The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1871-06-13

span, ara consguce oil foliows:-
s K. an ar on %e And Th T. on
courses to form the bottom Of the ecveri side
wall. or ebanens thence to such hes. as re-
ssR' l1s az !. ss
Wng walls a, the ends are s sons ssaSs II IL G
feysnt forms ora as - circumstance iE required
similar 2 that above described, except they have no in.
There are Ave road culyerts of fourteen to twenty
fest SPAN constructed Of masonry Of the character
"Thsre are thyhree venato constructed to give fres
circulation Of air through the aqaeiuc
1s ase a nas aa e an % nS
over hs ~ ana are constructed with wen
perng towards the top opening fifteen inches IN
aAs s ar: =. b
vast. Weir which all the purposes Of VENT Al
cent Ventilation. '' " ~ ''' ''e' anu '''''
There are slr waste wes constructed the line Of the
aqnede 90 arrange to allow the water OF when
from the aqncduct necessary They are
aa sas The arc OF sssi
Ssaa and n' h Sne ~o ase
M cast non socket. The Mater from the wsrs gates
cusde channel stone bnlins with brick arehed roof.
nances.
The southern shore the Cotou river the point where
ne dam located Il Enelss rock, moderately slorins up
far mo the RIVER me a p% b 70 greet es
a. now Waer IN Tue river ana was an ,oitant o5jcs
ITO effect this the northern abu.men
70 bn M A. h n hoIS was to extend and from his
the slope the hi and thea cn, the hill away
making openn sufficient FOR Of The lam
more rapidly mo The river Than supposed, when
than first located, anay an atdcal foundation had
to be made for a small portion oft
IT intended 10 make the waste OF the lam 100 feet,
with abutren.s OF Gig feet height consequence Of
river was found diaeali 10 obtain the desired length y
| and a he
END aud sow ne way an average
the southern aenmen, and The agaedu0t being
;A .d' tho head y unss ea g ss
nrsush the .sa rock tins flowed hs gateway
OF the RIVER The water enters the gate chamber by arch
double gates one SET Of guard gates Of
cast IRON in cast iron frames and regulating
rial The gates all eighteen by forty inches and there
are ps s IN each s They are all by means
"The gate bukheass constructed of well
| dressed masonry, laid no in hydraulic cement.
I'm the north abutnent waste culvsrt has been
tines Be wa.
to the liver at ordinary 'n me ay IN ft Se ee
sraStlon q .is this Si sSanae
ee wa" fec. above s IL. wsr SIDE VEN winch
dam, and designed to be ay feet Vide on the the
sS but was ss not the full tn.
5snSmsn stood WELL and gave indications Of failure un
s n % a"a s
h a ice o the s
vo broke down the unfinished protection wall
and aSaimsn sustained but lit injury saeh
0 a ana the '
completed tn, ta mid. Width and the protection wal!
the work Sa have PSved ADEQUATE 70 The The
lee, on By suF Of nysae Stone
sasptrs sS feet waste weir This work presented ali
the work partially into the h It was necessary 70 form an
IN ss
feet In depth below its ordinary level sub ordinary
MIR ding m
means form another channel for 1t TO until ae
"Had been admissible to cons,ruc. the with timber
IT, would have IA. less But the
me most permanent and durable structure that
"The greatest height of the ger Of the dam forty feet
above the low water Level and nyfvc feet above the bed Of
the river the width of the masonry at low water line Of
.rhe form the lower face commences curve, de-
scrbed BY radius Of IS feet and continues within about
feet carries the face over and meets the Uack line OF the
wa The lack Line So, =, s up Win
hs face Of large and Gu Nth
Gu. o the inc OF radius Of curve ''' '0''
e @ an ws OK ne ., w
Of one to i've on the upstream face The norh end q the
the sSs q s s
: bots and ssna l4sn y ,;n,
sonry and the remainder with loose stone and covered with
s.sv e. y s e..
"At3Co feet below the main dam second dam Is In pro-
raSc witch VIII he wsr Back O. oven :
apron e. The main da and form pool to check the water
Golfer dam was constructed 'hc ncose aeou,
Smn n m.a s s ss nsa. The Timber
able distances parallel with the DAM hng the
as% ys
departure Sa. been found necessary the structure e
aThe con,raStors. stisrs Mccullough, Black McManus
and Hepburn have ev need highly commendabie energy
rh. ya,sT the rive. back Eve n.. and
4"
aowea margin 80 as 70 give four
hs ss wa sr o~ @ the az the 5
OF the tunne level averaging ten feet below be
-: AourDror BRIDGE At srSG SING.
"1hs Sing Sing k where It crosses the line Of aqgednc
sixty three " fce. below the grade line, Or seventy
%
north end Of the valley that spreads oa from this gull
under, Tie conduit; The principal work, b.,e E
as sFs s an e 's rise si he form i
or @ s os s esa r. s o @ a arr g.
work constructed OF wei dressed masonry, laid IN
interior and and a, The top by
sis h Ss a aSr s a
water that might leak from the conduit to
and at @ The e' aas M sa
sss up s an e"E ss eass os
the frost and on any water .hs' leak from the
| pet wall The conduit this trdge Ia
structed of stone and brick masonry, arranged
az to receive a lining Of cast iron, the iron being
back In 10 receive n facing brick over the
bottom and sides which further three
Of hydrac cemen, pasierng not probable that
considerable quantity OF water would have escaped there
but 10 hardly possible to make
mpervIous that VIII show wet appear
ance on the exterior wall and the act of frost in this eli
mate will produce in such cases deterioration that be
slow but Will eventually destroy the the
lance Of using every precauon to guard against the
| eat leakage.
"This bridge the contrac, Of Young
Scott Of Philadelphia, and the conducted
Young OF the hrm, who the frat
inepce work on the alueduc II s due To Mr. Young
this work was thoroughly executed the arch proved this.
when striking the centres. II did
quarters OF inch and has
slider a very small settlement for so large III
| HAR Eng RIVER BRIDGE.
1.-The width OF the river at the place where the aquedct
line crosses II $40 ieet Mt ordinary high water mark
has been before stated the shore the southern side
bold rock rising from the edge
thirty degrees to height of go feet the northern side
strip OF table land forms the shore, and extends back
from the river 400 feet TO the foot OF rocky hil
which rises NJ angle o a