The Rock Island Argus and daily union. (Rock Island, Ill.) 1920-1923, 1920-04-17

line OF Seventh 9TH street, eleva-
don 2e.0o feet.
One in the Ninth (sth) street
street storm sewer one thousand
two hundred fifty-seven (1,257D feet
from the north line of
Fifteenth t15th) avenue, elevation.
$500 feet. IL
One in the Ninth f9th) street
storm sewer nine hundred seventy
seven t977D feet northerly from the
north line of Fifteenth t15th) ave-
nue., elevation $500 feet.
One in the Ninth t9th) street
storm sewer six hundred fifty-sey-
en- $3.50 feet northerly from the
north line of Fifteenth (l5th) ave-
nue., elevation $500 feet.
One in the Ninth 18th street
storm sewer five hundred twenty
seven (527) feet northerly from the
north line of Fifteenth (15tE) ave-
nue., elevation $500 feet.
One in the Ninth 9TH street
storm sewer two hundred sixty
t260) feet northerly from the north
line of Fifteenth (15th) avenue, ele-
walton $500 feet.
One in the Ninth 9th street
storm sewer one hundred five (1eD
feet north of the north line Of Fiji
teenth (15th) avenue, elevation
$500 feet.
All of said distance for manholes
on the Ninth (9thD street storm
sewer branch being measured along
the said Ninth (9th) street storm
sewer line.
One in the storm sewer in Second
end street. five (5) feet south Of
the line Of Eleventh (11thl avenue,
elevation 32,5 feet.
One in the storm sewer in Second
t2nd) street three hundred twenty
t32O feet north of the south line
of Eleventh (11th) avenue, eleva-
ton $500 feet.
One in the storm sewer in Sec
ond t2nd) street six hundred forty
five t645) feet north of the north
line of Eleventh l1th) avenue, ele-
walton 264 feet.
One in the storm sewer in Second
end street at the south line OF the
alley in blocks 1872 and 1863, eleva-
ton 5000 feet.
One in the storm sewer in Sec
ond (2nd) street at the north line
of Fifteenth 15th) avenue, eleva-
toin $500 feet.
One in the storm sewer in Second
t2nd) street ten t10) feet north
of the north line of Sixteenth 16th)
avenue, elevation 1870 feet.
One in the storm sewer in Second
end street fifteen t15) feet south
of the north line Of Seventeenth
Q7th) avenue, elevation $500 feet
One in the storm sewer through
said block 1856, forty (40) feet east
of the east line of Second (2nd)
street, elevation $500 feet.
One in the storm sewer in Eigh.
teenth 1Sth) avenue five (5D feet
east Of the east line of Third l3rd)
street, elevation $500 feet
One in the storm sewer in Eigh-
teenth 1Sth) avenue two hundred
forty t240) feet east of the east line
of Third )3rd) street, elevation 53.3
feet.
One in the storm sewer in Eigh-
tenth lSthl avenue two hundred
sixty-eight tz6Sl feet west of the
pF
elevation So feet.
One in the storm sewer in Eigh-
teenth l1Sth) avenue 161a feet east
of the west line of Fourth street,
elevation $500 feet.
/ One in the storm sewer in Eigh-
tenth ISth) avenue two hundred
twenty-five t225) feet east of the
east line of Fourth t4th) street,
elevation 504 feet.
One inHthe storm sewer in Eigh
teenth GSth. avenue eighty 800
fet west of the west line of Fifth
9th street, elevation SCI feet
One in the storm sewer in Eigh-
tenth uSth) avenue at the begin
ming of the "a inch segment block
storm sewer as hereinbefore locat-
ed in this ordinance, elevation 54.4
| feet.
SECTION Y.
All concrete monholes mentioned
in this ordinance are to be con-
structed as follows:
The manholes shall be circular
section OF two o. feet internal dia-
meter from the bottom up 10 the
Top of the same. The walls of said
manholes shall be six 60 inches
thick, made of concrete consisting
of one "a part Portland cement,
one and one-half ll2) parts sand
and three t3) parts gravel. Said
concrete manholes shall be of an
average height of 2.S feet above the
storm sewer structure and the CEN
ter of the manholes shall be direct
ly over the center line OF the sewer
at which point the manholes are to
be constructed. A tee branch with
a two % foot circular opening
shall be placed in the segment block
sewer at each point where manholes
are to be constructed, the tee
branch being on the top surface Of
the sewer and the center of the tee
branch being the center Of the man
hole at said point. Said manholes
shall be built directly upon the top
surface Of the sewers at at which
point they are to be constructed
and the bottom of the walls Of said
manholes shall come in contact
| with the surface of the sewer at
all points.
The forms used in the construc-
ton of said manholes shall be in
two 60 parts, that is, an inner part
and an outer part. The tagging
for said forms shall consist of the
same quality and kind of material
as that hereinafter described in this
ordinance for the forms to be used
in the construction of wingwalls
and header walls and shall be Sc
curely fastened together to prevent
said forms from spreading when