http://www.slidethecity.com/events/oklahoma-city/

Has anybody seen this?

If they do it downtown somewhere, I'll go for a slide.

Wasn't there something like this in Deep Deuce last summer?

It wasn't on this level. The deep deuce one was a platform and slide that was constructed out of wood and then tarped.

This thing is supposed to be a closure of roads type of event. (My guess would be the Walnut/MickeyMantel bridge.