The yellow Tbolt which 2001srnfan mentions is atop Mary Walker Towers. I believe this is a public housing complex. I'd seen the siren 100s of times on trips through Chattanooga. During a visit a few years ago I drove past this building, so go the name of it. Complex isn't too far from Lookout Mtn.
I'd like to know where the grey Tbolt along the interestate is. Is it along I-24 or I-75..if anybody knows, I'd like to know just where it is. Even if it's not working it would be interesting to check out on my upcoming trip to Atlanta in October.
I was in part of downtown area back in '03, but didn't notice any sirens there.
Maybe they weren't in that particular area.