Import HEC-RAS Breach Locations

When an HEC-WAT simulation contains a RAS model alternative (plan) that includes structure breach data, the user can import HEC-RAS breach locations as fragility CCPs. From the HEC-WAT main window (Figure 17.4), from the Edit menu, point to RAS, click Import Breach Locations. The Import Levee Breach Locations dialog box will open (Figure 17.10).

Figure 17.10 Import Breach Locations Dialog Box
1.From the RAS Plan list (Figure 17.10) select the RAS plan (model alternative) that contains the breach locations which should be imported.
2.The table (Figure 17.10) lists all of the defined breach locations (all lateral structures with breaching turned on) in the selected RAS plan (model alternative). From the table, the user can select individual breach locations from the Import column (Figure 17.10) by clicking the check box. The user can also change the stream station of the breach location from the Stream Station (Figure 17.10) column and change the name of the CCP from the CCP Name column (Figure 17.10).
3.The user can select all known breach locations (Select All) or clear the selections in the table (Select None). If fragility curve CCPs already exist, the user can replace by selecting Replace Existing CCPs (Figure 17.10).
4.Click OK, the Import Levee Breach Locations dialog box will close (Figure 17.10). The HEC-RAS breach locations will be imported as fragility CCPs in the HEC-WAT study. Please note that the import process only adds a geographic data layer based on the geographic coordinates of the breach locations. There is no data linking (i.e., fragility curve input) when importing fragility curve CCPs.
5. Optionally, the user can associate the fragility CCPS with levees or other structures that may have been created for the HEC-WAT study. However, this is not a requirement.