The northern terminus of Loop 323 is at
US 271 and
SH 155 northeast of Tyler. From there, Loop 323 travels south, intersecting its own "southern" terminus after . Continuing south, it intersects
SH 31,
Loop 124 and
SH 64 on the east side of Tyler; then, traveling southwest, it crosses
SH 110. Shifting to a westward direction, it crosses
US 69 and
FM 2493 south of town, and
SH 155 southwest of Tyler. Now heading north, it intersects with
Spur 364 and crosses SH 31, SH 64, and SH 110 for the second time each, before turning northeast and intersecting US 69 again. Approaching northeastern Tyler, Loop 323 crosses
US 271 southwest of their previous intersection, and continues east another where it ends at its intersection with itself. ==Junction list==