, 1869-11-27


Water street H Anau be &AiisfacfotJ to the CON.
psuJ oxrtng eah ra,lFoad.
Alpublk and private permanent sewers ncees-
sa1ll3 Dterfesed with BY the construction OF the
tnrneL 70 BE- restored or repaired By the Board Of
Public NoftaL 6ul the contractor Ia to n1Ye no
Ehatevef fos deia!A, Or tnsartesonee
1Ay DO ~ reatoring Or repairing such sewers OF
drama All wooden seEeI1 or drafns thn c,t1,
srae,os raJ meet with 10 be stopped o. removed
Al Tnte1 Aod ~ pipes necessary to b re-
moved sre to b restored 10 \ condition a esfe
a1d permanent q before being lnte,tored with.
inch - 70 leave Al unohetIncted space Of 100
leet !of tue passaee Of vassels; ard thb nvor
must be let totally 1noosuucsed where those
good III damage done To doekA
EXCAVATION
Al earth, g other materials, removed nom
the opinion Of tho noard, for use again IN the
completion Of the tunnel. and restoration Of tho
atrec1 sorf+ces to their former condttlo1 far
the contractor, who viii not be allowed 70 OBJ
stsuet the streets or r:ver with them auT longer
than shall In the opinion of the board, be necei.
such places within OF without tne cisy Is may re-
ckiye them .ithout detriuent 10 the puollc good.
The excavation u to be made with pe1pen diculst
sides, and shall be carried to such widths and
depths as thA1l be sur1clert according 10 the
Plat fct the Foundations Should the nature Of
1he ground Fequise. u the opinion Of the board,
shall be considered eItrA work, but no tuc1slae
Of width OF EXCAVATION caused BY alides OF
cartnat. above the bonous Of foundations as
shown On the plans, shall be considered as extra
work, unles1 such edea or caTtnQe shall Be Clearly
owing TO An Increase In the width Of the WORK
wss 9e aa' sa IT, spd ID no; ssS e
must be at the rttk OF the contractor. The con-
tsctor will be required to put and keep 10 such
lie saietJ either ct he wofs Or of tha public: but
10 Interference with fhe psan1 and proceedings
Of the contractor IN this respeet will be exercised
.s,e.y u sne e. H. pac nv sSs Se
endangered, either By defect or neglect IN the
plAn4 OF proceedings Of the contractor. No paft
length than twenty feet Al time. and tie
masonry must be commenced be1ort another SEC
uuu IA opened
rea 10 amy and Ill buIldtn9A, and ali private
property along each SIDE OF the street, caused BY
The river section 10 to he all built Of brick, from
the Top he d OF the stone curb up to the digging
courre, a shown on drawlnRt: The two outer
rings OF the upper arches arc 70 be Laid Ia asphalt
nrxi by pouring the asphalt hot from the kettle
on the previously bullI brick RorE, thea each
brick Is 10 be heated and bedded IN the Asphalt.
The hrtcks must be bedded While hot; even u the
asphalt = cold. tae nf1ct must be made hot
enop. b 10 sdhefe1o
Ali Of the ntfek work IL to be bonded lodgttn-
dInal!y with pl2:e lion 80 ibches broad 1ad u.
inch thick. II nAy be directed. Tae p!ato non
win be pald Tor Is extra. : =
IT'S proposed TO fses al nc back work With
brick in the office Of The Board Of Public WortA
This, however. T. not yet dennite1J settled upon,
Y o.ds,e s s. tssPs e t5sk Ins ". y s p1d
pressed u:,tck facinK he adopted
Tne masonl, II the oshef parts Of the tunnel II
to be bnck In the ioyera upter archea ptera ahoso
ihe tnverrs, and faces Of the aoutnenta 70 al
average thickness OF tSents-six inchet It Is to
be OF stone ID the notto1l Of the piera ana anut-
ments, IN The backa Of the shutuenss, and IN tho
TEE bricks mutt be clean, had burnt. frae Iron
line and c1eckt, UNIFORM IN ahSne and atxe, and
rare \ ciear, RIGGING sound when ATuck- Iu case
lr1cks for facinEs, the snoothest br7cHs must be
tcps 70. the faces OF the Arrhe., piers Acd abut-
ments. which must preaent. vne4 nn,saed, neat
strnck znd neatly pointed.
TIE E1Krs
commencing ut each end Of the foot passenger
srrhway, are 70 have Etse OF ~ inches Let, sad
tread Of Il 1pehes net, aud to be tue End neatly
drcsted- Each Btepp1ug stone Is TO BE- feet long
and - inchea oroAl Of the best quality Of Athens
stone. Al the Termination Of sha grade Of tue
pine plank pavement, platform of stone, ~
inches thick and 10 feet square, IL to oe aid
horizontal and 70 eor1espond II e,ery respect
tnfh hammered dressed stone WORK Tae sup
porting walls Of the stalf say are to BE- OF brck
matopiy, similar In character to shas In the
eide walls Of the ktairways, 70 be noished IN q
woIkmanIise manner cqoa{ "a The bz,cE iace wori,
detcTitcd Tor tho reat Of the tunnel.
PRECAUTIONS.
Reh!nd The dock walls, mad aboye the level OF
ore foot below low water, no materials subject to
the beas1ng nciio9 OF frost WI b allo rcd Within
SIX teet Of the back OF the wall, only broken
stones or clsau gravel can be used N!ches for
gas pipes and closets for gas burners, to be bnt
as may Be directed; x .nnrv.r
under the irnu CRITTERS, and the retaining walls on
each side Of the opeu approaches. are - be oi
piteh.taced rock ashlas on ne fece, o. exposed
ten inches tn height, laid horizontal each cuurRe
! to be uniform throughout, backed with rubbe
in cement uo1ta1, equ4l IN character to that used
| for the rest oI the msaoutJ In the tunnel, and
neatly pointed -
Four vcntf1ators-swo at each side OF the river
one 10 be built Ia the crown Of the nstn arch. ant
one In the crown Of the foot PASSENGER ascn. ans
b1ck work. each 70 be about "a feet h1ga above III
arch. or as may be directed.
| aEpnlat, 10 be supplied By the Board Of Pobl
| Wo.kk hut the contractor VIII hare TO break
cook. and lsy the karnt, together WIN furnishing
The asphalt, the contractor to stAta ID hts scheoo
the price per square nd for thia xort-
| rAg1xKxTs, Fxsc1k0, Krc-
Wooden Block Payement-Thts Ia to be laid o,
bed Of like shore sant, not leas than I've tucae
th)cl. and to be in al o.her respects equal II
quality 10 the beat In any part Of the city.
Of the Warrington Street Tunnel, three and T. hAl
teet high. 70 be erected on top OF coping Of X
| tniutnK walls and II ttepA
PROTECTION 10 IHK rCHld.
| The contractor will be required to guard th
pnhllc eneetual,5 from liability to fall Into The e.
cayat3pnt. or from up.ettng their vehicles kg11u1
the earth thrown from them. during the who
progress Of tho Hort. both BY niGht and By dA>
city may hare to psy ip consequence OF neglect 9
the part Of the contractor to protect tho puhl
against injury.
T1XE or coxF1ET1oH. coeT. ETC
The contract requires that the river shall be {.
tireiy tree md uuobst1uctedr a alto North ~
!. Sonth Wafer stretts BY the arst day OF APT
1sT1, and the tunnel to be complete and ready Il
public ute. by the nrss day OF July. 1871. THIS
| About The sa.ue length Of time employed IN Il
construction ol the washington Street Tunue
The total cost Of The LASa.le Street Tunnel u {:
| tected 70 be upwaTus OF A75,00d
Tp1N1s OF pIFFERxSCE
Tnege are nuHetuuB polpts OF difference WIKI
terlef the 1lSAlle Street Tunnel superior TO, Al
nt The game tine. more expensive thaa the q
| Was s44 feet below watet or cty datum; In I
former It II to oe IS feet below. thus admitting
! m iuc1eAaed depth Of the r1ver, BY which dana
b! nkirE Of keels ETC. y e1peTsea % ne asoioe
lnsa feet high aud 10 feet wide: a. L3Salle str
the cart pasea2e II to be II feet high aud 70 Il
! wide The new tunnel y alEo materially lope
: {atopt So feet} than the old, aud corresponding
) more expensive
!. : EsrIATEp QUANTITIES
: The eattmstes Of the Boari OF Punlic WorEt,
4 TO e1caysuor, masonry, m1ser1sl. ETC., arc III
!. !. cske,
i K1eavAtJnn In 1!ver......
u kzeavaison not IN
r. CIV 10 e irmn1ed frona Woii
~ | Etnrx p, ponrx n retaining deck chamber