New-York tribune., 1883-03-10
: floors and sometimes only in the easements ana
A NEW AorEpucr NEEDeD.

NO 0TO
.bo,ld be built immedatey that II should oe iaiEo
onh to carry all the available water in the Crotoh
,ro..r shed and together with the existing aqeu"'"
anv additional supply which the city may here"o' &c
cure I'm that direction from other sources IN oroo ="
a is the aaueduct should in Judgment he not 'eSs
than fifteen feet IN clear inside diameter Con""'
this diameter will rot than hiteeh per oen,
sbove the cost OF one twelve feet In diameter anu WI"
have canac;tv greater by two thirds rms cohuuV @
sht uld. when practicable, he Ouil' ID 'o'N ~
is enst6 II built the proposed dam at t quaker SSe
Bddge - SedgwicK-aye VII Will We to E fo the same
point win he twenty-seven ana threequar1eI NH Ills 81
}{roi tho evidence before we believe mat such an
,ad'f namely fifteen feet in clear inside dla1 'ter,
lined with twelve inches OF hck 0e pilI at 80 ~
not exceeding $500 per mile prOv ling the wora ne
done with the attention energy and economy with whlch
il would be don 10y private parties IL Is aisn ou,
half years from commencement either from the pro
posed dam at Quaker Br ige to ScdgwlcK-aFe " iIon
the CrotOn Lake 10 the same point
PLANS FOR THE STORAGE OF WATER.
The statistics of rainfall in the CrotOn watershed in
connecon with the ascertaned flow of the river at Gro
ION Dam show that this watershed "a capable OF Iur-
nshng at least $50 100000 gallons per DAY from the
nature o. the water the flow OF the Crotoh
River Is extremely variable-yarylng from ABOUT
10 600 TO gallons per day and In order
10 secure constant supply all times it is necessary TO
impound this water Ia reservoirs located In the Croton
watershed or elsewhere the line of the aqueduct Al
present there are storage reservoirs follows: Boyis
lakes representing IA all total capacity OF $3.50 mill
ion gallons, by report OF the Cmet EhHihee5, - d
10 he certain of supply OF one hundred million gallons
of water per day. it is believed that IN accordance WIN
the plans the Department OF Public Works ALREADY
made additional reservoirs of capacity OF al
least four thousand million gallons shonH ne puit at
factues supply of one hundred million gallons per
day will not be sufficient and 1t des9eg s no avsS o Is m
fast as shall be needed ior storage OF suo Uni
quantity OF water in the Croton waer-sheu as VIII
all h, t1cfeIrOn.
We have considered two plans or storage o. water uot
entirely different but OF which one may serve to supple
ment The other By Of these plans very lare reser
vor e. 635 including the present Ctoloh Ltheh
know rs the Quaker Bridge Reservoir and OF capacity to
;mnonnd thTty-two thousand million gallons OF aVaa-
bile water is proposed very low down In the Crot0n VAL
ON the roton River and its main branches at and above
the present Croton DAM II the first plan is adopted,
is deemed advisable to build one OF these smaller rSer
yors near BTewsters station TO be used as an aualry
TO either large reservoir we nave e1anea @ sneSe
vors aud also the plans ana e. 'as , IoL tne 1, s ~
Bridge and the surveys seem to have been very care
prepared
THE PROPOSED QUAKER BRIDGE DAM.
The plan referred In the resolution Of your honorable
body contemplates the construction Of this dam at
ouaker Bridge which, when completed, would be the
largest work of the kind in the world. From the ev-
dance of engineers and contractors unanimously con-
clude that this structure Is practicable provided IL he
built on solid rock with width ut the bottom quite
eoual TO its height that IL can he built Tor sum within
construction as we have indicated respecting the con-
tuction Of the a1neduct that under such conditions
can be built within fve ana one-nalI years rom tne
commencement OF the work; ana mat II can oe maue
safe durable and sufficient for the purpose Tor Whch
designed ,,,o, n or,r,on as 70 whe,ner this ouaker
rdc nam sbonld he built or separate dams storing
water in the CrotOn basin at aud above CrotOn Dam,
containing the plan hitherto adopted or In the
line of the aqueduct and also rs TO whether In case tue
Quaker Bridge Dam he built any additional reservoirs
should built besides the one already indicated near
Brewsters Station
A COMMISSION AND CONTRACT WORK INSISTED ON.
We regard this question one If very great impor-
talce and we recommend that IT be referred to an u-
prejudced commission, which shall be appointed in such
manner to secure the greatest lmpartialty, ana
which snail have charge of the construction OF the work
The derison OF this question should depend In great
measure upon the healthfuness Of the water TO be i'm
pounded and supplied by the two plans upon the time
IA will take TO build the several dams, upon the time
within which a sufficient supply OF water will be fur
nished 10 the city by each upon the comparative ultimate
cos. to the city of the two plans ana upon sHch Othf
considerations as shall properly bear upon the question
for hearing and producing testimony ana Tor the e&a-
Ne are unable to recommend whether the water from
sedgwlck-ave., across Harlem River should pe carried
over High Bridge other bridges under the river
The IA before regard 10 the nature OF the ground
whether rock otherwise, and also IN regard to the
ability of the bridge to carry the adqtona "elg' are
insufficient enable to form an opinion lhls Is III
great measure question OF the cost OF the tNo plans
We are however, OF opinion that II building tunnel
under the river win delay materially an increased sup
nlV of o
should he utilized TO prevent such ueay so iar a. th
can be done with safety. ,,s
damages other damages OF any kind or any eXcaya-
tions other work winch NAY become necessary else
posed lake for proper storage basin The prices are
beeye ed to be adequate prices at which the work e-
mated will pay fair profit. and when proposals are
aked il is believed that proposals to do the work in the
manner herein suggested, by responsible contractors,
,r;I no lnwer than those named.
In our opinion this work should he done only by com
netent and reliable contractors as far as practicable
vnos noul he
for the completion Of the work both according to spec
cations and within the time which shall he agreed upon
10 the end that the work shall be done the best and
most reliable and in the shortest time practca
BILE Everything il based upon the works being done
under the direction OF commission rcluON ed nom paTI
san influences and from the vexaions and eXtoruons
which often surround public work III ths aqedIct ana
the proposed Quaker Bridge Dam arc to De bIt by any
other method than that herein suggested we are unable
make any approxm estimate OF tne cost or o. tne
time required for the completion or the WORK IL Is
earnestly hoped that this work shall be done by com
mission selected from our best clIzens ana tIaI II nay
be done-as the existing Cr0tOn Aqueduct and other
works connected herewith were done-n a manner to
reflect credit upon the city and honor upon those having
charge OF the work
SUGGESTIONS AFFECTING THE PRESENT SUPPLY.
From the evidence before there be question
that there great waste OF Cro0D water IN this city.
1t Only necessary state the uumbe Of gallons daily
delivered TO the city be convinced OF this fact It
will take several years by any plan increase the sup
ply OF water the Croton watersheds meanwhile the
health security and necessary wants Of the city require
that until additional supply be delivered waste should
be prevented waste OF water at this time by any citizen
disregard of the happiness and health Of
fellow citizens j. almost criminal We recommend
that all powers be given to the department OF
Public Works to prevent all reckless ana unnecess
waste of until increased supply be delivered 10
the city. and that this Department be directed ~ use
such powers effectively 10 this end.
We would respectfully call the attention OF your hon
orabe body the Importance OF restoring the Forty
second ST. Reservoir to condition 0i usefulness ana
efficiency, and OF maintaining II until some other ade
ouate OF securing pressure Of water In the lower
part OF the city shall be provided We informed by
the engineers of the CrOOn Agueduct that for SUN not
exceeding So 900 the connections OF this reservoir with
mains he restored, and that by slight
Encouragement OF connections IN the pipes the whole
force OF reservoir be quickly directed upon
part of the city below it where a fire may In
order that this be accomplished with the least posi-
bic DELAY earnestly the repeal Of the law
whcf rOyides for its removal To this end We have
prepared and forwarded for the considera-