InfoDrainage 2021.1 Help Documentation infodrainage2021v1

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method_of_analysis_storage_estim_819
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Storage varies with different configurations of controls and Stormwater Controls (SWC). InfoDrainage will look at two extreme cases to provide an estimate of the range of storage required for the site. This estimate may be used as a starting point for detailed design but it must never be used as a final design as the variables it assumes are significant. In certain circumstances, it is also possible to achieve a final design outside the range shown.

Note
This option may not be available for your region. For more information, refer to the Regionalisation topic.

Input

This form allows you to input all the required fields for making the calculation.

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Safety Factor - Reduces the infiltration rate during the analysis to account for silting up or poor maintenance. This is required for the UK.

Note
This option may not be available for your region. For more information, refer to the Regionalisation topic.

Increase Rainfall  (User Input Data only)- This will scale all rainfall by the amount specified.  This can be used to take climate change, or other factors, into account. Input hydrograph flows are not scaled.

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