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

block 1856 extended eastsrly and
ave (5) feet east Of the east line
Of said Third terdD street extend
ed southerly. 42.S3 feet.
At a point ninety tso) feet south
erly from said last mentioned point.
said ninety 1907 feet being meas
ured along the center line OF said
thirty-six 1867 inch sewer. as here
inbefore located from said last
above mentioned point southerly,
50.2 feet.
At point "B" IS hereinbefore To-
Gated, $50 feet.
With q uniform grade between
said points a. hereinbefore fixed.
The elevation Of the fow line Of
the First (1st) street branch storm
sewer. as hereinbefore described.
shall be as follows:
At a point ten tl0) feet west of
the east line of First Qstl street
and thirty-five (35) feet north Of
the north line Of Eleventh (11th)
avenue, 1859 feet.
At a point 4s2 feet south of said
last hereinbefore described point
and ten (10) feet west Of the east
line Of First (1stl street, said 1872
feet being measured along the CEN
ter line Of said sewer from said
last mentioned point southerly,
1914 feet.
At q point 20S feet south of said
last hereinbefore described point
and ten Q0) feet west of the east
line of First (1st) street, 24.22 feet.
With q uniform grade between
said points as hereinbefore fixed.
The grade of the how line BE-
tween the wingwalls at the upper
end Of each of the hereinbef0re de-
scribed storm sewers on Third
(3rd) street and Sixth t6th) street,
shall be in the same right line as
the grade of the flow line Of the
adjacent storm sewers Immediately
below said wingwalls.
The grade of the fow line be-
tween the wingwalls at the lower
end of the hereinbefore described
storm sewer on First (1st) street
shall be in the same right line Of
the how line Of the adjacent storm
sewer Immediately above said
wingwall.
The grade of the flow line of the
concrete storm sewer beginning at
point B." as hereinbefore located
shall be in the same right line as
the grade of the flow line of the
segment block storm sewer imme-
diately below said concrete storm
sewer.
! The grade of the fow line OF the
concrete storm sewer beginning at
point &c" as hereinbefore located
shall be in the some right line
as the grade of the flow line of the
segment block storm sewer immedi-
lately below said concrete storm
sewer.
| The grade of the concrete storm
sewers hereinbefore mentioned
connecting the segment block storm
sewers shall be the same grade as
the segment block sewerssat said
points of connection as grades are
hereinbefore fixed and with a uni
form grade between said points.
All elevations herein given are
figured from city datum plane fixel
by an ordinance passed by the cit,
council of the city of East Moline
, Illinois, September 9Th, A. d. 1911
Said datum plane was established
at that time as follows: That thu
| top of an iron bolt set in a con
. crete monument just north of tn
south line OF First tlst) avenu
tnow Fifteenth l5th) avenue) be
F tween Tenth (11th) and Eleventh
l1th) streets in the city of Eas
F Moline, Illinois. near the northeas
+ corner of the city Jail was thereb.
fixed and established as 3195 fee
above the zero or said datum plane
which bolt was used to reckon o.
figure al Elevations all herein giver
in this ordinance
SECTION ".
There shall be in and along tn,
lines of said storm sewer thirty
seven $50 manholes. the location
and elevation of which are as FOL
lows:
One in the S. inch storm sewer
on First t1stl street, s. feet north
of the north line of Eleventh tl1th
avenue, elevation $500 feet.
One in the Eleventh l1thD ave,
nue. storm sewer. thirty 500 fee,
east of the extension of the cas-
line of First (1st) street, elevation
$500 feet.
/ One in the Eleventh t11th) ave.
nue. storm sewer three hundred
eighty (3S0) feet east of the east
line Of First t1st) street, elevation
$500 feet.
One in the Eleventh 1lth) ave.
nue. storm sewer fourteen u4 feet
west of the west line of Second
, (2nd) street, elevation $500 feet.
One In the Eleventh 11th) ave
. nue. storm sewer one hundred fort,
140) feet west of the extension o.
1.-THE west line of Second t2nd) street
elevation $500 feet.
One in the Eleventh 1lth) ave
nue. storm sewer two hundred sixt!
; (26O) feet east of the extension O
, the east line of Second end street
elevation $500 feet.
One in the Eleventh l11th) ave
. nue. storm sewer FIVE hundre<
eighty $500 feet east of the exten
sion of the east line of Second end
. street, elevation $500 feet.
One in the Eleventh (l1th) ave
! niue storm sewer nine hundre,
5000 feet east of the east line O
Second (2nd) street, elevation ESQ
, feet
One in the Eleventh (l1th) ave
nue. storm sewer twenty (20) fee
west Of the extension Of the ives
} line of Fourth 9TH street, elevatio
, $500 feet.
One in the Eleventh (11th) ave