Georgia State Route 155

State Route 155 (SR 155) is a state highway that travels south-to-north through portions of Spalding, Henry, Rockdale, and DeKalb counties in the north-central part of the U.S. state of Georgia. Route description Spalding County SR 155 begins at an intersection with US 19/US 41/SR 3/SR 7 south of Griffin, in Spalding County. This also marks the southern terminus of US 19 Bus./US 41 Bus., which travel concurrently with SR 155 to the northeast to an intersection with SR 16 in the central part of the city. They cross a Norfolk Southern Railway until SR 155 departs to the east. It heads northeast, and turns north on McDonough Road. It heads northward and enters Henry County.