Will someone explain to me, in OC MD these days, how does this "beach replenishment" work? They pump sand from about a mile offshore, back onto the beach, to keep a less steep incline down the shore? Do they do this along the entire coast? Only certain areas? How often? And does it actually work? I just never really paid attention to the details of this, but its an interesting topic.

And also, if they were to stop this activity, what would be the impact in 10-15 years? And is this always BAD for surf?