It’s been closed for four months, but is open to traffic weeks earlier than expected. It had to be completely rebuilt after flooding destroyed the concrete and the roadbed.
Omaha World-Herald story here. Best quote, though, is from KETV/AP and Council Bluffs Mayor Tom Hanafan: “This is the first submerged interstate I know of that was destroyed by a flood. It was the first that was repaired in record time. And last of all, it’s probably the first that will open today and have snow plows on it tonight.”
The DOT has a website of photo galleries. It does not appear that photos are available for individual viewing. There’s also a standalone time-lapse video of I-680 reconstruction. The most interesting/amusing thing: Some of the signs along the road stayed in place the whole time. Even the simple “merge” sign was there until nearly the end.