I 520 South Carolina

Route
I 40 West, I 85 South, I 77 South, US 1 South, I 20 West to Augusta
GA 28, I 20, I 520, GA 104, GA 337, Local Roads
I 20 East, US 1 North, I 77 North, I 85 North, I 485 South, US 29 North, I 85 North, I 40 East to Chapel Hill
Notes
I 520 has been completed to interchange with I 20 in South Carolina. It is the only odd three digit interstate to begin and end at its parent. There are no plans to renumber the road. Since both ends of I 520 were rebuilt and resigned this year, they could have done both ends at little cost. But what is done is done.
I 520 in South Carolina has four exits: diamonds at US 1 and Clearlake Road, a half cloverleaf at US 25/SC 121 connector and T-flyovers at I 20. The interchange with I 20 is so close to the US 25 interchange, that the entrance and exit ramps cross. There is no way to exit from I 520 onto I 20 and then exit onto US 25 and vice versa. To connect from I 520 to US 25, you have to use the connector, a mile south.
The reconstruction of the interchange between I 20 and I 520 in Georgia is complete. There are now flyovers to and from I 520 and C/D lanes along I 520. One of the hotels we used to stay at in Augusta was a victim of the construction, since it lost so much traffic.
There was a giant traffic jam on I 85 between I 485 and US 601/US 29. We managed to get over to I 485 and went over to US 29. We tried Brutun Smith Boulevard, but it was backed up for at least a mile from I 85, so we took US 29 to Concord. Traffic was stopped on I 85 south there. The backup continued well past China Grove. There were a lot of Carolina fans in the jam trying to get to the bowl game. I wonder if they made it in time.
Noticed a Truck Route for NC 73 multiplexed with US 601 on the west side of Concord.
Results
Clinched I 520 South Carolina.