For every column in the pier at least two cross-sections must be specified. To enter the first column, input the values in the Loc from Left of Cap, Bot. Elev, and Width fields. Click Add to add the column to the list. Substructure will calculate the value in the Top Elev field, which is the location where the top of the column intersects the pier cap centerline, using the information provided in the Cap Parameters screen.

To add sections to the columns enter the Distance From Last field and if desired, a new value in the Width field and select either linear or parabolic variation. Click Add. The new column segment will appear in the list. Add other segments if needed. Then add other columns in the pier in the same way. When all columns are entered click OK.

To modify a column, select it and change the parameters as desired. Click Modify to apply the changes.

For multiple columns, to show only the current column on the screen, select the "Show current column location only" check box.