Griffin Road drainage diversion – feasibility study

Burton, Bruce (2009) Griffin Road drainage diversion – feasibility study. [USQ Project] (Unpublished)

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Abstract

This dissertation assesses the feasibility of a proposal to redivert a portion of flood waters from the Griffin Road Catchment, back to the traditional Spring Creek catchment, to relieve flooding of the Kennedy Highway and residences in Tolga, Far North Queensland. The traditional Spring Creek catchment is currently severed by Griffin Road. The flows to the South of Griffin Road, instead of crossing at this point, are diverted along Griffin Road towards Tolga. It is proposed to utilise an existing drain half way up Griffin Road, which is currently disused to divert a portion of the traditional flows, currently severed, to the North back into Spring Creek, hence reducing the flows into Tolga. The existing drain will require earthworks to the upstream end to ensure drainage capacity to a Q100 level, along with a detention basin constructed on Spring Creek to limit peak flows to their current level, hence reducing the risk of flooding or erosion downstream. Prior to flows being diverted an isolated area of erosion would need to be stabilised. The proposal was conveyed to residents living adjacent to the proposed flow path to assess their response. Nearly all residents strong agreed with the proposal, with no objections raised. Finally the proposal was costed to $353,500.00; with support of Government funding or grants the proposal would be possible From the study undertaken is has been shown that the proposal in its current form is feasible and more detailed design and analysis could now proceed


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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 23 Jul 2010 01:45
Last Modified: 23 Jul 2010 01:52
Uncontrolled Keywords: drainage; flood water diversion
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering
URI: http://eprints.usq.edu.au/id/eprint/8500

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