FIGURE1 STUDY AREA STUDY

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C km 10 BurrillLake Brooman BatemansBay Broulee 5 Congo Mogo Mystery Bay Moruya Tomakin Tathra Monga Charleyong Cobargo Bega Brogo BelowraValley MajorsCreek Bimbaya Bemboka 2.5 Captains Flat Cowra Maclaughlin Sutton Queanbeyan RockFlat Chakola Catchment Area Catchment Creeks Michelago Cooma Canberra

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mxd J:\Jobs\114088\ArcView\ArcMaps\Figure01_Study_Area. FIGURE2 TERRAIN DATA

DIGITAL ELEVATION MODELELEVATION DIGITAL

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C km 1 CatchmentArea AvailableSurvey Data AvailableCross-sectional Data High : 479.613 Low : -3.819

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rvey.mxd J:\Jobs\114088\ArcView\ArcMaps\Figure02_ALS_Hydrosu km

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FIGURE3

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Bridge Locations

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e G Dunns CreekBridge Dunns CreekRd, Bridge BRIDGESTRUCTURES BeachRd, Candlagan Ck 0.25 Tomakin 0 0.5 1 1.5 2 Pde Sunpatch

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r e iv R a g a m o T Tomakin Rd, WoodenTomakin Bridge George Bass Dr, Tomaga River George Tomaga Bass Dr,

k George BassCandlagan Dr, Ck e e r Rd C akin Tom n a g

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m d a J Connell Rd,Bridge Terry Tomakin n a C

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u B PrincesMogo Hwy, Creek PrincesLynchCreek Hwy, PrincesJeremadra Hwy, Creek

Note: AdditionalNote: structuresnot shown have also been included in the model.

tures.mxd J:\Jobs\114088\ArcView\ArcMaps\Figure03_BridgeStruc FIGURE 4 $+$+ $+ HYDRAULIC MODEL STRUCTURES $+$+ $+$+ $+ $+ Mogo $+$+ Ca $+ $+$+ bbage $+$+ $+ Tree $+ $+ Creek $+ $+$+ $+ $+ $+$+$+ $+ $+ $+ $+ $+ $+ $+$+ $+ $+ $+ $+$+ $+ $+ $+ $+$+$+ $+$+$+ $+ $+ $+ $+ $+$+$+ $+$+ $+$+ $+ $+$+ $+$+$+ $+$+$+ $+ $+$+$+ $+ $+ $+$+ $+ $+$+ $+ $+ $+ k $+ $+ $+$+$+ $+ Mogo e $+ $+$+ e $+$+ $+ r $+ C $+ $+$+$+ $+ $+ $+ s $+ $+ $+ $+ $+$+$+$+$+$+$+ n $+ $+$+ $+ $+ $+ n $+$+ $+ $+ $+ $+ $+$+$+ u $+ $+ $+$+ $+$+ $+ $+ $+ $+$+ $+ M$+$+ D $+ $+$+ $+$+ $+$+$+$+ $+ $+$+$+$+$+$+ $+ $+ $+$+ $+$+$+$+ o $+$+ $+$+$+ g $+$+ $+$+ o $+ $+ $+ $+$+ C $+$+ $+ $+$+$+$+ r $+ $+$+$+$+ e Tomakin $+ e $+ $+ $+ $+ $+$+ k $+ $+ $+ $+$+ $+ $+$+ $+ $+$+$+ $+ $+$+ $+$+ $+$+$+$+Mossy Point $+ $+ $+$+$+ $+$+ $+ $+ $+ $+$+ $+ $+$+$+$+$+$+$+$+ $+$+ $+ $+ $+$+$+ k $+ $+ $+$+ $+$+ e $+$+$+ re $+ $+ $+ $+ C $+ $+ $+$+ $+ $+ $+ $+ ra $+ $+ $+ $+ $+$+$+$+$+$+$+$+ d $+$+$+ $+$+ $+ $+ $+$+$+$+ a $+ $+$+ $+$+ $+$+ $+ em $+$+$+ $+ $+ $+ r $+$+ $+$+$+$+$+ $+$+$+$+ $+ Je $+$+$+ $+ $+ $+$+ $+$+ $+ $+ $+ $+ $+ $+$+$+$+$+$+ $+$+ $+ $+$+$+$+ $+ $+$+ $+$+$+ $+ $+ $+$+$+$+ $+ $+$+ $+$+ $+$+$+$+ $+ $+ $+$+

$+ Broulee $+ $+ To $+$+$+$+ $+ m ag $+$+$+ $+$+ $+ a $+ R $+ $+$+ $+ $+ iv $+ $+$+ $+$+ $+ er $+ $+$+ $+$+ $+ $+ $+$+$+$+$+ $+$+ $+$+ $+$+ $+ $+ $+$+ $+ $+ $+ $+$+ $+ $+ $+ $+ $+ $+ $+$+ $+$+$+$+ $+ $+ $+ C $+$+ $+ $+ $+ $+ $+ $+ a $+ $+ $+$+ $+$+ $+$+$+$+ $+ $+$+ n $+ $+ $+ ures.mxd $+$+ d $+ $+ $+$+ $+ la $+ $+$+ $+$+$+$+ $+$+ $+ $+ g $+ $+$+$+$+$+$+$+$+ $+$+ $+$+$+ $+ an $+ $+ $+ $+ $+$+$+ C $+ $+$+ Tomakin r $+$+$+ $+$+$+$+$+ ee $+$+ $+ k $+$+ $+ $+$+ $+ $+$+ $+ $+$+ $+ $+ $+ $+ $+ $+ $+ $+$+$+ $+ $+$+ $+ $+ $+$+ $+ $+ $+ $+ $+ $+ $+$+$+ $+$+$+ $+$+$+ $+ $+$+$+ $+$+$+$+$+$+ $+$+$+$+Mossy Point $+ $+ ´ $+ $+$+$+$+$+$+$+ $+ $+$+$+$+ $+ $+$+ $+$+$+ $+$+ $+ $+ $+$+ Lynch Creek $+ $+ $+$+$+ $+$+$+$+$+$+ $+$+$+ $+$+ $+$+ $+$+ $+$+$+ $+$+$+$+$+ $+$+ $+$+ $+$+ Hydraulic Model Extent $+ $+$+$+$+ $+$+$+$+ $+$+ $+$+$+$+ $+$+ $+ $+$+$+$+ Bridges $+ $+$+$+$+$+$+ $+$+$+$+$+ $+$+$+ $+$+$+$+ $+ Culverts Broulee $+$+$+$+ Pipes $+$+$+$+ $+ $+ $+$+$+$+ $+ $+$+$+$+ $+$+ Pits $+$+$+ $+$+$+ $+ $+$+$+$+ $+ $+ $+$+$+$+$+$+$+$+ $+$+$+$+ $+$+ $+$+$+$+$+$+ $+$+$+ Roads $+$+$+ $+ $+ $+ $+ $+ $+$+$+ $+$+$+$+ $+ $+ $+$+ Creeks $+ $+ $+ $+$+$+ $+$+ $+$+ 01 2 4 6 km J:\Jobs\114088\ArcView\ArcMaps\Figure04_HydraulicModelStruct FIGURE 5 Nelligen (Thule Rd) GAUGE LOCATIONS 69023

Araluen Lower (Araluen Rd) 69127

Batemans Bay (Catalina Country Club) 69134

Batemans Bay - Buckenbowra 69052

Deep Creek Dam

Bettowynd (Nobbys Hill)

69035 Moruya (The Lagoon) 69042 Mogo

216455 Tomakin Mossy Point ons.mxd Broulee ´

Catchment Area Pluviometer Gauges

Daily Rainfall Gauges 69148 Moruya Airport AWS Moruya (Burra Creek) Deep Creek Dam Tipping Bucket 69033 Moruya Heads Pilot Station George Bass Drive Water Level 69018

02.5 5 10 Moruya (Kiora) 69142 km J:\Jobs\114088\ArcView\ArcMaps\Figure05_GaugeLocati m ´ FIGURE6 FloodMarks Properties Floodmarked HISTORICAL FLOOD MARKS 62Elizabeth Drive ELIZABETHDRIVE 1974 EVENT 50 34Elizabeth Drive 0 100 200 300 400

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_1974FloodMarks.mxd J:\Jobs\114088\ArcView\ArcMaps\Figure06_ElizabethDr FIGURE7 HYDROLOGIC MODELLAYOUT

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C km 1 CatchmentArea Hydraulic Model InflowLocations Subcatchments

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odelLayout.mxd J:\Jobs\114088\ArcView\ArcMaps\Figure07_HydrologicM FIGURE8 HYDRAULIC MODEL ROUGHNESS

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C km 1 CatchmentArea DenseTrees: n=0.12 MediumTrees: n=0.07 Swamp: n=0.06 Grass/Clearing:n=0.04 Areas:Dirt n=0.03 Waterways:n=0.03 Roads:n=0.02

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FIGURE9

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HYDRAULIC (TUFLOW)MODEL LAYOUT

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C km 1 Creeks DownstreamTailwater Hydraulic Model InflowLocations Hydraulic Routed Inflows TUFLOW 2.5mNested Grid Extent TUFLOW 10m Grid Extent Hydrologic Model Extent High : 225.227 Low : -6

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delLayout.mxd J:\Jobs\114088\ArcView\ArcMaps\Figure09_HydraulicMo FIGURE 10 HYDRAULIC MODEL CALIBRATION TIDAL - DECEMBER 1998 EVENT J:\Jobs\114088\TUFLOW\results\B_Hist\Tables\Calibration_Tide_1998.xlsx STAGE HYDROGRAPH 1.2

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-0.8 Tide Level - Jervis Bay (216470) Water Level - George Bass Dr (216455) TUFLOW Modelled Level - George Bass Dr -1 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 Date and Time