New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1903-10-18
BRIDGE TOWERS.
DIFFERENT Styles FOR
Fast RIVER VT4DUCTS

xou-s-re else in al the world Is there an arEre-
-.,,- o. lofty bridge towers such as viii 500,
u on the hanks of the East River. ryonso- 49,
- nay have more bridges across the Thames
= ne some. tut they are not nearly SO long and
=. In su o. che four East River bridges +bs
- sustaining one Ereat span VIII form the --a-
.s-a+.-r feature. and because Of their go.
- they viii command attention from aea-
=. -rv-e-s of each bridge VIII be a different e,-
---sson % TIRE engineers ART. and by each viii
- sourh- d solution OF the same problem, IN a
ss~s-ert wy All four bridges win stand on a
80 of shore less than five miles long
ne ma contrast the towers CT the three -eu-
,-ssres wiz the familiar stone supports Of the
r-ooklyn Bridge Ply studying the pasteboard models
,-s--ucte6 by Henry F. Eornbostel. OF No G.
.~-r.s-,-st the consulting architect OF the Bride
r.,a--ne-t. Zach bridge Is seen 10 represent Il
.s1s-e-t we. For example. the towers OF the
vgu,s-nstu-z. or new East River. Bridge whic,
a.. now nearly completed. are almost exact r.
--osuctors in metal CT the stone towers OF The
p-ooky- Bridge From their tops hang the SPANS
= means az cables and the roadway. with its
80 PAIRS Cf railroad tracks its pedestrian maths
81 -oaEwars. The span is stiTened. as IS the
p-ooklya Bridge. by the powerful truss work OF
-, s-s7er 5el s-Tsrstructure-
-he model Cf the Williamsburg Bridge towers
H. shows Row they VII be capped with great
sr-kfr-e i-ou peaks. which VIII increase their
e.frh- 70 80 feet above the rivers level and dis
.ug-.sh chem as the highest OF their kind in TIE
49, -ne bend liz the tower where the roadway
49, has Ha-r e-etened somewhat by an csse-va-
Sc ralcrv. decorated with huge lamps Here
ves-- pedestrians may withdraw from the crowd
81 resi- as they look our over the city and river
See, towers are NOT as strong or as durable as
..o-e t-t -1ev were selected because they were
rotss expensive. Nevs-theless many engineers say
.ha. intimately the steel pillars VIII burden the tax
rzve-s more as they must be continually repainted
g. -sua.-e5 Lt is estimated THAI IL uil cost SO
a. vez- -r properly maintain the Williamsburg
H. after Sc is i1 operation.
single glance ~ -he proposed towers Of the
xarhz--z- Bridge which VIII stand midway be-
-vee- --e BROOKLYN and TIE r. i-lia-us5u-E bridges
SHOW -ra- they involve an entirely different eugi-
use-zr principle Instead q being rigid. as are
IL towers " ,-e B-oohlyn and The Williamson
b-G-ts each --ul- IS o. gigantic hinge. on the
ttc-e foundations there Viii be colossal Shoes sup
ro--1r pins and CA these pins the towers VII
-ock back ana forth slightly. according 70 The
r-ees--e cr --= weight upon Il. The roadway. as
he model shows VIII he peculiarly airy. Tor Il Will
e; have --e ---ssv1-k which characterized TIE
Ero1k-y- and the Williamsburg bridges. Instead.
n spans N.- be- Strengthened alofr. and In place
q the wound -l-e cables. there VIII be eye-ta-
cables. one Link hinged -n another, SO thar each
W v--k Independently ia responding 70 vib-a-
uc-s
--a ------s cs -hs hinge fl the towers is 10 Of
g. --s uneven pressure OF The bridge spans and
- e--e-s.e- de 70 heat and cold. Y hen there
5 LeHh- ere L-.l.A-E l- ----
ST. -ze towers VA TIP toward each ether slight
= and -1-s distribute the strain equally upon the
erchcraEes. WIKI -le Brooklyn and Williamsburg
h-5res t--s strain is mex by slip Joints IN the
--l5le cf -te span. which move out and IL as the
weight ca tle span decreases or increases, or as
rhe s--u-t--e expands or contracts.
-anuary has held - the ey-e-bar scheme II the
Board ot Aldermen because its leaders said Il was
i-7-ccacaEie Others. hOweEe-, say Il is because
Croker Is Interested = a wire company from which
she eve-ta-s would take the contract ~ Catever
Essy be IRE case re eye-bar bridge shown ~ the
c1de Is rer--5e5 Is superior e -Ee Williamsburg
TIE e rs respect. that its roadway IS clear OF
I-ussvC-E on each SIDE the pedestrians VIII
have walk. which Nj connect ~ means OF stairs
WI observation galleries = each tower. Between
people f-or The street These halls ca % used