I would say that the amount of gravel isn't going to significantly do anything for the river. It's the ways and areas in which you extract it that have the ability to control flood issues. That's what the engineers have all worked on—along with the Department of Fisheries with regard to the protection of habitat—to try to achieve the areas that they feel are most attractive to that concept.
On October 19th, 2006. See this statement in context.