Highway) At this intersection, the highway takes the name Hiram Sudie Road. It continues to the east and meets the Bill Carruth Parkway, before it reaches its eastern terminus, an intersection with SR 92 (Hiram Douglasville Highway) on the southwestern edge of Hiram. SR 120 Connector is not part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility. Lost Mountain–New Hope connector route State Route 120 Connector (SR 120 Conn.) was a connector route of SR 120 in Paulding County. The highway that would eventually become SR 120 Conn. was established at the end of 1940 as SR 176 from SR 6 in Hiram to SR 92 in New Hope. A portion of SR 176 just west of Lost Mountain had a "sand clay, top soil, or stabilized earth" surface. By the middle of 1950, a portion just west of Lost Mountain was hard surfaced. In 1953, a portion west of Lost Mountain had completed grading, but was not surfaced. By the middle of 1955, this entire segment of SR 176 had a sand clay, topsoil, or stabilized earth surface. About two years later, it was indicated to have a "topsoil or gravel, unpaved" surface. Between 1957 and 1960, it was paved. About a decade later, the segment of SR 176 between Lost Mountain and New Hope was shifted to the northeast. Its former alignment was redesignated as SR 92 Conn. In 1979, SR 92 Conn. was redesignated as SR 120 Conn. In 1983, SR 120 Conn. was decommissioned. Marietta alternate route State Route 120 Alternate (SR 120 Alt.) exists within the central and eastern parts of Marietta. It serves as the northern section of the Marietta Parkway. It begins at an intersection with the SR 120 mainline (Whitlock Avenue SW) in the central part of the city. At this intersection, SR 120 Alt. is concurrent with SR 5 north of the intersection. The two highways head north and curve to the east and meet US 41/SR 3 (Cobb Parkway SE). Here, SR 5 turns north onto Cobb Parkway, while SR 120 Alt. continues to the east on Marietta Parkway. The road meets an interchange with Interstate 75 (I-75) before curving to the southeast to meet its eastern terminus, an interchange with the eastern terminus of SR 3 Conn. (Roswell Road) and the SR 120 mainline. SR 120 Alt. is not part