It begins at I-45 in Hutchins as an arterial road named the South Central Expressway and intersects I-20 before entering Dallas.

Passing through South Dallas, SH 310 has an interchange with Loop 12, taking on the name of the S. M. Wright Freeway.

After intersecting a couple side roads just south of Elsie Faye Heggins Street, SH 310 becomes a full fledged freeway, having an interchange with the aforementioned arterial.

Continuing on, SH 310 has interchanges at Pine Street, Metropolitan Avenue, Pennsylvania Avenue, and Martin Luther King Jr. Boulevard before ending at an interchange with I-45, Cesar Chavez Boulevard, and the Good-Latimer Expressway near downtown Dallas.

[citation needed] The southbound Trinity River bridge is the original simple steel girder bridge from abutment to abutment while the northbound is newer and largely precast concrete - the only steel girders are the longer spans directly over the river.

[citation needed] Through southern Dallas, I-45 (also named the Julius Schepps Freeway) has replaced SH 310 as the through route.

However, as I-45 is completely elevated between downtown and the Trinity River, during freezing rain events it is virtually impassable, whereupon it is closed and traffic is diverted onto SH 310.

[1] On April 29, 2013, SH 310 was extended north from US 175 to I-45, replacing part of US 175, which was designated to be rerouted on a more direct route west to I-45.