SR-8 terminates at its intersection with Bluff Street (SR-18), which continues south towards the historic downtown district of St.

[5] After the new alignment of I-15 was built south from St. George, old US-91 southwest of SR-18, including present SR-8, was removed from the state highway system in 1974.

[6] In 1991, the Utah Transportation Commission passed a resolution to create a new State Route 8, pending roadway improvements, which would absorb the entire length of SR-300, and continue south through Ivins on Center Street and 200 East and southeast on Santa Clara Drive and Sunset Boulevard (old US-91) back to SR-18.

Sunset Boulevard between SR-18 and Dixie Downs Road was so improved and added to the state highway system in 1996, and at that time SR-300 was renumbered as a second piece of SR-8.

As requested by the Utah Division of Parks and Recreation so they could carry out their resource management plan, the latter portion was removed from the state highway system in 1999, leaving only the present extent of SR-8.