Four special routes of U.S. Route 521 exist, and two others have existed in the past. In order from south to north they are as follows.
Contents
- Map of US 521 BUS Kershaw SC 29067 USA
- Andrews business loop
- Camden truck route
- Kershaw business loop
- Lancaster business loop
- Sumter connector
- Lancaster Bypass
- References
Map of US-521 BUS, Kershaw, SC 29067, USA
Andrews business loop
U.S. Route 521 Business is a 3.2 miles (5.1 km) route follows the old US 521 mainline route through downtown Andrews, via Main Street.
The entire route is in Andrews, Georgetown County.
Camden truck route
U.S. Route 521 Truck is an alternate route for trucks to avoid downtown Camden. The route takes various roads including: Ehrenclou Drive, Chestnut Ferry Road, Jefferson Davis Highway (in concurrency with US 1/US 601/SC 34), Springdale Drive, and Boykin Road (in concurrency with US 601 Truck).
The entire route is in Camden, Kershaw County.
Kershaw business loop
Following the old US 521 mainline route, this 1.4 miles (2.3 km) business loop, in concurrency with US 601 Business, goes through downtown Kershaw, via Hampton Street.
The entire route is in Kershaw, Lancaster County.
Lancaster business loop
Originally following the old US 521 mainline route, this 3.8 miles (6.1 km) business loop went through downtown Lancaster, via Market Street and Main Street. At some point it was relocated to Market Street until the intersection with Barr Street, where it turned left and then right onto Main Street.
The entire route is in Lancaster, Lancaster County.
Sumter connector
U.S. Route 521 Connector was a 4.7 miles (7.6 km) spur route that went east around Sumter (along Guignard Drive), connecting to US 15, in the south-end of Sumter. This connector became part of the main route sometime before 2009.
Lancaster Bypass
U.S. Route 521 Bypass was the bypass around downtown Lancaster, South Carolina, until the main line was realigned in 1965, and the former route was converted into U.S. Route 521 Business (Lancaster, South Carolina).