It's signed as Turner Diagonal, per GMSV.
I think that it would end at KS32, as signage at the 59th St Lane intersection just says "K-32 HWY" instead of Turner Diagonal.
Per the weird interchange, the part north of the northernmost part of the interchange (if that makes sense) is signed as College Parkway, and the Turner Diagonal (Turner Diag per signage) only goes south from there.