Floodplain Management Policy, Alice Springs Report by the Alice Springs Floodplain Working Group
Verhoeven, T. J.
E-Publications; E-Books; PublicationNT; Report ; 37/1983
1983
Made available via the Publications (Legal Deposit) Act 2004 (NT).
Date:1983-01
English
Dept. of Transport and Works
Alice Springs
Report ; 37/1983
application/pdf.
Check within Publication or with content Publisher.
https://hdl.handle.net/10070/228884
https://hdl.handle.net/10070/673617
Technical Report WRA83037 Viewed at 04:02:48 on 18/02/2010 Page 5 of 14. ., 1 -, , , " . ; l . -,. -,. F I 3.1.2. 3 . REPORT FLOOD CRITERIO~, From the evidence obtained, it is clear to the Working Group that nothina :ess than che QI00 flood event should be adoptee for floodplain management. Significant factors in support- are: i) the extent of tne floodway a::.d the extent of the boundary of lane :iable to flooding. Note: 'The exter:.t is similar for the 1 in 50 and the 1 in 100 return period events, but narkedly ~iferent from the 1 in 20 event. Refer appendix ii) iii) 1 At; t '- - ., . . ., - c~~-11e nature oz ~ne pnyslca~ ma~e-u? the catchment a~ea ~ea~s t~at o~ly a small warning tiille 0: the adT\"ent of flooding is available. T~e tixe is as little as 2 hours and informa~ion would be provided froD a telema~k station Wigley Gorge. The nomination of a minimuD of 12 hours in the ~nterim policy is impossible to ach~eve; and the location of nearly al: counter disaster services lie within the la~d 1 , . 1 ~. ~l d' laD_e ~O ~ 00 lng. To gauge .the significance 0= :~ocds CI various return periods, information ~s available in Report 3/1980 prcduced bv the Water Division of the Departme~t 0: Works in April of I9BO.The report is titled IIAlice Springs Flood Study!!. Hydrograpts co~tained in ~he report define the dura~io~ or inundatior. in Alice Springs .