Interstate 74 (I-74) in the US state of Ohio runs for 19.47 miles (31.33 km) southeast from the Indiana border to the western segment's current eastern terminus at I-75 just north of Downtown Cincinnati.

The Ohio portion of I-74 begins on the Indiana border near Harrison and travels east.

It then overlaps with that beltway route, heading generally east for approximately four miles (6.4 km) before splitting from I-275 to continue southeast into Cincinnati.

They include: The second route was eliminated due to opposition regarding a key part of its completion: a $366.2-million highway that would need to be constructed near Mariemont and Newtown (terminuses: Red Bank Road/Wooster Pike intersection and Bells Lane).

This problem could be resolved through Congress if they wanted to designate the Norwood Lateral as a future segment of the Interstate Highway System.