The Cairo bulletin., 1906-07-14

tieth street to the north line of Sec
ond street, shall be constructed a sec
ond or auxiliary sewer of yitritied tile
sewer pipe, of eight go inches inter
nal diameter, which shall extend to
and connect with the outlet from each
inlet at the end of the block with an
eight go inch Y branch junction. In
said second or auxiliary sewer shall be
placed one six 60 inch Y branch june
ton for house connection purposes OPP
poste each twenty-five $3.50 feet of
land Said Y branch functions for
house connections and also the house
connection pipes in the last paragraph
mentioned shall be located as near the
center of each twenty-five (25) feet
of land as is possible. Said auxiliary
sewers at their place Of beginning
shall be laid at depth of six tG)
feet below the street grade and shall
fall from north to south at the rate u
one "a foot in every one hundred
ion with the inlet connection pipe,
between said Thirtyfourth and Tenth
streets on said Commercial avenue,
land from south to north between said
Second and Tenth streets on said
Commercial avenue.
Paragraph 30 Street connections for
sub-main and lateral sewers shall he
placed on the west side of the sewer:
in said avenue at each intersecting
and abuttng street as follows; at
| Thirty eighth, Thirtyfourth to TWEEN
ty-ninth. both inclusive, Twenty-seV-
enth to Seventeenth, both inclusive,
Fifteenth, Thirteenth, Twelfth and
Tenth to Second, both inclusive. Said
connections shall be constructed of
ytpified tile sewer pipe and the inter
nal diameter Of the same, on the west
side of the sewers, shall be eighteen
/ (1S) inches and on the east side
Of said sewers shall be twelve 12)
incaes and on the said east side
the said connections shall be placed at
he following intersectng streets:
Thirty-eiehth, Thirty fourth. Thirty
lsecond. Thirtieth, Twenty-siXth, Tween,
ty-seeond, Twentieth Eighteenth, Four
teenth, Twelfth. Eighth. SIKH. Fourth
and Second The bottom of the inside
of each Of the said street connection
shall be at an elevation above tire bot.
tom of the inside Of the sewer in
4 which the same is paced equal to
one eighth % of the internal diane
ter of the said sewer. Said street con.
INJECTIONS shall consist OF one length
of yitrifiad sewer pipe two and one
half (21a) feet in length.
Paragraph 81 The yiirfied tile
pipe to be used in and throughout the
work shall be of the best quality of
salt-glazed vitrilied clay sewes pipe
Of he hub and spigot pattern. Both
body and bell shah have thickness
of not less than one-twelfth U-12) of
the internal diameter Of the pipe. Al
pine and specials shall be sound and
well burned with a clear ring. and
well glazed and smooth on the inside
and free from Jumps. cracks. blisters,
flakes or other imperfeotions: aud
the joint connections of said pipe and
also of said specials shall be laid in
the best quality of Portland cement
mortar. composed of one %
part of cement and one GD part
iof sand The upper end of all
house connections. Y branch functions
and the end of all auxiliary sewers
and the upper end of all street con
nections shall be securely sealed with
an earthenware cap set in cement
mortar
/ Paragraph 30. Before being lower
ed into the trench each pipe shall be
carefully inspected and those not
meeting the foregoing Specifications
shall be rejected and removed from
the work. All Jumps or excresences
on the ends of each pipe shall be re
moved before being lowered into the
trench. The pipe and specials shall
he so laid in the trench that after the
sewer is completed the interior sur
face thereof shall conform accurately
10 the grades and alinements fixed
and given by the City Engineer Of
said City of Cairo and shown on the
plans. All adjustment TO line and
grade Of pipe laid directly upon the
bottom must be done by scraping
away or filling in with earth under the
body Of the pipe and not by blocking
or wedging mp. Before laying. the in
iterior Of the bell shall be carefully
wiped smooth ard clean and the annu-
lar space shall be free from dirt or
water. A narrow gasket Of packing
hall be properly cslked into each
] Joint after which cement mortar
composed Of one part Of cement and
one part Of sand. shall De introduced
I therein. and such gasket shall be of
one piece Of sufficient length 10 reach
entirely around the pipe and Of a
thickness suHiclent 10 bring the bot
toms Of The two pipes 10 The same
level. No joints shall he cemented
iuntH the sasl5et Of the next two joints
in advance are properly inserted.
Special care must be taken 10 I'll with
mortar the annular space at the bot
itoms and sides as well as az the ton