State Highway 308 (SH 308) or College Avenue, runs from FM 60 (University Drive) in College Station north to Sulphur Springs Road in Bryan.

SH 308 begins at a junction with FM 60 (University Drive) and Bizzell Street in College Station.

It follows College Avenue until it reaches its northern terminus at Sulphur Springs Road in Bryan.

[3] On August 1, 1941, the on-campus routing was changed to Bizzell Street, and on September 7, 1943, the highway was extended north to its current terminus.

On January 31, 1961, the portion south of FM 60, including the on-campus portion, was removed from the highway, leaving it in its current, truncated state.