This was from the last commission meeting:

Multiple Counties – Districts III and VIl (CI-2379)

The Department has selected EST. Inc. to provide preliminary engineering for I-35: from Ladd Road to Mile Marker 7. Services to include preliminary engineering studies.

CI-2379 EST, Inc.
Total Not to Exceed Amount $2,000,000.00
That’s basically from Goldsby to MM 7 near Marietta. ODOT has really been ramping up the fact I-35 needs more capacity not only just from I-40 to Norman(which will hopefully be another widening to make the freeway at least 12-14 lanes) but from the Canadian River to the Texas state line in southern Oklahoma. So it looks like we may finally get a plan to six lane I-35 which along with Texas’s plans would ensure a minimum of 3 lanes each way from OKC to Dallas, SA, or Houston. I’m very excited for this news.

Keep in mind ODOT has already started a project to widen I-35 from 6-8 lanes from Thackerville to Red River Bridges which will be modified and/or replaced. There’s another project coming up soon to extend that widening to MM 7 later this decade.