 Monday. Contractors will be doing major work on the U.S. 35 bridge over Dayton Xenia Road near 675. The westbound lanes of 35 will be closed, but traffic will be rerouted into two lanes. WHIO's Ron Otto reporting. A crash shut down part of I-75 Friday afternoon. Care Flight was called and took someone to the hospital with serious injuries. The crash involving a semi happened in Troy just north of State Route 41. We are working to learn how the person who was flown to the hospital is doing.