There are significant roadway projects in Illinois and Missouri that are part of the New Mississippi River Bridge project.
The new Mississippi River Bridge project helps reduce congestion and increase safety on the Poplar Street Bridge by removing I-70 from the PSB. Currently, the PSB carries three interstates. Once I-70 has relocated to the new bridge, several improvements may be made to the PSB to improve the flow of traffic between the PSB and I-55.
Missouri North I-70 Interchange
The Missouri North I-70 interchange connects the New Mississippi River Bridge with the existing I-70 roadway as well as downtown St. Louis. Current plans for the interchange include providing access from the interchange to a future Tucker Avenue improvement completed by St. Louis City and funded by the American Reinvestment and Recovery Act (economic stimulus) money.
Illinois I-70 Connection
This road connects the Tri-Level Interchange (where I-64, I-70 and I-55 merge) with the Mississippi River Bridge. When the bridge is complete, I-70 will move to this roadway and cross over the new bridge. Although not part of the MRB Project, a Route 3 interchange is planned for construction with funding from Illinois Jobs Now!.
Illinois Tri-Level Interchange
The Tri-Level Interchange is where I-64 and I-70/I-55 merge. Currently, the three interstates merge and then cross over the Poplar Street Bridge. In preparation for the I-70 Connection, this merge area will see many improvements, including new ramps to and from the new bridge.