The highway our lot sits on begins and ends inside the county
The entire official route description for TX-321 is “From Dayton to Cleveland”, 20.285 certified miles, all of it inside Liberty County. Our lot is on that road. TX-105 runs concurrent with it along this stretch, which is why the same street carries both numbers.
TxDOT highway designation file, SH 321, Minute Order 016769 dated 10/30/1939