The Jersey City news. (Jersey City [N.J.]) 1889-1906, 1898-02-11

watcr-iinc OF the reservoirs, and NOT less thar
where i may be needed, which IS to be in
cluded In The eenyeyance OF the reservoir sites
e j &c s fos lie 1 erflr sea Matersiine N NJ case 81 Lax K
Hopatcone or Greenwood Lake are offered az
reservoirs provided that the bidder specifies
those lakes he wishes excepted therefrom, and
provided further that he succeeds il prevent.
exercise Of the powers herein placed at his
oi s Or BY other means.
ce pie e asbth &c reservoirs shall in all cases ,. es,
Netd eisnt rect below the full water leNel
throughout seventy-hve per cent. OF the en-
tire area OF the reservoir.
lie reservoir dams may be either Of ma,
sonry OF earth einhankinents, as may be best
suited to the different localities. They shall
be OF sufficient height and strength, of the
best adapted shape, and built In the most
substantial and thorough manner, OH properly
prepared foundations, With the necessary eff
ana vaults, gates, valves, screens, and al
olher appliances and appurtenances proper for
slope walls, ~by-wash, waste-weirs, blow,offs,
Grams and waste pipes, and they shall De
provided With such sufficient. space or area OF
land along the foot and side as may be nee
essary 10 protect the same, and shall be fenced
"nere required. IN case there should not ex-
ist. a public road or. roads leading to and per-
hitting access to the reservoirs, where locat-
ed, necessary lands and right of way shall
be acquired and furnished to give such ac-
CONDUIT CAPACITY.
The CARRYING capacity of all riveted steel con-
OUTS VIII be determineG by the Kutter for or
muia, taxing the co-efficlent N to equal .olo
sixteen thousandths) The smallest interior
diameter OF the Shell as constructed shall be
considered to be the diameter of the pipe.
The carrying capacity Of all masonry con-
sdults or turnelsE wilisabe determined by the
kutter formula. taking the co-efficient n 10
equal sOl4 fourteen thousandths) for brick
work, concrete or ashlar masonry lining, and
.OlS eighteen thousandths) for rubble lining.
All such masonry tunnels or conduits shall be
capable of delivering the full supply called for
when discharging with a free upper surface.
me water az, surface not to be higher than one
The head to be used for computing the ca
pacity of the eonduits shall be the difference
between the low water level, or the bottom ele-
walton of the available capacity of the reser-
voir or reservoirs at the points of intake, and
the height or elevation Of delivery at the
points of delivery designated in these specin-
RIGHT OF WAY.
The right of way for conduits shall In no
case be less than forty feet in width, and
shall be sufficient to enable the City in case
of purchase fully to protect the pipe or pipes
laid therein, and to maintain and repair the
same. The right of way shall extend from the
a re ipssIs or or re-, reservoirs ,1Idr at d the point E or po eons
duit shall be constructed on one and the same
side thereof. throughouts and SO as not to
occupy more thereof than is necessary. Where
the City furnishes right of way over lands
which it now owns. the conduits shall be lald
on that part thereof designated by the Engl-
LAYING OF coNDUITs.
The conduits shall be laid in the best and
iOS liOiOuSl all Ou ! " ido
a bed or foundation properly prepared, and
where necessary to procure such foundation on
case be sharper than ten degrees. Cast iron
pipe. with flexible joints or other devices. ac-
ceptable to the Engineer, may be used at
stream crossings, If steel pipe is used where
the stream exceeds % feet in width, 1t must
have a thickness one-quarter of an inch great
er than that required for the same pressure
Where pipes are laid in excavation, the top
of the pipe shall be covered by at least three
n % n q ort and 4ba t,troc Hcho11 he 60 nf0ced
as to bring all the longitudinal seams on Inc
upper quarter of the circumference.
Where the pipe is to be laid across rock
swamp or meadow, it may be above the sur
face of the ground, but must be covered with
satisfactory earth. sand or gravel, SO tnat II
shall everywhere have at least three feet OF
such covering. In all such cases, and on all
embankments, the contractor must SOW grass
seed, or sod, or otherwise protect said en-
bankments. Necessary culverts and other con-
structions must be made to secure the proper
drainage of the adjoining land.
CONNECTIONS.
Where two steel pipes are laid they are to
be connected at proper points and in such
manner that any section of either pipe pc
tween such connections may be shut off and
emptied in order to be cleaned, inspected and
repaired without interfering with the flow OF
water in any any s, Of the other ahesr se p1ana p M WI 6
proper provisions must be made for such con-
nections with a second pipe, 50 that said con
nections can be made without interfering with
the flow of water in the first pipe. Such a
connection shall be made or provided for I'M
mediately below any intake dams, also on the
river bank nearest the intake at each point of
crossing of the Passaic and Hackensack XIV
ers. On the opposite bank at such crossings
a single gate must be placed on each conduit.
Other like connections must also be mace OF
provided for, SO that there shall nowhere pc
a stretch exceeding five miles in length with
out such connections or provision for such a
connection.
Gates or stop valves are to be furnished and
so placed as to divide each pipe into approx
nlately one and %one-half mile sections, and
preferably are to be located on SUBMITS. All
gates are to be iron-bodied, bronze-mounted,
double gates, tested to 300 pounds pressure per
lines by Hanged joints. All such gates or
stop valves and all other fittings used on the
conduits shall be equally capable with the
conduit adjacent thereto to resist any pres
sures or strains to which they may be sub
jected.
the valve stem, shall be composed of eighty
five per cent. copper, ten per cent. tin, and
five per cent. spelter, and shall have a tensile
square inch, with five per cent. elongation in
eight diameters and five per cent. reduction
must be straight and smooth. All face joints
must be plain. true and smooth, 50 as to make
perfectly Esyfe y p waee leag cement }oeHts' valve Waiv stems shall hal
be made of bronze, having a tensile strength
of not less than 10000 pounds per square inch,
and the screw threads thereon shall be cut
accurately to work true and smooth through
out the entire lift of the valve. On the up
offes shall be placed and interI6cked with the
stop valve by proper device, so that the blow
off must be open before the main valve can
be closed.
Every summit on the pipe line shall be
provided with an air valve of the most ap-
proved pattern and of a size properly proper
toned to the duty it has to perform. 1t shall
be provided with a stop valve bolted to a
Hanged casting or forging riveted upon the
top of the pipe. Similar air valves shall also
he placed on each side of every gate. They
shall be properly incased and protected from
possibility Of damage from frost or mischief,
inspection or testing.
BLoW-OFFS.
In, all depressions blow-offs shall be located
for emptying the pipe. They shall be pro-
vided with two s-inen waves noiaed together
1lnon the pipe. Particular care must be taken
to have the foundation for both pipe and blow
An iron pipe shall be provided to carry the
water from the blow-off to a natural water
course or ditch
STEEL PIPE. 7-
The mates used in the construction of the
cord,1its shall in no case be less than one
quarter of an inch in thickness, and the work
ing strain due to the staticzhead of water to
Which they will be subjected shall, under no
circumstances, exceed nine thousand pounds per
square inch section.
The steel for the plates of the conduit shall
ha If lie class called soft and shall be
made by the basic or acid open hearth pro-
cess II by the basic open hearth process the
per cent. of phosphorus and four
one-hundrdeths per cent. of sulphur. If by
the acid open hearth process, the steel shall
cnntain not more than seven and one-half
one-bundredths per cent. of phosphorus and
four one-hundredths per cent. Of sulphur. The
amount Of manganese and carbon to be in
s,,its. The tensile strength of the steel shall
be between the limits of (52, 000) fifty-two thou
sand and esa Roy ,o9oo t a,s'y tess s1 5nSnsand pounds nn :
inches long and IL inches wide between meas