Software & Tools

RMC Risk Calculations Suite

The U.S. Army Corps of Engineers (USACE) Risk Management Center (RMC) developed a set of toolboxes to help dam and levee safety risk assessors calculate dam and levee risks, assess probabilities for event combinations and joint loadings, and assess the effectiveness and efficiency of risk reduction for an array of risk management plans.

NOTE: After downloading a file containing Visual Basic for Applications (VBA), users may need to unblock the file to enable all features to function properly. After downloading, right-click the downloaded filename, select ‘Properties’ in the contextual menu, left-click on the check box for ‘Unblock’ under ‘Security’ on the 'General' tab, and left-click on 'Apply' or 'OK' to finish.
RMC-SQRAcalcs
 
RMC Event Combination Toolbox
 
RMC Joint-Loading Probability (Dams) Toolbox
 
RMC Risk Management Plans Toolbox
  
RMC Event Tree Toolbox
The spreadsheet tools contained in this toolbox assess the total incremental risk from a semi-quantitative risk analysis, non-breach risk for dams and overtopping incremental and non-breach risk for levees using a simplified quantitative risk analysis (SQRA), and the total mean annual probability of inundation of the leveed area to inform the National Flood Insurance Program (NFIP) accreditation recommendation.  

The spreadsheet tools contained in this toolbox assess the probability of failure associated with multiple gates, the probability of a flood prior to completion of repairs following a breach, the joint occurrence of earthquake and flood events using the binomial discrete approximation (Hynes-Griffin 1980) and exponential continuous form (Ellingwood 1995), and the joint occurence of other events using the exponential continuous form (Ellingwood 1995).

  

The spreadsheet tools contained in this toolbox perform a risk screening based on the joint-loading probability of an earthquake and coincident reservoir level based on the seismic hazard, stage-duration, and consequence relationships and assuming the conditional probability of failure given the joint loading is unity.

  

The spreadsheet tools contained in this toolbox quantitatively assess the effectiveness and efficiency of risk-reduction for an array of risk management plans, including as low as reasonably practicable (ALARP) considerations, to help risk-informed decision making.

   This toolbox generates a standard format sub-event tree or project event tree based on user-specified input.
 
This is the RMC Event Tree Toolbox version 3.0.
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A database of typical sub-event trees for common potential failure modes evaluated during dam and levee safety risk analysis has been developed using the RMC Event Tree Toolbox. The typical sub-event trees in the database should be used for reference and updated as needed to fit project-specific conditions.

RMC-SQRAcalcs version 1.6.

  

This is the RMC Event Combination Toolbox version 1.0.

   This is the RMC Joint-Loading Probability (Dams) Toolbox version 1.2.   This is the RMC Risk Management Plans Toolbox version 1.1.   This is a typical event tree database version 1.3.
 
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