I-44/US-75 'traffic henge' interchange ceremonial groundbreaking happening Wednesday

A ceremonial groundbreaking for the next phase of the I-44 and Highway 75 interchange project, also known as "Traffic henge" or "Tulsa Stonehenge," is happening Wednesday.

Construction actually began on April 7th, but today's ceremony will feature Sen. James Lankford and Tulsa Mayor Monroe Nichols.

>>> Construction to resume on I-44/US-75 'Traffic Henge' interchange in Tulsa

The ceremony will take place near 51st and Union Avenue, the northwest corner of the interchange, at 2:30 p.m.

Both Sen. Lankford and Mayor Nichols are expected to speak, as well as Tulsa County Commissioner Lonnie Sims and ODOT Executive Director Tim Gatz.

Project Scope and Improvements

This project, the most expensive contract awarded by the Oklahoma Department of Transportation (ODOT) to date, will complete the I-44/US-75 interchange reconfiguration. Improvements include:

1. Widening US-75 between 71st Street and 41st Street
2. Replacing the US-75 interchange at 61st Street
3. Adding a new frontage road between 61st Street and Skelly Drive
4. Extending and connecting 51st Street under US-75
5. Constructing a pedestrian bridge over the railroad near Elwood Avenue

The $252 million project is expected to be completed in 2028.