ส่วนเดียวของอดีต SR 243 ที่เป็นส่วนหนึ่งของระบบทางหลวงแห่งชาติซึ่งเป็นระบบเส้นทางที่ถูกกำหนดว่ามีความสำคัญที่สุดต่อเศรษฐกิจ การคมนาคม และการป้องกันประเทศ คือส่วนที่วิ่งไปตาม Fall Line Freeway และส่วนที่วิ่งคู่ขนานกับ US 441 Business [ 51 ]
State Route343 (SR343) was a short-lived state highway that existed in the northeastern part of the state. It was completely within Rabun County. Between June 1960 and June 1963, it was established on a concurrency with US23, US441, and possibly SR15 from Tallulah Falls and Wiley. The entire path of this concurrency was paved.[22][19] By the end of 1965, it was decommissioned, with US23/US441/SR15 all traveling on SR343's former path.[19][20] The only part today that is not part of US 23/441 is Wylie Connector, which was used as the temporary transition from the new route to the original routing.
The highway that would eventually become SR344 was established at least as early as 1919 as part of SR4 from Rome to Cartersville.[65] By the end of 1926, a portion of the highway from just east of Rome to a point northwest of Cartersville was under construction. In the northwestern part of Cartersville and farther to the west, a portion of the highway had a "completed semi hard surface".[30][31] Within three years, the segment of SR4 was redesignated as part of SR20, with US41W designated on it. The portion of the highway just east of Rome had a "completed hard surface". The highway was under construction northwest of Cartersville.[31][66]
By the middle of 1930, the entire Rome–Cartersville segment had a completed hard surface.[66][32] Before the end of 1934, US41W between Rome and Cartersville was redesignated as part of US411.[67][68] In 1953, a small portion of SR20 in the northern part of Cartersville was hard surfaced.[24][25] A few years later, all portions of SR20 that had been built were paved.[7][8] Between 1960 and 1963, US411 between Rome and Cartersville was shifted on a more southerly routing, concurrent with SR344, which was commissioned at this time; SR20 remained on the old alignment.[22][19] In 1977, SR344 was decommissioned, and SR20 was shifted onto US411 between Rome and Cartersville. SR20's old alignment was redesignated as part of SR293.[17][18]
State Route345 (SR345) was a state highway that was assigned to what is now SR100 from SR20 west of Coosa to SR114 in Summerville in Catoosa and Floyd counties. It existed from September 1962 to December 12, 1962.[70]
State Route346 (SR346) was a short east–west state highway that existed in the north-central part of the state. It was completely within Jackson County. Between June 1960 and June 1963, it was established from US129/SR11 in Talmo to SR82 Spur northeast of the city. the entire highway was paved.[22][19] In 1966, SR82 Spur and SR82 swapped paths in the area.[20][53] In 2004, SR346 was decommissioned.[72][73]
State Route350 (SR350) was a state highway that existed in the Athens – Clarke County metropolitan area. It was entirely in Clarke County and the city limits of Athens. Between June 1960 and June 1963, it was established from US129/SR15 in the northwestern part of the city to US29/SR8 in the northeastern part. The entire divided highway was paved.[22][19] By the end of 1965, US29 was designated on SR350 from the US129/SR15 interchange, which also has US29 Temp. and US441 Temp., to the US29/SR8 interchange. US441 Temp. was designated on it from the US129/SR15 interchange to the US441/SR15 Alt. interchange. A western extension of SR350, ending at US29/US78/SR8/SR10, was under construction. Also, SR350 was under construction east-southeast just slightly from the US29/SR8 interchange.[19][20] In 1966, SR350 was decommissioned. US29 was designated on the freeway from the western terminus to where it, as well as SR8, depart the freeway. This interchange also had SR8 Bus. and SR106. SR8 was designated on the entire length of the freeway. Its former path through the city was redesignated as SR8 Bus., still concurrent with US78/SR10.[20][53]
State Route351 (SR351) was a 13-mile-long (21km)state highway that existed in the Atlanta metropolitan area. It traversed portions of Clayton and Henry counties. Between September 1953 and June 1954, the roadway that would eventually become SR351 was established as an unnumbered road from SR138 in Jonesboro to US23/SR42 east-northeast of Flippen.[25][6] Between June 1960 and June 1963 SR351 was designated on this road.[22][19] In 1985, it was decommissioned.[4][5]
State Route353 (SR353) was a north–south state highway that was located in the south-central part of the state. It traversed the northwest portion of Coffee County, the extreme northeastern part of Irwin County, and the southeastern part of Ben Hill County. Between June 1960 and June 1963, the roadway that would eventually become SR353 was established as an unnumbered road built from SR158 west of Douglas, then north and northwest to SR268 west-southwest of Broxton.[22][19] By the end of 1965, SR353 was designated on this road and extended northwest to the Coffee–Irwin county line.[19][20] In 1966, SR353 was proposed to be extended northwest to SR206 north-northeast of Wray in the southeastern part of Ben Hill County.[20][53] In 1973, the highway was extended on this planned path.[76][64] In 1980, it was extended south-southeast around the southwestern part of Douglas to SR135.[52][27] In 1988, SR206 was shifted southeast, replacing all of SR353.[54][75] The old route of SR 206 later became SR706.
State Route357 (SR357) was a 15.5-mile-long (24.9km) north–south state highway that was located in the west-central part of the state. It was completely within Muscogee County and the city limits of Columbus. In April 1932, the roadway that would eventually become SR357 was built as an unnumbered road from the main part of Columbus east to the western edge of Fort Benning.[77][78] Later that year, SR103 was designated on this road, with a "completed hard surface".[78][79] In 1952, an unnumbered road was built from SR103 in the eastern part of Columbus north-northwest to US27 Alt./SR85.[39][24] Between June 1963 and the end of 1965, SR103's southern terminus was truncated to Buena Vista Road and Brennan Road in the main part of Columbus. Its former path on Buena Vista Road was redesignated as SR357. The unnumbered road built a decade before was also numbered as part of SR357.[19][20] In 1969, SR357 was extended south-southwest to SR85 south of Columbus (now within Fort Benning). This extension replaced SR1 Spur.[23][9] In 1983, SR357 was decommissioned.[13][4]
State Route359 (SR359) was a short lived state highway that existed completely within Chatham County, mostly within the city limits of Savannah. Between June 1963 and the end of 1965, it was established from just north of Hunter Air Force Base south of the city to US17/US80/SR25/SR26S in downtown, traveling on Abercorn Street and 37th Street.[19][20] In 1968, the entire highway was redesignated as part of SR204.[29][23]
State Route361 (SR361) was a north–south state highway that was located in the central part of the state. It was completely within Bibb County, mostly in the city limits of Macon. Between June 1963 and the end of 1966, the roadway that would eventually become SR361 was built as Hartley Bridge Road and Mt. Pleasant Church Road south of Macon.[19][20] In 1967, SR361 was established from US41/SR49/SR247 south of Macon, west on Hartley Bridge Road and Mt. Pleasant Church Road, then north-northeast on Fulton Mill Road, Heath Road, Tucker Road, and Foster Road, and then northeast on Bass Road to SR87 east-southeast of Bolingbroke.[53][29] In 1972, US23 was shifted onto SR87.[10][61] In 1976, US129 onto US41/SR49/SR247 south of Macon.[42][17] In 1982, SR361 was decommissioned.[21][13]
State Route363 (SR363) was a north–south state highway that was located in the southwestern part of the state. It was completely within Early County. The roadway that would eventually become SR363 was built in 1952 as an unnumbered road from US84/SR38 in Saffold to SR39 in the southern part of Blakely.[39][24] The next year, the northern terminus of this road was shifted to SR62 in the western part of Blakely.[24][25] In 1966, the northern terminus was shifted back to its original location.[20][53] In 1967, SR363 was designated on this road.[53][29] In 1985, all of SR363 except for the southern piece was decommissioned. This southern portion was redesignated as part of SR370.[4][5]
State Route363 Spur (SR363 Spur) was a spur route of SR363 that existed entirely in the southwestern part of Early County. Between June 1963 and the end of 1966, an unnumbered road was built west-southwest from Cedar Springs.[19][20] In 1967, SR363 Spur was designated on this road.[53][29] In 1985, when SR363 and SR363 Spur were decommissioned, SR273 was extended west-southwest of Cedar Springs. This replaced the eastern part of SR363 Spur. What was the western part was redesignated as SR273 Spur.[4][5]
State Route366 (SR366) was a north–south state highway that was located in the northeastern part of the state. It was completely within Hart County. In 1967, it was established from an intersection with SR51 and SR77 west of Hartwell, then northwest on a concurrency with SR77 and solely north-northwest to Interstate85 (I-85) northeast of Lavonia and just south of Tugaloo State Park. The entire highway was hard surfaced.[53][29] In 1990, SR77's path in the Lavonia area was shifted northeast, replacing all of SR366. Its former path was redesignated as SR77 Conn.[62][63]
State Route371 (SR371), locally known as Post Road, was a north–south state highway that was located in Forsyth County. On June 8, 1971, it was established along part of what had been SR141 a little after a year after SR 369 replaced what had been a disconnected part of SR 141. After US 19 was moved to SR 400 in 1981, it became mostly a local farm-to-market road, and its continued existence as a state route was a relic. After widening and reconstruction of nearby Bethelview Road was completed in 2019, SR 141 was extended in early 2020 along Bethelview Road to SR 20. As a nearly mile-for-mile swap, SR 371 subsequently was transferred to local control in 2020.[82]
State Route373 (SR373) was an east–west state highway that was located in the northwestern part of the state. It was completely within Gordon County. Between June 1963 and the end of 1965, the roadways that would eventually become SR373 were built as unnumbered roads. One extended from Calhoun to Cash. The other extended from Cash to SR53 in Sonoraville.[19][20] In 1972, SR373 was designated on both of these roads, starting at SR156 in Calhoun.[61][76] In 1977, it was decommissioned.[17][18]
State Route375 (SR375) was a very short-lived state highway that existed in the west-central part of the state. It traversed portions of Quitman and Stewart counties. Between June 1963 and the end of 1965, the roadway that would eventually become SR375 was built as an unnumbered road from Florence north-northeast to Omaha, and then eastward to US27/SR1 south-southeast of Louvale.[19][20] In 1968, this road was extended south-southwest to SR27 in Georgetown.[29][23] In early 1972, this road was designated as SR375.[61][83] Later that year, it was redesignated as a northern extension of SR39.[61][76]
State Route375 Connector (SR375 Conn.) was a connector route of SR375 that existed entirely in Stewart County in the west-central part of the state. In 1970, the roadway that would eventually become SR375 Conn. was built as an unnumbered road from Florence to US27/SR1 in Lumpkin.[9][10] In early 1972, this road was designated as SR375 Conn.[61][83] Later that year, it was redesignated as SR39 Conn.[61][76]
State Route379 (SR379) was a short-lived east–west state highway that was located completely within Pickens County. It was locally known as Henderson Mountain Road. The roadway that would eventually become SR379 was established in 1941 as an eastern segment of SR143 from SR53 east of Fairmount to SR5 and SR53 in Tate.[84][16] By the end of 1946, the eastern half of this segment had a "sand clay, top soil, or stabilized earth" surface. The western half of it was indicated to be "projected mileage".[2][3]
By the end of 1960, nearly the entire part of this highway west of the SR156 intersection was decommissioned.[8][22] By the end of 1963, this decommissioned part was re-instated.[22][19] In 1970, a portion of it southeast of the SR53 intersection was hard surfaced.[9][10] In 1973, this portion was indicated to be "under construction or projected mileage".[76][64] In 1977, all of SR143 from its western terminus to northeast of Sharp Top was redesignated as SR379; northeast of this point to west of Tate was redesignated as part of SR108; and from there to Tate was redesignated as SR108 Conn.[17][18] In 1981, SR379 was decommissioned.[28][21]
State Route381 (SR381) was a north–south state highway located in Paulding County in the northwestern part of the state. The roadway that would eventually become SR381 was built in 1939, when SR92 was extended from Hiram to Acworth.[85] By the end of 1948, the entire length of SR92 that would become SR381 was hard surfaced.[2][3] In 1966, the Dallas–New Hope segment of SR92 was shifted to the southeast. Its old alignment became SR92 Spur.[20][53] In 1972, the Hiram–New Hope segment of SR92 was shifted east. Its old alignment between New Hope and Cross Roads became a northeast extension of SR92 Spur.[61][76] In 1979, SR92 Spur was redesignated as SR381.[52][27] In 1990, SR381 was decommissioned.[62][63]