NorthGate Constructors officials are reporting the project to widen the SH 121/I-635 interchange is 50% complete. Crews have recently opened the new northbound SH 26 to northbound SH 121 direct connector, along with the new southbound SH 121 to eastbound I-635 direct connector. The new northbound SH 121 auxiliary lanes will open to traffic in mid-December, weather permitting. This would mark a major construction milestone, NorthGate Constructors spokesperson Maria Woodrow said. There will be no lane closures during the holidays, she said.

Timeline: August 2018-2022

Cost: $370 million

Funding source: Texas Department of Transportation