The Dam Properties dialog (from Edit Parameters of the SMPDBK menu) is used to set several options which describe the dam. This dialog is pictured below.
Data for this dialog can be collected by searching for the data on the Internet. Data could also be obtained from the National Inventory of Dams web site at http://crunch.tec.army.mil/nid/webpages/nid.cfm (2004).
Related Topics:
Simplified Dam-Break Analysis
Running a Simulation