U.S. Route 521 (US 521) is a north–south United States Highway that traverses 177.3 miles (285.3 km), from Georgetown, South Carolina, to Charlotte, North...

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. U.S. Route 521 Business...

Several special routes of U.S. Route 1 (US 1) exist, from Florida to Maine. In order from south to north, separated by type, these special routes are as...

Several special routes of U.S. Route 15 (US 15) exist. In order from south to north, they are as follows. U.S. Highway 15 Alternate (US 15 Alt.) in South...

A total of at least seven special routes of U.S. Route 301 exist and at least eleven have been deleted. U.S. Route 301 Alternate (US 301 Alt.) is a 6.5-mile-long...

Several special routes of U.S. Route 54 exist, from Texas to Missouri. In order from southwest to northeast, separated by type, they are as follows. U.S. Route...

U.S. Route 301 (US 301) is a spur of U.S. Route 1 running through the South Atlantic states. It runs 1,099 miles (1,769 km) from Biddles Corner, Delaware...

U.S. Route 501 (US 501) is a spur of U.S. Route 1. It runs 355 miles (571 km) from Buena Vista, Virginia at U.S. Route 60 to Myrtle Beach, South Carolina...

part of the original routing of US 601. Today, most of its path is part of US 52. United States portal U.S. roads portal Special routes of U.S. Route 601...

U.S. Route 701 (US 701) is an auxiliary route of US 1 in the U.S. states of South Carolina and North Carolina. The U.S. Highway runs 171.45 miles (275...