If you had a chance to see or watch the AEC Keynote Presentation at Autodesk University, you might have been excited to see some of the bridge modeling tools for Revit Structure. If you missed the presentation, it is available for viewing. Get the link to watch the AEC Keynote here.
Scott Hammond will be doing a webcast on these tools on January 27, 2009 at 10AM PST.
Also note there are some great archived webcasts listed at that link including:
Getting Up and Going with Revit Structure 2009: From Pilot to Production
Revit Structure Best Practices: Concrete Structures
Revit Structure Best Practices: Steel Structures
Revit Structure and AutoCAD: Which tool is right for you?
Revit Structure: Analysis Showcase