This is the premise for one of the ideas I have suggested that could bring an area of grass to Wishbone's home.
I have looked at other landscaping upgrades around the Zoo and suggested those as well. I show this one now as I was out shopping and saw this in a store, in the form of a small indoor patch for home bound pups. I was wow'ed as it was one idea I suggested, as an alternative to possibly having to break up concrete in order to bring grass to Wishbone's home.
My suggestion was of course larger scale than this puppy patch, but completely doable and probably the least costly. From my prospective, someone can build a platform that raises some inches above the ground, add a mesh base, soil and sod! presto, grass for Wishy!
The corner area opposite to his shelf den napping spot would be perfect. This size is decent, approximately a quarter the size of his floor space and similar to what was done at the Grizzly Grotto.
I suggest this raised option to counter two things Management may say in that the ground would have to be tore up and/or there would need to be a draining system in case he pottied on it. I illustrate just how this saves on tearing up the ground and if he did potty on it, it could easily be rinsed down and waste would flow from under the platform.
You can view the doggy patch ad here:
https://www.pottypatch.com/default.aspx?id=&refcode=1002
UPDATE 12.8.11
Please view the video on the last post projectgetwishbonegrass.blogspot.com
If you support this crusade, please email San Francisco Zoo Director Tanya Peterson - tanyap@sfzoo.org