Tiger Tundra received a 5-month renovation and re-opened to the public in 2008. I'm not sure when the original exhibit was built, but here are all the stats and facts from the "makeover":
We absolutely love this tiger exhibit,There is a little bit more lower terrain located outside the picture here.These Amur Tigers also seem to have taken well to this exhibit as they have been very active on nearly every one of our recent visits including swimming on several occasions.