Appendix A - RTA

rta.nsw.gov.au

Appendix A - RTA

Figure A3-4

Pacific Highway

Upgrade Project

Warrell Creek

to Urunga

Environmental

Impact

Assessment

URUNGA

Kalang River

Existing Conditions

100 year ARI

Flooding Comparision

Legend

Afflux

Towns

Depth (m)

< 0.5

0.50 - 0.52

0.52 - 0.54

0.54 - 0.56

0.56 - 0.58

0.58 - 0.60

0.60 - 0.70

> 0.7

±

0 0.25 0.5 0.75 1 1.25

Kilometers

Projection: MGA Zone 56

I:\ENVR\Projects\EN02286\33- Hydrology and Hydraulics\Spatial\Projects\0800526_Kalang_100y_Ex_Sensit.mxd Produced: 26/05/2008


Working paper 5 –Flooding

Appendix B Hydraulic results – developed

conditions – existing climate

B.1 Nambucca River

ENVIRONMENTAL ASSESSMENT/ SINCLAIR KNIGHT MERZ

PAGE 62


Figure B1-1

Pacific Highway

Upgrade Project

Warrell Creek

to Urunga

MACKSVILLE

Environmental

Impact

Assessment

Nambucca River

Developed Conditions

Existing Climate

10 year ARI

Change in Flood Level

Option 1

Legend

Change in Flood Level (m)

Decrease greater than 0.1m

Decrease -0.08m to 0.1m

Decrease -0.06m to -0.08m

Decrease -0.04m to -0.06m

Decrease -0.02m to -0.04m

Decrease -0.015m to -0.02m

Change - Less than 0.015m

Increase - 0.015m to 0.02m

Increase 0.02m to 0.04m

Increase 0.04m to 0.06m

Increase 0.06m to 0.08m

Increase - greater than 0.08m

±

0 100 200 300 400 500 600

Metres

Projection: MGA Zone 56

I:\ENVR\Projects\EN02286\33- Hydrology and Hydraulics\Spatial\Projects\Nambucca_100y_AffluxA_Option1.mxd Produced: 12/02/2009

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