You can "skew" the ground geometry using the "Input | Ground Geometry | Adjust Geometry" dialog. In this dialog, you can define the cosine of the skew angle as an adjustment factor for the left overbank, channel, and right overbank stationing, and RiverCAD will changing the stationing to account for this skew. However, presently we do not adjust the stationing of abutments, piers, ineffective flow areas, and roadway stationing. You will need to do that manually.
Please let me know if you have any further questions.
Sincerely,
Chris E. Maeder, M.S., P.E.
Senior Technical Engineer
chris.maeder@bossintl.com