The Cairo bulletin., 1909-07-26

ed by the city engineer OF the city. or
some other competent person, desIg-
mated or appointed by the city counci!.
before the conceaiment OF the said
branches by back filing. by accurate
measurement from the center Of the
manhole next below in the same line
of pipe, so that true and exact rec
ord may be preserved for future uge:
and no Y branch shall be covered or
concealed before its exact location
has been noted and recorded
| Section %. The sewer trench shall
be carefully filled rammed and tamp-
ed in uniform layers OF suitable earth
or other suitable materials Of not ex-
ceeding twelve (12) inches in thick
ness; and in doing the back filling
care must be taken to fill in and conn
pact the earth around the body of the
sewer pipe before beginning with ths
twelve Q2) inch layers. which are to
be rammed and tamped, in the doing
of which neither the sewer pipe nor
the line of the sewer must be In any.
wise injured or disturbed; and the
street surface above the sewer shall
he made firm and solid and altogeth-
ler suitable to receive street paving
whenever the same shall be ordered.
Section "a. The work shall be car
ried on and fplly completed in sectors
of not exceeding two hundred t20U
fleet at a time and the back filling
|must be finished complete up to with
in one hundred Q00l feet of the com,
lpleted pipe laying; and II any part or
lsection Is left uncompleted 1t shall be
carefully and fully protected by prop,
Ter barriers and at night time also by
suitable red lights.
Manho.es.
Section 25. Three (3) brick man
lholes shall be constructed In said
Walnut street, in the line of the said
new sewer herein provided for, and
one "a of said manaoles shall be To-
Gated at each of the street intersec-
ions of Eighteenth street, Nineteenth
street and Twentieth street with said
Walnut street, and they shall be cylin-
drical in shape
All of said manholes shall be built
to the grade of the said streets In
which they are constructed, and the
bottoms thereof shall be on a level
with the bottom of the sewer inside.
All of the said manholes shall be con
structed as follows: The walls OF
the same shall consist Of two (2l
courses of hard burned brick laid fiat
and in cement mortar, composed OF
one (l) part OF Portland cement and
three go parts of clean sand. They
shall be of four ca feet diameter az
the bottom and decrease or taper to
two (2) feet diameter at the top and
be built on foundations OF two (2b
courses of hard burned sewer brick.
laid in the same kind of mortar, aud
the bottoms and inside walls shall
n plastered with the same kind OF
NOR ar aud to the thickness OF at
least onChalf (h) an inch. In the bot
toms of the manholes shall be suit
able flow channel., troweled smooth.
and conforming accurately TO the
grade and circle or the sewer pipe:
and In each Of them there shall
he placed three-quarter tA) inch
wrought iron steps firmly embedded
in the walls thereof. and spaced
twelve t12) inches center to center.
They shall be provided with cast iron
rings and perforated covers or lids OF
not less than three hundred and fifty
(350) pounds combined weight each.
| The height of the said manholes
| shall be such that the tops OF the
iron covers thereof snail be on level
with the grade of the streets in which
| they are constructed
House Connections.
Section 90. There shall he house
connections in the said Walnut street.
one U) connection for each and
every lot or space OF twenty-five (25)
feet extending from the sewer.
herein provided for on both sides OF
the street, TO line or point ten (l0)
feet from the lot line. They shall be
Of six 90 inches isslde diameter and
shall have a fall or slant at the rate
Of one % foot in forty (40) feet from
the lot line to the connections Of
the sewer and the pipe therefor 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.
Section 81 Care must be taken to
remove fully and completely all sur.
plus or projections of cement whi h
may remain after the joints are
fitted; and no sewer. house connsc-
tions or inlet or part OF sewer shat
he left or offered to be turned over
by the contractors as complete. until
all rubbish of every kind and de-
Scription shall have been fully re
moved therefrom by h'n: and all
lead ends of sewers or other pipes,
shall be carefully closed BY him with
aarthenware caps or with brick and
mortar. so as to exclude all running
sand and other materials Of every