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Simon Lang, Chriselyn Meneses, Kelly Maslin, Mark Arnold

It is now common practice for dam owners in Australia to take a risk based approach to managing the safety of their large dams. Some dam owners are also using risk based approaches to manage other significant assets. For example, Melbourne Water manage the safety of their retarding basins in a manner similar to their water supply dams.
Assessing the risks posed by retarding basins using methods developed for larger dams can raise challenges. For example, the Graham (1999) approach to estimating potential loss of life (PLL) is generally applied when estimating the consequences of dam failure. However, Graham (1999) may not be the most suitable model for estimating PLL downstream of structures with relatively low heights and storage volumes (e.g. retarding basins), given the characteristics of the case histories used to develop the method.
In this paper six potential methods for estimating PLL are tested on four retarding basins in Melbourne. The methods are Graham (1999), the new Reclamation Consequence Estimating Methodology (RCEM), the UK risk assessment for reservoir safety (RARS) method, a spreadsheet application of HEC-FIA 3.0, and empirical methods developed by Jonkman (2007) and Jonkman et al. (2009). Results from the methods are compared, and comment is made about which is most suitable.
Keywords: potential loss of life, dam safety, risk analysis, retarding basins.

Now showing 1–12 of 14 search results:

  • $15.00
    2015  Papers

    2015 – Estimating potential loss of life downstream of retarding basins

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    2015  Papers

    2015 – Towards consistency in potential loss of life estimates: Testing the new Reclamation Consequence Estimating Methodology

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  • $15.00
    2016  Papers

    2016 – Warning and Mobilization of Populations at Risk of Dam Failure

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  • $15.00
    2017  Papers

    2017 – Observations from Five Australian Applications of HEC-LifeSim to Estimate Potential Loss of Life from Dam Failure

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    2017  Papers

    2017 – Tailoring Consequence Assessments for Retarding Basins

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    2018  Papers

    2018 – Current Australian and International Practices for Dam Failure Consequence Assessments

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  • $15.00
    2019  Papers

    2019 – Estimating the Individual Risk From Dam Failure

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  • $250.00
    Video

    Dambreak & Consequences (September 2013) – MODULES 1-5 – Full Course

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    Video

    Dambreak & Consequences (September 2013) – MODULES 1-5 – Individual Modules

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  • $15.00
    2014  Papers

    2014 – Considerations for Flood Estimation of Water Retaining Structures in Urban Catchments

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    2013  Papers

    2013 – Development and application of a risk based approach to managing floods during construction

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  • $15.00
    2012  Papers

    2012 – Estimating potential loss of life from dam failure in the digital age

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  • $15.00
    2009  Papers

    2009 – Loss of Life Estimation for Dam Safety Risk Analysis

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  • $15.00
    2011  Papers

    2011 – Comparing methods for estimating loss of life from dambreak flooding for two Australian dams

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