SH 56 begins at an intersection with US 82 just outside of Whitesboro. The highway then enters Whitesboro with indirect access to US 377. SH 56 next travels through Southmayd, where it meets SH 289, before entering Sherman.
SH 56 begins at an intersection with US 82 just outside of Whitesboro. It then enters Whitesboro via indirect access to US 377. After that, SH 56 passes through Southmayd and intersects with SH 289 before entering Sherman.