Overflow route from a detention basin or headwall

Overflow route from a detention basin or headwall

For this situation, the Overflow Route property sheet must contain the required information for an overflow route from a pit, plus information about the high-level outlet of the basin or the surface overflow from the headwall. This can be in the form of parameters for a weir equation (weir coefficient, width and threshold level), or an elevation vs discharge relationship, to be entered as a table. There are three pages in this property sheet.

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