U.S. Route 12 or U.S. Highway 12 (US 12) is an east–west United States Numbered Highway, running from Aberdeen, Washington, to Detroit, Michigan, for...

Several special routes of U.S. Route 12 (US 12) exist, from Washington to Michigan. In order from west to east, separated by state, they are as follows...

19 former special routes of U.S. Route 27 (US 27), along with 10 current and six former special routes of State Route 1 (SR 1) in Georgia. U.S. Highway 27...

total of at least 31 special routes of U.S. Route 17 (US 17) exist: 3 in Florida, 5 in South Carolina, 17 in North Carolina, and 6 in Virginia. U.S. Highway 17...

Several special routes of U.S. Route 70 exist. In order from west to east, these special routes are as follows. U.S. Route 70 Alternate (US 70A) is an...

Several special routes of U.S. Route 64 exist. In order from west to east they are as follows. U.S. Route 64 Alternate (US 64 Alt) was established in 1979...

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 41 exist, including three in Wisconsin. In order from south to north they are as follows. U.S. Route 41 Business...

There have been 22 special routes of U.S. Route 66. Alternate U.S. Route 66 was a designation to preserve the next-to-last routing of U.S. 66 from Pasadena...

it possessed numerous special routes, which are all loops off the mainline US 13. At present, there are at least 15 special routes in existence: two in...