Georgia State Route 81
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| Route information | ||||
| Maintained by GDOT | ||||
| Length: | 68.5 mi (110.2 km) | |||
| Major junctions | ||||
| West end: |
   US 19 / US 41 / SR 3 south of Lovejoy
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    I‑75 / US 23 / SR 20 / SR 42 in McDonough   I‑20 / US 278 / SR 12 in Covington  US 78 / SR 10 / SR 20 in Loganville  US 29 / SR 316 southwest of Winder
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| North end: |
    US 29 Bus. / SR 8 / SR 11 / SR 53 in Winder |
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| Location | ||||
| Counties: | Henry, Newton, Walton, Barrow | |||
| Highway system | ||||
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State Route 81 (SR 81) is a 69.0-mile-long (111.0 km) diagonal state highway that runs southwest-to-northeast in the northwestern part of the U.S. state of Georgia. Its route exists within portions of Henry, Newton, Walton, and Barrow counties.
SR 81 begins at an intersection with US 19/US 41/SR 3 (Bear Creek Boulevard), just north of Hampton, in Henry County. It heads east to McDonough. There, it intersects SR 20 (Hampton Road). They run concurrent to the northeast, into the main part of town. Immediately, they have an interchange with Interstate 75 (I-75) at exit 218. Afterward, the two highways intersect US 23/SR 42. A little farther to the east is an intersection with SR 155 (Zack Hinton Parkway). At this intersection, SR 20 splits off to the north. SR 81 then heads to the southeast before curving to the northeast and crosses over the South River, into Newton County. In Henry County, SR 81 is signed as a west–east route; signage changes to south–north at or near the Newton County line. The highway has an intersection with SR 212. Then, it head north before curving to the northeast again. It meets SR 162 just before it enters Porterdale. In town is an intersection with the northern terminus of SR 162 Connector. SR 81 crosses over the Yellow River and passes through the main part of town. Immediately after leaving Porterdale, it enters Covington, where it turn north and intersects US 278/SR 12, before passing under, but not interchanging I-20. Then, it passes through Oxford.
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