, 1866-08-07
sixe OIL the Passage WaYH-Method for
Fenttlation-NInterta for NuIId-
fnE-Fun Account OF the Grcat
Public Conyenience-Restric
tions ana PriyaIccca

AE E1G<k -. u. H. Ia III N3U8GI.
The ordinance for the building of a tunnel un-
der the river bus been before TIC Council for over
three years, during Which Zinc half dozen loea-
mired upon ii isfen tcs a. VI Washington @ S1 si9eet
was about the first which received favorable cor
sidc'atton and aiser deciding to remove to Adams
strickland indeed passing an ordinance to that
etect-and strongly favosing State street, The Inn.
ri protectors returned 70 their rst love. and def
nisls sc,ted up9gn the stt T. pamcd street
which have sccn determined upon BY Tho Board
OF pnIlic Works, the 1nIBuSE is enabled to pre-
sent 10 Its readers correct and extended account
Of what the tunnel Is certainly 10 be.
TIE EXACT LOCATION.
- The tunnel which is to pc!iorate the South
i!s centre line IN ,hc Centre Of Washington street
Ie Of FranGltn street and the western to teFlni.
a'c t both II f of es ron Ct Glitter to- !ssn ssst
established grades Of the streets, are to remain
undIs,uibed. The bottom Of thr tuunr1 Will, in
inches below low wa.cr. The e1ades between the
snds q .he app. caches asd .e ecnrs Of thc rlser
each way from ihe centre, where there win Sc q
risc Of one foot six inches.
GENERAL DESCRIPTION.
TIE tunnel nnder tue river Is 10 consist Of three
passage wnys; tt centre one to be ror foot pnssen
Eers, and The siac ways for vehicles drawn By
~ TUE MIDDLE PASSAGE WAY.
This passage way is to be iourteea and ave-
slxihs feet in height. betweeM the bottom m Of tle
upper cfch ned tic top OF the 1nreft- tdo N1uln
viii be ten feet. The upper arch will bc q acmt.
circle, aud the lower 4 regiment with radius Of
ten feet. The side walls are to be perpendicular
ns ~ sic to o. s osRns 'sh
10 project horizontally SIX inchcs, and lhen dror
pcfpendiculaE1y twelve inches 70 the ekew backs
horizontally six inches beyond the bottoms Of The
footings ard then drop perpcadfcularly to thu In
vert
TIE Otter PASSAGE wA1s.
Each Of the Side pass age ways are 70 be eleven
fcet IN width, their invets TO be ses,ncnts will.
radua Of Ten feet, the height bling fifteen feet;
the other Interior dimensions to correspond with
those Of the middle passage wny. Tho perpen-
deulaf walls 'eMssn The ays vii be
portions Of the outer abutments to- be
ionr feel. tt:ek; the bottoms Of the. middle
walls to be ALSO Of thickness Of four feet; the
bottoms Of the abutncnts to he six feet thick 10
tie tops Of lhc skew bac!;s. ard dse teet at tue
foo1ings., Tie inselts will be twenty Inches thick
and tlie upper arthes twenty -four inches on tAe
hacks Of tic ahutmen:s will continue upwards,
nerpcnaicularly 10 three feet above the springng
Nh aud s pelnf
Inches abo.e The top ui the outside Of the upper
arcncs. THIS 1ag'in;; eous2e, which is to be ten
Side or The :he tannei to 81 tic S otssr. A>' ''' 'A'
The scetion of the tunnel Tins described will cx-
tend entirely across the river, distance Of 1d5
IN nll other respects The section of NE
tnnnrl 115 ,ir f. to he .hc same WAY from TIE
eight feet except that the niddsr passngc.way !.
10 he pierced on each side Of the river. inst outside
Of il!s dock lines. ;or 3ai;-ways mp tos,he ttrses
= side dimensions: Each stairway is 70 consist
rel e ~ 1rf e'epF e''h WIN
each way irom ,he dock ilass. thc outside passage,
CT, so that ID distance of 5a feet. tbe two inside
walls OF piers between The middle or other passage-
waye terminate in one Of the same thickness and
from the dock lines each side Of the river, the
section Of the tunnel changes to q single opening
hbfgnnns here w Mtah Is q e.
Width Of l51; fec in distance Of ii; feet, Or to
dock lines. ii ifc points ls0 feel each way from
the dock lines, the centre Of the eiuslc passage
way begins with height between the top Of The
inve and the bottom OF the top alcs, Of v!s feet.
Thu foundations Of the abutmcnts 10 BE- 8 feet
broad TO height Of S feet
At the points feet each way from the dock
hesit u iss; fvet Sci,Seen ihe top q he inve!t
q Be I !s ipehsa dick M sn It'd T. ialIaf d q tset
and ior isct up, ilen G.: tee: OF i: Inches up.
Zen feel for il inches 4p, and then feet ioE7
S ss IT. IT, aSnfs ssh hs e iSe fs nss
feet The upper alcs, 10 be IS Inches thick on tic
sides and aoinches on Top.
line 10 pc rolnr vi; ct farter easi, OF sis iset
from The cast dock LING, the section Of the pas.
cage way is 10 be uniform throughout Al Tits
stes, % md nd tbe 1emaipdcr % Of thc approssh 10 thc
west line Of franklin street, further distance Of
In hcigh: nnd width of base. These walls arc 10
be twenty five feet hiE iEl above ,hc holtorns where
,ncy the sose% rp aud M sss ess
thcy terminate, The top width Of each wall is to
be evcTyN here two feet
linz. 10 point a71k feet further west. His itct
nom the wcst dock linc. tho section OF iac PAS
saEe-way Is 10 be uniform shron=hont. At MI .s
l,c tunnel, hcslls ard continues to the cas-! line
Of Clinton street, with side walls tle same in all
tSnnnei escep. 6 II enE FL witch Is e Jc set
Will be well i've feet in diameter, By eight tn
another well under the steps Of tue cast entrance
house. This arrangement is intended ior INC pnf,
Poses Of & hfo'1Gh 1c Sac. ,aa wall q
The approaches 10 The tunnel OF cnca eide ant3
THO single ami side passase-way'. arc f0 Dc pass,i
| THE coFFLH DAMS.
As already well known 10 the readers u tho III.
ursE. ii ls proposed TO construct 'sc tunnel ey
e s
tie river. within spacr, norti, and tonth, Of moi
over $50 feet, and east and west OF NOT nycr ~
sass @ II s.sseis Is cnli1c{y unosstruetct. Upon ,ht
completion Of the work. rucl, portions Of tho co(
fer {a,ns may still remain viii bc entirely rc
moved, go NJ IL leave ac river As deep anu as IN
obett,lcted ns at present.
| EXCAVATION.
All Garth or oihcr E,atetisir scr,ovea from hs
excavation. mud Lot considered necessary to ir r.
placed will br ihe property Of The contractor. BY
lie viii not be- allowed to block up TUG streets VIII
II, and must ren,nsc IT 10 places mol con.idcfc
detrimental 10 the public Cood-
/ FGtSOA7AoS.
| The Il LuE1afionR arc 10 hc everywhere unuef III
trn,cl. Including al! the sovsiea n7ehways; u. :
dating The p.ogrcts OF The work OF eucb 4 na.nF
rs % to .,nl1iie IIir,f Mt arrangement. :,
low .hc bottom Of The abnt.nrntr, gisrs and ir
vets fs be Two feet, and Ibis slcuth is 70 cxte
from end ~ end Of ::c covered r9rt'nns o. shS nI
The tfdcs Of ull the in,csts are 70 10 allied VII
concrete Of the same kind. aud put down IN layer
sx nchee thick. parallel on The "ndc; ID ;, ss VT
The snItacc Of The foundhttur and M ill other n
epcets like The layers In tho Foundation.
The faafonrv is 10 hr Of brick III the tnycrts m
facrs oi Ihc n6uinleLts 10 M average ,hlckncss {
twelve inc9lcr. II tx TO H ot ffonc ln tug hoitoi
et 1'S rlcrr and atrn,mcnts, in the hacks Of tt
aln'mcnis, and sn the spaudscl backing of all IL
! Tie rtoRc masonry In the ,hnlona Of th,.. pier
md in .s asnimens up to the rrr'nsinS l!ne* ,
eou:te.. except the TWO lowest eo"rscs, which al
: TO- be 1imrn.i0r: ,.--
ar,d for aho,i distance, on each Side of The r,.
roltiun Of tho inEn"l. Joint of sheet ltal. &
; lAc puEpo=c Of certainly preventing, 'caknS'
Saet. cf iSe ssasmcn,. and nd il: naurni so,i vi
he il'lca wth @ so1'e:r,e. c9"a' tn quality to ii;
IN eare tic natn, ii su staala rcqulre,t. asranc.
foz "puiai'ns," 70 to make i. firm antl solid. .