Territory Stories

Floodplain Management Policy, Alice Springs Report by the Alice Springs Floodplain Working Group



Floodplain Management Policy, Alice Springs Report by the Alice Springs Floodplain Working Group


Verhoeven, T. J.


E-Publications; E-Books; PublicationNT; Report ; 37/1983




Made available via the Publications (Legal Deposit) Act 2004 (NT).





Publisher name

Dept. of Transport and Works

Place of publication

Alice Springs


Report ; 37/1983

File type


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Check within Publication or with content Publisher.

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Page content

Technical Report WRA83037 Viewed at 04:02:48 on 18/02/2010 Page 8 of 14. ., .J ~ ! J 1 ] 1 _. J: l ]: 3 . 4 3.4.2. 3.4.3. 3.4.4. 3 d ~ _ .. ::;. r U The floodway is depicted as the grey shaced area on the plan at appendix f3 1 Within this zone the depth of inundation exceecs 2 metres and/or the product of depth and velocity exceeds 1. Structures within the floodway are liable to lengthy periods of inundation (a number of hours) and are likely to be subject to forces which can cause structural dfuuage. The resources available to the Working Group were unable to divide the area defi~ed as floodway into those areas havi~g only high velocity (but low depth of flew) anc those having only high depth of inundatien (but low velocity) . Taking the QIOO event, a physical count shows app~oximately 200 businesses are located within the floodway. '3usi~essesl include retail, commercial, Wholesale, accoIT~odation, leisuz:-e, transport arld government bodies. Approximately 700 ground fleor residences are located in the floodway. By incorporating the flood fringe for the Ql00 event, a further 200 busineSSeS a~d another 700 ground floor residences are affected. Taking an average of 2.5 persons per dwelling, some 3500 people or abmE. one-fifth of the population of the Town would be affected by flcoding. Temporary accowmodation would be required for these people after a Q100 event. ~

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