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2Tower
www.PaperModelsInc.com Patent PendingPaper Models, Inc.
WORLD TRADE TOWERS
World Trade CenterNew York, New York, U.S.A.
Statistics:• Built: 1970 – April, 1977• Location: New York, New York, USA• Completion Date: 1972 (Tower One), 1973 (TowerTwo); destroyed September 11, 2001• Budget: $500 million• Cost: $400 million• Height: 1,368 feet (Tower One), 1,362 feet (TowerTwo)• Stories: 110 each• Structural Materials: Steel• Facing Materials: Aluminum, steel• Architect(s): Minoru Yamaski & Associates, Architect,with Emery Roth and Sons• Engineer(s): Skilling, Helle, Christiansen & Robertson• Tower One was 1,368 feet (414 meters) tall;• Tower Two was 1,362 feet (412 meters) tall;• The Tower facades were constructed of aluminum andsteel lattice;• The Tower floors were prefabricated trussed steel, 33inches deep;• The Towers used tube construction with closely spacedcolumns and beams on the outer walls;• There were no interior columns in the Tower officespaces;• The Towers rested on solid bedrock. The foundationsextended more than 70 feet below ground;• Each tower contained 104 passenger elevators;• Both towers had 43,600 windows;• Approximately 50,000 people worked in the WorldTrade Center complex;• The two towers contained nine million square feet ofoffice space (nearly one acre per floor);• Owned and operated by the Port Authority of New Yorkand New Jersey.• The site contained 16 acres with buildings groupedaround a five acre central plaza;• The site is bounded by Vesey Street on the north,Church Street on the east, Liberty Street on the south, andWest Street on the west, about three blocks north of theNew York Stock Exchange.• The Observation deck, South Tower, WTC 2, floor 107(summer hours were 9:30am to 11:30pm).• Skylobbies on floors 44 and 78 were served by highspeed elevators.• The site contained seven underground levels includingservices, shopping, and a subway station.The two nine story Plaza Buildings, with roughly ell-shaped plans, flanked the main entrance to the complexfrom Church Street, with WTC 4 on the south and WTC 5
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1Tower
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WORLD TRADETOWERS Tower
1
Tower2
Page 2 of 2
The
Wor
ldT
rade
Cen
ter
was
loca
ted
inlo
wer
Man
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nsis
ted
oftw
o,11
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orie
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wer
s(k
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the
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ower
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smal
ler
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ings
.T
hese
tow
ers
wer
eth
eta
llest
build
ings
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ork
City
and
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y-sc
rape
rsin
the
wor
ld.
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undb
reak
ing
for
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truc
tion
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onA
ugus
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h,19
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teel
cons
truc
tion
bega
nin
Aug
ust
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.Fir
stte
nant
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-pa
ncy
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neW
TC
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r,19
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ndoc
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ncy
ofT
wo
WT
Cbe
gan
inJa
nuar
y19
72.R
ibbo
ncu
tting
was
onA
pril
4,19
73.
Bot
hth
eG
alle
ryon
the
107t
hfl
oor
and
the
Obs
erva
tion
Dec
kon
the
110t
hfl
oor
(the
wor
ld‘s
high
est
open
-air
view
ing
plat
form
)pr
ovid
edbr
eath
taki
ngvi
ews
ofal
lof
New
Yor
kC
ity.
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sebu
ildin
gsw
ere
com
plet
edin
Apr
il19
73.
The
build
ings
wer
elig
ht,e
cono
mic
alst
ruct
ures
desi
gned
toke
epth
ew
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brac
ing
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tsid
esu
rfac
es.
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stru
cted
byth
ePo
rtA
utho
rity
ofN
ewY
ork
and
New
Jers
eyin
the
earl
y19
70s,
the
Wor
ldT
rade
Cen
ter
tow
ers
wer
e,fo
rth
eir
time,
the
best
know
nex
ampl
esof
tube
build
ings
.Tub
ebu
ildin
gsar
est
reng
then
edby
clos
ely
spac
edco
l-um
nsan
dbe
ams
inth
eou
ter
wal
ls.
The
clos
ely
spac
edco
lum
nsan
dbe
ams
inea
chto
wer
form
eda
stee
ltu
beth
at,
toge
ther
with
anin
tern
alco
re,w
ithst
ood
the
trem
endo
usw
ind
load
sth
ataf
fect
build
ings
this
tall.
Asi
defr
omw
ithst
andi
ngen
orm
ous
win
dlo
ads,
the
Wor
ldT
rade
Cen
ter
tow
ers
wer
eal
soco
nstr
ucte
dto
with
stan
dse
t-tle
men
tlo
ads.
Bec
ause
the
tow
ers
wer
ebu
ilton
six
acre
sof
land
fill,
the
foun
datio
nof
each
tow
erha
dto
exte
ndm
ore
than
70fe
etbe
low
grou
ndle
velt
ore
ston
solid
bedr
ock.