The Cairo bulletin., 1912-09-09

j igutter- flags of said combined sscurh
and gutter so extended around Sand
out TO the lot line on both sides of
said Holbrook avenue at all unpaved
intersecting streets, aud aioHB 81 the
avenue line, natural limestone mar
ginal curves, six CD inches thick
and twelve (l2) inches wide, or
deep, shall be set, on natural earth
foundation, between the pave
menf aud natural earth, and
be well supported, on the outer sides,
with natural earth, well tamped,
and said limestone curling shall be
so set and placed as to be fiusA with
and support the brick pavement;
which at allwunpaved street inter-.
sections is to extend across the Aen-
tire width of said avenue.
/ Section g. All eurbing shall be
iset and finished complete before the
compilation of grading, so that the
lsaid curbing. may be used as a guide
In completing the finished sub grade,
and TO complete the said sub grade,
a template or other proper means
must be used by the contractor: and
latter the grading Is once completed
and finally and thoroughly rolled
Throughout, the street shall be well
land securely blocked off SO as to pre-
Except those containing materials
for the work. and in that case the
Isurface or sub-srade shall be secure
lly protected by planks, a,sp,,
7 Section Z. The top of the gutter
mag shall be continuation Of the
Icurve or arc OF the top surface of
the finished pavement. The combi-
nation curb and gutter shall be con-
Istructed with Joints eight (S) feet
APART in the following described
manner: Said concrete IL to be pre-
Ipased from washed. river gravel,
sand and Portland cement and shall
first course shall be the bottom
Ieourse aud shall be five t5) inches
in depth, and shah he laid on eigh,
tt8J inches OF clean cinders thor
torn to the outline OF the form for
1.-THE cont ined curb and gutter. The
lsecona course shall be the finishing
loi wearing course or surface and the
fsame shall be one III inch In depth.
| The bottom course shall be CONF
posed OF one ID part OF Portland
tcemenr and five t5l parts of wash
led, river gravel of sizes ranging
from rayel of two t2) inches In
diameter down to coarse sand, and
1.-The same shall be graded so that the
gravel and sand shall not contai.
more. than twenty COO per cent
yods, and the same shall be entire
lly free from mud, dirt, dust and
loan The gravel and cement used II
constructing this bottom course shall
FIRST be thoroughly mixed dry ans
Sufficient clean water shall then be
added by slowly sprInkling to give
the mixture the proper consistency
and the whole shall be constantly
lstlrred until the same IL thoroughly
mixed.
This mass shall be spread in forms
upon the cinder foundation and shall
be rammed until all interstiees are
Thoroughly filled with the mortar
particular care being taken that tht'
bottom course is well rammed and
consolidated along the outer edges.
| After this bottom course Is com
lpleted and before 1t has had time to
Ibegin to set. the finishing or wear
ling course shall be added The fin
fishing course shall consist Of stiff
mortar, composed OF one "a part Of
Portland cement and one and one
half (Iih ] parts of clean, sharp.
coarse sand. and shall be laid to the
depth of one ID linen and shall be
carefully smoothed to an even sur
face, which. after the first setting
takes place. must not be disturbed
by additional rubbing }t
The curb and gutter shall be pro-
tected from the sun and wind for
twenty four l24) hours after tne
completion, during which time 1t
81 all be kept moist by sprinkling.
'fhs tops or upper edges OF the
said curbing on both sides of said
pavement shall be, when finished
complete, throughout its entire
length. one inch below the grade
hereinafter specified for the center
line of the said brick pavement
when the same has been completed
Concrete Foundation.
Section 8. Upon The said sub
grade and firm earth surface so pre-.
pared and shaped as aforesaid, shall
be laid or spread a foundation Of
Portland cement concrete, Of the
uniform thickness Of five t5) In.
ches, composed Of one fl) part Of
Portland cement and eight fsl parts
of washed, river gravel Of sizes rang
ling from gravel OF two t2) inches
In diameter down to coarse sand, and
the same shall be graded so that
tho gravel and sand shall not con-
tain more than twenty t20) per
cent yoids, and the same shall b.
entirely free from mud, dirt, dust
and loan and shall be screened when