Denver police have shut down West 29th Avenue from Zuni Street to Umatilla Street and the area around 15th and Platt streets because of a water main break.
That means you should avoid those areas all together. Police have helpfully demonstrated why on Twitter.
Update, 1:30 p.m.: Denver Water says crews have found the break and are working to shut water off.
Update, 3:40 p.m.: Denver Water now says the water is "nearly off" and that West 29th Avenue will be closed between Zuni and Umatilla streets until Sunday afternoon.