That component of the now-delayed interchange redesign has been criticized by Gov. The original agreement for improvements to a State Highway 9 and Interstate 35 interchange included construction of a flyover ramp from I-35 to a new roundabout that would connect to the Chickasaw Nation’s Riverwind Casino parking lot, a document obtained from the Oklahoma Department of Transportation shows. ( Update: On Monday, May 3, the Oklahoma Transportation Commission voted 2-7 against both Item 69 and Item 70, as detailed in the article below.)