The western terminus of SR 676 is at a T-intersection with SR 555 approximately 3 miles (4.8 km) southeast of the village of Chesterhill.

Its eastern terminus is at a T-intersection with SR 7 in the southwestern portion of the city of Marietta.

SR 676 traverses the western portion of Washington County and a small portion of southern Morgan County.

There are no segments of SR 676 that are a part of the National Highway System (NHS), a network of route determined to be most important for the economy, mobility and defense of the country.

Initially, the entire length of SR 676 was a gravel roadway.