o (!) ::: c <P en d S'lt I ,_c -F: · • o 0 .!: ct1 0 1 Y graves, gravel-sand-silt 0 -IJJ ....c::: :5 ..... ct1 c GM r-mixtures
L.. "-3: c ..c::O:.:: u 0"_5!?..Q ~o..... --o ,_ ·;; ·u-o '----'---+-----------------------------1 E o o ....c::: Q,) ""' I 0 E ..... !!!_ g ...... ~ e..... L..C/)"' 0 UJQ.C: ..... ~
:5 e-Q.i ~ 5 GC Clayey grovels, gravel-sand-_ c o -o :U ~~.-~ ~ ..._, E cloy mixtures ~ ~ ~ Q) !=" -t5 o o o·-.S .§ 1-----+=--:::::-+-----t-----------------------------i 5, ~ ~ ~ c..-..
~ ~~~ ?' .!!? :8 ~ <n c: SW Well-graded sands, gravelly c: en 0 o ·-""C ..-:::: sands, little or no fones 0 <> Q) 0 CUI C -o.£e ~ 'i: .!:ct~ ~g c:.._o 8~ <D~c.... gO.!!? E ~ ·u; 0 0
Poorly graded sands, gravelly ..... Q) ·o 0o'V ~OJ SP 0 "'"' 0 rn 0 • u 3:: sands, little or no fines fl) ..8" .._ "tJ.._O 2 IPc:W 0 § 0 z 1---'=--+---,-+----------------------------1
8' ~ -~ ~ (/)-c cr.~, Q;' d ca;2 0 ° a u" "' "'1 c ~ ::5 r:::: w SM -Silty sands, sand-silt mixtures o -.::::~,2 a>ciU :5 c._ ...... U a.O~ Laboratory Classification Criteria .0 °so
~ Cu = ~ 0 greater .c than 4· between 1 and 3 ~~------------------------------------1 0 Not meeting all gradation requirements ::J for GW '0 ~~------------------.-----------------~ ·c
'3 C1' ~ Atterberg limits below "A" line or P.l. less than 4 ~u"' 1---------------------i lnVl~ ~ _ 0 Atterberg limits below Above "A" line with P.l. between 4 and 7 are borderline cases
requiring use of dual symbols ;:: ::::!: o "A" line with P.l. ln ln 1t1 greater than 7 a.:-u:§I-__________________ _J ____________________ -1 ~~~ ~:::::E~ <!I <!I~ than 6· between Not
meeting all gradation requirements for SW Atterberg limits above "A" line or P.l. less than 4 1 end 3 o " ,:5_ ,ou_ ~o '-----'--t----------------------------1 o ~= r IU~O ......c 3:~......
ceo tg~.B IU E a. c:: Cl d d 1 ·e :0 ~ Q) o Atterberg limits above Limits plotting in hatched zone with P.l. between 4 and 7 ore borderline cases requiring use of dual a tr.l -g~g sc
?Ytey sanS, san -cay .... ~Q) ....J::::!Ell) "A" line with P.l. .,;:E~.!!! 0 ._ E m1x ures 2 c. > I' ~----+-------L~----"-+-----1~====~~~~--~~--~----~~~o="~·~~~----_l_g_r_e_a_t_e_r_t_h_a_n
__ 7 ______ _JL_ __________________ ~ Inorganic silts and very fine symbols ML CL OL ~§! "' " " ~o·w sands, rock flour, silty or clayey fine sands, or clayey silts with slight plasticity
Inorganic clays of low to medium plasticity, gravelly clays sandy clays, silty clays, lean clays Organic silts and organic silty clays of low plasticity Plasticity Chart I I I I 1 I
I I I I I I I 1 I I I I I I I I I I I I 50~--r--r--r--r--T--;--;--;-----1 I I I 1 I I I I X I I I [ 1 ICH I I "' Eo 1------+----1-------------i w IIII,LIIJI "40C..--r--r--r--T--~--,--,-~--,---'0~0
I <LI 0 C'\1 ! c: ·o:: o t;._g z ~cc ce 0 ! li: :5 :5 ~ ~~ oo "'E . ~ .. ' Inorganic silts, micaceous or MH diatomaceous fine sandy or silty soils, elastic silts CH OH Pt Inorganic clays
of high plasticity, fat clays Organic clays of medium to high plasticity, organic silts Peat and other highly organic soils .=: I I I I I I I I ~ I I I I 1 I I I I ·.u-_ 30 '---'---L-_L
__ l_ __ .c __ I _...t __ .J __ .J __ _ --I I I I I oz., L I I ;; 1 1 1 1 ,1'-~ I OH and MH o I I I I •''?': I t 1 I ~ 20---L--L--L--.L-+--.l--0 --0 --0 ---1 ICL I I I I I I I I I 1
1 I I I I I 1 1 I I I 10 --.LCL-M~~ -~--r--.L--}--t--+--~~~"(1 ML and : 1 1 1 1rzi t/1 !OLI 1 I ! I 0 o 10 20 30 40 50 60 70 80 90 100 Liquid Limit a Division of GM and SM groups into
subdivisions of d and u are for roads and airfields only. Subdivision is based on Atterberg limits; suffix d used when L.L. is 28 or less and the P.l. is 6 or less; the suffix u is used
when L.L. is is greater than 28. · 0 Borderline symbols. classifications, used for soils possessing characteristics of two groups, are designated by combinations of group For example:
GW-GC, well-graded gravel-sand mixture with cloy binder. 
BORING SAMPLE DEPTH LIQUID (ft) LIMIT B-1 2 1-2 81 B-3 3 2-3 74 B-4 5 4-5 50 B-5 2 1-2 86 SWELL TEST RESULTS HANGAR IMPROVEMENTS ADDISON AIRPORT ADDISON, TEXAS ECS JOB NO. 19-3674 PLASTIC
PLASTICITY INITIAL LIMIT INDEX MOISTURE (%) 32 49 33.8 27 47 27.9 21 29 25.2 32 54 31.5 FINAL LOAD % MOISTURE (psi) SWELL (%) 34.6 125 1.5 29.4 250 1.2 27.3 500 0.0 33.4 125 2.0 
ENGINEERING CONSULTING SERVICES, LTD. 4950 Keller Springs Road, Suite 480 Addison, Texas 75.001 (972) 392-3222 
ECS.LTD. PLEASE REMIT TO: ENGINEERING CONSULTING SERVICES, LTD. 14026 THUNDERBOLT PLACE, SUITE 100 CHANTILLY, VIRGINIA 20151-3232 CUSTOMER CODE 332305 TO: Mr. Jim Pierce Town of Addison
P.O. Box 9010 Addison, TX 75001 For services provided by ECS, Ltd. through 12/23/03 Department: 001 -Drilling Field Exploration Services Subtotal: Department: 002 -Soils Lab Laboratory
Testing Services Subtotal: Department: 003 -Engineering Engineering Services Subtotal: 1.00 1.00 1.00 Page 1 of 1 INVOICE DATE 12/24/03 SPECIAL INSTRUCTIONS \\ I( T Hangar Modifications
1 ~o 1 /5 v2epoi1" Addison Airport Addison, Texas LS $755.00 001 LS $588.00 $588.00 002 LS $657.00 $657.00 003 ******************** ******** * ********* ******** • Invoice Total -Please
Remit $2000.00 ******************** ********** ******** ******** If you have any questions regarding this invoice, please contact Chris Eddy at 972-392-3222 *BUDGET SUMMARY* Budget Estimate:
Previous Invoices: Ami. This Invoice: Ami. Remaining: $2000.00 $0.00 $2000.00 $0.00 Client Copy ONLY*** -Dept. 001 ""'''o·l'u -Dept. 002 -Dept. 003 AFTER 30 DAYS. 
Nov-ZC-2003 02:13pm From-4950 Kollor Springs Road, Suite 480 Addison, TX 75001 To: (972) 392-3222 (FAX) 392.0102 Mr. Jim Pierce Town of Addison P.O. Box 9010 Addison, TX 75001 Phone:
(972) 450-2860 I From: Chris Eddy Copies of Insurance Certificates Originals to Follow Via: D Mail 0 FedExJUPS Remarks: 0 Urgent 0 Reply ASAP 1723920102 T-218 P.OOI/005 F-263 Fax Cover
Sheet Date: November 20, 2003 # of Pages (incl. cover) 5 Fax: (972)450-2837 D Courier [!) N/A 0 For Your Review 0 Please Comment ----------------------.. ---·----------------------___________________
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100 Chantilly, VA 20151 1---------1-1 POLICV 1x1 ':r§; n "~ I EO LIABILITY ~ ANVAUlO r ALL.OWNEOP:\JTOS f-:-:-SCHEDULED A~OB [K MIRIOD AUTOS ~ NON-OWNIOD AUTOS 1-------~ ~AQE LIA~IU1V
1--ANY A.UTO 97Z3920J 02 INSURERS AFFORDING T-219 P.OD4/DD5 F-263 ;.;, ; NOT AMEND, I BY THE DAle (MMIDDIVYYY) 11/17/03 I INSuRER AI rwin City Fire Insurance I 29459 37478 I•••"••• "'
I otthe I i l~••c' 'ed~ I ONSURER ., I '"""'" ,, 04/01/03 04/01/03 04/01104 04/01/04 GENE"-'L COMBINEO 61NGLe LIMIT \ED aecidar'll) BODIL V INJURY (Per peracn) BODILY INJURY (Pot Ooc.ICI'oniJ
PRCP'EA'J'Y CAMAO.E (Par actidanlj _AUTO ONLY _20281 ,, nnn nnn 11,000,000 • • • OTHERTHA.N AVTOONL'I': EAACC ~ •••• o AOILII'Y o •• • ,_, y 04/01/03 04/01/04 ~ OCCUR 0 CLAIMS MADE '-~n
nnn nnn ' OE&C"IPTION OF DP~RA.TION& I LOCATIONS /VEHICLES I EXC:I.UIION& ADDEP BY ENgQ"&EiwlENT I SPECIAl. PAOV/Ii/ONS RE: Verification of coverage CERTIFICATE HOLDER For Bidding Purpose
a CANCELLATION 81'10ULD ANY OF THE ABOVE gucRIBED POJ.ICIES BE CANCELL!D BE PORI! Tit! I!XPIRATION DATE lHERECF, THE IB8UINO INSURER WILL iND~VOR TO MAIL .....1.5... DAYS WRln~ NOTICE
TO THE CERTIF1CATE HOLDER NAMeD TO TWE LEn, bUT FAILURE 10 PO eo liHALL IMPOSE NO ODLIOATION OR LlABli.ITY OF A"'V KIND UPON THE INSURE!R, ITS AGI!NTS OR 
Nov-2~-ZOO! 02: \4pm From· 172!120102 T-219 P.005/005 F-26! IMPORTANT If lhe certificate holder is an ADDITIONAL INSURED, the policy(ies) must be endorsed. A statement on this certificate
does not confer rights to the certificate holder In lieu of such endorsemem{s). If SUBROGATION IS WAIVeD, subjeC1 to the terms and conditions of the policy, certain policies may require
an endorsement. A statement. on this certificate does not confer rights to the OOrtificate holder in lieu of such endorsement(s). DISCLAIMER The Certificate of Insurance on the reverse
side of this form does not constitute a contract between the Issuing insurer(s), authorized representative or producer, and thu certificate holder, nor does it affirmatively or negatively
amend, extend or alter the coverage afforded by the policies listed thereon. ACORD 25•6 (2001108) 2 of Z tiS603/M594 
11/18/2003 TUE 17:01 FAX 214 522 6796 Structural Services Inc. ~ 001/003 GUNNIN CONSULTING ENGINEERS, INC Mailing Address: Delivery Address: P. 0. Box 820457 Dallas, Texas 75382-0457
Phone: 214-528-3796 3303 Lee Parkway, Suite 325 Dallas, Texas 75219 e-mail: gunningcei@aol.com FACSIMILE COVER SHEET DATE: November 18,2003 TO: Mr. James C. Pierce, Jr., PE, Town of
Addison FROM: Bill L. Gunnin JOB NAME: Tee-Hanger Doors Addison Airport JOB NUMBER: 451 FAX NO: TOTAL NUMBER OF PAGES, INCLUDING THIS SHEET: 3 HARD COPY OF TRANSMISSION TO FOLLOW? YES:
FAX: 214-522-6796 972-450-2837 NO: X PLEASE CALL 214-528-3796 IF COMPLETE TRANSMISSION IS NOT RECEIVED. 
11/18/2003 TUE 17:01 FAX 214 522 6796 Structural Services Inc. Fra}n: MaLaughllrtBnm:o:an 214-503-8899 To: m• Gunnlll Date: 11/Uif2003 Time: 4:50:46 PM @002/003 Page 2 af 2 ACORD CERTIFICATE
OF LIABILITY INSURANCE I DAlE ,. 11/18/2003 RODUCER McLaughlin Brunson Insurance Agency THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE
9535 Forest Lane HOLDER. THIS CERTIFICATE DOES NOT AMEND, EXTEND OR Suite 118 ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. Dallas TX 75243 INSURERS AFFORDING COVERAGE a5UREO Gunnin
Consulting Engineers, Inc. INSURER., Lum bennans Mutual Casual tv Com oanv (Kemner) P. 0. Box 820457 INSURER 8: Dallas TX 75382 INSURER C: INSURER 0: I "'"D'RE' "OVERAGES THE POLICIES
OF INSURANCE LISTED BELOIVHAVE BEEN ISSUED TO THE INSURED NAMEDABOI/EFORniE POLICY PERIOD INDICATED. NOTWlTHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OlHER DOCUMENT
WITH RESPECT TO WHICH \HIS CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY'TliE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL niE TERMS, EXCLUSIONS AND CONDITIONS OF
SUCH POLICIES. AGGREGA.TE LIMITS SHO\NIIol MAY HAVE BEEN REDUCeD BY PAID CLAIMS. SR TVPF: OFI POLICV !"UMBER POLICY EFFECilVE POLICY ExPIRATION LIMITS ~t£1\AL LIABILfTY EAo-1 OCCURRENCE
Is r-3MMERCIAI.. GENERAL LIABILITY FIRE DAMAGE !AnY ono lro Is r-a.AIMS MADE D OCCUR MEDEXP An ""' Is I PFR.C::(lNAJ A MW IN.liRV I. GENERAL AGGREGATE Is n~ AGG~EnEIL~IT APPnS1PER: .COMP/OPAGG
Is I POl IC PRO· LOC rWOMOBILE LIABIUTY COMBINED SINGLE LIPrliT r-ANY AUTO lEa !Kddonl) • r-ALL O'M'IEO AUTOS BODILY N.NRY -SOiEOULED AUTOS jParpgrson) ' -HIRED AUTOS BODILY IN..UR"f
' ~ NON.O'w\NEO AUTOS IPontcc:idenl) -PROPERTY OJIMAGE {Peracc:iclenl) • ~RAGE LIABMY AIJTO ONLV -EAACCIOENT Is ANY AUTO OTHER THAN EAACC Is JUJTO ONLV: AGG EXCESS LIABiliTY EACH OCCURRENCE
Is ~:::roccuR D CLAIMS MADe AGGREGATE s I' HDEDUCTIO.E Is RETENTION s Is WORKERS COMPENSA.TIONAKI WCSTATU-., I OTH· EMPLOYERS" LIABILITY E.l. EACH ACCIDENT I. E.L. DISEASE· EA EMPLOYE
Is I • ' OISFA"'. ""' oov liMIT I• o~ofessional QL0!9007-00 01/10/2003 01/1012004 $ 500,000 per claim/ann! aggrgt ESCRIP110N OF OPERAllDNSILOCA TlONSNB-ACLESIEKQ.USIONS ADDED BY ENDORSEMENT/SPECIAL
PROVISIONS E: Addison Allport "T" Hangars. The claims made professional liability coverage is the total aggregate limit for all claims resented within the annual policy period and is
subject to a deductible . .eference Job: Addison Banner Cable Support :ERTIFICATE HOLDER I I ' "'"'"''" ON'"DERL=o, CANCELLATION Town of Addison, Public Works/Engineering SHOULDAN'f
OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRA110N DATE TliEREOF, THE ISSUING INSURER WILL EMJEAVOR TO MAIL _____..!E_ DAYS WR!ITEN P .0. Box 9010 N011CE TO TIE CERT1F/CA.iE
HOLDER NAMED TO iHE LEFT, EIU1" FAILURE TO 00 SO SHAU Addison TX 75001-9010 IMP06E NO OBLIGATION OR LIABILITY OF ANt KIND UPON THE INSURER, rTS AG91TS OR REPRESEfli"ATrVES. AUTHORIZED
REPRESENTATIVE f'la:t:iUI?... p. M .Dr. _on.' I ,coRD 25-s (7/97) ®ACORD CORPORATION 1988 11/18/2003 TUE 16:54 [JOB NO. 7583 J @002 
Public Works I Engineering 16801 Westgrove • P.O. Box 9010 Addison, Texas 75001-9010 Telephone: {972) 450-2871 • Fax: {972) 450-2837 DATE JDBND. ATTENTfON RE: GENTLEMAN: _; WE ARE SENDING
YOU ~Attached 0 Under separate cover via ______ the following items: 0 Shop Drawings 0 Prints 0 Plans 0 Samples 0 Specifications 0 Copy of letter 0 Change order 0 ________________________
__ COPIES DATE NO. DESCRIPTION J iJ"" '-" 0 V1\ 0 . :__/----1m iu & r-h L-f' /3i,:-pfi'Jr'<?.~ .£ .J~ vlcec.; £c:s f?v ,r 1~ .1 I tJ-'1 '-f s-o -r-,-P THESE ARE TRANSMITTED as checked
below: 0 For approval p[ For your use 0 As requested 0 Approved as submitted 0 Approved as noted 0 Returned for corrections 0 Resubmit ____ copies for approval 0 Submit copies for distribution
0 Return corrected prints 0 For review and comrnent 0---------------------------0 FOR BIDS DUE ___________ 19 _ __ 0 PRINTS RETURNED AFTER LOAN TO US REMARKS _________________________________________
________________________ _ COPY TO ----------------------------------SIGNED: ~ If enclosures are not as_ noted, please notify oonc:----= 
ENGINEERING CONSULTING SERVICES, LTD. Geotechnical • Construction Materials • Environmental Mr. Jim Pierce Town of Addisill! · P.O.·.Box 9010-Addison, Texas, 75001 Reference: Proposal
for Subsurface Exploration Services Hangar Modifications Addison Airport Addison, Texas ECS Proposal No. 19-1450-GP Dear Mr. Pierce: November 7, 2003 As requested, Engineering Consulting
Services, Ltd. (ECS, Ltd.) is pleased to present the following proposal for providing subsurface exploration services and geotechnical engineering analysis of the proposed site for the
above referenced project. We understand the project consists of modifying the hangar doors on five hangar structures at the referenced site. Scope of Services If authoriZed, our integrated
services will include drilling of soil borings by drill crews under cl'fu. direct supervision, laboratory testing of representative soil samples for pertinent engineering properties,
and preparation of an engineering report. As requested, five borings will be drilled in the building area to a depth of about 20 feet below existing grade or 5 feet into unweathered
rock, whichever is shallower. We understand the drilling operations will be performed near existing structure. We will attempt. to minimize the amount of disturbance to landscaping and
flatwork (i.e. sidewalks, driveways) while accessing the boring locations and during the drilling operations. However, rutting of the lawn areas and cracking of flatwork may occur in
areas the drill rig will travel. ECS, Ltd. and its representatives will not be responsible for repairing or replacing any landscaping or flatwork that is damaged while accessing the
boring locations or during the drilling operation. Upon completion of drilling operations, the samples will be subjected to laboratory tests (that can include moisture content, Atterberg
limits, unconfined compression, andswell tests) followed by the preparation of a written engineering report. 4950 Keller Springs Road, Suite 480, Addison, TX 75001 • (972) 392-3222 • FAX (972) 392-0102 • www.ecslimited.com
Aberdeen, MD• ·Atlanta. GA ·Austin, TX ·Baltimore, MD· Chantilly. VA· Cho.rloue. NC ·Chicago. IL ·Cornelia. GA• ·Dallas, TX Danville, VA· Frederick, MD · Fredericksburg. VA ·Greensboro.
NC · Greenville. SC ·Norfolk, VA· Orlando. FL · Research Triangle Park. NC Richrriond, VA · Roanoke. VA · San Antonio, TX · Williamsburg. VA · Wilming10n. NC · Winchester. VA •resting
Services Only 
Town of Addison ECS Proposal No. 19-1450-GP November 7, 2003 The engineering report will include the following items: a. Information on site conditions including surface drainage, geologic
information and special sit~ features. b. DescriptiG-n ofthe field exploration and laboratory tests performed. c. Final logs' of the soil borings and records of the field exploration
in accordance with the standard practice of geotechnical engineers. A site location plan will be-included, and the results of the laboratory tests will be plotted on the final boring
logs or included on a separate testreport sheet. d. Geotechni<\aJ design parameters for footing foundations (if appropriate), and drilled shafts (mot~ commonly used in this formation),
and estimates of predicted foundation ) mov.ement. e. Compaction requirements and suitable material guidelines for grading the site. Fees and Schedule The lump sum cost of the services
outlined above will be $2,000.00. This lump sum cost includes 3 copies of the engineering report. report. We are prepared to mobilize onto the site within 3 to 4 working days after authorization
to proceed, ~e~J:her permitting. We anticipate that <)rilling operations will require approximately_ 1 working day, and that laboratory testing after drilling is completed will require
approximately'4 working Q,ays. Therefore, for time budget purposes, the total scope of work could require as much as 2 to 3 weeks from initial authorization through final report submission.
II other items are required because of unexpected field conditions (i.e. site clearing, wet site conditions, etc.) encountered in our field exploration program, or because of a request
for additional services, they would be invoiced in accordance with our current Fee Schedule. Before modifying or expanding the extent of our exploration program, you would be informed
of our intentions for both your review and authorization. If requested, we can review plans and specifications for the referenced project to determine general compliance with the geotechnical
engineers recommendations. We can also provide additional consultation and engineering analysis for you on other problems related to performance of the structure and subsurface conditions.
These services can be provided at the unit rates outlined in the attached fee schedule, and would be in addition to the fee outlined above. 2 I I I ! 
1 I r I ' ' ] ] l l ] ] ] 1 Town of Addison ECS Proposal No. 19-1450-GP November 7, 2003 Closing Attached to this letter, and an integral part of our proposal, are our "General Conditions
of Service". These conditions represent the current recommendations of the Association of Soil and Foundation Engmeers, the Consulting Engineers' Council, and the Geotechnical Division
of the· Americ.an Society of Civil Engineers. Our insurance ,carrier requires that we receive written authorization prior to initiation of work, and a signed contract prior to the release
of any work product. This letter is the agreement for our services. Your acceptance of this proposal may be indicated by signing and returning the enclosed copy to us·. We are pleased
to have this opportunity to offer our services and look forward to working with you on the project. Respectfully, ) :· ' I . . ENGINEERING CONSULTING SERVICES, LTD. sto er w. Edd;,{rO
Geotechnical Departme~~ger Enclosures: General Conditions of Service 3 Mark L. McKay, P.E. Principal Engineer . ..·-, -·, .· ... -... ·.·· .-.~ .. -... ~:~~:~:~_·f-~)ij~;;:i;_}:-;;,:;:.:.~~N:~
·-· 
Town of Addison ECS Proposal No. 19-1450-GP November 7, 2003 Engineering Consulting Services, Ltd. Proposal No.: S'cope ofWork: Location: PROPOSAL ACCEPTANCE 19-1450-GP Subsurface Exploration
Services Hangar Modifications Addison Airport Addison, Texas Client Signature: : . . ~ Date: //-( f'-0"3 Ple,ase complete 'this page and return one copy of this proposal to ECS, Ltd.
to indicate acdeptance of this proposal and to initiate work on the above-referenced project. The Client's signature above also indicates that he/she has read or has had the opportunity
to read the accompanying General Conditions of Service and agrees to be bound by such General Conditions of Service. BILLING INFORMATION (Please Print or Type) Name of Client: Name of
Contact Person: Telei)hone No. Of Contact Person: Party Responsible for Payment: Company Name: Person/Title Department: Billing Address: Telephone Number: Fax Number: Client Project/Account
Number Special Conditions for Invoice Submittal and Approval Towo of !Jdtitw Ji rn Prer? e.. P.o. Bot qoto 7 5&ol_: fO I D 4 
l ' ! ] ] I ] I ' t J I I f ] l l ENGINEERING CONSULTING SERVICES, LTD. GENERAL CONDITIONS OF SERVICE These General Conditions of Service, including any Supplemental Conditions of Service
which are or may become applicable to the ~ervices to be provided in the Proposal, are incorporated by reference into the foregoing Proposal and shall be part of tb,e Agreement under
which services are to be performed by ECS for Client. For the purposes of these General Conditions, ;'Agreement" shall mean the Proposal, these General Conditions, Supplemental Conditions
(if any) and Fee Schedule ' SECTION 1: SCOPE OF WORK a. The scope of work shall include all services provided by ECS, in its discretion, which are reasonably necessary and appropnate
for the effective and prompt fulfillment of ECS's obligations under the Agreement, including these General Conditions and any supplemental conditions incorporated herein; it being expressly
provided that all such sepices provided shall be invoiced and paid for in accordance with Section 3 below. '',. ' . bl It is undersiood that the scope of work and time schedule defined
in the Proposal are based on the information .. provided by Client. If this information is incomplete or inaccurate, or if unexpected conditions are discovered, the scope of work may
change, even as the work is in progress. If the Client requests additional services or when a change in the scope of work or time schedule is necessary, a written amendment to the Agreement
shall be executed by the Client and ECS as soon as is practicable and consent to such amendments shall not be unreasonably withheld. SECTION 2: CLIENT DISCLOSURES a. b. c. The Client
shall notify ECS of any known or suspected hazardous substances which are or may be related to the services to be pro\(ided. Such hazardous substances shall include but not be limited
to any substance which poses or may pose a present or potential hazard to human health or the environment whether contained in a product, material, by-product, waste or sample and whether
it exists in a solid, liquid, senti-solid or gaseous ·fu~ This duty to notify ECS of any such hazardous substances shall also apply to any of the "foregoing substances which ECS may
be provided or obtain or which exist or may exist on or near any prentises upon which services are to be performed by employees, agents or contractors of ECS. The Client shall notify
ECS of all such hazardous substances of which it has knowledge or which it reasonably suspects exist upon entering into this Agreement. Thereafter, disclosure and notification to ECS
shall be required inunediately upon discovery of any other hazardous substances or upon discovery of increased concentrations of previously disclosed substances where the increased concentration
makes them hazardous. · Following any disclosure as set forth in the preceding paragraph, or if any hazardous s11bstances are discovered or reasonably suspected by ECS after its services
are undertaken, ECS may, at its discretion, discontinue its services. Whether or not ECS discontinues its services in whole or in part, the Client and ECS agree that the scope of services,
schedule and the estimated fee or budget shall be adjusted in accordance with the disclosed jpformation or condition, and ECS may, at its discretion, terminate the Agreement. In the
event that the Agreement is terntinated pursuant to this Section, the Client shall pay ECS for services and all termination expenses as set forth in Section 11 of this Agreement. If
all or any part of the scope of work is to be performed in the general vicinity of a facility or in an area where dust, fumes, gas, noise, vibrations or other particulate or nonparticulate
matter is in the atmosphere where it raises a potential health hazard or nuisance to those working in the area of such conditions, Client shall notify ECS of such condition, potential
health hazard or nuisance and thereafter ECS shall take all necessary and reasonable measures to protect its employees against such possible health hazards or nuisances. The reasonable
direct cost of such measures shall be born by the Client. ECS Proposal No. 19-1450-GP Page 1 of5 11/92 
l 1 1 1 ' J J i l f f ] I ] r f' SECTION3: BILLINGSANDPAYMENTS a. b. c. d. e. Unless otherwise specifically provided in the Proposal or Agreement, billings will be based on actual units
used at the standard rates shown on the attached fee schedules, travel cost and other expenses. Such billings shall not be limited by the estimates of total, incremental or phase project
costs provided for information purposes in the Proposal. ., Client recognizes that time is of the essence with respect of payment of ECS's invoices, and that timely paYment is a material
part of the consideration of this Agreement. Client shall pay ECS for services performed in U.S. fimds drawn upon U.S. banks and in accordance with the rates and charges set forth herein.
Invoices'vrillbe submitted by ECS from time to time, but no more frequently than every two weeks, and shall be due and"'payable upon receipt. If Client objects to all or any portion
of an invoice, Client shall nevertheless timely pav the full amount of such invoice and Client shall notify ECS within fourteen {14) calendar days of the invoice date. of the cause of
disagreement and the portion of the invoice in dispute. Thereafter, ECS ana the Client shall make good faith effort to resolve such dispute. Client shan· pay an additional charge of
one-and-one-half (1.5) percent (or the maximum percentage allowed by law, whicl)eve< is lower) of the invoiced amount per month for any payment received by ECS more than thirty (30)
calendardays from the date of the invoice, excepting any portion of the invoiced· amount in dispute and resolved ;,i favor of Client Payment thereafter shall first be applied to accrued
interest and then to the principal unpaid anioimt. Payment of invoices is in no case subject to unilateral discounting or set-offs by Client. Application of the percentage rate indicated
above as a consequence of Client's late payments does not constitute any willingness on ECS's part to finance Client's operation, and no such willingness shonld be inferred. If Client
fails to pay invoiced amounts within thirty (30) calendar days of the date of the invoice, ECS may at any time, without waiving any other claim against Client and without thereby incurring
any liability to Client, suspend or terminate this Agreement. Termination shall not relieve Client of its obligation to pay amounts incurred up to termination. The Client's obligation
to pay for the services performed under this Agreement is in no way contingent upon Client's ability to obtain financing, zoning, approval of governmental or regnlatory agencies, final
adjudication of a lawsuit in whlch ECS is not involved, or upon Client's successful completion of the project. No deduction shall be made from any invoice on account of penalty, liquidated
damages or other sums withheld from payments to ECS. It is agreed that all expenses incurred by ECS in enforcing the Agreement or in. obtaining liens, obtaining judgments or collecting
any delinquent amounts due, including reasonable attorney's 'fees shall be recoverable from the Client. The fees quoted in this contract shall remain valid for a period of twelve (12)
months from the date of contract. Thereafter, they shall be adjusted in accordance with the Average Consumer Price Index ( CPI) for the last twelve (12) months. SECTION 4: RIGHT OF ENTRY
a. Client hereby grants ECS and its subcontractors or agents the right to enter from time to time property owned by Client and/or other{s) in order for ECS to fulfill the scope of services
included hereunder. Client understands that use of exploration equipment may cause some damage, the correction of whlch is not part of this Agreement Client also understands that the
discovery of certain hazardous conditions and/or taking preventive measures relative to these conditions may result in a reduction of the Property's value. Accordingly, Client waives
any claim against ECS and its subcontractors or agents, and agrees to defend, indemnify and ·hold ECS hannless from any claim or liability for injury or loss allegedly arising from procedures
associated with subsurface exploration activities or discovery of hazardous materials or suspected hazardous materials. In addition, Client agrees to compensate ECS for any time spent
or expenses incurred by ECS in defense of any such claim with compensation to be based upon ECS's prevailing fee schedule and expense reimbursement policy. ECS Proposal No. 19-1450-GP
Page 2 of5 11/92 
l 1 1 ] ] ' l ) ] ] ] ~ ! l l ~ b. ECS shall not be liable for damage or injury from damage to subterranean structures (pipes, tanks, cables, or other utilities, etc.) which are not
called to ECS's attention in writing and correctly shown on the diagram(s) furnished by Client to ECS. SECTION 5: SAMPLES a. b. Soil, rock\ water and/or other samples obtained from the
Project site are the property of Client. ECS shall preserve such samples for no longer than sixty (60) calendar days after the issuance of any document that includes The data obtained
from them, unless other arrangements are mutually agreed upon in writing. Should any of these samples be contaminated by hazardous substances or suspected hazardous substances, it is
Client's responsibility to select and arrange for lawful disposal procedures, that is, procedures which encompass removing the contaminated samples from ECS's custody and transporting
them to a disposal site. Client is advised that, in all cases, prudence and good judgment should be applied in selecting and arranging for lawful disposal procedures. Due to th~ risks
to which ECS is exposed, Client agrees to waive any claim against ECS, and to defend, indemnify Jmd hold ECS harmless from any claim or liability for injury or loss arising from containing,
labeling, transportin\i," testing, storing, or other handling of contaminated samples. Client also agrees to compensate ECS fo~ any time spent and expenses incurred by ECS in defense
of any such claim, with such compensation to be based upon ECS's prevailing fee schedule and expense reimbursement policy. SECTION 6: REPORTS AND OWNERSHIP OF DOCUMENTS a. ECS shall
furnish three (3) copies of each report to Client. Additional copies shall be furnished at the rates specified in the fee schedule. With the exception of ECS Reports to Client, all documents,
including original boring logs, field data, field notes, laboratory test data, calculations and estimates are and remain the property of ECS. Client agrees that all reports and other
work furnished to the Client not paid for in full will be returned to ECS upon demand and will not be used for design, construction, permits or licensing. SECTIO!II7-:· STANDARD OF CARE
a. ~ervices performed by ECS under this Agreement will be conducted in a manner consistent with that level of care and skill ordinarily exercised by members of the Engineering profession
currently practicing in the same locality under similar conditions. No other representation, express or implied, and no warranty or guarantee is included or intended in this Agreement,
or in any report, opinion, document or otherwise. b. Any exploration, testing, surveys and analysis associated with the work will be performed by ECS for the Client's sole use to fulfill
the purpose of this Agreement and ECS is not responsible for interpretation by others of the information developed. The Client recognizes that subsurface conditions beneath the Project
site maY vary from those encountered in borings, surveys or explorations and the information and recommendations developed by ECS are based solely on the information available from such
borings, surveys and explorations. SECTION 8: LIMITATION OF PROFESSIONAL LIABILITY a. Client agrees to limit ECS's liability to Client and all construction contractors arising from ECS's
professional acts, errors or omissions in performing this Agreement, such that the total aggregate liability of ECS to all those named shall not exceed $50,000 or total fee for the services
rendered on this project, whichever is greater. Client further agrees to require of the Client's General Contractor and its subcontractors an identical limitation ofECS's liability for
damages that may be suffered by the contractor or the subcontractors arising from professional acts, errors or omissions of ECS. ECS Proposal No. 19-1450-GP Page 3 of5 11192 
] ] l ! l 1 l l b. Documents, including but not limited to, technical reports, original· boring logs, field data, field notes, laboratory test data, calculatioru, and estimates furnished
to the Client or its agents pursuant to this Agreement are not intended or represented to be suitable for reuse by the Client or others on exteruions of the Project or on any other project.
Any reuse without ECS's written consent will be at Client's sole risk and without liability to ECS or to ECS's contractor(s) and Client shall indemuify and hold harmless ECS and ECS's
contractor(s) from all claims, damages, losses and experues including attorney's fees arising out of or resulting therefrom. c. Under n~ ci;rcurnstances shall ECS be liable for extra
work or other consequences due to changed conditioiJB or for costs related to failure of·the construction contractor or rnateriahnen or service providers to install work in .accordrul.ce
with the plaru and specificatioru. SECTION 9: LIABILITY INSURANCE a. ECS represents that it it and its agents, and coruultants employed by it, is and are protected by Workers Compensation
insurance and that ECS has coverage under liability insurance policies which ECS deems reasonable and adequate. ECS shall furnish certificates of insurance upon request. ECS shall not
be responsible for bodily;injury and property damage or losses arising directly or indirectly, in whole or in part, from acts by the Client, it,! -i:mployees, agents, staff, coruultants
or subcontractors employed by it or by any other person or combination of persoru. The Client agrees to limit the liability of ECS to the limits of ECS's insurance. The Client is. responsible
for requesting specific inclusions or limits of coverage that are not present in ECS insurance, the cost of such inclusions or coverage increases, if available, to be at the expense
of the Client. SECTION 10: ARBITRATION OF DISPUTES a. All claims, disputes or controversies arising out of, or in relation to the interpretation, application or enforcement of this Agreement
shall be decided through arbitration, as adopted and described by the then most current rules of the American Arbitration Association. The parties further agree that Client will require,
as a condition for participation in the project and their Agreement to perform labor or services, that all Contractors, Subcontractors, Subsubcontractors and Materiahnen, whose portion
of the work amounts to five thousand dollars ($5,000) or more, and their insurers and sureties, shall agree to this procedure. SECTION 11: TERMINATION a. Client or ECS may terminate
this Agreement for breach of this Agreement, or for any other reasoru which may arise. In the event of termination, the party effecting termination shall so notify the other party, and
termination will become effective fourteen (14) calendar days after receipt of the termination notice. Irrespective of which party shall effect termination or the cause therefore, ECS
shall promptly render to Client a fioal invoice and Client shall immediately remunerate ECS ECS for services rendered and costs incurred, in accordance with ECS's prevailing fee schedule
and experue reimbursement policy. Services shall inclnde those· rendered up to the time of termination, as well as those associated with termination itself, such as demobilizing, modifying
schedules and reassiguing personnel. Upon such termination, Client and ECS shall deliver to each other all reports and documents pertaining to services performed up to termination. SECTION
12: .SEVERABILITY a. Any provision of this Agreement later held to violate a law or regulation shall be deemed void, and all remaining provisioru shall continue in force. ECS Proposal
No. 19-1450-GP Page 4 of5 11/92 
SECTION 13: TITLES a. The titles used in this Agreement are for general reference only and are not part of the Agreement. Parties to this Agreement are advised to read each provision
and rely on the guidance of legal counsel as necessary to help assure a complete understanding of all provisions and the obligations imposed through acceptance. SECTION 14: StmVIV AL
a. All obligations arising prior to the termination of this Agreement and all provisions of this Agreement allocating ·responsibility or liability between the Client and ECS shall suivive
the completion of services and the terminatipn of this Agreement. .SECTION 15: ASSIGNS a. Neither the Client nor ECS may delegate, assign, sublet or transfer its duties, responsibilities
or interests in this Agreemen): \Vithout the written consent of the other party. < ' SECTION 16: CHOICE OF LAW a. This Agreement shall be interpreted according to the Jaws of the State
in which the Project is located (but not including its choice oflaw rules. END OF GENERAL CONDITIONS ECS Proposal No. 19-1450-GP Page 5 of5 11192 
I =;;:::== ENGINEERING CONSULTING SERVICES, LID. Geotechnical • Construction Materials • Environmental 4950 Keller Springs Road, Suite 480, Addison, Texas 75001 972.392.3222 • FAX 972.392.0102
GEOTECHNICAL ENGINEERING SERVICES 2003 SCHEDULE OF FEES FIELD EXPLORATION AND TESTING Staff to Layout Test·Borings or Test Pits Staffto Direct Field Operation Mobilization o~ Crew &
Truck Mounted Drill Rig ¥obiliz~tion of Crew & ATV -Mounted Drill Rig Drilling ·and Sainpling (0' -25') Drilling and Sampling (25' -50') Hard Drilling Surcharge Rock Coring Coring Setup
Minirmun Drilling Charge Monitoring Well Installation (1.25" pipe) Monitoring Well Installation (2.5" pipe) Monitoring Well Protective Cover SITE CLEARING OR TEST PITS Mobilization of
Operator and Backhoe · Mobilization of Operator and Tracked Loader Operator to Perform Clearing Site Clearing with Chainsaw Operator to Excavate Test Pits Project Engineer to Log Test
Pits Hand Auger Drilling SPECIALTY TESTING Mobilization ofPressuremeter Equipment Setup Pressuremeter Equipment Perform Pressuremeter Testing Rig Standby During Pressuremeter Testing.
i UNIT RATE $55.00/hour $75.00/hour $2.30/mile (min. of$175) Quoted Upon Request $9.25/ft $10.50/ft $6.00/ft $20.00/ft $125.00/boring $550.00/ls $6.00 to $7 .00/ft $7.00 to $8.00/ft
$125.00 to $135.00/well Cost+ 15% Cost+ 15% Cost+ 15% $75.00/hour per person Cost+ 15% $95.00/hour · $75.00/hour $1500.00 $25 0. 00/test $250.00/test $150.00/crew hour 
11 
~~~® Public Works I Engineering 16801 Westgrove • P.O. Box 9010 Addison, Texas 75001-9010 Telephone: 1972) 450-2871 • Fax: 1972) 450-2837 GENTLEMAN: -DATE JOB NO. ATTENTION RE: 6-eofecJ
)ark WE ARE SENDING YOU ~ched 0 Under separate cover via ______ the following items: 0 Shop Drawings 0 Prints 0 Plans 0 Samples 0 Specifications 0 Copy of letter 0 Change order 0 ____________________
____ _ COPIES DATE NO. I I t:cs Jh!lv'os;J' AI!J I THESE ARE TRANSMITTED as checked below: o For approval J( For your use 0 As requested 0 Approved as submitted 0 Approved as noted GRetumed
for corrections DESCRIPTION 19'-l'/-50-C---P 0 Resubmit ____ copies for approval 0 Submit copies for distribution 0 Return corrected prints 0 For review and comment 0---------------------------0
FOR BIDS DUE __________ tg, __ 0 PRINTS RETURNED AFTER LOAN TO US REMARKS ~-~ & ~ f'ld-Au k ~ .~ UtU /Ju.__. &;-ba-4-k_ COPY TO _________________ _ If enclosures are not as noted, please
noti 
11/03/2003 MON 10:36 FAX 214 522 6796 Structural Services Inc. GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382..0457 Phone 214-528-3796 e-mail:
gunningcei@aol.com October 31, 2003 Mr. James C. Pierce, Jr., P .E. Assistant Public Works Director Town of Addison 1680 I Westgrove Drive Addison, Texas 75001-9010 Re: Tee-Hanger Door
Support Repairs Addison Airport Addison, Texas Dear Mr. Pierce: Delivery Address: 3303 Lee Parkway, Ste. 325 Dallas, Texas 75219-5109 FAX 214-522-6796 ~004/007 We are pleased to submit
this proposal to provide consulting structural engineering services for the referenced project. The project consists of investigation and design of remedial structural construction of
the lateral supports at the top of the door to the hanger structure. Our services will consist of the following: Preparation of structural calculations for design of the lateral supports,
Preparation of contract drawings and project specifications for the structural portion of the worlc, Review of structural shop drawings or manufacturer's data sheets, if applicable,
to determine general conformance with the design concept of the project and for general compliance with information indicated in the structural contract docwnents, and One or more visits
to the project site to observe the progress of the structural construction, with written reports of such visits. These services would be performed in conjunction with a materials testing
and inspection agency (retained by you), if appropriate. {/-l'f~Dj by JSJ /a--Gunnin Consulting Engineers, Inc. dateW) 
11/03/2003 MON 10:36 FAX 214 522 6796 Structural Services Inc. Mr. Pierce October 31, 2003 Page two lill 005/007 It is agreed that we will not review the design or condition of the doors
themselves, the supports at the bottom of the doors, nor the hanger structure. We propose to provide these services on an hourly basis in accordance with the following fee schedule:
Bill L. Gunnin Contract Drafting Contract Clerical $125.00/hr. 85.00/hr. 50.00/hr. In addition, non-labor expenses, for example, travel expense, long-distance telephone, delivery charges,
photographs, and printing and reproduction costs, will be considered reimbursable expenses and will be billed at our invoice cost. We estimate that our billings will be as follows: Services
to date -$1,177.34 (see our invoice oftoday's date, attached) Services through issue of contract documents, including one additional site visit of less than four hours, portal-to-portal-additional
$1,000.00 Services after issue of contract documents-on an hourly basis in accordance with above. If thls proposal is acceptable, please indicate acceptance by an authorized signature
below and return a copy to this office. We look furward to working with you on thls project Bill L. Gwmin, P .E. President AGREED AND ACCEPTED: Date: J /-( t{----c:> 3 
11/03/2003 MON 10:35 FAX 214 522 6796 Structural Services Inc. ~001/007 GUNNIN CONSULTING ENGINEERS, INC Mailing Address: Delivery Address: P. 0. Box 820457 Dallas, Texas 75382-0457
Phone: 214-528-3796 3303 Lee Parkway, Suite 325 Dallas, Texas 75219 e-mail: gunningcei@aol.com FACSIMILE COVER SHEET DATE: November 3, 2003 TO: Mr. James C. Pierce, Jr., P.E. Town of
Addison FROM: Bill L. Gunnin JOB NAME: Tee-Hanger Doors Addison Airport JOB NUMBER: 451 FAX: 214-522-6796 FAX NO: 972-450-2837 TOTAL NUMBER OF PAGES, INCLUDING THIS SHEET: 7 HARD COPY
OF TRANSMISSION TO FOLLOW? YES: NO: X PLEASE CALL 214-528-3796 IF COMPLETE TRANSMISSION IS NOT RECEIVED. Our letter to you dated October 3 I, 2003 regarding our site visit on the same
date. Our letter of proposal to you dated October 31, 2003 for our structural engineering services. Please return an executed copy to our office.Our invoice number 45100-01 dated November 1, 2003 for our services to date. 
~~~~~~® Public Works I Engineering 16801 Westgrove • P.O. Box 9010 Addison, Texas 75001-9010 Telephone: (972) 450-2871 • Fax: (972) 450-2837 GENTLEMAN: DATE ATTENTION REc 11-tlf-o:S
I JOBNO. .141 e:/;St;?t //-; y ~-:I-'T' ~ .. tif' tl v -; v WE ARE SENDING YOU ~hed D Prints D Under separate cover via ______ the following items: D Shop Drawings D Plans D Samples
D Specifications D Copy of letter D Change order D _________________________ __ COPIES DATE NO. DESCRIPTION 7 /J.-a n:>D ¥'11.£>-"" -J-.-1:-n _ 7 .viA ..--•• d .i-t ivJ ~ r i/1 r ,.a,-/JJ
' 1-t.. .)d...-i.< i'1 Yl I ;._., 0M C: , LL , ;:::,]., , rJ -1?-tJrc: ~..eo 'JY'd, nc-~ v-""',.,,.+ '7' "'j.j;;11 oa.-1'/)bo';l <;A M"CJr--:"M ~Ire. ( I ._/( THESE ARE TRANSMITTED as
checked below: D For approval D Approved as submitted D Resubmit _____ copies for approval 17'{or your use D Approved as noted D As requested D Returned for corrections D Submit copies
for distribution D Return corrected prints D For review and comment D ----------------------------D FOR BIDS DUE __________________ 19, __ _ D PRINTS RETURNED AFTER LOAN TO US REMARKS
_________________________________________________________________ _ COPY TO _________________________________ _ SIGNED: ~ If enclosures are not as noted, please nomLla= 
11/03/20Q3 MON .10:35 FAX 214 522 6796 Structural Services Inc. GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phone 214-528-3796 e-mail:
gunningcei@aol.corn October 31, 2003 Mr. James C. Pierce, Jr., P.E. Assistant Public Works Director Town of Addison 16801 West grove Drive Addison, Texas 75001-9010 Re: Tee-Hanger Door
Support Repairs Addison Airport Addison, Texas Dear Mr. Pierce: Delivery Address: 3303 Lee Parkway, Ste. 325 Dallas, Texas 75219-5109 FAX 214-522-6796 (g] 002/007 At your request, we
visited the site of the referenced project today. I was accompanied by you (part-time) and by your Mr. David Foster. The purpose of the visit was as follows: to observe the location
where you had exposed part of the foundation for one of the exterior columns at one of the tee-hangers where hanger door supports need repairs, to discuss with you the scope of the geotechnical
investigation, to measure and photograph the existing structure at the same tee-hanger, and to to observe the existing rolling door supports at the other two types of tee-hangers. We
had requested that a partial excavation be made at one of the column foundations at a teehanger whose doors needed repair. You had made the excavation, and had exposed part of two of
the sides of a square footing foundation. The excavation indicated that the grade beam below the rolling door was the same depth as the square column footing. Not much of the bottom
of the footing was exposed, for the obvious reason that it would not be appropriate to remove much of the soil if the soil was the bearing strata for the foundation. We inquired about
the possibility of there being a drilled pier under the column footing. Even though the bottom of the footing was not completely exposed for the reasons noted above, you indicated that
probably a drilled pier did not exist below the square footing. There followed a discussion of the role of the geotechnical engineer in this investigation. Based on the assumption that
there were not drilled piers at the columns, it was agreed that a geotechnical investigation be commissioned. The purpose of the investigation would be for the geotechnical engineer
to sample the geotechnical strata near the existing (assumed) footings to determine the magnitude of the probable vertical movements of the footing and grade beam foundations in order
to detail the connections at the tops of the hanger doors to accommodate the movements. 
11/03/2003 MON 10:35 FAX 214 522 6796 Structural Services Inc . . Mr. Pierce October 31, 2003 Page two ~ 003/007 You requested that we contact Mr. Chris Eddy, P. E., of Engineering Consulting
Services, LTD to discuss the scope of a proposed geotechnical investigation. It was agreed that five borings be made, one near each of the five older hangers. We will contact Mr. Eddy
to do so, and will request that Mr. Eddy contact you for authorization to proceed with their investigation, to be paid by you. As note in our e-mail to you dated October 15, 2003, we
recommend that we proceed with investigation and design for new hanger door lateral supports using lateral rolling devices at the hangers in question. Following my site visit today,
I went to Elliot's Hardware to look for such devices. They did not have any, but suggested that I go to Allied Fencing on west Commerce Street. I did so, but the limited number of proprietary
devices they had were not appropriate for this application. I recommend that we proceed with detailing such devices that can be fabricated; it appears that these are used (apparently
successfully) at your hangers on the West Side. We will proceed on this basis, but will continue to look for available proprietary rolling door supports. Enclosed is one print each of
the photographs we took today, along with one print each of the photographs we took on our visit to the site both today and on October 15, 2003. Sincerely, GUNNIN CONSULTING ENGINEERS,
INC. ~%~ Bill L. Gururin, P.E. Encl: One print each of the photos we took on October 15,2003 and of the photos we took today. 
~-ADDisoN Public Works I Engineering 16801 Westgrove • P.O. Sox 9010 Addison, Texas 75001-9010 DATE ATTENTION RE' 11-1 'f-o;:3 I JOB NO. Add .t. .~ .,.. ,, 11-ti~rr--ffrL)?q 11Y5 Telephone:
(972) 450-2871 • Fax: (972) 450-2837 I GENTLEMAN: WE ARE SENDING YOU 0 Shop Drawings 0 Copy of letter COPIES DATE NO. I ~Attached 0 Prints 0 Change order 0 Under separate cover via ______
the following items: 0 Plans 0 Samples 0 Specifications o ________________________ _ /1 DESCRIPTION .(,4 ~.# ;:... A A £l ,.k I 'ALt. .... A~ (/..c_ A_, .. ,., -/;:1-.?'A.._..Il..t ~
~ v ( THESE ARE TRANSMITTED as checked below: 0 For approval ~For your use 0 As requested 0 Approved as submitted 0 Approved as noted 0 Returned for corrections 0 Resubmit ____ copies
for approval 0 Submit copies for distribution 0 Return corrected prints 0 For review and comment 0---------------------------0 FOR BIDS DUE------------------19 __ 0 PRINTS RETURNED AFTER
LOAN TO US REMARKS ______________________________________________________________ ___ COPY COPY TO-------------------If enclosures are not as noted, please no · 
GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phone 214-528-3796 e-mail: gunningcei@aol.com BILL TO Town of Addison Mr. James c. Pierce,
Jr., P.E. 16801 Westgrove Drive Addison, TX 75001-9010 DESCRIPTION PROFESSIONAL SERVICES THROUGH 10/31/00 Bill L. Gunnin SUBTOTAL PROFESSIONAL SERVICES REIMBURSABLE EXPENSES THROUGH
10/31/00 Travel -Automobile -two trips @30 mi. each Photographs -$20.95 + $11.89 SUBTOTAL. REIMElURSABI.E EXPENSES Delivery Address: 3303 Lee Parkway, Ste. 325 Dallas, Texas 75219-5109
FAX 214-522-6796 DATE INVOICE# 11/1/2003 45100-01 PROJECT 451 Addison Airport Tee Hangers QTY RATE AMOUNT 9 125.00 1,125.00 1,125.00 60 0.325 19.50 1 32.84 32.84 52.34 Total $1,177.34

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GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: Delivery Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phone 214-528-3796 e-mail: gunningcei@aol.com October 31, 2003 Mr. James
C. Pierce, Jr., P.E. Assistant Public Works Director Town of Addison 16801 Westgrove Drive Addison, Texas 75001-9010 Re: Tee-Hanger Door Support Repairs Addison Airport Addison, Texas
Dear Mr. Pierce: 3303 Lee Parkway, Ste. 325 Dallas, Texas 75219-5109 FAX 214-522-6796 We are pleased to submit this proposal to provide consulting structural engineering services for
the referenced project. The project consists of investigation and design of remedial structural construction of the lateral supports at the top of the door to the hanger structure. Our
services will consist of the following: Preparation of structural calculations for design of the lateral supports, Preparation of contract drawings and project specifications for the
structural portion of the work, Review of structural shop drawings or manufacturer's data sheets, if applicable, to determine general conformance with the design concept of the project
and for general compliance with information indicated in the structural contract documents, and One or more visits to the project site to observe the progress of the structural construction,
with written reports of such visits. These services would be performed in conjunction with a materials testing and inspection agency (retained by you), if appropriate. Agreed to: by=---::-,.-:-:-:---
date ____ by JSJ ~ Town of Addison Gunnin Consulting Engineers, Inc. date~) 
Mr. Pierce October 31, 2003 Page two It is agreed that we will not review the design or condition of the doors themselves, the supports at the bottom of the doors, nor the hanger structure.
We propose to provide these services on an hourly basis in accordance with the following fee schedule: Bill L. Gunnin Contract Drafting Contract Clerical $125.00/hr. 85.00/hr. 50.00/hr.
In addition, non-labor expenses, for example, travel expense, long-distance telephone, delivery charges, photographs, and printing and reproduction costs, will be considered reimbursable
expenses and will be billed at our invoice cost. We estimate that our billings will be as follows: Services to date -$1,177.34 (see our invoice oftoday's date, attached) Services through
issue of contract documents, including one additional site visit of less than four hours, portal-to-porta!-additional $1,000.00 Services after issue of contract documents-on an hourly
basis in accordance with above. If this proposal is acceptable, please indicate acceptance by an authorized signature below and return a copy to this office. We look forward to working
with you on this project. Bill L. Gunnin, P .E. President AGREED AND ACCEPTED: By:~--~~---------Town of Addison Date: _________ _ 
11/14/2003 FRI 8:31 FAX 214 522 6796 Structural Services Inc. 1410011005 GUNNIN CONSULTING ENGINEERS, INC Mailing Address: Delivezy Address: P. 0. Box 820457 Dallas, Texas 75382-0457
Phone: 214-528-3796 3303 Lee Parkway, Suite 325 Dallas, Texas 75219 e-mail: gunningcei@aol.com FACSIMILE COVER SHEET DATE: November 14,2003 TO: Mr. James C. Pierce, Jr., PE, Town of
Addison~ FAX NO: Mr. Christopher W. Eddy, PE, ECS, Ltd. FROM: Bill L. Gunnin JOB NAME: Tee-Hanger Doors Addison Airport JOB NUMBER: 451 TOTAL NUMBER OF PAGES, INCLUDING THIS SHEET: 5
HARD COPY OF TRANSMISSION TO FOLLOW? YES: FAX: 214-522-6796 972-450-2837 972-392-0102 NO: X PLEASE CALL 214-528-3796 IF COMPLETE TRANSMISSION IS NOT RECEIVED. In a phone call with Mr.
Eddy today, it was clarified that the geotechnical investigation and report would include estimates of Potential Vertical Rise of the soil at the existing footings and grade beams. 
11/14/2003 FRI 8:31 FAX 214 522 6796 Structural Services Inc. NOV 12 2003 !1:03AM HP LASERJET 3200 TOWN OF ADDISON To: 8d/Gunn1YI Company: (;.. n ~'~ i Y1 ~11-tnr FAX#: iz..tt.f-5.2.'2..-{.716
Date: //--If: -o3 #of pages (including cover):_£/-.~--_ PUBLIC WORKS From: Jim Pierce, P .E. Asst. Public Wks. Dir. Phone: 972/450-2879 FAX: 972/450-2837 jpierce@ci.addison.tx.us 16801
Westgrove P.O.Box 9010 Addison, TX 75001-9010 0 CaD me ~ 0021005 p. 1 11/12/2003 WED 10:00 "[JOB NO. 7563) ~001 
11/14/2003 FRI 8:32 FAX 214 522 6796 Structural Services Inc. NOV 12 2003 11:03AH HP LASERJET 3200 -. ' I -~ ., • ; ~ I .-.r t-..'. .. ENGINEaR!NG CONSULTING SERVICES, LTD. Geotechnical
• Construction Materials • Environmental . Mr. Jim Pit:J:CC .. TownofAddiscm ·: P.O. 'Box 9010 · Addison, Texas :75001 Reference: · ) . Proposal for Subsurface Exploration Services Hangar
Modifications Addison AiJport Addison, Texas ECS Proposal No. 19-1450-GP ·near Mr. Pierce: November 7, 2003· • As requested, Engineering Consulting Services, Ltd. (ECS, Ltd.) is pleased
to present' the following propoSal for providing subs~w;e exploration services and geotechnical coigineering. analysis of the proposed site for the above referenced project. We understand
the project · consists of modifying the hangar doors on five han~ar· structures at the refenmced site. · Scope or Services 1f authoriZed;· our integrated services will include drilling
of soil borings by drill cre\Vs under our direct ·supervision, labollltory testing of representative soil samples.for pertinent engineering properties; and preparation of an eJ!gineering
report. As requested, five borings will be drilled in the buildfug area to a depth of about 20 feet below existing grade Or: 5 feet into unweathered rock, whichever is shallower. We
understand the drilling operations will be perfonned near existing structure. We will attempt. to minimize the ~~<!lOUD~ of disturbance to landscaping and flatwork (i.e. sidewalks, driveways)
whil~ accessing the boring locations and during the drilling operations. However, rutting of the lawn areas and cracking of flatwork may occur in areas the ·drill rig will travel. ECS,
Ltd. and its · representatives will not be responsible for repairing or replacing.any landscaping or flatwork that is damaged while accessing the boring locations oi during the drilling
operation. ' . Upon completion of drilling operations, the samples will be subjected to laboratory tests (that can include moistllre content, Atterberg limits, unconfined compr~ssion,
and swell tests) . followed by the preparation of a written engineering report. ~ 003/005 p.2 4950 Keller Springs Road, Suite 480, Addison, TX 75001 • (972) 392·3222 •FAX (972) 392-0102
• www.ec•limited.com Abe.&"CW!a, ~ · A.tlaDia. GA • Auuin,. TX · Balli[I).Ote. MD· ChAnlill)'. VA · Charlot~ NC · DaD.\'ille. VA • Ytedcrid:, MD· fmSericbbiUJ. VA· Greensboro, NC · GrtmYilh:.
SC' Norfolk, . Richm'o~ VA ·lloanokc, VA. · San Antonio. TX · Wmja.rmbw'J, VA • . •Tt:l!lllhl Scrv:ica .7563] ~ 002 
11/14/2003 FRI 8:32 FAX 214 522 6796 Structural Services Inc. NOV 12 2003 11:03AH HP LASERJET 3200 !gJ 004/005 p.3 I I I I I I I I r·"· ' r I I I I Town of Addison ECS ProposalNo.l9·14S().OP
November 7, 2003 The engineering report will include the following items: a. b. c. d. • l ' e. Information an site conditions including surface drainage, geologic information and. special
t;ite features. . ' . _Description of the field exploration and laborato.ry tests performed. Final!Qgs of the soil borings and records of the field-exploration in accordance with the
standard practice of geotechnical engineers. A site location plan will-be included. and the results of the laboratory tests will be plotted on the final boring logs or included on a
separate test report sheet. Geotechnical design parameters for footing foundations (if appropriate), and drilled shafts (mrite commonly used in this formation); and estimates-of predicted
foundation movement. Compaction requirements and suitable material guidelines. for grading grading the site. Fees and Sc:hedule The lump sum cost of the services outlined above will
be $2,000.00. This lump sum cost includes 3 copies.ofthe engineering report. ' ' . We are prepared to mobilize onto the site within 3 to 4 working days after authorization to proceed,
weather pennitting. We anticipate that 4rilling operations will require approxiniately 1 workitig ·day, and that laboratory testing after drilling is completed will require approximately
4 working days. Therefore, for time budget pmposes, the total scope of work could requiie as much aS 2 to 3 .weeks from initial authorization throUgh final report submission. · If other-items
are required because of Unexpected field conditions (i.e. site clearing, wet site conditions, etc.) encountered in our field exploration program, or because of a request for additional.
services, they would be invoiced in accordance with our current Fee Schedule. Before modifying or expanding the extent of our exploration program, you would be informed of our intentions
for bo.th your review and. authorization. If requested, we can review plans arid specifications for 'the referenced project to detetmine general-compliance with the geotechnical engineers
recommendations .. We can also provide additional consultation and engineering imalysis 'for you on other problems related to performance of the stnlcture and subsurface conditions.
These services can be provided at the unit rates outlfued in the attached fee schedule, and would be in addition ·to the fee outlined above. 2. 11 3 J ~003 
~.,.,:. ,. ~1.: :~.··· ... 11/14/2003 FR! 8:32 FAX 214 522 6796 Structural Services Inc. NOV 12 2003 11:03AM HP LASERJET 3200 ··•.· , ... Town of .Addison ECS Proposal No. 19-1450-GP
Noverriber 7, 2003 Closing Attached to this letter, and an integral part of oui proposal, are our "Genetal Conditions of Service". These eonditions represent the current recommendations
of the Association of Soil and Foundation Engiiteers, the Consulting Engineers' Council, and the Geotechnical Division of the· American Societo/of Civil Engineers. · ' ' . ' Our insurance
earner requires that we receive written authorization prior to initiation of work, and a signed contract prior to. the release of any work product. This letter is the agreement for our
services. Your acceptance of this proposal may be indicated by signing and returning the enclosed copy to us. ·we are pleased to have this opportunity to o:ffer our services and look
forward to working with you on the project Respectfully,-! • ' ENGINEERING CONSULTING SERV1CES, LTD. Enclosures: Gen.eral·Conditions of S~ce 3 44.. . Mark L. McKay, P.E. Principal Enginem:
@005/005 p.4 ·-r ·-., I j l ! i i i I I I I ! 63] ~004 
GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phone 214-528-3796 e-mail: gunningcei@aol.com October 31, 2003 Mr. James C. Pierce, Jr.,
P .E. Assistant Public Works Director Town of Addison 16801 Westgrove Drive Addison, Texas 75001-9010 Re: Tee-Hanger Door Support Repairs Addison Airport Addison, Texas Dear Mr. Pierce:
Delivery Address: 3303 Lee Parkway, Ste. 325 Dallas, Texas 75219-5109 FAX 214-522-6796 At your request, we visited the site of the referenced project today. I was accompanied by you
(part-time) and by your Mr. David Foster. The purpose of the visit was as follows: to observe the location where you had exposed part of the foundation for one of the exterior columns
at one of the tee-hangers where hanger door supports need repairs, to discuss with you the scope of the geotechnical investigation, to measure and photograph the existing structure at
the same tee-hanger, and to observe the existing rolling door supports at the other two types of tee-hangers. We had requested that a partial excavation be made at one of the column
foundations at a teehanger whose doors needed repair. You had made the excavation, and had exposed part of two of the sides of a square footing foundation. The excavation indicated that
the grade beam below the rolling door was the same depth as the square column footing. Not much of the bottom of the footing was exposed, for the obvious reason that it would not be
appropriate to remove much of the soil if the soil was the bearing strata for the foundation. We inquired about the possibility of there being a drilled pier under the column footing.
Even though the bottom of the footing was not completely exposed for the reasons noted above, you indicated that probably a drilled pier did not exist below the square footing. There
followed a discussion of the role of the geotechnical engineer in this investigation. Based on the assumption that there were not drilled piers at the columns, it was agreed that a geotechnical
investigation be be commissioned. The purpose of the investigation would be for the geotechnical engineer to sample the geotechnical strata near the existing (assumed) footings to determine
the magnitude of the probable vertical movements of the footing and grade beam foundations in order to detail the connections at the tops of the hanger doors to accommodate the movements.

Mr. Pierce October 31, 2003 Page two You requested that we contact Mr. Chris Eddy, P. E., of Engineering Consulting Services, LTD to discuss the scope of a proposed geotechnical investigation.
It was agreed that five borings be made, one near each of the five older hangers. We will contact Mr. Eddy to do so, and will request that Mr. Eddy contact you for authorization to proceed
with their investigation, to be paid by you. As note in our e-mail to you dated October 15, 2003, we recommend that we proceed with investigation and design for new hanger door lateral
supports using lateral rolling devices at the hangers in question. Following my site visit today, I went to Elliot's Hardware to look for such devices. They did not have any, but suggested
that I go to Allied Fencing on west Commerce Street. I did so, but the limited number of proprietary devices they had were not appropriate for this application. I recommend that we proceed
with detailing such devices that can be fabricated; it appears that these are are used (apparently successfully) at your hangers on the West Side. We will proceed on this basis, but
will continue to look for available proprietary rolling door supports. Enclosed is one print each of the photographs we took today, along with one print each of the photographs we took
on our visit to the site both today and on October 15, 2003. Sincerely, GUNNIN CONSULTING ENGINEERS, INC. '~J~ Bill L. Gunnin, P.E. Encl: One print each of the photos we took on October
15, 2003 and of the photos we took today. 
HP Laser Jet 3200se HP LASERJET 3200 NOV-12-2003 !1:04AM Fax Call Report · Job Date Time Type Identification Duration 142 11/12/2003 !!:03:17AM Send 92145226796 TOWN OF ADDISON To: 8,1(
GuM•n Compaoy: ([i. M i Yl t:/rw.,ff,nr FAX#: 'Wl-5:4'2.-b79{, Date: /1-/'}.. -o3 # of pages (including cover):.....!:/:..._ 1:30 PUBLIC WORKS From: Jim Pierce, P.E. Asst. Public Wks.
Dir. Pbone: 972/450-2879 FAX: 9721450-2837 jpiuce@daddbou.tx.us 16801 Westgrove P.O.Box 9010 Addison, TX 75001-9010 Re: L fiu'Jt;f? tf-u;fecA Pages 4 invent Result OK 
ENGINEERING CONSULTING SERVICES, LTD. Geotechnical • Construction Materials • Environmental. Mr. Jim Pierce Town of Addison P.O. Box 9010 · Addison, Texas ,75001 Reference: Proposal
for Subsurface Exploration Services Hangar Modifications Addison Airport Addison, Texas ECS Proposal No. 19-1450-GP Dear Mr. Pierce: November 7, 2003 • As requested, Engineering Consulting
Services, Ltd. (ECS, Ltd.) is pleased to present the following proposal for providing subsurface exploration services and geotechnical engineering analysis of the proposed site for the
above referenced project. We understand the project consists of modifYing the hangar doors on five hangar structures at the referenced site. Scope of Services If authoriZed; our integrated
services will include drilling of soil borings by drill crews under our direct supervision, laboratory testing of representative soil samples for pertinent engineering properties~ and
preparation of an engineering report. As requested, five borings will be drilled in the building area to a depth of about 20 feet below existing grade or 5 feet into unweathered rock,
whichever is shallower. We understand the drilling operations will be performed near existing structure. We will attempt. to miuimize the amount of disturbance to landscaping and flatwork
(i.e. sidewalks, driveways) while accessing the boring locations and during the drilling operations. However, rutting of the lawn areas and cracking of flatwork may occur in areas the
drill rig will travel. ECS, Ltd. and its representa"tives will not be responsible for repairing or replacing any landscaping or flatwork that is damaged while accessing the boring locations
or during the drilling operation. Upon completion of drilling operations, the samples will be subjected to laboratory tests (that can include moisture content, Atterberg limits, unconfmed
compression, and swell tests) followed by the preparation of a written engineering report. 4950 Keller Springs Road, Suite 480, Addison, TX 75001 • (972) 392-3222 • FAX (972) 392-0102
• www.ecslimited.com Aberdeen, MD• ·Atlanta, GA ·Austin, TX ·Baltimore, MD· Chamil\y. VA· Charlotte~ NC · Chicago.IL ·Cornelia. GA'" ·Dallas, TX Danville, VA· Frederick, MD· Fredericksburg,
VA· Greensboro. NC · Greenville. SC · Norfolk. VA· Orlando. FL · Research Triangle Park, NC Richniond. VA· Roanoke, VA· San Antonio, TX · Will_iamsburg. VA· Wilmington,-_NC ·Winchester.
VA •Testing Services Only I ! 1 1 I j j 1 f i 
] l ) ] 1 ) I I I l 1 J ) I I ) I I L' ,. .. :-<. 'Town of Addison ECS Proposal No. 19-1450-GP November 7, 2003 The engineering report will include the following items: a. b. c. d. e.
Information on site conditions including surface drainage, geologic information and special :site features. Description of the field exploration and laboratory tests performed. Final
lqgs of the soil borings and records of the field exploration in accordance with the standard practice of geotechnical engineers. A site location plan will·be included, and the results
of the laboratory tests will be plotted on the final boring logs or included on a separate test report sheet. Geotechnical design parameters for footing foundations (if appropriate),
and drilled shafts (more commonly used in this formation), and estimates of predicted foundation movement. Compaction requirements and suitable material guidelines for grading the site.
Fees and Schedule The lump sum cost of the services outlined above will be $2,000.00. This lump sum cost includes 3 copies of the engineering report. We are prepared to mobilize onto
the site within 3 to 4 working days after authorization to proceed, weather permitting. We anticipate that Q.rilling operations will require approximately 1 working day, and that laboratory
testing after drilling is completed will require approximately 4 working days. Therefore, for time budget purposes, the total scope of work could require as much a8 2 to 3 weeks from
initial authorization through final report submission. · If other. items are required because of unexpected field conditions (i.e. site clearing, wet site conditions, etc.) encountered
in our field exploration program, or because of a request for additional services, they would be invoiced in accordance with our current Fee Schedule. Before modifying or expanding the
extent of our exploration program, you would be informed of our intentions for both your review and authorization. If requested, we can review plans and specifications for the referenced
projectto determine general-compliance with the geotechnical engineers recommendations. We can also provide additional consultation and engineering analysis for you on other problems related
to performance of the structure and subsurface conditions. These services can be provided at the uuit rates outlined in the attached fee schedule, and would be in addition to the fee
outlined above. 2 
I I I t li!""~· Town of Addison ECS Proposal No. 19-1450-GP November 7, 2003 Closing Attached to this letter, and an integral part of our proposal, are our "General Conditions of Service".
These conditions represent the current recommendations of the Association of Soil and Foundation Engir\.eers, the Consulting Engineers' Council, and the Geotechnical Division of the·
American Society of Civil Engineers. . . Our insurance carrier requires that we receive written authorization prior to initiation of work, and a signed contract prior to the release
of any work product. This letter is the agreement for our services. Your acceptance of this proposal may be indicated by signing and returning the enclosed copy to us. We are pleased
to have this opportunity to offer our services and look forward to working with you on the project. Respectfully; i .• ENGINEERING CONSULTING SERVICES, LTD. sto er W. Edd;,f.riO Geotechnical
Departme~~ger Enclosures: General Conditions of Service 3 Mark L. McKay, P.E. Principal Engineer f I i 
11/06/2003 THU 15:16 FAX 214 522 6796 Structural Services Inc. ~ 001/006 GUNNIN CONSULTING ENGINEERS, INC Mailing Address: Delivery Address: P. 0. Box 820457 Dallas, Texas 75382-0457
Phone: 214-528-3796 3303 Lee Parkway, Suite 325 Dallas, Texas 75219 e-mail: gunningcei@aol.com FACSIMILE COVER SHEET DATE: November 6, 2003 TO: Mr. Chris Eddy, Engineering Consulting
Services Mr. Jim Pierce, Town of Addison FROM: Bill Gunnin JOB NAME: Addison Airport Tee Hangers Addison, Texas JOB NUMBER: 451 FAX: 214-522-6796 FAX NO: 972-392-0102 972-450-2837 .....
TOTAL NUMBER OF PAGES, INCLUDING THIS SHEET: 6 HARD COPY OF TRANSMISSION TO FOLLOW? YES: NO: X PLEASE CALL 214-528-3796 IF COMPLETE TRANSMISSION IS NOT RECEIVED. Following our phone
conversation this morning, we are transmitting herewith the following correspondence between our firrn and Jim Pierce: e-mail from Jim Pierce to me dated 10/15/03, 12:29:12 PM e-mail
from me to Jim Pierce dated 10/15/03, 1:55:58 PM e-mail from me to Jim Pierce dated 10/15/03, 2:25:10 PM Letter from me to Jim Pierce dated October 31, 2003 Please review and give me
a call. 
11/06/2003 TBU 15:16 FAX 214 522 6796 Structural Services Inc. ~002/006 Pagel of 1 lsubj=-·-~cils~~Aiqiort T Hange·~;·--··---··--------·-----·-· -----~---··------------------·--------·1
!Date: 10/15/0312:29:12 PM Central Daylight Time li From: jp~ce@cj addlson.tx.us J' To: gunningcei@i;!oi.!:;QJ)l CC: fu;J!"p_y~wgint.corn Sent from the Internet (Details! Bill: Geotechnical
contact: Chris Eddy, P .E., Engineering Consulting Services, LTD., 972-392-3222 · Tail height of largest aircraft requires ten feet clear. Jim Pierce, P.E. Assistant Public Works Director
P.O. Box 9010 Addison, TX 75001-9010 972-450-2879 This e-mail and any files or attachments transmitted with it contains Information that is confidential and privileged. This document
may contain Protected Health Information (PHI) or other Information that is intended only for the use of the individual(s) and entity(ies) to whom it is addressed. If you are the intended
recipient, further disclosures are prohibited without proper authorization. If you are not the intended recipient, any disclosure, copying, printing, or use of this Information is strictly
prohibited and possibly a violation of federal or state law and regulations. If you have received this information in error, please delete it and notify Hamid Khaleghipour at 972-450-2868
immediately. Thank you. ·· · : -.'·Wednesday, Oct<iher 15,.2003-America Online: Gl:.JNNINGCEI 
11/06/2003 TBU 15:16 FAX 214 522 6796 Structural Services Inc. li!i 003/006 Page 1 of J· ·-,, ~_~ _:_ __ c_ _________________ ~··--·····-~---·--·--...-'-~----·.:.---·······--·--··------·
·····---···-·--] Subj: Re: Addison Airport T Hangers · Date: 10/15/03 1:55:58 PM Central Daylight Time . !From: GUNNINGCEI . To: iRierce@cl.addison.tx&s Mr. Pierce: We suggest that the
geotechnical investigation of the tee hangers should include as a minimum the following: At least one boring or excavation very near the steel pipe columns at the front of the tee hanger.
This boring or excavation should ex(end to the bottom of the foundation or to the primary bearing stratum, whichever Is deeper. This Is to determine · the type and size of the foundations
for the superstructure, and the degree to which movement of the superstructure due to geoteclinical conditions is a consideration (or to eliminate this consideration). At least one boring
or excavation near the grade beam at the front of the hanger that supports the rolling rolling door. This boring or excavation should extend to the bottom of the grade beam as a minimum.
This Is to determine the influence of the grade beam movement due to geotechnical conditions on the difficulties with the rolling doors. You may want to have me at the site during at
least the last part of the geotechnical field work. If you or the geotechnical engineer have any questions, feel free to call me. Bill Gunnin Gunnin Consulting Engineers, Inc. 214-528-3796
·.·< .;·: Wedtiesday;October 15, 2003 ·America Online: GUNNINGCEJ. · "·; 
11/06/2003 THU 15:16 FAX 214 522 6796 Structural Services Inc. '· • I ' ' j:c"-. ! <', '· .. \@004/006 Pagelofl "sub/::_c ___ AiiCiisonAirport r Hangers ___ .-----~---·-·-------·------------·--------
---·-2 ··· · --Date: 10115103 2:25:10 PM Central Daylight Time From: GUNNINGCEI To: jRierce_@!>l.addi!l_on.tx.us Mr. Pierce: As we discussed on the phone today, one of our initial thoughts
about the cause(s) of the difficulty with the rolling doors at the T -hangers has to do with the connection at the top of the doors. · After you left us, Dave Foster took me to the other
two types ofT -hangers. Both of them appeared to be of newer construction than the type you showed me where the distress was greatest. According to Dave, very few difficulties had been
observed by you at the rolling doors of the newer hangers. I pointed out to Dave that the connection at the top of the doors at the ne_wer hangers had rollers In a horizontal plane that
did bear against a vertical steel plate that projected down from the building structure above the door. The door is supported vertically and laterally at the bottom track, but only laterally
at the top. My initial thought is that possibly implementation of this type of lateral support at the top as replacements at the old hangers might go a long ways toward reducing the
problems. I suggest that your staff and/or contractor{s) investigate available door lateral rolling supports and implications on construction of remedial measures. In the meanwhile,
the geotechnical investigation can be implemented to determine column and grade beam movements and implications. If you have any questions, feel free to call me. Bill Gunnin Gunnin Consulting
Engineers, Inc. Wedhesday, October 15; 2003 America Online: GUNNINGCEI 
11/06/2003 TBU 15:16 FAX 214 522 6796 Structural Services Inc. GUNNIN CONSULTING ENGINEERS, INC. Mailing Address: P. 0. Box 820457 Dallas, Texas 75382-0457 Phone 214-528-3796. e-mail:
gunningcei@aol.com October 31, 2003 Mr.James C. Pierce, Jr., P.E. Assistant Public Works Director Town of Addison 16801 Westgrove Drive Addison, Texas 75001-9010 Re: Tee-Hanger Door
Support Repairs Addison Airport · Addison, Texas Dear Mr. Pierce: Delivery Address: 3303 Lee Parkway, Ste. 325 Dallas, Texas 75219-5109 FAX 214-522-U796 ~ 005/006 At your request, we
visited the site of the referenced project today. I was acccrnpanied by you (part-time) and by your Mr. David Foster. The purpose of the visit was as follows: to observe the location
where you had exposed part of the foundation for one of the exterior oolumns at one of the tee-hangers where hanger door supports need repairs, to discuss with you the scope of the geotechnical
investigation, to measure and photograph the existing structure at the same tee-hanger, and to observe the existing rolling door supports at the other two types of tee-hangers. We had
requested that a partial excavation be made at one of the column foundations at a tee-. hanger whose doors needed repajr. You had made the excavation, and had exposed part of two of
the sides of a square footing forindation. The excavation indicated that the glade beam below the rolling door was the same depth as the square colwnn footing. Not much of the bottom
of the footing was exposed, for the obvious reason that it would not be appropriate to remove much of the soil if the soil was the bearing strata for the foundation. We inquired about
the possibility of there being a drilled pier under the column footing. Even though the bottom of the footing was not completely exposed for the reasons noted above, you indicated that
probably a drilled pier did not exist below the square footing. There followed a discussion of the role of the geotechnical engineer in this investigation. Based on the assumption that
there were not drilled piers at the columns, it was agreed that a geotechnical investigation be commissioned. The purpose of the investigation would be for the geotechnical engineer
to sample the geotechnical strata near the existing (assumed) footings to determine the magnitude of the probable vertical movements of the footing and grade beam foundations in order
to detail the connections at the tops of the hanger doors to accommodate the movements. 
11/06/2003 THU 15:16 FAX 214 522 6796 Structural Services Inc. II Mr. Pierce October 31,2003 Page two lill 006/006 You requested that we contact Mr. Chris Eddy, P. E., of Engineering
Consulting Services, L 1D to discuss the scope of a proposed geotechnical investigation. It was agreed that five borings be made, one near each of the five older hangers. We will contact
Mr. Eddy to do so, and will request that Mr. Eddy contact you for authorization to proceed with their investigation, to be paid by you. As note in our e-mail to you dated October 15,
2003, we recommend that we proceed with investigation and design for new hanger door 1aternl supports using laternl rolling devices at the hangers in question. Following my site visit
today, I went to Elliot's Hardware to look for such devices. They did not have any, but suggested that I go to Allied Fencing on west Commerce Street. I did so, but the limited number
of proprietary devices they had were not appropriate for this applicatio!L I recommend that we proceed with detailing such devices that can be fabricated; it appears that these are used
(apparently successfully) at your hangers on the West Side. We will proceed on this basis, but will continue to look for available proprietary rolling door supports. Enclosed is one
print each of the photographs we took today, along with one print each of the ·photographs we took on our visit to the site both today and on October 15, 2003. Sincerely, GUNNIN CONSULTING
ENGINEERS, INC. ~J~ Bill L. Gunnin, P .E. Encl: One print each of the photos we took on October 1 S, 2003 and of the photos we took today. -·-·---------·-"" ··--...... ·-· ---.. "' ·-·····
···------·-
Page 1 of 1 Jim Pierce From: GUNNINGCEI@aol.com Sent: Wednesday, October 15,2003 1:56PM To: Jim Pierce Subject: Re: Addison Airport T Hangers Mr. Pierce: We suggest that the geotechnical
investigation of the tee hangers should include as a minimum the following: At least one boring or excavation very near the steel pipe columns at the front of the tee hanger. This boring
or excavation should extend to the bottom of the foundation or to the primary bearing stratum, whichever is deeper. This is to determine the type and size of the foundations for the
superstructure, and the degree to which movement of the superstructure due to geotechnical conditions is a consideration (or to eliminate this consideration). At least one boring or
excavation near the grade beam at the front of the hanger that supports the rolling door. This boring or excavation should extend to the bottom of the grade beam as a minimum. This is
to determine the influence of the grade beam movement due to geotechnical conditions on the difficulties with the rolling doors. You may want to have me at the site during at least the
last part of the geotechnical field work. If you or the geotechnical engineer have any questions, feel free to call me. Bill Gunnin Gunnin Consulting Engineers, Inc. 214-528-3796 10/22/2003

Page I of I Jim Pierce From: GUNNINGCEI@aol.com Sent: Wednesday, October 15, 2003 2:25 PM To: Jim Pierce Subject: Addison Airport T Hangers Mr. Pierce: As we discussed on the phone today,
one of our initial thoughts about the cause(s) of the difficulty with the rolling doors at the Thangers has to do with the connection at the top of the doors. After you left us, Dave
Foster took me to the other two types ofT-hangers. Both of them appeared to be of newer construction than the type you showed me where the distress was greatest. According to Dave, very
few difficulties had been observed by you at the rolling doors of the newer hangers. I pointed out to Dave that the connection at the top of the doors at the newer hangers had rollers
in a horizontal plane that did bear against a vertical steel plate that projected down from the building structure above the door. The door is supported vertically and laterally at the
bottom track, but only laterally at the top. My initial thought is that possibly implementation of this type of lateral support at the top as replacements at the old hangers might go
a long ways toward reducing the problems. I suggest that your staff and/or contractor(s) investigate available door lateral rolling supports and implications on construction of remedial
measures. In the meanwhile, the geotechnical investigation can be implemented to determine column and grade beam movements and implications. If you have any questions, feel free to call
me. Bill Gunnin Gunnin Consulting Engineers, Inc. 10/22/2003 
TO: ~' """' { M 'PI t;¥GE. ?1-& iff:IJD~ McCREARY & ASSOCIATES. 1/C. CONS/A.TING ENGINEEFIS 972/458·8745 6310 LBJ FREEWAY SIRTE 217 DALLAS, TEXAS 75240 DATE L-14--~G LETTER OF TRANSMITTAL
WE ARE SENDING YOU Ja'i(TTACHED DUNDER SEPARATE COVER THE FOLLOWING ITEMS: 0 SHOP DRAWINGS ~RINTS ~PLANS COPIES i 0SPECIFICATIONS 0 CHANGE ORDER 0 COPY OF LETTER 0 EQUIPMENT DATA DSUBMITTALS
J2tt>THER DESCRIPTION THpE ARE TRANSMITTED DFOR APPROVAL 0 FOR YOUR REVIEW a COMMENT ....!:1FOR YOUR USE 0 AS REQUESTED. REMARKstt0f&rJ...:B:> ~~ 1!., Dl?(?-.?£1ST [)~ ~H2-I--r£ t:.?Vt!!P--
TO: yU6 . ""' ( M PI esg<:::e, C1 """F{ t;£&2D~ McCREARY & ASSOCIATES. WC. CONSU.TWG EN6MEIS 972/451·8745 6310 LBJ FREEWAY SliTE Zf7 DAllAS. TEXAS 75240 DATE L-!4-~0> COPY LETTER OF
TRANSMITTAL WE ARE SENDING YOU BifTTACHED 0UNDER SEPARATE COVER THE FOLLOWING ITEMS 0 SHOP DRAWINGS ~RINTS ..t:1 PLANS COPIES 0 SPECIFICATIONS 0 CHANGE ORDER 0COPY OF LETTER 0 EQUIPMENT
DATA 0 SUBMITTALS BbTHER DESCRIPTION THf,SE ARE TRANSMITTED 0 FOR APPROVAL 0 FOR YOUR REVIEW a COMMENT ...e:J'FOR YOUR USE 0 AS REQUESTED. REMARKStt':?(kf..W ~~ "·, D0/?-~tsr u~ ~H4--r£
t:.?Ve?P
Mr. James C. Pierce, Jr.,P.E. Assistant Public Works Director Town of Addison 16801 Westgrove Drive Addison, Texas 75001-9010 McCREARY & ASSOCIATES. IIC. CONSULTING ENGINEERS 9721458-8745
6310 LBJ FREEWAY S/JITE 217 DALLAS. TEXAS 75240 INVOICE Date: 06-Jan-2005 For Professional Services Rendered During the Month ot Dec-2004 Project: Airport Tee Hangars Town of Addison
Design Phase Engineer P.E. 0.5 hrs @$ 1 00.00/hr 50.00 EnQineer, Sr. 6.0 hrs @$ 95.00/hr 570.00 Technician/ACAD 7.0 hrs@$ 60.00/hr 420.00 Subtotal $1,040.00 ---I TOTAL DUE $1,040.00

Mr . .James C. Pierce, Jr.,P.~ .. Assistant Public Works Director Town of Addison 16801 Westgrove Drive Addison, Texas 75001-9010 McCREARY & ASSOCIATES, INC. CONSULTING ENGINEERS 972/458-8745
6310 LBJ FREEWAY SUITE 217 DALLAS, TEXAS 75240 INVOICE Date: 16-Sep-2004 For Professional Services Rendered During the Month ot Aug-2004 Project: Airport Tee HanQars Town of Addison
DesiQn Phase EnQineer, P.E. 4.0 hrs @$ 1 00.00/hr 400.00 Engineer, Sr. 30.0 hrs @$ 95.00/hr 2,850.00 Technician/ACAD 39.5 hrs @$ 60.00/hr 2,370.00 Subtotal $5,620.00 . I TOTAL DUE $5,620.00
•• $7;5(")b.b!i ·. $oioo .. ·. 
I Classification of Locations. lelow Floor Level. Any pit or depression below the of the hangar floor shall be classified as a Class I, ion I or Zone I location that shall extend up
to said level. .reas Not Cut Off or Ventilated. The entire area of ngar, including any adjacent and communicating areas 1itably cut off from the hangar, shall be classified as ;s I,
Division 2 or Zone 2 location up to a level 450 18 in.) above the floor. 'icinity of Aircraft. The area within 1.5 m (5 ft) horily from aircraft power plants or aircraft fuel tanks Je
classified as a Class I, Division 2 or Zone 2 location mil extend upward from the floor to a levell.5 m (5 ft) the upper surface of wings and of engine enclosures. Nonhazardous location
Arc-producing equipment used in this location must be designed to prevent escape of sparks. d Electrical Code Handbook 2002 Article 513 • Aircraft Hangars 695 (D) Areas Suitably Cut
Off and Ventilated. Adjacent areas in which flammable liquids or vapors are not likely to be released, such as stock rooms, electrical control rooms, and other similar locations, shall
not be classified where adequately ventilated and where effectively cut off from the hangar itself by walls or partitions. 513.4 Wiring and Equipment in Class I Locations. (A) General.
All wiring and equipment that is or may be installed or operated within any of the Class I locations -------------------------------, ) Non-• Divlslon1 [iJ Divlsion2 
To= run. JrM fteiZc.e, ?e. t::ll'-1: &EWD~~ McCREARY & ASSOCIATES, INC. CONSULTING ENGINEERS 972/458-8745 6310 LBJ FREEWAY SUITE 217 DALLAS. TEXAS 75240 DATE q ·[01'"04 LETTER OF TRANSMITTAL
WE ARE SENDING YOU.,0'ATTACHED 0UNDER SEPARATE COVER THE FOLLOWING ITEMS: 0 SHOP DRAWINGS J2rPRINTS 0 PLANS _.0"S"PECIFICATIONS 0 CHANGE ORDER 0 COPY OF LETTER COPIES DESCRIPTION D EQUIPMENT
DATA DSUBMITTALS DOTHER ~ u. IH:t1 el.f"k:rgtaL-~£ZT.:;. e1-e1-PP-eLnAtNA12'i Z, aE-TS t: /£?11?\(..b.L .:::2PF?IFiG&T10}J'S-f@&LtMtt-.)P-f2.'f THESE ARE TRANSMITTED DFOR APPROVAL poR
YOUR REVIEW 8 COMMENT DFOR YOUR USE D AS REQUESTED. REMARKS= ~yv! lJO kl~ftJ)JI~ Pf2t2TP:c-1JoN ""2%""fE.M ?cEli?Vil?eD W-bt.J(t:pi~U4? Ff?8 DAVe iV?TFB. 
\ \ lOCAllON OF TEE ELECTIROJ... wo:G<\R ADDISON AIR ='' , .. •oo·-o· PRORT TEE HANGAR SITE LOCATION PRELIMINARY F~~ ,~~~~IM REVIEW HOT fOR BIDD~;~oH PURPOSES HOT FOR P[RIIIT PURPOSES
PURPOSES ·---~ ......... .., ....... c NdRIA 0 1...1 L____j 400 IJIIIII~ 800 SCALE IN FEET I TOWN OF ADDISON • TEXAS ADDISON AIRPORT TEE ~~~--=-AIRPORT SITE HANGAR LIGHTING LOCATION
DESIGNED BY: W.H.G. ORAI'Itl BY: M.E.G. ' ,. 
NUMBER LOCATION A (8 NOTE 1) !.IAlN ELECTRICAL ROO!.~ !oWN SUS: TlN PLATED COPPER TVSS: L20KA NOTES: PANEL SCHEDULE NEUTRAl GROUND 1. PANa SCHEDULE fOR PANEL '8' SAME i'S PANEL 'A'.
120/240V 10 3WIRE l25A. GROUNDING ElECT!lODE CONDUCTOR TXU El.ECTRIC DELNERY t.lffiR NlO BASE GROUND ROO woo ROOF I lXU EL£CTRlC DELMRY j BY CONTRACTOR TOWN OF MJOISON 0 UTIUTY XFMR
120/240V, 1~. 3W UTILITY METER SOC<ET 200" ""' CLASS J FUSES 11_.-.---_,~--_n,~~ UGKnNGPANEL Ll: -G~ PANEl "A" PANEL "A" : 1 "" L _j I I -----L __ "'_'_ J IOOKA 1'/fATHERHOO RIGID CJ.J...V.
STEEL "~IB BRUNE 12 CA. HOT DIPPED GALVANIZED STRUT & SS HA'l:DWARE WIRING DIAGRAM 01 DETAIL SERVICE ENTRANCE N.T.S. 200 AMP FUSED DISCONNECT CONDUIT FOR UNITS 1-4 200 AMP PANE\. SECTION
8-8 N.T.S. (NOTE 5) PRELIMINARY FOR INTERIM REVIEW HOT FOR CONSTRUCTION PURPOSES HOT FOR BIDDING PURPOSES HOT FOR PERIIIT PURPOSES Bcr is one inch en ..., or<ginol drowing. 0 " '1---,g
If nol one inch an ~ this $heel. odjusl scale occordingly. THESE DOCUMENTS ARE FOR INTERir.l REVIEW :~~~~ ~~Tp:J~D!SR~~Ei?NSlRUCTION, JOSEPH J. KOTRLA TEXAS P.E. NO. 56361 DATE: SEPTEI.IBER.
2004 NOTES: I. 2. J. .. 5. 6. ONE LINE DIAGRAM LEGEND "'" POWER TRANSFQRI.IER om I) 1 CIRCUIT B!IEAKER ~ FUSED DISCONNECT SWITCH ,.,,, GROUND WlRE CPT --c:::D-3 E-fUSED CONTROL POWEll
TJW.ISFORt.IER PT 0 G = GROUND ~ SOLID NEUTRAL I.IETER WIU BE FURNISHED BV CONTRACTOR AND SH.IJJ. BE INSTAI.l.ED PER TXU ELECTRIC DEliVERY BY THE CONTRACTOR 4" TO 6" ABOVE GRADE INSTALL
PER SPECIFICATIONS. CONTRACTOR SIW..I. BE RES?ONS1Blf FOR CONDUIT TO Wf.ATHERHEAD FOR CONNECnON TO TXU ElECTRIC DELIVERY. REF ELECTRICAL PIAN VIEW FOR 00CT LOCTION OF DISCONNECT. REF
SITE PLAN FOR LOCATION OF SEFMCE . INSTALL NO. 2 AWG CU GROUND TO l/4f X 10· CU CLAD DRIVEN GROUND ROD. REF DETAIL 04/EI. INSTALL I.IIRROR IUAGE FOR 2ND twiGAR BUILDING. SUPPORT STRUT
SHALL BE ANCHORED TO BUILDING SUPPORT STEEL TOWN OF ADDISON, TEXAS ADDISON AIRPORT TEE HANGAR LIGHTING ELECTRICAL ONE LINE McCREARY & ASSOCIATES, INC. CO'I'5ll!m D«HHIIS Rll/UJ-.!f.S
&JIO w ~"~"R£U~r DIE "117 ~ n:us m10 DESiaiEO BY: W.H.G. PRQ..£CT: 97 180 SHEET NO. DRAWN BY: M.E.G. DATE: SEPTEMBER. 2004-E2 Of" E7 SHEETS 
SCALE IN FEET TEE HANGAR BUilDINGS eo I \ ~··. UNIT #20 LIGHTING LEGEND SYM80!5 DESCRISTION lli LOW BAY HID FIXTURE lETTIR IN FIXTURE DENOlES 1YPE ' ' XX XX= PANU, 00. I ;-® REFERENCE
DET,.4JL S'll.IBOL XX = DETNL NUioiBER EX = ELECTRICAL SHEET NUI.IBER -OKE-OW:RHfAD ELECTRIC DISTRIBUTION " 0 ~; -' -' ~ EXISTING TXU nECTRIC DEL"'RIES POLE AIRPORT TEE HANGAR ELECTRICAL
SERVICE '"'' ,. ,,._,. AND EXTERIOR LIGHTING LOCATIONS VERIFY SCALE ~ 't ' B22,824 PHOTOCELL HOLOPHANE "MONGOOSE" LUI.IINAIRE Yt1TH ADUSTABLE TENON HOLOPHANE BKT-1-P WAU BASKET 2" T(NON
1/4" PLATE WELDED AND SANDED TO TUBULAR STEa PRDVlDE NEOPRENE WASHERS. TYP. WELD 1/4" PLATE PRELIMINARY FOR INTERIM REVIEW Bar is one in~h on g origir10l drcwing. 0 , _____ _ THESE OOCUioiENTS
ARE FOR INTERIU RE\IlEW AND AAE NOT INTENDED fOR CONSTRUCTION, Bm~NG. OR PERI,HT PURPOSES. NOT FOR CONSTRUCTION PURPOSES NOT FOR BIDDING PURPOSES NOT FOR PERI.IIT PURPOSES ~ II not one
in~h on ~ this sheet. odjust sccle cccordingly. JOSEPH J. KOTRLA TEXAS P.E. NO. 56361 01\JE: SEPTEUBER. 2004 NOTES: COI.IMERCW.. BUSINESS BUILDING (NOT ASSOCIATED Yt1TH TEE HANGARS)
PRCMOE NEOPRENE SEAl. TYI'. 3/16"JI.~I 1/2"(2) ANGLE TO SUPPORT ROOF !oiOUNT LUI.IINAIRE SUPPORTS EXISTING HANGAR ROOF S/16" 316 SS BOLTS, FlAT WASHERS, LOCK WASHERS & LOCKNUTS 1. UGHTING
ROOF SUPPORTS SKAU & CUSTOI.I FABRICATED AND HOT DIPPED GALVANIZED. 01 LIGHTING DETAIL N.T.S. TOWN OF ADDISON, TEXAS ADDISON AIRPORT TEE HANGAR LIGHTING HANGAR ROOF LIGHTING PLAN McCREARY
& ASSOCIATES, INC. .=,"ff-~n1 tLilL.4S ~~: DESICNEII BY: E3 W.H.G. PRO..ECT: 97 180 DATE! DRA'IIN BY: M.E.G. SEPTEMBER. 2004 SI-IEET NO. OF E7 SI-IEETS 
I 1-lfJ L_ r 'OlE , ("") $ ------LJ I C•l I " 20 SHT ES • A L_ ·~. ~ NOTE 1, (TW. All RECEPTAa.£5) IJll u I <•> I I TYPICAL AIRPORT TEE HANGAR-LIGHTING SCALE: J/16" = 1 -0 NOTES: 1.
ALL BOTTOM OF RECEPTACLE DISTANCE TO HANGAR ll.OOR TO BE r.IINIMUM 24 INCHES TO BE ABOVE HANGAR ELECTRICAL AREA CLASSIFICATION 18 INCHES AB<M: GRADE. 2. TERI.IINAL JUNCTION BOX FOR HANGAR
WIRING. J. SEE SPECIFICAllONS FOR EQUIPI.IENT WIRING DEVICES. PRELIMINARY FOR INTERIM REVIEW NOT FOR COHSTRUCliON PURPOSES NOT FOR BIDDING PURPOSES NOT FOR PERI.!IT PURPOSES VERIFY SCALE
Bor L9 o11e inch on original drawing. 0 II not one inch on this sheet, adjust scale accordingly. TilESE DOCUioiENTS ARE FOR lmERIM REVIEW AND AAE NOT INTENDED FOR CONSTRUCTION, BIDDING.
OR PERioHT PURPOSES. JOSEPH J. KOTRLA TEXAS P.[. NO. 56361 DATE: SEPTEMBER, 2004 LIGHTING AND RECEPTACLE LEGEND S'lloiBctS OESCR18110N (•) FLUai[SCENT FlXT\JRE dD DUPLEX RECEPTAQE SEE
E-XX DETAIL XX ~ WA!.l S\\HOl. SPST L,\"'~ .\-tt~~~o.c.l.,:> s~!l t•.M\P""· w .4-i1 ~ '5' I'?> 2M>Z. »>rC • SHT ES T A TOWN OF ADDISON, TEXAS ADDISON AIRPORT TEE HANGAR LIGHTING HANGAR
ELECTRICAL PLAN McCREARY & ASSOCIATES, INC. PROJECT: 97 180 DATE: SEPTEMBER, 2004 SliEET ND. E4 DF E1 SliEElS DESIQIED BY: _ _cW".HO'.Gc.-_ M.E.G. CRAYoN BY: 
I CROUSE HINDS STTTBA BULKHOO mTING NEOPRENE WASHER 1'<1'. I 1/4" X Y ~ H.O. GALV.W-1~ /"'"' I TERMIIOL WELD TO TUBULAR STEEL ~WE BUILDING SUPPORT -CONDUITS FOR J-BOX FOR CIRCUIT ~~£
1 PLATES /TEE HANGER) TUBULAR STEEL ~CONDUIT INTERCONNECTION WELD TO TUBULAR STEEL .c~FJ OTHER UNITS ROOf I I ~;IElO WRO TEE JOIUI. P-1000 FILLET BOTH SlOES (TYP.) UNISTRUT (IYP) I ANGLE
I ANGLE BUILDIN~ __/I ANGLE NOTE 1 (l'l'P.) _/'ANGLE v-10 UGHT SMTCH SUPPORT TUBULAR SIEEl RECEPTACLE ~ 1/4" X 4" -<1 IN FS Bm: PlATE 1/4" X 4" RECEPTACL.£ WELDED TO PIAl£ IN FS BOX
WELDED TO ANGLE CONCREIE fLOOR \ ANGLE NOTE 2.(TYP.) I <1· 4 4 . .., <1 4 /\ "" /AIRPORT TEE HANGAR LIGHTING ELEVATION A A sCALL 1-. 10·-o· TYPICAL CONDUIT LAYOUT NOTES: 1. ~E~~E 12GA.
H.D. GALV. STRUT SUPPORT SIW.L BE U-BOLTED TO BUILDING TUBULAR 2. BOTTOM OF RECEPTACLES, SWITCHES OR Mff ELECTRICAl. EQUIPMENT SIW.l BE lB" I.IINII.IUM .a50VE G!WIE TO AVOID THE ELECTRICAl.
HAZARDOUS AREA PER NEC. J. WELDING SHAll I.IEET AWS Dl.l STANDARDS. TUBULAR STEEL PAINT, RUST, CORf!OSlON SHAll BE GROUND TO CLEAN I.!ETAL BEFORE WHDING. GALVNliZING REPAIR SHAll CARBOUNE
CARBO ZINC f!l, GA!.V-WELD PRODUCTS GALV-WELO ALLOY KOPPERS ORGANIC ZINC COATING, OR EQUAL_ ' BOLT, FlAT WASHER. LOCK WASHER & LOCKNUT, lYP. 02 TYPICAL RIGHT ANGLE CONDUIT SUPPORT 1/4"
GALV. FLAT PLATE J16 STN STL ~0 CLAMP W SIN SIL I NOT TO SCALE 316 SST BOLTS. USE 2 PER INSTALLATIONONE AT EACH END OF CHANNEL 10 TYPICAL CONDUIT SUPPORT "ON CONCRETE STRUCTURES FOR
MULTIPLE CONDUIT RUNS STRAP: IRON ONE-HOL.£ CAST ~EASL.£ INSERT WITH 2" MIN. DEPTH \ SCREW & CONCRETE SST 316 MACHINE CONCRETE OR 0 FlAT SURFACES 11 SPACER IRON CL.AMPIW:K CAST I.IALLEABLE
/316 STN STL HANGER, NUTS & BOLTS B-UNE OR EQUAL CUIN£0 OR BACK TO BACK OR FlAT SURFACES TYPICAL CONDUIT SUPPORT NOf TO SCALE SINGLE CONDUIT 01 BULKHEAD FITTING FOR CONDUITS THROUGH
GALV. CORRUGATED WALLS NOT TO SCALE N.T.S. PRELIMINARY FOR INTERIM REVIEW NOT fOR CONSTRUCTION PURPOSES NOT fOR BIDDING PURPOSES NOT fOR PERIIIT PURPOSES V[RirY SCALE Bor is one irn:h
on ..., original drowing. ~ "' ... __ _ ~ II no\ one inch on e! this sheet, odjus\ scolc accordingly. THESE OOCU!.IENTS ARE FOR INTERIM REVIEW AND ARE NOT INTENDED FOR CONSTRUCTION,
BIDDING, OR PER!.IIT ?IJRPOSES. JOSEPH J. KOTRLA TEXAS P.E. NO. 56361 DATE: SEPTEUBER. 2004 I •I TOWN OF ADDISON, TEXAS ADDISON AIRPORT TEE HANGAR LIGHTING TYPICAL HANGAR ELEVATION McCREARY
& ASSOCIATES, INC. DESCNED BY: W.H.G. PROJECT: 97 180 o,._n;:, SEPTEMBER, 2004 DR.._v.N BY: IH.G. SHEET NO. E5 DF E7 SKEETS 
I ------------T UNIT #4 I l'C .. 216. flOG .• TO UNIT f6 I I I I ,-+-ocr I• I I ~ FLOURESCENT UGHTING I L REC~ACLE --------G I I I I [OJ I _,i;;rr;:_,_H RE~ACLE j_ ----24CN ROOF t.!Ol!NTE~
;----....._ '--/EXTERIOR UGHTING (m'.) -....[ "' /' J/4'C., JflO. flON .• flOG. -----, --------,--UNIT #3 -J/~·c., Jf12. f12G. r--Jf4'C., Jf12, f12G. ' I' ----r---1 ----UNIT #2 '----------l
UNIT #1 r--Jj4"C., lflO, f\ON., flOG. I I -J/4'C., JftO, liON., flOG. I ( -l"C .• 2f6, JIOG. CIRCUITS 22/24 I j I \ TYPICAL TERMINAL CONNECTION CKT f22 I CKT f24 N CKT f4 CKT /< \ r
JUNCTlON TERMINAL BOX \r---''--, (TYP.J CKT f4 ~ J/4"C .• 4f10, f10N., flOG. FLOURESCENT UGHTING CKT fJ G I iwrrc"H I I I [OJ I v G ,---CKT /2 CKT fJ N I I I I ROVRESCENT ff.il,, I UGHTING
I t!;:il FLOURESCENT UGHTJNG CKT IJ G CKT f2 I sWiTCH N CKT fl I v I RE~ACLE__l ----_ .. _'=_TCH RE=ACL~ -----CIRCUITS #1, 2. 3. 4. WIRING DIAGRAMS TYPICAL FOR EACH OF THE TWO TEE HANGARS
NOT TO SCALE NOTES: 1. WIRING AND CONDUIT SIZES FOR EXTENSION 'lllRING fROM JUNCTIOH· TERMINAL BOX TO UGHTING. SW1TCH AND RECEPTACLES SHALL BE Tl-IE SAME f>S SHOWN IN UNIT fl. 2. fOR
CIRCUITS 5-20 SEE SHEET E7. J/4'C. 1fl2. fi2N .. f12G. -J/4'C. lf12, f12N., f!ZG.-J/4'C .• 2f12, f12G. -PRELIMINARY FOR INTERIM REVIEW NOT roR CONSTRUCTION PURPOSES NOT FOR BIDDING PURPOSES
NOT FOR PERIIIT PURPOSES J/4'C. Jfl2, fl"lN .. 2fi2G. -&r Is one inch on original dro•ing. 0 ' If !lOt one inch on this sheet, adjust s~ole oe~ordfngly. Tl-IESE DOCUI.IENTS ARE FOR INTfRIM
REVIEW AND AAE NOT INTENDEO FOR CONSTRUCTION, BIDDING. OR PERMIT PURPOSES. JOSEPH J. KOTRlA TEXAS P.E. NO. 56361 DATE: SEPTEMBER, 2004 I I L_ ELECTRICAL PANEL LOCATt::O NEAR ELECTRICAL
SERVICE I I _j TOWN OF ADDISON, TEXAS ADDISON AIRPORT TEE HANGAR LIGHTING CIRCUIT DIAGRAMS 1 THRU 4 McCREARY & ASSOCIATES, INC. SI-IEET NO. W.H.G. IP!IOJECT: 97 180 . I M.E.G. DAlt:
SEPTEMBER. 2004. I Of" E6 E7 SHEETS 
,----------, I UNIT #12 I I I I CKTI12 I I I I I I I I G J/4"C.,Jfl2. f12G. CKT f11 00 #12 240'1 ROOF MOUNTED EXTERIOR UGHTlNG (TYP.) I-I/2"C .. 5f4, f4G., f4N. 3/4"C., Jf12, f12G. 2"C .. 216. 514. I4G .. f4N, --------, UNIT #5 ~3/4"C., '''· '""'·
"RC"lS 22/24 ~~~~'1B!fJl:><fC~KT;6~2~2 =$~=====~C~KT!]j>~4 CKT 22 ,_.. N 2"C .. 316, 5f4, #4G .. f4N. 1-1/2"C., 1#6 .. 5#4. f4G .. I4N. I CKT fll CKT f12 CKT fll CKT fL2 CKT 19 CKT flO
CKT fg KT 110 G G N CKT#B N CKT f8 CKT J7 CKT fS CKT 17 CKT f5 CKT f6 I "' FLOURESC<NT "' I "' FLOURESCENT "' I "' FLOURESCENT "' I "' FLOURESCENT "' I "' FLOURESC<NT "' I "' FLOURESC"T
"' I "' FLOURESC"T "' I "' FLOURESC"T "' ]l!l UGtiTINGII!J]W UGHTlNG/l!!J]W UGliTlNG/l!!J]W UGHTlNG/l!J]W UGHTING.Il.!!J]l!l UGHTING/l!J]W LIGHTINGIW]W UGHTING/W] RECEPTAClE RECEPTACLE
RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTAClE RECEPTACLE RECEPTACLE RECEPTAClE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE L--------~---------~---------L--------~------
---~---------L-________ 1 _________ ~ 1-1/2"C. 2f2, f2G., f2N. 24CIV ROOF t.!OUtHEO ~ EXTERIOR LIGHTING {lYP.) 1-1/2"C. 2J2, J2G .. #2N. 3/4"C .. 3f12, f12G. CIRCUITS ~5, 6. 7. 8, 9,
10, 11, 12 WIRING DIAGRAM TYPICAL F R EACH OF THE TWO TEE HANGARS NOT TO SCAI..£ J/4"C .. Jfl2. f12G. 240V ROOF ~OUNTEO OOERKIR UCHTlNG (TYP.) 2"C .. 6#2. #2G .. f2N. 2"C., 4#2, #2G.,
f2N. 2"C .. 5f2, f2G .• I2N. 3/4"C .. 2#6 .. flOC. -------, --------, UNIT #17 I UNIT #16 I UNIT #15 I I I I CKT f\9 CKT #20 G CKT fiS R CKT fl7 CKT fi9 CKT #20 G CKT f18 CKT f17 C:
#IS NOTES: 1. WIRING AAD CONDUIT SIZES FOR EXTENSION WIRING FRO~ JUNCTION BOX TO UCHiiNC, SWITCHES NlO RECEPIACt.ES SfW.L BE THE SAME AS SHOWN FOR UNIT fl AS SHOWN ON SHEET E6. 2. FOR
ORCUITS 1-4 SEE SHEET E6. CIRCUITS~13. 14. 15. 16. 17. 18. 19. 20. 21. WIRING DIAGRAM TYPICAL F R EACH OF THE TWO TEE HANGARS NOT TO SCALE PRELIMINARY FOR INTERIM REVIEW HOT FOR CONSTRUCTION
PURPOSES NOT FOR BIDDING PURPOSES NOT FOR PERIUT PURPOSES VERIFY SCALE Bar is one irn:h on original drawing. 0 If no\ no\ one inch on lhis sheet. odj~sl scale oc'orllingly. Jj4"C ..
3112. fi2C. 3/4"C., 3#12. fi2G. CKT f\ 9 CKT f20 ~:: ::; ~ ;;; THESE DOCU~ENTS ARE FOR INTERIM REVIEW NlO NlE NOT !mENDED FOR CONSlRUCTION, BIDDING. OR PERUIT PURPOSES. JOSEPH J. KOTlllA
TEXAS P.E. NO. 56361 DATE: SEPTEMBER. 2004 H/2"C .. 8#2. f2G., f2N. CKT #19 CKT #20 G KT fiB R CKT #17 KT f15 KT fl CKT #13 fl 2-I/2"C., 9f2, I2G., f2N. JUNCTION TERIAINAI. BOX (L[CTRICAl
PANEL TO { I I/2"C .. 9#10, flOG., f2N. tq.~~rAL 1 I/2"C .. BfiO. fLOG .. #4N. TOWN OF ADDISON, TEXAS ADDISON AIRPORT TEE HANGAR UGHTING CIRCUIT DIAGRAM 5 THRU 21 McCREARY & ASSOCIATES,
INC. W.H.G. PROJECT: 97 180 DATE: SEPTEMBER, 2004 SHEET NO. E7 OF £7 SHEETS t.tE.G. DR-''IIN BY: DESIGNED BY: 
I • Cfttu JIM PIERCE, P.E. Assistant Public Works Director (972) 450-2879 (972) 450·2837 FAX jpierce@ci.addison.tx.us · Town of Addison 16801 Westgrove Dr. P.O. Box 9010, Addison, Texas
75001-9010 
I I {IW•• JIM PIERCE, P.E. Assistant Public Works Director (972) 450·2879 (972) 450-2837 FAX jpierce@ci.addison.tx.us Town of Addison 16801 Westgrove Dr. P.O. Box 9010, Addison, Texas
75001-9010 6--6--cJ( ~ ~ fh-?t4-{_. ~ ~-9~ _Muir~~ 1-~ J.<J or-~4-
HP Laser Jet 3200se HP LASERJET 3200 AUG-9-2004 1:28PM Fax Call Report Job Date 466 8/9/2004 Time Type 1:26:57PM Send TOWN OF Identification 99723920739 Duration 1:26 ADDISON PUBLIC
WORKS To: Jc)f kafrJa · From: Jim Pierce, P.E . .11 Asst Public Wks. Dir. Company: /'r!< jfr-eo.'(f f /kw Phone: 972/450-2879 FAX: 9721450-2837 FAX#: 9n-3'j.;l-0739 jpi•tt<®<L•""'"·"·"
Date: ?-1-otj-!6801 Westgrove 11 P.O.Box 9010 #of pages (including cover):.......z:...._ Addison, TX 75001-9010 Re: 11/wyarS 0 Original in mail /) D Per your requellt D FYI Commenls:
f:: _ _lfll f"( £f;_p ~ OCallme Pages 4 invent Result OK 
August 5, 2004 Mr. James C. Pierce, JR. P.E. Assistant Public Works Director Town of Addison 16801 Westgrove Drive Addison, Texas 75001-9010 Subject: Dear Jim, Engineering Service Proposal
Addison Airport-T Hangers At:CRII:ARY&ASSOCIAJESNC. 6310 LBJ SUite 217 DaBaB, Texas 75240 972-45lHT45 Fax: 972-392..0739 We propose to render engineeOng services for the above referenced
project There will be two hangar buDdings, each with 20 "T" hangars. The scope of our services will be to design a new electlical system for each hanger bUilding consisllng of a new
service, panelboards, grounding, Interior and exterior lighting. Each hangar will have its own circuit for lighting and receptacles. A fee breakdown is attached. Additiomilly, the scope
of our services will include: 1. Preparation of drawings in ACAD 2002 for inclUSion with your bid documents. 2. Preparation of technical spec;ific;ations for inclusion with your bid
documents. 3. Meetings with the City and/or client during design (two meetings max). 4. Necessary addenda, assistance during bidding, and evaluation of bids. 5. Checking of ahop drawings.
6. One site visit during design and one during construction. 7. Final inspection and punchlist. McCreary & Associates proposes to be compensated on a time-expended basis with a not to
exceed maximum of $7,500.00 (seven thousand five hundred dollars). We propose to invoice monthly at the rates listed below. Engineer, P.E. Engineer, Sr. Engineering Technician, Sr. Engineering
Technician Clerical . $100.00 per hour $ 95.00 per hour $ 80.00 per hour $ 85.00 per hour $ 50.00 per hour Services outside the scope of the work shall include but not be limited to
the following: 1. On site (daily) inspection services during construction. 2. Change in scope. If services are to be performed that are outside the scope of work, then the maximum may
be exceeded and the above fisted rates shall apply. Page 1 of 2 
Engineering Setvices Proposal 08105/04 We appreciate the opportunity to submit this proposal and look forward to working with you on this project. Sincerely, e.:~;A p Joseph J. Kotrla.
P. E. President McCreary & Associates, Inc. DATE Page 2of2 
McCreary & Assoc. Engineering Fee Proposal Proj.,Name: Addison Airport T-Hanger Electrification CUem: Town of Alldk.·on i>I-Bpa'ld Dy : Bi/J Goff Sub•Totll Labar Coals $7,117.50 Mileage
50 Rate ($/ml) $0.345 Sub·l olal Travel Coats $20.70 Offlca Equipmefll (cad, prinling, faxing, etc.) $350.00 Total ProjectEnglneorlng Fee $7,48820 Dille : 08104/0<f Page 1 uf I Rev.
0 
~~~~~~® Public Works I Engineering 16801 Westgrove • P.O. Box 9010 Addison, Texas 75001 Telephone: {972) 450-2871 • Fax: {972) 450-2837 DATE ~-!D-o if. I JDBNO. ATTENTION RE: tLt! tiA.,A
M1 tu/I.M.d-I GENTLEMAN: it-/:, WE ARE SENDING YOU V'\' Attached D Under separate cover via ______ the following items: D Shop Drawings D Prints D Plans D Samples D Specifications D
Copy of letter D Change order D _______________________ ___ COPIES DATE NO. "" DESCRIPTION -.I-P/LdP~ ~ rhr-d"~ ·--.... JJ~-j ~~~ ~-~ ]1. '/If A/-4-~L .&. (, 11c.~ d .//' k '7' A. j-8L.
o J ·-~ 0 I (f' THESE ARE TRANSMITTED as checked below: D For approval A For your use D As requested D Approved as submitted D Approved as noted D Returned for corrections D Resubmit
_____ copies for approval D Submit copies for distribution D Return corrected prints D For review and comment D ---------------------------0 FOR BIDS DUE ___________ 19, _ D PRINTS RETURNED
AFTER LOAN TO US REMARKS _________________________________ _ COPY TO ____________________________ _ SIGNED: a~' · If enclosures are not as noted, pleas-a:=