When ABC (Create/Edit Bridge) is grayed out and you want to change the span length you will need to open Precast/Prestressed module and change it in the Geometry tab. If the bridge is along a curved alignment click on Layout and change the station…

The Span Type offers multiple choices to select from: Simple Span: The Simple Span option allows you to specify information for only one span at a time. Multi Span (continuous): The Multi Span (continuous) option should only be selected if the live…