Territory Stories

Inquiry into the Alice Springs Recreation Lake : submission by Department of Transport and Works

Details:

Title

Inquiry into the Alice Springs Recreation Lake : submission by Department of Transport and Works

Creator

Marquardt, A.

Collection

E-Publications; E-Books; PublicationNT; Report ; 1/1983

Date

1983-12-01

Description

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

Notes

Date:1983-12; Contains: Floodplains Management Alice Springs Impacts of Todd River Flooding. Also filed in Alice miscellansous collection A0342, A0343.

Language

English

Publisher name

Dept. of Transport and Works

Place of publication

Darwin

Series

Report ; 1/1983

File type

application/pdf.

Copyright owner

Check within Publication or with content Publisher.

Parent handle

https://hdl.handle.net/10070/228164

Citation address

https://hdl.handle.net/10070/674502

Page content

Technical Report WRD83001 Viewed at 14:07:22 on 29/07/2010 Page 24 of 64. 5 PYBERINGE This second site on Jay Creek is set iD- majestic raD-ere country and for this reason d!:"ew considerable attention in early studies. Hm"ever, it was rej ected as an option for the reasons given below. (a) Hydrology While the site offers a large poteD-tial storage, the catchment area is only 166 square kilometres and annual runoff is therefore expected to be less than most other sites under consideration. Hence, to create a realistic size recreation lake and minimise variation in size from year to year, it would be desirable to build a lower dam than the site conveniently allows. Unless the maximum size of the lake were only 60 hectares or so, the variati~n in size would be inferior to other sites. Hore berlefit is offeree. by the site in respect of a possible future water supply storage, harnessing most ~f the available runor:;: (French, 1973, found that the dam would rarely fill) but varying considerably in size according to the seaSOD-s. French found that although the hectares, the size which would 'time would only be 4.8 hectares. maximu:'P. size .... lould be exceeded. for 90% be of 360 the Recreat~on Potential ;;;':;;lO,c(~es s to the I"a ters edge woulC!. be very limited because 0 f rugged surrounding topography. 'size of the lake offered, whether a hioh or low '0"'''- bui It, woulC!. usually be smaller t-han the tion site. Site geology level dam Telegraph ~~t~~~~~;t.~~:n,~~~ geological appraisal revealed ~ leakage problems ,,/hich woulC!. the likelihood of require thorough .~,"v~stigation and grouting. Dru~ and spillway options ~indicated, it would be desirable to const=uct a dam at a 1 lower than the site conveniently allows. There being :suitable spillway saC!.dle for such-a level, it would be ary to adopt a concrete dam encorporating a spillway. to examine the possibility of fou~d that the amount of deepening the spillway excavation l'lOuld be


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