The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1861-07-22
CrOtOn Water.

| oon rkrsENT AND PROSPECTIVE SUPPLY.
VIII doubtless prove extremely gratifying to citi-
zehs 10 learn that in the Of six or seven weeks We
snail be enabled 10 obtain three times our supply
Oh croton water The principal portion of the great main
supply pipe which Is 10 conduct the Croon water across
the High Bridge has already been laid and riycttcd to-
ge'ler Five sections only of six feet each including OK
panson joints are required At each complete the
C, hnccton The remaining work TO effect this object it is
exp cted will be finished as 10 let the through
the main by the LIST Of September next The
of WORK that has been performed AT tho High Bridge
within Il lass six months, In order 20 give IFS an
increased supply OF water, is immense, and must
be seen am explained to DO properly appreciated
The great Pipe, measuring seven feet six aud hap
inches in diameter Is nude of boiler iron in sections c
six feet long and 900 pounds weight Each Of these sec
tions composed Of three pieces Of plate iron fastened
together by 27G rvets and every SECTION H. fastened to
the next one by 47 rivets Tie pipe conveyed to the
bridge in double sections board OF steamers and from
them bostcd TO the top OF the bridge by derrick OF pecu
liar construction These sections of the pipe at first
temporarily rested fifty wooden cribs placed between
the original two pipes Of three feet diameter and not
the pipes themselves many suppose Theuppcr blocks
oil these wooden cribs supports kept well creased
80 as to allow the pipes to slide upon them they should
expand and contract by change Of temperature. And
we would here take occasion TO observe that
during the recent warm days the pipe
already down about 300 feet in length has expanded
no less than eight inchcsthat is say four inches at
each end from the centre crib These cribs are now
rapidly being replaced by permanent iron psosas about
Eve feet high aud weighing 400 pounds, set slate
flag stones with sulphur The pcdestas surnountcd
by saddles, they termed consisting of hollow
iron blocks, with long Of semicircuar form-each
saddle weighing eco pounds. The great pipe rests in
these saddles supported by the dcs,as On the top Of
the five central pcdesas pcrccptbc expansion Of the
pipe is expected provided fer but in all other cases,
between the saddle and pedestal there is iron frame,
containing three iron rollers three inches in diameter
which will move backwards and forwards over the
face Of the pcdesa and under base block OF The saddle
the expansions and OF the pipe take place
and thus avoid accidents which might otherwise occur
Tho greatest prccauton is being taken guard against
disastrous consequences from expansion of the pipe at
each end of the High Bridge by the Introduction of sliding
joints or sections which viii be made with the same de
gree of perfection, and work smoothly the piston in
the cylinder of a frs; class steam engine.
In order to make for the great main pipe be-
tween the ga,chouscs and the bridge il found
sary to remove the original pipes out Of the way To
complish this chico, without losing the advantage of
tanning them for in Of the new pipe
or other emergency, it was decided to connect the
original pipes with the gaehouses by two new
pipes laid down in slightly crcuitous routes
This plan could only be carried out by first building co
fer dam in each gatchose and then constructing gate
chamber the side Of the building This work has
successfully accomplished under the supervision Of W. L.
Dearborn Esq, the resident engineer.
The connections between the gatchou-es and the
original pipes over High Bridge will be made today
that should there be any scarcity of for brief pc
riod can thus readily be accounted for Every possible
preparation has been made avoid interruption in our
supply of water, and in all probability will be expe-
rionced
This work will be Immediately followed by alteration
of the old gate chamber meet the requirements the
main pipe and laying down the additional sections
complete the connection with those the bridges when
from 900 900 to 900 ooo gallons Of water can be
daily supplied to the city while tho capacity of the pre-
sent pipes Is only abou, 30 900, coo gallons daily
Mr.. Thomas c. Cumming who has contracted to build a
brick arch over the pipes the bridge, also thc
parape walls about feet. has just commenced the con
strucon Of dock under the bridge the reception Of
materials The granite stone for the parapet walls
on its way from the State Of Maine Tho top OF the bridge
will be finished with level bed or roadway while the
sides will be protected by rails the parapet
walls