Which berm are you thinking about cutting? I would not cut the underwater berm. That would act as a funnel and speed-up the water flow taking sand with it. The purpose of the berm is to let water go over it while the sand settles out in place behind the berm.
If you are talking about only during construction as an aid, then that might be different.
Last edited by ewest; 03/17/22 12:56 PM.