, 1872-11-14

constructed by the Knapp, Fort Pitt, Foundry
Company, of Pittsburgh, under the supervision
Of Thos. Hill. The boilers are three in number,
located in the rear of the engine house. They
are 12 feet in diameter, 90 feet long, and OF the
Aue and tubular type. They we're constructed
under Bub-contract by F. Buschick, OF this CITY.
They are connected with the engine By q inch
copper steam pipe, manufactured under a sub
contract by Edward Smuthe, Esq, Of this city.
This pipe is thought to be one Of the finest pieces
of copper work ever made. The contract PRICE
for this engine was $19O, O,000 and it is estimated
that by reason Of the advance in material It
could not now be made for less than 930000
An engine 80 huge in proportions ls seldom con-
structed, and it's trial is looked forward to Wlth
much interest.
during the past year was %, 100000 gallons, and,
as above stated, the present Water Works, even
with the addition Of the new englne must neces-
sarily be too small for the future needs OF tho
city. And it was for this purpose that the Com
mon Council determined upon the purchase OF
the new pumping works on the West Side.
4 NEW TUNNEL,
from the crib to the shore, has already been COM
! mouced It will run from point on the LAKE
ehore, 70 feet south Of the present tunnel, ana
so, Is feet east Of the crib, where
| it will be terminated by hemispheroidal masonry
in case the Board should at any time order the
extension Of the tunnel further into the lake.
I
second well was prepared for it when the crib
WAS built. The tunnel is to be 7x7 1-6 feet; the
old tunnel was 5x5 1~G feet, the capacity OF the
new one, therefore, being almost exactly double
that Of the old one, the area Of a section Of the
latter being about Is square feot and OF the 1or-
mer about 10 feet. The land-shaft has already
oad oadn tSaA tSe Drift eastward eastward has nov
reached over 200 feet, 1872 feet Of which
ia bricked. The tunnel is lighted with gus, and
allows man to walk upright in the centre With
out removing Lis hat.
| At TIE CRIB.
four Of the cylinders are ready for use, and the
tunnel will be pushed along rapidly, but we AZ
know from experience how slowly and tedlously
the work progresses. From the land-shaft to
tie new pumping works. is distance Of e3nctly
four miles. 4 tunnel will be run in direct line
between the two points. The map aboTe e, ex-
plains the situation moro intelligib!y than
| words could do. The square divisions show the
section miles, and the dotted lines show the
parallel lake tunnels.
TIE LAND-TCNSE1
| will cross the main river near Clark street, and
the South Branch near Adams street. rms
route, if it may be go called lies in the trough
of the rock foundation upon which rests tne
clay underlying the whole extent OF the city II
rises near to the surface on either side OF the
proposed line but is from rs to LOU feot below II
until within short distance OF the ne" pump
ing works. The tunnel will therefore Iun
the same . slf lerel +nreo about %eg o'gn5S aa}
then rise about 10 or Il feet to avoid tue rock
There is no especial hurry about its construc
ton. for being on land where an indefinite mum
ber Of shafts can be sunk, it could be finished II
be let soon. In two years the West DIVISION
will have an independent supply OF water, more
than enough for itself aud tue South Division
for years to come.