If you select NO to Floodplain Data in the DAMBRK Project Description screen, all floodplain data that is defined at the cross-sections is ignored (not used) in the analysis. It does no conversion of the floodplain data.
Please contact me should you have any additional questions.
Sincerely,
Chris E. Maeder, M.S.
Senior Technical Engineer
chrism@bossintl.com