Alternate US-412 was marked as "Scenic US-412" prior to 2012. This was one of only two scenic special routes in the country, the other being U.S. Route 40 Scenic in Maryland. Maps usually still marked the road as "Alternate US-412", however. Scenic US-412 was originally part of State Highway 11 and later State Highway 33.
US Route 412 Business (US 412B) is a business route of 4.65 miles (7.48 km) in Hindsville. The route has its northern terminus is at US 412/Arkansas Highway 45 north of Hindsville. Posted as US 412B, the route runs through Hindsville, meeting AR 45 south before terminating at US 412 southeast of Hindsville. It was created in 2007 following completion of a 4 lane bypass around the east side of town.
U.S. Route 412 Business (US 412B) is a business route of 5.48 miles (8.82 km) in Huntsville, Arkansas. The route begins at US 412 west of Huntsville and runs east through town as Main Street. US 412B has a junction with AR 74 before it passes the Madison County Courthouse. The road continues east, forming a concurrency with Arkansas Highway 23 north for 0.5 miles (0.80 km) before the two roads diverge. The highway continues another 1.87 miles (3.01 km) before terminating at US 412 east of Hunstville.
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U.S. Route 412 Business (US 412 BUS) is a business route in Jackson, Tennessee, that is overlapped with Tennessee State Route 20. The road runs from US 412 at Exit 79 on Interstate 40 along Hollywood Drive to North Parkway, and later joins an overlap with U.S. Route 70 in Tennessee at Whitehall Street, until it ends at the eastern terminus of another overlap with US 70/412, just southwest of Exit 87 on I-40.
U.S. Route 412 Business (US 412 BUS) is a business route and former section of mainline US 412 in Columbia, Tennessee. The route begins at the interchange with US 43 and the western terminus of it's multiplex with US 412, as Hampshire Pike. Tennessee State Route 50 intersects the route from Williamsport Pike, and joins the route in a concurrency until after they cross a bridge over Bigby Creek, and TN 50 turns south onto James Campbell Boulevard West. From there, the name of Hampshire Pike becomes West Seventh Street. From there the route runs along the north side of the historic Columbia Arsenal, and several blocks after a railroad crossing it serves as the northern terminus of Tennessee State Route 243. Closer to downtown Columbia, the road becomes line with more historic sites along with some locally notable ones, such as the West Seventh Church of Christ and the Oakes and Nichols Funeral Home, then the NRHP-listed Robert Church House, and across from that the headquarters for WKRM-AM/WKOM-FM. This is followed by the St. Peter's Episcopal Church across from the local Knights of Columbus chapter, and then the James K. Polk Ancestral Home and Sisters' House across from the Maury County Visitor's Center.
Entering the Columbia Commercial Historic District, West Seventh Street approaches Maury County Courthouse Square, but one block before that street circles around the courthouse, US BUS 412, joins a northbound multiplex with US 31 (North Garden Street). Beginning at Third Street, US 31/BUS 412 curves from straight north to northeast and after the intersection with North James Campbell Boulevard crosses a bridge over Duck River, then curves even more towards the northeast as it becomes the Nashville Highway, a standard four-lane divided commercial strip. US 412 Business ends at the northern terminus of US 43, while US 31 continues north along TN 6, as US 412/TN 99 continues east towards I-65.