Dear Julie :
Note that there are 2 layers containing this data:
BOSS_FLOW_CL - channel flow length line
BOSS_FLOWLEN - overbank flow length lines
These 2 layers are "OFF" by default. If you turn these layers "ON" from within the Layer Manager you will be able to see the reach lengths that you have defined.
If you have any additional questions or need any further information, please contact me again.
Sincerely,
Chris E. Maeder, M.S.
Senior Technical Engineer
chris.maeder@bossintl.com