 Unlike for most of portions of I-70 within the I-465 beltway, several inner sections of I-65 were built throughout the overall project lifespan.However, the final three segments from the south side through the heart of the city, including the common portion of I-65 and I-70 (east leg of the "Inner Belt"), were not finished and opened to traffic until around 1974.Prior to 2004, the interchange from the Indiana Toll Road to southbound I-65 required making a physical left turn onto I-65 via a traffic signal; traffic from northbound I-65 to I-90 bypassed the traffic signal via an isolated right-turn lane.