Sigman Road NE and SR 138 continues to the northeast in the northeastern part of town. The highway crosses over the Yellow River and cuts across the northernmost corner of Newton County, before entering Walton County. Shortly after the county line is Walnut Grove, where SR 81 (Leone Avenue) runs through. SR 138 continues to the northeast and enters Monroe. In town, is an intersection with SR 10 Business (West Spring Street). It then meets at an interchange with US 78/SR 10. It then finally meets its eastern terminus a fifth of a mile north of the previous interchange. The roadway continues northeast for a mile as Charlotte Rowell Boulevard to Georgia State Route 11 in Monroe. All of SR 138 from I-85 to I-20 is part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility. History An old portion of SR 138 with a steel truss bridge crossing the Alcovy River in Walton County still exists on privately owned property. Major intersections Bannered route State Route 138 Spur (SR 138 Spur) is a very short spur route, about in length, in Jonesboro that connects the SR 138 mainline with US 19/US 41/SR 3/SR 54 (Tara Boulevard). Until the early 1990s, it was part of SR 138 proper, which ran through downtown Jonesboro at the time. Around that time, a new bypass was built around the north side of the city. It initially received the designation SR 138 Spur; however, once the bypass was completed, the SR 138 and SR 138 Spur designations were swapped and the new SR 138 Spur truncated to Tara Boulevard on the west side of Jonesboro. Some street signs on the northern bypass, now the SR 138 mainline, still incorrectly refer to the road as "Spur 138". See also References External links Georgia Roads (Routes 121 - 140) Georgia State Route 138 on State-Ends.com Georgia State Route 138 SPUR on State-Ends.com 138 Transportation in Fulton County, Georgia Transportation in Fayette County, Georgia Transportation in Clayton County, Georgia Transportation in Henry County, Georgia Transportation in Rockdale County, Georgia Transportation in Newton County, Georgia Transportation in Walton County, Georgia