At one point I heard the friends of Bettendorf parks of the Bettendorf city parks program mention something like this. I tried to do a quick search but no luck. I sent these folks an email a year or so ago suggesting such a project. I never recieved a response or put more time into it.

http://www.friendsofbettendorfparks.com/node/5

I think it would be awesome to have such a facility.