A lot of that would depend on where your wharf is situated. In our area, and maybe even the Greenpoint area, a lot of the places are rock, and if the whole thing is dredged well, you only have to dredge once every 20 years. Our wharf was dredged probably 30 years ago or more, but we only have so much silt in there because all the outside of our wharf is rock; it's not mud. There is silt and stuff that accumulates over 30 years or more, but in some places there's a lot of sand outside, and that comes in.
On April 18th, 2008. See this statement in context.