FIGURE 1 STUDY AREA · 2020. 12. 11. · FIGURE 12 HYDRAULIC MODEL CALIBRATION FEBRUARY 2010 EVENT...
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C a ndl a g a n C r e ek C a bba ge T r e e C r e e k Du nns C r e e k M o go Cree k Jer e m adra Cre ek L yn ch C r ee k T o maga R i ver Mogo Broulee Tomakin Mossy Point Catchment Area Creeks ´ FIGURE 1 STUDY AREA J:\Jobs\114088\ArcView\ArcMaps\Figure01_Study_Area.mxd 0 5 10 2.5 km Bega Congo Brogo Cooma Cowra Monga Moruya Tathra Sutton Brooman Bimbaya Bemboka Cobargo Chakola Canberra Rock Flat Michelago Queanbeyan Charleyong Mystery Bay Maclaughlin Batemans Bay Burrill Lake Majors Creek Captains Flat Belowra Valley Mogo Broulee Tomakin
Transcript of FIGURE 1 STUDY AREA · 2020. 12. 11. · FIGURE 12 HYDRAULIC MODEL CALIBRATION FEBRUARY 2010 EVENT...
Candlagan Creek
Cabbage Tree Creek
Dunns C
reek
Mogo C
reek
Jeremadra C
reek
Lynch Creek
Tomaga River
Mogo
Broulee
Tomakin
Mossy Point
Catchment Area
Creeks
´
FIGURE 1
STUDY AREA
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Bega
Congo
Brogo
Cooma
Cowra
Monga
Moruya
Tathra
Sutton
Brooman
Bimbaya
Bemboka
Cobargo
Chakola
Canberra
Rock Flat
Michelago
Queanbeyan
Charleyong
Mystery Bay
Maclaughlin
Batemans Bay
Burrill Lake
Majors CreekCaptains Flat
Belowra Valley
Mogo
BrouleeTomakin
Old Mossy Point Rd
Tomakin Rd
Prin
ce
s H
ighw
ay
George Bass Dr
Prince
s Hig
hway
Tomaga River
Cabbage Tree Creek
Dunn
s C
reek
Jeremadra Creek
Lynch Creek
Mogo
Broulee
Tomakin
Mossy Point
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FIGURE 2
DIGITAL ELEVATION MODELTERRAIN DATA
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Catchment Area
Available Survey Data
Available Cross-sectional Data
Elevation (mAHD)
High : 479.613
Low : -3.819
Vei tch S
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Church St
Prin
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Hig
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Tomakin Rd
Jam
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Buckenboura Rd
George Bass Dr
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Candlagan Creek
Tomaga River
Jeremadra Creek
Dunn
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Lynch Creek
Mogo
Tomakin
Mossy Point
Coro
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Bridge Locations
BRIDGE STRUCTURESFIGURE 3
Tomakin Rd, Terry Connell Bridge
Tomakin Rd, Wooden Bridge
Dunns Creek Bridge
Dunns Creek Rd, Bridge
George Bass Dr, Candlagan Ck
George Bass Dr, Tomaga RiverBeach Rd, Candlagan Ck
Princes Hwy, Lynch Creek
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Princes Hwy, Jeremadra Creek
Princes Hwy, Mogo Creek
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Note: Additional structures not shown have also been included in the model.
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Candlagan Creek
Tomaga River
Cabbage Tree Creek
Dunn
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Mogo
Cre
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Jeremadra Creek
Lynch Creek
Mogo
Broulee
Tomakin
Mossy Point
Hydraulic Model Extent
Bridges
Culverts
Pipes
$+ Pits
Roads
Creeks
´
FIGURE 4
HYDRAULIC MODEL STRUCTURES
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Tomakin
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Broulee
Mossy Point
Mogo
Moruya (Kiora)
Moruya (The Lagoon)
Nelligen (Thule Rd)
Moruya (Burra Creek)
Bettowynd (Nobbys Hill)
Batemans Bay - Buckenbowra
Moruya Heads Pilot Station
Batemans Bay (Catalina Country Club)
69142
69134
69052
69042
69035
69033
69023
69018
216455
Deep Creek Dam
Moruya Airport AWS
Araluen Lower (Araluen Rd)
69127
69148
Mogo
Broulee
TomakinMossy Point
FIGURE 5
GAUGE LOCATIONS
Catchment Area
Pluviometer Gauges
Daily Rainfall Gauges
Deep Creek Dam Tipping Bucket
George Bass Drive Water Level
´
0 5 102.5
km
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Broulee
HISTORICAL FLOOD MARKS
ELIZABETH DRIVE 1974 EVENT
FIGURE 6
90 Elizabeth Drive
36 Elizabeth Drive
28 Elizabeth Drive
18 Elizabeth Drive
34 Elizabeth Drive
86 Elizabeth Drive
72 Elizabeth Drive 62 Elizabeth Drive
56 Elizabeth Drive
52 Elizabeth Drive
Flood Marks
Properties Floodmarked
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Note: Floodmarks shown are approximately0.3m above the actual flood level
Candlagan Creek
Cabbage Tree Creek
Dunns C
reek
Mogo C
reek
Jeremadra C
reek
Lynch Creek
Tomaga River
Mogo
Broulee
Tomakin
Mossy Point
Catchment Area
Hydraulic Model Inflow Locations
Subcatchments
´
FIGURE 7
HYDROLOGIC MODEL LAYOUT
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Candlagan Creek
Tomaga River
Cabbage Tree Creek
Dunn
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reek
Mogo
Cre
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Jeremadra Creek
Lynch Creek
Mogo
Broulee
Tomakin
Mossy PointCatchment Area
Hydraulic Roughness
Dense Trees: n=0.12
Medium Trees: n=0.07
Swamp: n=0.06
Grass/Clearing: n=0.04
Dirt Areas: n=0.03
Waterways: n=0.03
Roads: n=0.02
´
FIGURE 8
HYDRAULIC MODEL ROUGHNESS
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Old Mossy Point Rd
Tomakin Rd
Prin
ce
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George Bass Dr
Prince
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Candlagan Creek
Cabbage Tree Creek
Dunns C
reek
Jeremadra C
reek
Lynch Creek
Tomaga River
Mogo
Broulee
Tomakin
Mossy Point
Creeks
Downstream Tailwater
Hydraulic Model Inflow Locations
Hydraulic Routed Inflows
TUFLOW 2.5m Nested Grid Extent
TUFLOW 10m Grid Extent
Hydrologic Model Extent
Ground Level (mAHD)High : 225.227
Low : -6
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FIGURE 9
HYDRAULIC (TUFLOW) MODEL LAYOUT
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-1
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-0.2
0
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1
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22/12/1998 0:00 22/12/1998 12:00 23/12/1998 0:00 23/12/1998 12:00 24/12/1998 0:00 24/12/1998 12:00 25/12/1998 0:00 25/12/1998 12:00
Wate
r L
ev
el (m
AH
D)
Date and Time
Tide Level - Jervis Bay (216470)
Water Level - George Bass Dr (216455)
TUFLOW Modelled Level - George Bass Dr
FIGURE 10
HYDRAULIC MODEL CALIBRATION TIDAL - DECEMBER 1998 EVENT
STAGE HYDROGRAPH J:\Jobs\114088\TUFLOW\results\B_Hist\Tables\Calibration_Tide_1998.xlsx
-1
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Wate
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ev
el (m
AH
D)
Date and Time
Tide Level - Jervis Bay (216470)
Water Level - George Bass Dr (216455)
TUFLOW Modelled Level - George Bass Dr
FIGURE 11
HYDRAULIC MODEL CALIBRATION TIDAL - MAY 2012 EVENT
STAGE HYDROGRAPH J:\Jobs\114088\TUFLOW\results\B_Hist\Tables\Calibration_Tide_2012.xlsx
Moruya (Kiora)
Moruya (The Lagoon)
Nelligen (Thule Rd)
Moruya (Burra Creek)
Bettowynd (Nobbys Hill)
Batemans Bay - Buckenbowra
Moruya Heads Pilot Station
Batemans Bay (Catalina Country Club)
69142
69134
69052
69042
69035
69033
69023
69018
216455
Deep Creek Dam
Moruya Airport AWS
Araluen Lower (Araluen Rd)
69127
69148
Mogo
Broulee
TomakinMossy Point
FIGURE 12
HYDRAULIC MODEL CALIBRATIONFEBRUARY 2010 EVENT
RAINFALL DISTRIBUTION
Catchment Area
Pluviometer Gauges
Daily Rainfall Gauges
Deep Creek Dam Tipping Bucket
George Bass Drive Water Level
Temporal Pattern Applied to Subcatchments
Moruya Airport AWS
Deep Creek Dam
Rainfall Depth in mm (48hrs to 9am)
113 - 140
140 - 160
160 - 180
180 - 200
200 - 220
220 - 232
´
0 5 102.5
km
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Wate
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ev
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AH
D)
Rain
fall (
mm
per
15m
in)
Date and Time
Pluviometer - Araluen Lower (69127)
Pluviometer - Moruya Airport AWS (69148)
Pluviometer - Deep Creek Dam
Tide Level - Jervis Bay (216470)
Water Level - George Bass Dr (216455)
TUFLOW Modelled Level - George Bass Dr
FIGURE 13
HYDRAULIC MODEL CALIBRATION RAINFALL - FEBRUARY 2010 EVENT
STAGE HYDROGRAPH J:\Jobs\114088\TUFLOW\results\B_Hist\Tables\Calibration_Rainfall_2010.xlsx
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Mogo
Broulee
Tomakin
Mossy Point
Flooding Experiences
Model Extent
Flood Level Contours
Major Contours (5m interval)
Minor Contours (1m interval)
Depth (m)
0 - 1.0
1.0 - 2.0
2.0 - 3.0
3.0 - 4.0
4.0 - 5.0
> 5.0
´
FIGURE 14
VERIFICATION1% AEP EVENT
PEAK FLOOD DEPTH AND LEVEL CONTOURS
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Mogo
Broulee
Mossy Point
Tomago River
Candlagan Creek
Old Mossy Point Rd
Tomakin Rd
Prin
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Prince
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Tomaga River
Cabbage Tree Creek
Dunn
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reek
Jeremadra Creek
Lynch Creek
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Broulee
Tomakin
Mossy Point
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Catchment Area
Profiles
Candlagan Creek
Dunns Creek
Jeremadra Creek
Mogo Creek
Tomago River
! Hydrographs
1% AEP Extent
FIGURE 15
RESULTS LAYOUT
-1
0
1
2
3
4
5
6
7
8
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000
Peak F
loo
d L
ev
el (m
AH
D)
Chainage (m from Downstream Ocean Confluence)
Ground Elevation
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 16A
PEAK FLOOD LEVEL PROFILES CANDLAGAN CREEK J:\Jobs\114088\TUFLOW\results\D_Design\Profiles\Profiles_022.xlsx
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
Peak F
loo
d L
ev
el (m
AH
D)
Chainage (m from Downstream Ocean Confluence)
Ground Elevation
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 16B
PEAK FLOOD LEVEL PROFILES TOMAGO RIVER J:\Jobs\114088\TUFLOW\results\D_Design\Profiles\Profiles_022.xlsx
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
8300 8800 9300 9800 10300 10800 11300 11800 12300 12800 13300
Peak F
loo
d L
ev
el (m
AH
D)
Chainage (m from Downstream Ocean Confluence)
Ground Elevation
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 16C
PEAK FLOOD LEVEL PROFILES JEREMADRA CREEK J:\Jobs\114088\TUFLOW\results\D_Design\Profiles\Profiles_022.xlsx
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
10000 10500 11000 11500 12000 12500 13000 13500 14000
Peak F
loo
d L
ev
el (m
AH
D)
Chainage (m from Downstream Ocean Confluence)
Ground Elevation
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 16D
PEAK FLOOD LEVEL PROFILES MOGO CREEK J:\Jobs\114088\TUFLOW\results\D_Design\Profiles\Profiles_022.xlsx
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
10000 10500 11000 11500 12000 12500 13000
Peak F
loo
d L
ev
el (m
AH
D)
Chainage (m from Downstream Ocean Confluence)
Ground Elevation
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 16E
PEAK FLOOD LEVEL PROFILES DUNNS CREEK J:\Jobs\114088\TUFLOW\results\D_Design\Profiles\Profiles_022.xlsx
-1
0
1
2
3
4
5
6
0 5 10 15 20 25 30 35 40
Flo
od
Lev
el (m
AH
D)
Time (hrs)
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 17A
PEAK FLOOD LEVEL PROFILES TOMAGO RIVER - GEORGE BASS DRIVE GAUGE J:\Jobs\114088\TUFLOW\results\D_Design\Hydrographs\Hydrographs_022.xlsx
0
1
2
3
4
5
6
0 5 10 15 20 25 30 35 40
Flo
od
Lev
el (m
AH
D)
Time (hrs)
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 17B
PEAK FLOOD LEVEL PROFILES CANDLAGAN CREEK - GEORGE BASS DRIVE J:\Jobs\114088\TUFLOW\results\D_Design\Hydrographs\Hydrographs_022.xlsx
3
4
5
6
0 5 10 15 20 25 30 35 40
Flo
od
Lev
el (m
AH
D)
Time (hrs)
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 17C
PEAK FLOOD LEVEL PROFILES BROULEE - CRN OF ANGLE ST AND ELIZABETH DR J:\Jobs\114088\TUFLOW\results\D_Design\Hydrographs\Hydrographs_022.xlsx
0
1
2
3
4
5
6
0 5 10 15 20 25 30 35 40
Flo
od
Lev
el (m
AH
D)
Time (hrs)
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 17D
PEAK FLOOD LEVEL PROFILES MOSSY POINT - CONNELLS CL J:\Jobs\114088\TUFLOW\results\D_Design\Hydrographs\Hydrographs_022.xlsx
3
4
5
6
7
8
9
10
11
0 5 10 15 20 25 30 35 40
Flo
od
Lev
el (m
AH
D)
Time (hrs)
0.2 EY Event
10% AEP Event
5% AEP Event
2% AEP Event
1% AEP Event
0.5% AEP Event
PMF Event
FIGURE 17E
PEAK FLOOD LEVEL PROFILES MOGO CREEK - UPSTREAM OF PRINCES HWY J:\Jobs\114088\TUFLOW\results\D_Design\Hydrographs\Hydrographs_022.xlsx
