The Cairo bulletin., 1907-05-22


east line of Park avenue, except ths
! In crossing Walnut street II shall b
!. laid along q line ten t10) feet eas
! Of the center line OF walnut stree
, IT. diameter from Park avenue t
!. Holbrook avenue shall be twelve az
, inches. from Holbrook avenue I
. Washington avenue fifteen tl5
, inches and from Washington avenu
!, to the Commercial avenue mali
sewer twenty (20) inches It's deptl
, at tire place of beginning in Park ave
/, lnue shall be SIS feet below the grade
, at that point and 1t shall fall at the
, rate Of rs huudredths OF foot, in one
, hundred feet, 70 It's terminus in Com
mercial avenue where its depth be
low The grade at that point shall be
ll,55 feet.
on Charles and Walnut Streets.
The sewer shall extend from pro-
posed manhole in the Twenty seventh
street sewer herein provided for, on
the east line OF Washington avenue,
TO point forty-six t46) feet
west of the east line OF Park
avenue, along a line six (6l
feet south Of the center line OF
said Charles street. except that in
crossing Walnut street it shall extend
along a line ten (10l feet east of the
center line Of Walnut street. Its diam
leter from Fark avenue to Holbrook
avenue shall be twelve (1a) inches.
and from Holbrook avenue ID its term
mus at the east Inns Of Washington
avenue fifteen (l5l inches. Its depth
below the grade at the place of begin
ming In Park avenue shall be 4 " feeE
and il shall fall at the rats OF 80 hun
dredths of foot, in one hundred fee.
to its terminus AT the east line af
Washington avenue. where its depth |
below the grade shall be 9.S1 feet
Section 2 The sewer trenches /
shall be carefully and evenly exca
waited and VIII such slants or II
clina ions in the sides Their of as viii
leave no risk Of Gazing or falling ii
and where such risk cannot Other
wise be avoided. proper snoring must
pc resorsea to Ton enable the work
men TO do the work to tbs best all
1antage, both ais to the matter Of Sc
curing q proper foundation and for
aging the pipe, the bottoms Of TIE
renches shall be made al least nc ]
M foot wider than the ext rnal
Iiameter Of the sewer ppe and wider
{ found necessary or hest. and they
hall be curved on shared to the form
nd size Of the low half of the
ever pipe to be laid thereon. So ihai
he hubs or bells as we'll as the body
t the pipe may be carefully embei
ed and have an even bearing on the
ottom cf the trenches.
Whenever the ground. al the bot.
1m Of the sewer trench, shall not be-
,und to be sufficiently firm or solid
II the laying of the sewsr pipe, the
anne shall be put in proper and sulta,
he condition hy the contractor hy thefa
SC OF such materials.as win make d
afe and permanent foundation for
10 work.
sectiua .. The sewer pin house
pipe ami inlet pire shaiiop
z Of the best grade ana quality of
trifl 10 sewer pine, aalt
a1ed ard free from cracks
avs blisters, Jumps OF othcr Is q
cts Or bIemIshea. and shall be- n
he hub and spigot pattern Both ! !
,e body and the Tell shall hc If !
)uble strength and have thickness
MT l7ss tlan onetwelfih G-12I Of ?
le Internal II ameter Of the pipe and Y
,e joint connections of the pipe shall z
E fitted tigat and close and laid In p
le best quality of Portland cement !,
.ortar composed Of on (l9 part ef
emeat and one % part OF clean =
md with only enough water to give
nsistenGy 10 the mortar which shall Z
9 used as soon as made ana before =
wing the joints or pieces of pipe :,
to the trenches. they shall he care =
lily examined and inspected and J.
los not meeting the foregoing re I
1irements shall be rejected and re
loeed from the work. The pipes
nah be 50 laid In the trenches that
fter the sewer Is completed. the In !
arior surface thereof shall conform
10 the grade herein given
" the laying Of the sewer. and all
diustmcnts to line aud grade II pipa.
I'D directly upon the bottom of the
rench must be done by scraping
way or tlllng In with earth aud com
acting the same under the body of
ne pipe and not by blocking or
cdgng up Before laying. the inter
lr Of the bell shall lbe carefully :
iped smooth and clean ard the an. I
nlar space shall be free from dirt or I
crtar A narrow gaske Of packing I
hall be properly calked into each 7
lint. after which Portland cement :
ortar composed of one 90 part of :
sment and one % part of clean
md. saail be introduced therein. and q
len gasket shall be of one piece of y
Efficient length to reach entirely I"
-ound tie pipe and of sufficient o
Iickness 10 bring the bottoms of the g
70 pipes to The same level No joint "
iall be cemented until the gasket 8
the upvf furo fofssfg T.. a-ft.,co ~