Territory Stories

Alice Springs Flood Investigation and Floodplian Mapping Study

Details:

Title

Alice Springs Flood Investigation and Floodplian Mapping Study

Creator

WRM Water & Environment Pty Ltd; Northern Territory. Department of Lands, Planning & the Environment

Editor

Roads, Greg

Collection

E-Publications; PublicationNT; E-Books; EXTA1463

Date

2015-10-12

Location

Alice Springs

Description

Made available via the Publications (Legal Deposit) Act 2004 (NT).; WRM Water & Environment (WRM) was commissioned by the Department of Lands & Planning (DLP) to undertake a flood study of the Todd River in the Alice Springs area. The aim of the study is to develop a 2 dimensional flood model, which allows flood flow in a complex flood plain to be modelled, to determine the extent and severity of riverine flooding in the town of Alice Springs and the Alice Springs rural area south of Heavitree Gap. The purpose of the study is to produce floodplain maps of the Alice Springs and its rural area for land use planning and counter – disaster purposes. This study is an extension of the Alice Springs Farms Area Floodplain Mapping Study (WRM, 2006), undertaken by WRM on behalf of the Department of Planning & Infrastructure in 2006 in order to develop detailed Todd River floodplain maps for the rural area south of Alice Springs.

Table of contents

1. INTRODUCTION -- 2. CATCHMENT DESCRIPTION -- 3. AVAILABLE DATA -- 4. CALIBRATION AND AND VERIFICATION EVENTS -- 5. HYDROLOGIC MODEL CALIBRATION AND VERIFICATION -- 6. HYDRAULIC MODEL DEVELOPMENTLOPMENT -- 7. HYDRAULIC MODEL CALIBRATION -- 8. FLOOD FREQUENCY ANALYSIS -- 9. DESIGN EVENT HYDROLOY -- 10. DESIGN FLOOD LEVELS AND EXTENTS -- 11. CONCLUSION -- 12. REFERENCES

Language

English

Subject

Flood control -- Northern Territory -- Alice Springs; Flood damage prevention -- Northern Territory -- Alice Springs; Floodplain management -- Northern Territory -- Alice Springs; Alice Springs Flood Investigation; Floodplain Mapping

Publisher name

WRM Water & Environment Pty Ltd

Place of publication

Darwin (N.T.)

Series

EXTA1463

Format

vii, 95 pages : colour maps ; 30 cm.

File type

application/pdf.

Copyright owner

Check within Publication or with content Publisher.

Parent handle

https://hdl.handle.net/10070/259732

Citation address

https://hdl.handle.net/10070/494349

Page content

0269-02-C1 12 October 2015 60 Figure 7.12 Comparison of Surveyed Debris Marks and Predicted Peak Water Levels, Todd River, Charles River to Kempe Street, March / April 1988 Flood Event 7.3.3 Extent of Flooding Figure 7.13 shows the estimated flood extent and flood depths for the 1988 flood. The locations of eyewitnesses who provided information on the flood behaviour during the 1988 flood are also shown. Brian Gil from the Arid Zone Research Institute (AZRI) (Location A) provided the following information: During 1988 flood, water flowed through the creek line that crosses the access road. None of the buildings were inundated during the flood. Water flowed in southeast direction towards Colonel Rose Drive (See Figure 7.13. Bill Low, a resident of Isotoma Road (Location B) provided the following information: During the 1988 flood, water flowed through his property approx 100 mm deep. Water flowed south towards Colonel Rose Drive and then crossed the road at a floodway located at the edge of the subdivision. Water flowed parallel to Colonel Rose Drive instead of flowing across it (See Figure 7.13) Ruth Sliep Resident of Parakeelya Road (Location C) provided the following information: During 1988 flood, she was living in the shed on the block. The shed had approximately 300 mm deep water pass through it.


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