Applications of this model include evaluations of general scour at bridge crossings, sediment delivery, channel responses to sand and gravel mining, channelization, etc. It has been applied to many designs for bank protection and grade-control structures which must extended below the potential channel bed scour and withstand the design flood. Because of the transient behavior in dynamic changes, ephemeral rivers require more complicated techniques in model formulation. Since changes in channel-bed profile is closely related to changes in width, these changes may not be separated. The change in bed profile in an erodible-bed model is assumed to be uniform in the erodible zone.
All points adjust up and down by an equal amount during aggradation and degradation.
Actual bed changes are by no means uniform and therefore they may not be simulated by an erodible-bed model. In reality, the bed topography is highly non-uniform in a curved channel, especially during a high flow. This means the model does not provide the extent of erosion in the channel, but the user has to inform the model about the erodible part of the channel bed. This requires the sediment rating curve which is usually not available for stream channels. An erodible-bed model may not be calibrated with field data of natural streams.