The Cairo bulletin., 1912-12-02


reception thereon; Of the said con-
crete base hereinbefore referred to
Concrete Base.
| a foundation base shnE ba built.
! eight IS, inches in deptI apo seven
and one-half (7'5> teet IN aidth, ia
the bottom OF said sewer trench az
each Of the points whe~e the said
breaks haze occurred In the said
main caacrote sewer IN said &ommer-
eial avenue. ill the sale vicinity of
/, tae said Thirteenth atreeJ pd Com
mercial aYonue and the 81 Il Four
{centh street and Commercial avenue.
in said CITY Of cairo, and 50 It fouu-
!, dation base. shall extend the entire
'jaustl Of each OF said bcea1s in the
aid main, concrete sewcr IN saif
Crninercial aveGic tn The "" nifty OF
SAT- Thirteenth sheet aud CONNER
eial o,enua and OF saia Fourteenth
street and G0umrcial avenue, the
length of the said foundation base in
he SRlU I U@lNEtii IN StlfFt UltHh VI
said main concrete sewer in said
Commercial avenue being approXi-
matcly one hundred and fftv-niue
tIa9l lIReal Tex /, esa THE length of
the said foundation base in the said
Fourteenth street hreaF of said main
concrete sewer in said Commercial
avenue being approximately two
hundred and seventy-four (27D
lineai feet. " "@
Said foundation base shall he built
Of 2 concrete, mixture composed of
ore (n part of American Portland
cement and four t4) parts of clean,
washed river gravel, in which shall
be Undecided round, deformed. steel
rods both longitudinally and trans
versely. Said round, deformcd, steel
rods shall be such that the least
cross. sectional area thereof shall be
equal to that OF round bar of the
required size, and shall develop an
ultimate adhesive or mechanical
bond Of three hundred (300) pounds
per square inch of surface. The
steel used In said rods shall have an
elastic limit of from thirty-tive
thousand (35, o00) to fifty thousand
| $50, 0l01 pounds per square inch.
The steel In said rods shall be OF
such a nature that the rods can be
bent cold one hundred and eighty
IS0) degrees around pin of the
diameter Of twice the thickness of
the rod without causing fracture
on the outside of the bend. AT all
intersections and laps the said rods
shall be wired together with No, Is
black wire. Said Longitudinal rods
shall be tive-eights t5-S) Of an inch
in diameter and shall be imbedded In
the said concrete six (Gl inches from
the top thereof, and the same shall
be spaced (t2l inches from center to
center Said transverse rods shalt
be thrce-eights $3.50 of an inch in
diameter and shall be Embedded in
the SAID concrete six 60 inches from
the top thereof. and the same shall be
spaced twelve (12l inches from CEN
ter to telter: .9.t.
The elevation Of the top surface of
said foundation base shall be equal
I'm elevation to the elevation of the
surface Of The outside bottom of the
two ends of the said old main con-
crete sewer in said Commercial
avenue against which said founda.
ton base abrts. ..
Concrete Sewer.
Section 8. A concrete sewer shall
be built at each of the points where
the said breaks have occurred in the
said main concrete sewer in said
Commercial avenue, in the said vicin-
lily of the said Thirteenth street and
Commercial avenue and the said
rcu~'eenth street and Commercial
avenue, In said City OF Cairo, and
said toaerete sewer shall extend the
entire length, of each of said breaks
II. the said main concrete sewer In
said Commercial avenue, in the said
vicinity Of said Thirteenth street and
Commercial avenue and of said Four
teenrh street and Commercial avenue,
the Length of the said concrete sewer
in the said Thirteenth street break OF
said main concrete sewer in said
lCommprciah avenue being apprpxi-
lmately ono hundred and tifty-ntne
(t59l lneal feet, and the length of
the said concrete sewer in the said
Fourteenth street break OF said main
concrete sewer in said Commercial
avenue heipg, Approximately two hum
drea and seyenty-tour t27D lineal
feet.j7 sat-,
Said concrete sewer shall be built
OF ronsrete mixture composed OF
lone C1l part of American Portland
cement and four CAD parts OF clean,
washed river gravel, Ia which shall
| be inIbedded round, deformed, steel
4, i.ot lon ctt,, Il,y nd trap