Optionally, specify levees with a top of levee elevation minimally. Ideally, select user-defined and enter a system response curve in stages and failure probabilities. To create new lateral structure:

  1. From the Study Tree, right-click Lateral Structures and select the create new option. 
    Lateral Structures shortcut command options for creating or importing relationships.
  2. Give the levee a useful Name and Description (optional, but recommended). 

    Lateral Structure IconLateral Structure Failure Function IconWhen naming lateral structures it is recommended to include the impact area in the name. For example, "Left-bank" is included in the name for the levee in the example below because the levee in the Example Study Data is in the left-bank impact area.

  3. Specify the Top of Levee Elevation.
  4. The System Response Curve is set to Default. Alternatively, select User Defined and enter the failure function to specify the probability of breach for each stage. 
    Create New Lateral Structure dialog with the User Defined option selected and displaying an example geotechnical failure system response curve.
  5. Click Save and Close to add the lateral structure.