Here are the numbers for private property acquisition as of May 2010, the most recent I could find, per a report by the contractor, as linked to by the Louisiana Department of Administration:
25 closings completed out of 194 total parcels to acquire.
10 closings completed out of 245 parcels to acquire.
If anyone has more up to date figures, I would like to see them. But it seems there's still a rather long way to go.