SWMM - Curves - Weir Curves

Describe the variation of the Weir coefficient as a function of load in SWMM Weirs

It is assigned to a Weir of the SWMM when the Constructor (gravity linear) of device associates this to tool Weir

Can also be attributed to Weir with a control rule

A Weir Curve has the following properties:

• Identification
  • Description - Use a friendly description when the item name is not enough
  • Name - name of the item
    Avoid names that are too long, or that contain the following characters: '*', '>', '<', '/', '\', '"', ':', ';', '|', '=', '`', '#', ',', '?'
  • Priority - Information about the current state of the item. It might be:
    • Neutral: no problem
    • Critical: Some issue that prevents the item from being calculated or used

The data is populated in the table and plotted on the graph for better visualization:

The load values must be in ascending order and not repeating and cannot be negative, otherwise the Priority property will be as Critical