| State Route 121 | ||||
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| Route information | ||||
| Maintained by GDOT | ||||
| Length: | 238.6 mi (384.0 km) | |||
| Major junctions | ||||
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| Location | ||||
| Counties: | Charlton, Brantley, Pierce, Appling, Tattnall, Candler, Emanuel, Jenkins, Burke, and Richmond | |||
| Highway system | ||||
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| State Route 121 Bypass | |
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| Location: | Waynesboro |
| Length: | 5.7 mi (9.2 km) |
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US 1 / US 23 / US 301 / SR 4 / SR 15 in Folkston![]()
US 301 / SR 23 in Homeland![]()
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US 1 / US 23 / SR 4 in Racepond
I‑16 in Metter
I‑520 in Augusta