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Flood Warning and Damages in Alice Springs: Part 1 Executive Summary. Part 2 Tangible Damages Part 3 Intangible Damages & Emergency Procedures



Flood Warning and Damages in Alice Springs: Part 1 Executive Summary. Part 2 Tangible Damages Part 3 Intangible Damages & Emergency Procedures


Handmer, John; Smith, D. I.; Greenaway, Mark


E-Publications; E-Books; PublicationNT; Report ; 53/1989




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





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Power and Water Authority

Place of publication

Alice Springs


Report ; 53/1989

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Check within Publication or with content Publisher.

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Technical Report WRA89053 Viewed at 03:02:00 on 18/02/2010 Page 44 of 139. -' ~' as 5960,000. :~c~~di~g additional damage to infrastructure ~ltnl~ the area o~ the study, ~he best estimate for combined damage is 53,46:,000. T~ese values do not include flood damage to propercy ana facilities caused by the same event ~utslde ~~e ci~y o~ A~ice Springs. In addition, Alice Springs also experienced extensive wind damage and losses jue to the surc~arge :f t~e urban drainage system. These have not generally bee~ inc:uded in Table 2.8 except where such losses were with~~ the li~its of the Todd flood-water. It s~ould be nc:ed that these limits are not easy to deflne. Resident':'al staq-e-damages :::-ecommef'.ded for use in Alice Spr~ngs are p=ese~ted and were used to estimate direct 'ia~age. Com~e==ial lasses ~ere assessed by interview. Uowee r or f-'--u- o s-""dies ~~ ;100dDlal"~ ~anagemen~ oD~ions :-1\- \J _I l...... ""' __ '- '_~ _ ',-,_ 1._ _ _ 'L: .ll. _ '--_ ~ l>:~"lised cCrQllercial s:.a~e-damage curves are also included, see Apper.ii.x 2. Direct da::1age tc property managed by .1I.boriginal organisations within Alice Springs is estimated at 568,000. However, this Includes damage from flood ~ate=s other than che Todd River. In addition, about 75 :ive: bed campers lost all their possessions, and many people had to seek 31ternative acc:O:1'~"l1oda:,on. The flooding was extensive but the depths of inundation were relatively =estricted, the maximum overfloo= depths were ra:ely more than one metre. The topography of the site howeve=, is such that a small inc=ease in flood levels would greatly increase the number of properties effected. T~is is esceciallv the case for the co~~ercial 3~c~or. This =einfor~es the-need for further studies to be ~nder=aken to esti~ate che damage potential from larger flcods in order ~o assess tr.e optimum mix of mitigation ~eaSu=es. These shou:d include the fo=m~lation of an integrated floodwarni~g system with emphasis upon the early dissemination of warni~gs to those exposed to flood risk. Ques~ions of safety for hotels and motels, retirement homes, the hospital and t~e ;.boriginal community are of particular conce:::-n. References nutchinson, M.t. 1989 A new procedu:e ~or gridding elevation and stream line data f>"l-ith automat.:'c removal of spurious pits. ]ournal of i!ydrology. 106: 211-232. ~UStlg, T.L., Handme:, J.(l., Smith, D.L and M_ G=eenaway 1938 The Sydney floods of August 1986. Vols 1 and 2. Canberra: CRES, .J..NU. Water Resources Division 1986 "Flood damage st~dy for Alice Springs". Alice Springs: Water Resources ~ivisionf Dept of M~nes and Energy_ I I I I I I I I I I I I I I I I I I I I

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