The 2011 Brisbane Floods: Causes, Impacts and Implications

On 13th January 2011 major flooding occurred throughout most of the Brisbane River catchment, most severely in Toowoomba and the Lockyer Creek catchment (where 23 people drowned), the Bremer River catchment and in Brisbane, the state capital of Queensland. Some 56,200 claims have been received by in...

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Main Authors: Robin C. van den Honert, John McAneney
Format: Article
Language:English
Published: MDPI AG 2011-12-01
Series:Water
Subjects:
Online Access:http://www.mdpi.com/2073-4441/3/4/1149/
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author Robin C. van den Honert
John McAneney
author_facet Robin C. van den Honert
John McAneney
author_sort Robin C. van den Honert
collection DOAJ
description On 13th January 2011 major flooding occurred throughout most of the Brisbane River catchment, most severely in Toowoomba and the Lockyer Creek catchment (where 23 people drowned), the Bremer River catchment and in Brisbane, the state capital of Queensland. Some 56,200 claims have been received by insurers with payouts totalling $2.55 billion. This paper backgrounds weather and climatic factors implicated in the flooding and the historical flood experience of Brisbane. We examine the time history of water releases from the Wivenhoe dam, which have been accused of aggravating damage downstream. The dam was built in response to even worse flooding in 1974 and now serves as Brisbane’s main water supply. In our analysis, the dam operators made sub-optimal decisions by neglecting forecasts of further rainfall and assuming a ‘no rainfall’ scenario. Questions have also been raised about the availability of insurance cover for riverine flood, and the Queensland government’s decision not to insure its infrastructure. These and other questions have led to Federal and State government inquiries. We argue that insurance is a form of risk transfer for the residual risk following risk management efforts and cannot in itself be a solution for poor land-use planning. With this in mind, we discuss the need for risk-related insurance premiums to encourage flood risk mitigating behaviours by all actors, and for transparency in the availability of flood maps. Examples of good flood risk management to arise from this flood are described.
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spelling doaj.art-cc89542e31714549a7f98263a7d68a762022-12-22T02:53:18ZengMDPI AGWater2073-44412011-12-01341149117310.3390/w3041149The 2011 Brisbane Floods: Causes, Impacts and ImplicationsRobin C. van den HonertJohn McAneneyOn 13th January 2011 major flooding occurred throughout most of the Brisbane River catchment, most severely in Toowoomba and the Lockyer Creek catchment (where 23 people drowned), the Bremer River catchment and in Brisbane, the state capital of Queensland. Some 56,200 claims have been received by insurers with payouts totalling $2.55 billion. This paper backgrounds weather and climatic factors implicated in the flooding and the historical flood experience of Brisbane. We examine the time history of water releases from the Wivenhoe dam, which have been accused of aggravating damage downstream. The dam was built in response to even worse flooding in 1974 and now serves as Brisbane’s main water supply. In our analysis, the dam operators made sub-optimal decisions by neglecting forecasts of further rainfall and assuming a ‘no rainfall’ scenario. Questions have also been raised about the availability of insurance cover for riverine flood, and the Queensland government’s decision not to insure its infrastructure. These and other questions have led to Federal and State government inquiries. We argue that insurance is a form of risk transfer for the residual risk following risk management efforts and cannot in itself be a solution for poor land-use planning. With this in mind, we discuss the need for risk-related insurance premiums to encourage flood risk mitigating behaviours by all actors, and for transparency in the availability of flood maps. Examples of good flood risk management to arise from this flood are described.http://www.mdpi.com/2073-4441/3/4/1149/floodBrisbane RiverJanuary 2011water release strategyflood risk managementinsuranceland use planning
spellingShingle Robin C. van den Honert
John McAneney
The 2011 Brisbane Floods: Causes, Impacts and Implications
Water
flood
Brisbane River
January 2011
water release strategy
flood risk management
insurance
land use planning
title The 2011 Brisbane Floods: Causes, Impacts and Implications
title_full The 2011 Brisbane Floods: Causes, Impacts and Implications
title_fullStr The 2011 Brisbane Floods: Causes, Impacts and Implications
title_full_unstemmed The 2011 Brisbane Floods: Causes, Impacts and Implications
title_short The 2011 Brisbane Floods: Causes, Impacts and Implications
title_sort 2011 brisbane floods causes impacts and implications
topic flood
Brisbane River
January 2011
water release strategy
flood risk management
insurance
land use planning
url http://www.mdpi.com/2073-4441/3/4/1149/
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