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|width = 210px|Berm height (mm)
|width = 210px|Berm height (mm)
|Sometimes referred to as the bowl depth or ponding depth (e.g. 300 mm)
|Ponding depth, maximum (e.g. 300 mm), sometimes referred to as 'bowl depth'
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|Surface roughness (Manning’s n)
|Surface roughness (Manning’s n)
|Suggested value 0.03 <ref name = SWMM/>
|Suggested value 0.03 <ref name = SWMM/>
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|Hydraulic Conductivity (mm/hr)
|Hydraulic conductivity (mm/hr)
|Suggested range 25 – 250 mm/hr
|Suggested range 25 – 250 mm/hr
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|Design [[drainage time]] (hrs)
|Design [[drainage time]] (hrs)
|Time to fully drain the storage reservoir.
|Maximum permissible time to fully drain the storage reservoir.
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!colspan = "2" align = center"|'''Drain (underdrain)'''
!colspan = "2" align = center"|'''Drain (underdrain)'''