29th Street at Columbus has been getting a mural makeover for the past two years. (If you haven't seen it recently, there are photos in our March 14th entry.)
The Tucson Arts Brigade press release says that the project is almost done. The unveiling celebration will be Wednesday, May 9th, from 3:30 to 6:30 PM. See you there!
Update (May 15, 2012): I missed the celebration. Here's a news report and some new photos of the overpass from TucsonNewsNow.com (KOLD/KMSB): Murals showcase Tucson talent, fight tagging.