Construction has been completed on the Olive and Lindbergh interchange reconfiguration project to turn the existing cloverleaf interchange into a folded diamond interchange, which will move commuter traffic more efficiently and offer full connectivity for cars, bikes, and pedestrians. This project was funded by $4 million of federal transportation funding to design and construct the new interchange, a $1 million match from St. Louis County Transportation and $250,000 of funding from the City of Creve Coeur.

The Olive and Lindbergh interchange reconfiguration was one of the significant transformative projects planned to implement the bold vision of the 39 North Innovation District, a 600-acre global hub for plant and life sciences located in Creve Coeur.

The 39N Master plan recommended that the existing interchange be reconfigured into a fold diamond design to eliminate the circular ramps on the north side of the interchange and serve all movements of traffic.  Coupled with the Old Olive Street Road redesign into a “Great Street” offering full connectivity for cars, bikes, and people, the new folded diamond interchange design will more efficiently move commuter traffic and eliminate a barrier for people wishing to easily access the amenities in the 39N district.

Another benefit of the new Olive/Lindbergh interchange redesign is that it will free up property, formerly used for right of way, that could be used in the future for economic development.

MODOT owns both roads and will continue to operate the new intersection.