State Route 354 is a short, arc-shaped

Arc (geometry)

In geometry, an arc is a closed segment of a differentiable curve in the two-dimensional plane; for example, a circular arc is a segment of the circumference of a circle...

 highway entirely in Harris County

Harris County, Georgia

Harris County is located in the U.S. state of Georgia. It was created on December 14, 1827. As of 2000, the population was 23,695. The 2007 Census Estimate shows a population of 29,073. The county seat is Hamilton...

. From its western terminus at S.R. 18 west of the town of Pine Mountain, the route travels east, intersecting U.S. 27/S.R. 1

U.S. Route 27

U.S. Route 27 is a north–south United States highway in the southern and midwestern United States. The southern terminus is at US 1 in Miami, Florida. The northern terminus is at Interstate 69 in Fort Wayne, Indiana...

 in the town of Pine Mountain. The route then turns south, ascending Pine Mountain. On top of the mountain, S.R. 190 passes over the route on a historic bridge

Bridge

A bridge is a structure built to span physical obstacles such as a body of water, valley, or road, for the purpose of providing passage over the obstacle...

 built by the Civilian Conservation Corps

Civilian Conservation Corps

The Civilian Conservation Corps was a public work relief program that operated from 1933 to 1942 in the United States for unemployed, unmarried men from relief families, ages 18–25. A part of the New Deal of President Franklin D...

. The route then descends the mountain into the valley below, reaching its eastern terminus at S.R. 116 in Pine Mountain Valley. The route serves as a connector and access road to traffic visiting F.D. Roosevelt State Park.