SMS:SRH-2D Pressure Flow with 3D Bridges Workflow

To create a pressure flow structure using 3D bridges in an SRH-2D model, use the following steps:

1. Create 3D bridge arcs.
See the 3D Bridge workflow for instructions on how to do this.

2. Copy bridge arcs to the SRH-2D boundary conditions coverage.
Using the Select Feature Arc tool, select both bridge arcs. Right-click and select Copy to Coverage. In the Select Coverage dialog, select the SRH-2D boundary condition coverage that will be used in the SRH-2D simulation.

3. Create a link structure.
Using the Select Feature Arc tool, select both bridge arcs in the BC coverage. Right-click and select the Assign Linear BC... command. In the SRH-2D Linear BC dialog, assign the link boundary conditions specifying the link inflow as a "weir".

4. Include the 3D bridge in the simulation.
Right-click on the simulation and select the Model Control command. Set the model parameters in the SRH-2D Model Control dialog to include using a ceiling file and the 3D bridge.