SR 315 begins at an intersection with SR 219 in Piney Grove, in rural southwestern Harris County. At this intersection, the roadway continues to the southwest as Goat Rock Road. SR 315 travels to the northeast and immediately curves to the north-northeast. It curves back to the northeast to an interchange with Interstate 185 (I-185; Chet Atkins Parkway). The route then gradually curves to a roughly eastward direction, traveling through Mulberry Grove. After that, it curves to the south, to a very brief concurrency with US 27/SR 1 in Cataula. East of town, at the intersection with the southern terminus of Lynn Drive and the southwestern terminus of Denney Road, next to Clowers Cemetery, SR 315 turns right and travels to the south-southeast. Southwest of Ellerslie, the highway intersects the northern terminus of Old Warm Springs Road. It turns left onto Warm Springs Road and travels north-northeast for approximately 400 feet (120 m). It curves to the northeast and then to the east-southeast and intersects US 27 Alt./SR 85 (Manchester Expressway). The three highways travel concurrently to the north-northeast and enter Ellerslie. At the intersection with Talbotton Road, the highway turns right, to the southeast, and very gradually curves to the northeast, and traveling through Ridgeway, before it enters Talbot County. There, it travels through Baughville, before meeting its eastern terminus, an intersection with SR 208 (Tuck Persons Highway) in Olive Branch, west of Talbotton.[1]
The only segment of SR 315 that is part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility, is the part that is concurrent with US 27/SR 1 in Cataula.[2]
History
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SR 219 in Piney Grove
I-185 west-northwest of Cataula
US 27 / SR 1 in Cataula
US 27 Alt. / SR 85 in Ellerslie
SR 208 in Olive Branch
