Amador ledger., 1907-08-09

Sub. ". The cement mortar shall
be composed of the best quality Of
fresh Portland cement mixed dry with
clean, sharp sand in the proportion
OF one part of cement to two parts
of sand; after being thoroughly mix
ed, water enough to be added to admit
OF stirring. No mortar which has been
standing over one hour to be used.
Sub. %. No lime or lime mortar
allowed in or about the work.
RehlIing.
Sub. "A. After the pipes have been
properly laid the space above the
center of pipes and between them and
the sides shall be filled with fine
earth or sand, both sides being filed
at the same time and carefully lamp
ed with small iron hampers so as not
o jar or disturb the pipe. But no
Filing shall be done until the work
has been inspected and approved by
the proper officer whose duty 1t is to
inspect and improve the same. After
the filling is made as above to a
height of eighteen (lS) inches above
the top Of pipe. the trench may be
filled and settled with water. Ii
water can not be obtained, the filling
shall be filled IN layers of earth and
sand of not more than one foot 10
thickness, spread evenly and tamped
thoroughly on each layer.
Y Branches.
Sub. %. branches only shall be us.
ed for side connections, which shall be
constructed at such places as may be
called for in the work. The openings
in Y branches shall be closed with
terra Gotta covers where they are not
used before Killing the sewer, said Y
branches to be laid and cemented in
the same manner as the main pipes
the covers in branches to have the
joints puttIed with cement mortar on
the outside only. Each Y branch
shall have stake Immediately over
it in the ditch. the stake to be driven
In the side Of the ditch near the sur
face, the stake to be three inch by
four inch redwood, by two feet long.
Manholes.
Sub. 26. Manholes shall be con-
structed along the line of the sewers
at such places as may be designated
in the Order of Work. They shall be
constructed of hard brick laid in
cement mortar. No bats of ill-shaped
bricks to be allowed. The bottom
shall be brick or concrete. The
thickness of the wall shall be eight
inches. The bottom shall be elIiptical
in form, three by four feet in the
clear, drawing to circle at the top
of the BRICK work. Particular care
must be taken in forming the bottom
of manholes to make the curves of
triF 1tary sewers as easy as possible.
The top shall be covered with per-
forated cast-iron cover with dust pan
underneath. The manhole shall con-
form in all respects to the detail
drawing filed with plans.
Sub. 27. Whenever the ground Ia
too soft for the foundation, the man.
hole is t. be laid on two inch red
wood floor, full size of manhole out
side.
Sub. %. Walls of manhole to be
such that a verticle section will show
straight line from the bottom to
the top of the interior surface.
Sub. %. All brick shall be thor
oughly sprinkled with water immedl-
ately before laying and shall be laid
in cement mortar composed of one
part cement to three parts clean,
sharp sand.
Sub. 30. The surfaces of mauholess
shall be plasteTed with cement mortar
one-half inch thick, composed of one
part cement to Gne part clean, sharp
sand. The surface of the walls to be
brushed clean and smooth after apply
ing cement plaster.
Lamp Holes.
Sub. 81. Lamp holes shall be con-
structed by placing an eight inch L
branch vertically in the sewer and
hri II 70 Ln or
face, by adding pipes of the same dla-
laid with the same care as in the
sewer. The top shall be protected by
a suitable cover and the lamp hole
couform to the detailed drawings
furnished with plans.
Flush Tanks.
Sub. 80. Flush tanks shall be con-
structed of hard burned brick care
be water tight. For kind, form, size
and details. see drawings furnished
with plan of work. The water supply
pipe within the flush tank ana ex-
tending through the wall and one foot
outside, together with suitable brass
stop cocks for regulating the water
supply, shall be furnished by the
contractor.
Catch Basins.
Sub. 81. Catch basins shall be con-
structed in all respects in conformity
with the detailed drawings accom-
panying the plan of work and built
in the position designated on plan.
Brick work to be of the same char
acter as that for manholes. If the
ventilating form be used they shall
be constructed to conform in all
respects with the plan designated on
the plan of work.
General Provisions.
Sub. "a. Whenever the word cement
is used in these specifications the best
quality of fresh Portland cement is to
be understood, subject to the appro-
val of the City Engineer and the
Superintendent of Streets. Lnmpy
cement must be rejected.
Sub. 35. All lumber that may be
used in securing a foundation shall
be black heart redwood.
Sub. 81. All rejected material must
be at once removed from the street.
Sub. 81. All water and gas pipes to
be properly supported where crossing
or lying along the trench.
Sub. IS. All work done and material
furnished to be under the direction
of and satisfactory to the Superinten-
dent of Streets and the City Engineer
of the city Of jackson, in their re-
spective capacities.
Sub. 80. All work is to be done in
a skillful and workmanlike, manner,
and IN strict accordance with the true
intent and meaning of the specihca
lions; and such additional speoi6ca