The contractor is about to make a major change to the traffic flow on Highway 169 through the Bird Creek construction zone.
The big change will begin on the night of Friday, May 13, 2016.
The Oklahoma Department of Transportation is overseeing a $45 million project to replace eight bridges - four in each direction - including 56th Street North, Bird Creek and a Bird Creek overflow area and 66th Street North.
The contractor has finished building all four new bridges for southbound traffic, so this weekend it will move both northbound and southbound traffic onto those new bridges. They're big enough to handle two lanes of traffic in each direction.
The change is scheduled to be finished in time for Monday morning's rush-hour traffic.
For months, northbound traffic has been using the outside lanes of the partially-constructed new northbound bridges at Bird Creek, but after this weekend those lanes will be closed for months.
The next step will be to demolish the old box truss bridge over the creek. It was originally built to carry northbound traffic, but has been carrying southbound traffic for several months while the brand new southbound bridges were finished.
When the project is complete, scheduled for early 2017, Highway 169 will be six lanes wide to the railroad bridge just south of 76th Street.