Morning herald. [volume] (New York [N.Y.]) 1837-1840, 1839-08-17

The expense OF excavating the reservoir may be
reduced, by reducing the depth OF water. But when
il is considered that the heavy work in the vicinity
will probably consume all the surplus earth and rock
it will afford, the economy In this respect will not
appear important. Other expenses will remain ma
teriay the same whether IT is designed for ~ or 10
feet water
The reservoir will contain 25, 1867 900 cubic feet,
l5S millions imperial gallons equal to the full capa-
city Of the aqueduct for (say) 81 days; add to this
i9OoO0OO imperial gallons, for the contents OF the
distributing reservoir, and we have total reserve
in store of III millions gallons. This would afford
(nearly) ~. millions gallons per day for days. II
has been stated that 900 inhabitants may be
supplies from the main trunk Of the aqueduct below
ManhatanvilIe On this hypothesis at least 900 900
will be supplied from this reservoir. The reservoir
would then furnish 20 gallons per day, for days. to
each inhabitan But in the event OF any occurrence
that should render necessary suspend the opera
tons Of the aqueduct, may presume the supply
would be further restricted during the suspension
and not than Is gallons allowed to each inha-
for (say) II days The adequacy Of this provision
depends the perfection Of the aqueduct should il
be able "a perform its Office without interruption,
very little storage reservoir would be required. But
in work Of this magnitude, whatever might be the
and skill exhibited in its cons ruction il would
not be prudent to hazard important interest to
contingencies that no sagacity may now anticipate.
consde rable time will eapse before the wants Of
the city will reach the capacity Of the reservoir, as
above stated, during which the works of the aque.
duet will have been proved by trial, and have &C
quired solidty, and thus remove the probability OF
serious interruption.
Troa Pipes -rrom the receiving reservoir south,
the country falls much below the grade level as
To leave doubt of the proprety ri continuing the
aquesuct, by means OF iron pipes to form the con-
ecton betwecs the receiving aud distributing re-
servoirs IL is therefore proposed TO lay down pipes
CONNIE ncing at sIth street. the east side Of the
receiving reservoir, where the ground is favorable
for the purpose, and carrying them by a curved line
into thu 9th avenue near 10th street; thence TO
tnue down the 9th tn the location for the dis
tributing reservoir on Murray's Hill. The whole
length Of the connecting pipes Is 10, 40 feet In this
distance ID is supposed two submits I'll in the
grade 81 the avenues and il will be desirable, in
order 20 have them OF easy approach, 10 have the
pipes and al uniform depth below the surface,
II is proposed To- conform to the designed grade OF
the avenue in layisg them down. At the two
mits that in the pipes, II will be proper to put
IN air cocks for the accommodation 81 which small
building about IL feet square will be necessary, to
afford protection To the cocks and the means OF APP
preach at such times ne may be necessary. The
being leo feet wide, II ~ presumed there
be objection To such building in its centre. The
grading IN this avenue is nearly all rock, and will be
expensive.
Ii NAV he estimated that 700 900 people will ulti-
mately derive their supply from the distributing re-
servcir on Murray's Hill, which VIII depend on the
connecting pipes under consider ration. At 30 gal
Ions Tor each inhabtant, II millions will be required
for the daily supply. Three feet pipes with fall
Of feet between the reservoirs, viii be sufficient to
furnish this quantity; and IL is believed extraor.
diVary demand would reuqire than feet fall.
| 18th only two feet pipes, the head required To
produce this quantity would be about III feet The
latter deducted from 10 feet would leave the water
in the distributing reservoir lOja feet above mean
tide This makes no allowance for extraordinary
demands which would produce further reduction
IN the elevation &c the distributing reservoir Three
feet pipes will ultimately be required, but only two
win be necessary in the first instance The 81 pipe
may w. wanted in 90 or 80 years and as there is No
| particular object in comparison, the estimate will
provide suitable foundation for three but only the
| laying down of two pipes.
4 Esitnafs for CONNECTING Pipes.
| Grading. foundation cock and buildings for DO,
e-timstsd s6ooos
W. 4sn sea f.tt Of feet pipe, PEI detailed ,sli.
mate for Harlem river, al $40 As, @y $50 No. GqUo