The I-75 Northbound exit ramp to West Main Street (Exit 74) in Troy, Ohio, will close overnight on Sunday, April 19, 2026, and remain closed until late summer 2026. This closure is due to the I-75 North/SR 41 interchange project to improve safety and traffic flow, with detours directed to Exit 78 (County Road 25A) This is a bummer for us. Here is another route coming from the north as well. detour is to continue north to County Road 25-A (exit 78) and take I-75 south back to the southbound exit ramp. Rhoades said the city is expecting to see an increase in traffic coming off the northbound exit 73 ramp from I-75 to Ohio Route 55 (West Market Street) and on Dorset Road, which runs between West Market and West Main.
