The works on the I820/IH 35W interchange include two new direct connectors in an already very structure-congested area that allow access to new Managed Lanes for traffic flowing from IH35 W to I820 WB and from I820 EB to I35W. Additionally, 9 minor bridges spanning over Mark IV Parkway and Little Fossil creek had to be replaced by new bridges with phased construction.

FHECOR was responsible for the detailed design of the structures (EOR), layout and drainage as well as MOT.