The Cairo bulletin. (Cairo, Ill.) 1???-1928, 1912-09-05
each
Sewer.


sewer, oil tweiveN i2) Inches inside
diameter, shall be laid In the said
Sixth street, six Co feet south of
| the center line of said street, begin
ming at the manhole. located at the
| intersection OF Commercial avenue
and Sixth street. in the CONNER
| eial avenue main sewer, and the
| inside of the bottom Of said sewer
shall begin at an elevation of twelve
and thirty-ive hundredths t12.35)
| feet below the present grade OF said
Sixth street as established by ordi-
| nance CT said City o. Cairo. now on
4! file and of record in the office or the
| city clerk of said City of Cairo, and
from thence the grade OF said sewer
snail rise at the rate Of one I'll foot
| per centum to its western terminus
in a brick manhole to be constructed
| In said Sixth street On the east line
OF Washington avenue, where the
| elevation Of the inside of the bottom
OF said sewer shall be eight go fee.
| below the present grade Of said
Sixth street as established by ordi-
| nance OF the said City Of Cairo now
on file and CT record in the office OF
| the city clerk of the said City of
| Cairo.
Vitr.fied tile pipe "Y" branch
| house connections, of six CD inches
inside diameter. shall be placed in
1 the said sewer on both sides thereof
/ al distances twenty-five feet apart,
between street crossings, one ~ Of
said "Y" branches being located, as
near as possible, in the center of
1 each lot or parcel of land OF the
width of twenty-five t25l feet front
Ing or AUDITING npon the said Sixth
street; said IN" branch house con.
Injections shall be 80 laid that the six
CD inch ~" branch thereof shall
stand about half way between the
vertical and horizontal.
The exact location of all "Y''
branches shall be carefully ascer-
! tanned by the city engineer OF the
! city or some other competent per
son, designated or appointed by the
city council, before the concealment
OF the said branches by back filing,
by accurate measurement from the
| center of the manh0le next below in
the same line OF pipe, so that a true
and exact record may be preserved
for future use; and no "Y" branch
shall be covered or concealed before
its exact location has been noted
and recorded.
I There shall be house connections
in the said Sixth street. one ca
! connection for each and every lot
or space of twenty-five t25l feet
extending from the sewer, herein
provide for, on both sides of the
street. TO line or point ten (10l
feet from the street line They shall
be of six Co inches inside diameter
and shall have q fall or slant at the
rate Of one I'd foot in forty (4Ol
feet from the lot line to the Y con
nections of the sewer and the pipe
the 'efor and the whole manner OF
laying the same and completing the
house connections shall conform in
| all respects, as near as practicable,
to the manner of laying the sewer
pipe of the sewer itself
| Said house connection pipes shall
be securely closed with an earthea
ware cap set in cement mortar. ex-
cept where the lot owner or pro-
prietor desires to connect his house
or drain pipes Herewith at once,
Section 20. The sewer trenches
shall be carefully and evenly exca-
yated and with such slants or in
clinations in the sides thereof as
will leave no risks of caving or fall
ing in and where such risk cannot
otherwise be avoided, proper shor-
ing must be resorted to. To enable
the workmen to do the work to the
best advantage, both as to the mat
4 ter OF securing proper foundation
and for laying the pipe. the bottoms
of the trenches shall be made at
least one Cd foot wider than the
external diameter of the sewer pipe
and wider If found necessary or
best, and they shall be curved OF
shaped to the form and size of the
lower half Of the sewer pipe to be
laid thereon. so that the hubs or
1 bells, as we'll as the body of the pipe
/ may be carefully embedded and have
an even bearing on the bottom o.
i the trenches.
/ Whenever the ground at the bot.
tom of the sewer trench shall not BIZ
found to be sufficiently firm or solid
4 for the laying Of the sewer pine, the
Y same shall he put In proper and
| suitable condition by the contractor
i by the use of such materials as will
(, make safe and permanent founda.
tion for the work,
4 Section 81, The sewer pine
II house connection pipe and inlet pipe
shall be of the best grade and quail.
|, ity Of vitrified tile sewer pipe, salt
lela2ed and free from cracks. flaws
blisters humps or other defects OF
blemishes and shall be of the hui
4 and spigot pattern. Both tho body
| and the bell shall be of double
!, strength and have thickness of moi