Georgia State Route 5
Between August 1950 and the beginning of 1952, the entire Powder Springs–Marietta segment had a completed hard surface. A portion north-northeast of McWhorter had a sand clay or top soil surface. In 1953, the northern two-thirds of the McWhorter–Douglasville segment was hard surfaced. A portion east of Roopville had a sand clay or top soil surface. Three segments had completed grading, but was not surfaced: from the Alabama state line to Roopville, the Carroll County portion of the Whitesburg–McWhorter segment, and a portion north-northeast of McWhorter. Between June 1955 and July 1957, a portion east of Roopville had completed grading, but was not surfaced. Between July 1957 and June 1960, three segments were paved: the central portion of the Bucktown–Roopville segment, the western half of the Roopville–Whitesburg segment, and from southwest of Whitesburg to north-northeast of McWhorter. By June 1963, the segment from west-northwest of Tyus to Roopville was paved. By the end of 1965, the segment from the Alabama to east-southeast of Lowell was hard surfaced. The segment from east-southeast of Lowell to south-southwest of Whitesburg had a "topsoil or gravel" surface. At this time, SR 5 Byp. was built and hard surfaced from US 76/SR 5 southwest of Blue Ridge to SR 5 north of the city. In 1966, SR 5 was hard surfaced from Alabama to Douglasville. In 1973, SR 705 was proposed from SR 3 (Church Street) in Marietta to SR 5 south of Blackwell, with an interchange with I-75. In 1977, I-575/SR 713 was proposed from I-75 north of Marietta to just south of the Cherokee–Pickens county line. It was completed from SR 140 south of Canton to SR 20 east of the city. The next year, the entire Cobb County portion (except for the southern end) of I-575/SR 713 was under construction. SR 5 through Blue Ridge was shifted westward, replacing the entire length of SR 5 Byp. Its former path through the city was redesignated as SR 5 Bus. By the end of the decade, SR 733 was proposed between two intersections with US 76/SR 5 northeast of Ellijay. At this time, SR 734 was proposed from US 76/SR 5 south-southwest of Cherry Log, across US 76/SR 5 north-northeast of Cherry Log, and then to another intersection with US 76/SR 5 in Lucius.
Georgia State Route 8
The following segments of SR 8 are included as part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility:
SR 8 was established at least as early as 1919 on its current path, except for the Lawrenceville–Athens segment going through Winder, and the segment from Hartwell to the South Carolina state line traveling to the east-northeast. At this time, SR 34 was established from Carrollton to Villa Rica. By the end of September 1921, SR 16 was established from the Alabama state line to Carrollton. By October 1926, US 78 was designated on the path of SR 8 from the Alabama state line to Decatur and a segment west-southwest of Athens. US 29 was designated on SR 8 from Atlanta to the South Carolina state line. SR 16 from Alabama and Carrollton and SR 34 from Carrollton to Villa Rica were redesignated as a southern branch of SR 8. An unnumbered road was established from US 29/SR 8 in Hartwell east-southeast to the South Carolina state line, at a point just south-southeast of the current eastern terminus of SR 8. Four segments had a "completed hard surface": from northwest of Atlanta to Decatur, the eastern two-thirds of the Gwinnett County portion of the Decatur–Lawrenceville segment, from northwest of Watkinsville to the northeast part of Athens, and the eastern part of the Royston–Hartwell segment. By October 1929, US 19 was designated on the Atlanta–Lawrenceville segment. The Decatur–Lawrenceville segment had a completed hard surface.