This is pretty weird because it's actually on the map yet we can't access it. It's in Callahan industrial near the docks. And sorry about the quality, this was taken from my ipod. The first picture is supposedly the entrance to that area but it's been blocked off. Pic #2 is what that area looks like from the outside. If you have this game on the PC feel free to use cam hack and post what this area looks like from the inside.
Maybe its unfinished because its out of view for the players if you look from accessable areas without cam hacks? The same thing is done to roads and train tracks in like all NFS and sure other games cause why does it have to be finished if no one can see it and its a game.