Correct.IIRC, it's I-65.
Walsh had some land in the family where he could have rebuilt the 6 tower array, but Zionsville refused to re-zone the land. I'm not an engineer, but I'm thinking the best Walsh or anyone else could do would be something like 10k day, flea power at night. Not sure it would be worth it.
There's a reason Emmis moved WIBC to FM. There were upscale suburbs excluded from the night pattern.