A structure inventory is imported using a point shapefile, where the attribute table must have the following attributes: unique ID, dollar-denominated structure value, occupancy type, and either both foundation height and ground elevation or just the first floor elevation. Identify whether first floor elevation or foundation height will be used, and if foundation height, identify whether the ground elevations will come from the structure inventory or a terrain file. Select optional attributes and identify what occupancy type names in the structure inventory correspond to which occupancy types in the study database. 

To import a structure inventory:

  1. Right-click on Structure Inventories under Economics in the Study Tree and select Import From Shapefile.
    Structure Inventories - Import From Shapefile shortcut menu command.
  2. Give the imported inventory a useful Name and Description (optional, but recommended).
  3. Identify the path of the shapefile. From the Structure Inventory Shapefile box, click the browser ellipse button to navigate to the appropriate point shapefile and click Open.
  4. From the Required Attributes panel, select the first floor elevation source:
    1. First Floor Elevation – Select this option if the shapefile contains an attribute with the structure first floor elevation. When selected a First Floor Elevation required attribute dropdown list will be provided below the Structure ID and Occupancy Type dropdown lists.
    2. Ground Elevation and Foundation Height – Select this option to have the first floor elevation calculated from the structure ground elevation and foundation height. Selecting this option requires users to select the Ground Elevation Source either from an imported terrain file or from the selected structure inventory shapefile. 

      Economics FDA icon HEC-FDA will notify users if the required attributes have not been selected in the import wizard (e.g., Structure ID was left blank), or if a terrain file has not been imported and the From Terrain File is selected. 

  5. Identify required attributes and any optional attributes.
    Import Structure Inventory, identify structure attributes, first window example.
  6. Click Next.
  7. The next window requires users to identify the occupancy types for the structures. Select source of occupancy types (e.g., NSIOccTypes MuncieOccTypes), and match imported occupancy types to occupancy types in the structure inventory.
    Import Structure Inventory, identify occupancy types, finish window example.
  8. Click Finish.

Duplicates Not Needed

  1. If a given study data item is the same for multiple project conditions, then that study data item need not be duplicated. For example, assume that you have a flow-frequency function for the existing condition of a given impact area, but the flow-frequency function is also representative of the hydrologic conditions of the future-without project condition, and all with-project conditions. In that case, create one frequency function, and select the same frequency function for each of the Scenarios. 
  2. Except for terrain and the set of impact areas, many items can be created for a given study data element. For example, multiple structure inventories can be imported.