SR 745 commences at the signalized intersection between the concurrent US 33 and SR 161 and High Street in Dublin. Running north from there, the two-lane state highway passes through a residential portion of the northwestern Columbus suburb.
SR 745 begins at the signalized intersection where US 33 and SR 161 meet High Street in Dublin. It runs northward from there, a two-lane state highway that traverses a residential area of the northwest Columbus suburb.