The Cairo bulletin., 1908-09-05

On Highland Avenue:
The Sewer shall extend from a
manhole in the ThlrtyFifth street
lsewer along line six Co feet
west of the center line of said
Highland avenue to the south
line Of West Thirtt-seventh street.
It's diameter shall be twelve 02)
inches throughout its entire length.
It's depth below grade at the place of
beginning shall be 4.95 feet, and it
shall rise at 80 of a foot in roo feet
to a manhoe in Thirty-SiXth street
sewer, where its depth shall be 4.l6
feet below grade; from thence and
starting at the depth of 4i2 feet b.,
low grade. it shall rise at the rate of
so Of a foot in 100 feet TO the south
line of West Thirty-Seventh street.
where it's depth below grade shall be
@.75 feet
Section 3 The sewer trenches
shall be carefully and evenly exca-
waited and with such slants or in
clinations in the sides thereof as will
leave no risk Of caying or falling in
and where such risk cannot other
wise be avoided, proper Snoring must
be resorted to. TO enable the work
men to do the work TO the best adj
vartage. both as to the matter of Sc
curing a proper foundation and for
LAYING the pipe. the bottoms of the
trenches shah be made at least one
IN foot wider than the external
dlameter of the sewer pipe and wider
if found necessary or best and they
shall be curved or shaped to the form
and size of the lower half of the
sewer pipe to be laid thereon, so that
the hubs or bells as well as the body
Of the piue may be carefully EN-
bedded and have an even bearing on
the bottom of the trenches.
Whenever the ground, at the bot
tom of the sewer trench, shall not b.
found to be sufficiently firm or solid
for the LAYING of the sewer pipe, the
sanic shall be put in proper and suit
able condition by the contractor by
the use of such materials rs will
make a safe and permanent founda.
tiol for the work.
Section A. The sewer pipe. house
connection pipe and inlet pipe shall he
of the best grade and quality Of vitri
fed tile sewer pipe, salt glazed and
free from cracks, flaws. blisters.
Jumps or other defects or blemishes
ana shall be of the hub and srigot pa
TEN. Both the body and the bell shall
be- e. double strength and have a
thickness OF not less than one-twelfth
O-12l of the internal diameter OF the
pine and the Joint connections of the
pipe shall be fitted tight and close
ana laid IN the best quality of Port
Haul cement mortar composed Of one
% Fart of cement and one Gl part Of
clean sand with only enough water 10
give consistency 10 the mortar which
shaV be used as soon as made. and
before lowering the joints or pieces Of
pi"o into the trenches thev shall be
carefully examined and inspected and
those not meeting the foregoing re-
quircments shall be rejected and
moved from the work The pipes
shall be 50 laid IN the trenches that
latter tho sewer is COMPLETED. the in
terror surface thereof shall conform
accurately TO the grade herein given
FOR the laying of the sewer AMI an al
iustments to line and grade Of pipe
laid directly upon the bottom Of the
o IL L. fVtr
'axay or filing in with earth and com
racfing the same under the bods o.
The r;pc and not by blocking or wedg-
ing up. Before LAYING the interior of
the acll shall be carefully wipei
smJcth and clean aud the annular
space shall be free from dirt or NOR
tar A narrow gasket Of packing shall
Do property calked into each ioint
af.sr which Portland cement mortar
cowucsed Of one % part Of cement
and rna % part Of clean sand. shall
- introduced therein and such gas
kef SHALL be- Of one piece Of sufficient
leacti 10 reach entirely around the
pi1e and 0f sufficient thickness 70
hrire the bottoms Of the two pines 70
thu same level No Joint shall D. CO
merte1 until the gssket Of the next
tw-. ioints in advance are uronerlv In
sertCI Special care must BE- taken 70
6H with mortar the aunular snare a.
ths bottoms and sides as vol as ~
fhe trus If the joints. After such
s~acr has been filled fhe cement hav-
ing bon cOmuacted with p Woodfu Or
iron ralkine tool neat finish shah
b. Given n the Joint By the further
.aur 'ie9tion n similar mortar 70 the.
fac &C. she hrbs. so as 10 form ron
.ti-rrrs aui even beveled surface from
th= exterior Of the hub 70 the exterior
~ tie spieat ali around. - soon As.
the cement Of any joint has been corn-
psc3ed. the bel hole under the heb