Interstate 520
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Interstate 520 (abbreviated I-520) partly encircles Augusta, Georgia. I-520 is also known as Bobby Jones Expressway and unsigned State Route 415. It begins at Interstate 20 northwest of the city, and hooks around to the south and then east. Its current terminus is at U.S. Route 1 in North Augusta, South Carolina.
Current plans call for the freeway to end back at Interstate 20 somewhere near the current interchange with U.S. Highway 25 at Exit 5 in South Carolina. The highway becomes known as the Palmetto Parkway once it crosses east into South Carolina. I-20 runs north of the city, with Aiken, South Carolina across the Savannah River to the east side.
In Georgia, it is named for golfer Bobby Jones, in South Carolina it is named for the palmetto, the state tree.
I-520 loses its state route designation in South Carolina, as it does not co-number its interstates with state highway numbers.
[edit] Exit list
The following exits are listed west to east with the mile-log numbering used since 2000 above, and the actual exit numbers originally used below.
| County | # | Old | Destinations | Notes |
|---|---|---|---|---|
 (Bobby Jones Expressway) becomes  (unsigned  ) |
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| Richmond | 1A | 1A |   Interstate 20 West - Atlanta |
Unsigned  GA 402 |
| 1B | 1B |  Interstate 20 East - Columbia, SC |
Unsigned GA 402 |
|
| 1C | 2 | Wheeler Road - Augusta | ||
| 2 | 3 | Wrightsboro Road - Augusta | Daniel Field Airport | |
| 3A | 4A |       US 78/US 278/GA 10 West (Gordon Highway) - Augusta |
Fort Gordon | |
| 3B | 4B |  US 78/US 278/GA 10 East (Gordon Highway) - Augusta |
||
| 5A | 5A |    US 1/GA 4 South (Deans Bridge Road) - Augusta, Wrens |
||
| 5B | 5B |  US 1/GA 4 North (Deans Bridge Road) - Augusta |
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| 7 | 6 |   US 25/GA 121 (Windsor Spring Road/Peach Orchard Road) - Augusta, Waynesboro |
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| 9 | 7 |  GA 56 (Mike Padgett Highway) - Augusta |
||
| 10 | 8 |  GA 56 Spur (Doug Barnard Parkway) - Augusta |
Augusta Regional Airport at Bush Field | |
| 16 | 9 |  GA 28 (Sandbar Ferry Road/Laney-Walker Boulevard) - Augusta |
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| Georgia-South Carolina border becomes |
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| Aiken | 17 | n/a | US 1 (Jefferson Davis Highway) - Aiken, SC; North Augusta, SC |
Eastern terminus |
 |
Auxiliary routes of Interstate 20 | |
| Current and Future (F) | Former | |
 |
Louisiana - Mississippi | |
 |
Georgia - Louisiana | |
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Georgia-South Carolina | |
 |
Texas | |
