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Response to Information Request 10-6-2025 Overland Flow Assessment · OPW25/0042
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REV
DATE
LINE
900 x 900
900 x 600
600 x 600
450 x 450
INTERNAL
NAME
LEVEL
DIMENSIONS
(Cumecs)
RUNNING
OF DRAIN
CHAINAGE
PIPE FLOW
HYDRAULIC
STRUCTURE
STRUCTURE
DESCRIPTION
GRADE LEVEL
< 600
INVERT LEVEL
>1200
PIPE GRADE %
COORDINATES
DEPTH
DESCRIPTION
MAXIMUM DEPTHS
(Easting/Northing))
MAXIMUM
PIPE SLOPE 1 in X
DESIGN SURFACE
> 600 <900
DEPTH TO INVERT
>900 <1200
PIPE SIZEmm (Class)
STRUCTURE SETOUT
ALL LIDS/GRATES TO
BE BOLT DOWN TYPE
FULL PIPE FLOW VEL. (m/s)
PART FULL FLOW VEL. (m/s)
0.000 E= 8405.398 18.800 18.829 EXISTING 600sq GRATED PIT 1/1
BY
N= 80584.236 17.060 1.740 18.822 WITH CONCRETE APRON
5.673
0.18
600(2)
0.052
141.83
0.71%
CHKD
5.673 E= 8409.345 18.300 17.020 1.280 18.822 1500x1500 PIT WITH RAISED 2/1
DATUM RL 1.0
N= 80580.161 17.000 1.300 18.140 BOLT DOWN CLASS 'D' GRATE
1.95
600(2)
28.932
0.570
29.12
3.43%
34.605 E= 8415.709 17.250 16.006 1.244 17.911 900x900 PIT IMPERVIOUS 3/1
N= 80551.938 15.986 1.264 17.636 BOLT DOWN LID
RPEQ - 4784
1.95
600(2)
0.570
35.786
106.95
0.93%
4/1
STEVEN HARRISON
DIRECTOR APPROVAL
70.391 E= 8390.876 17.070 15.652 1.418 17.353 1800dia x 2400d RAPID INFILTRATION PIT
NOT FOR CONSTRUCTION
N= 80526.171 15.651 1.419 17.022 WITH 900x900 CLASS 'B' GRATE
.......................
FOR APPROVAL
EXISTING SURFACE
2.63
600(2)
0.770
40.363
106.95
0.94%
DESIGN SURFACE
NOTE: ONLY DRAWINGS MARKED "FOR CONSTRUCTION" AND BEARING AN ORIGINAL SIGNATURE SHALL BE USED FOR CONSTRUCTION Design:
4A/1
PURPOSES.
110.754 E= 8362.912 16.850 15.273 1.577 16.440 1800dia x 2400d RAPID INFILTRATION PIT
Drawn: PBL
PBL
WITH 900x900 CLASS 'B' GRATE
Datum AHD
N= 80497.065 15.272 1.578 16.313
A1 SHEET SIZE
Date: AUG 2022
2.70
Checked:. . . . . . . . . . .
600(2)
0.789
29.974
106.95
0.94%
4B/1
140.728 E= 8342.121 16.300 14.992 1.308 15.860 1800dia x 2400d RAPID INFILTRATION PIT
N= 80475.474 14.991 1.309 15.758 WITH 900x900 CLASS 'B' GRATE
Q100
2.72
1
9.749
600(2)
0.795
106.95
0.94%
150.477 E= 8335.392 16.150 14.900 1.250 15.608 900x900 GRATED PIT 5/1
N= 80468.420 13.650 2.500 14.956 BOLT DOWN CLASS 'B' GRATE
2.89
600(2)
0.844
13.33
16.004
7.50%
166.481 E= 8332.957 13.500 12.450 1.050 14.679 900x900 GRATED PIT 6/1
N= 80452.602 11.500 2.000 14.584 BOLT DOWN CLASS 'B' GRATE
2.90
600(2)
6.143
0.848
200.00
0.50%
172.624 E= 8331.661 13.350 11.469 1.881 14.477 1200x1200 GRATED PIT WITH 7/1
N= 80446.597 11.401 1.949 12.884 BOLT DOWN CLASS 'D' GRATE
5.00
600(2)
1.460
40.00
17.342
2.50%
300 MIN CLEARANCE
189.966 E= 8345.154 12.262 10.968 1.294 11.985 1200x1200 GRATED PIT 8/1
N= 80435.703 10.948 1.314 11.398 BOLT DOWN CLASS 'D' GRATE
-6.0
FILENAME : a6769-24-D07 DRAINAGE LONG SECTION.dwg - DATE : 27/2/25 - 11:30am - XREF's:
WITH CONCRETE APRON
2.89
6.40
1200
1.564
IL8.84
11.70
8.54%
30.401
14.45m
SEWER
x 450 (RCBC)
(6.26 63.20%A)
220.367 E= 8372.534 9.500 8.350 1.150 7.544 1500x900 PIT WITH IMPERVIOUS 9/1
N= 80422.490 7.000 2.500 7.450 BOLT DOWN LID
4.97
2.89
1200
1.564
24.71
16.925
4.05%
x 450 (RCBC)
(4.90 63.20%A)
A.B.N. 91 611 354 511
237.292 E= 8386.958 7.200 6.315 0.885 6.577 STONE PITCHED HEADWALL OUT/1
Web: http://www.alta.net.au
N= 80413.636 WITH 5m2 GEOFABRIC & ROCK APRON
Email: [email protected]
Brah 101 pty ltd t/a Alta Projects
26 Memorial Avenue, Cotton Tree
PO Box 559, Cotton Tree, QLD, 4558
Tel (07) 5475 4125 Fax (07) 5479 1607
PROJECT:
PROPOSED HOTEL
GRADE
LEVELS
LEVELS
CHAINAGE
VC LENGTH
CUT(-)/FILL() ̀
DATUM R.L.7.0
DESIGN SURFACE
NATURAL SURFACE
F
for CALILE MALOUF INVESTMENTS
0.000 19.070 19.070 0.000
O
6.510, 18.350 I.P.6.510, 18.350
9.469, 18.750 I.P.9.469, 18.750
-11.058%
10.517, 18.750 I.P.10.517, 18.750
12.407, 18.100 I.P.12.407, 18.100
at 3-7 SERENITY CLOSE, NOOSA HEADS
20.000 18.944 17.820 -1.124
R
Council Ref:
35.495 18.443 17.250 -1.193
35.495, 17.250 I.P.35.495, 17.250
40.000 18.276 17.223 -1.053
43.699, 17.200 I.P.43.699, 17.200
-3.682%-0.609%
IN
60.000 17.625 17.115 -0.510
F
0
0
O
80.000 17.019 17.011 See the original
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