Special routes of U.S. Route 14

U.S. Highway 14 Alternate is an alternate route for U.S. Highway 14 between Cody and Burgess Junction known as the Medicine Wheel Passage.[1]

U.S. Highway 14A is an alternate route for U.S. Highway 14 between Spearfish and Sturgis located mostly south of the I-90/US 14 overlap. The route begins at the I-90/US 14/US 85 overlap at Exit 14 which serves 27th Street. It briefly runs south and then turns west along East Colorado Boulevard (BL 90), which is used as a frontage road along the south side of I-90. In between the Alt. US 14 and I-90 is the Spearfish Recreational Trail. BL 90/US 14A moves away from I-90 just before the intersection with Sandstone Hills Drive. At Spearfish Canyon Highway, US 14A leaves the overlap with BL 90 and turns south. A spur of the Spearfish Recreational Trail leave US 14A at Winterville Road, and in the vicinity of the southern trailhead of the Spearfish Path, the route begins to wind around Spearfish Creek and Spearfish Canyon running through the North Hills of the Black Hills National Forest, which includes scenic areas for both cars and hikers, and unincorporated communities and ghost towns such as Maurice, Victoria, and Elmore.

In Cheyenne Crossing, the road turns left and begins the first of two overlaps with US 85. The two routes form a concurrency from there to Lead, then are separated where it continues north also overlapping U.S. Truck Route 85, only to turn east as the routes run through Center City and Backtail. The route meets US 85 again in Deadwood. The routes run together through Deadwood before splitting again, and US 14A turns east along Boulder Canyon Highway. US Highway 14A ends in Sturgis at the I-90/US 14 interchange at Exit 30, but the road continues as another Business Loop of I-90 with an overlap of SD 34 and 79.

U.S. Highway 14 Truck is a truck route of US 14. Trucks and overheight vehicles use the truck route to avoid colliding with a low-clearance railroad overpass.[3] The truck route begins at Pierre Street and travels eastward along Sioux Avenue. At 0.8 miles (1.3 km), the truck route turns northeastward and crosses the same railroad, but at a railroad crossing. The route then runs along Wells Avenue for over 1 mile (1.6 km) before turning north along Garfield Avenue. It then continues northward for around 2.8 miles (4.5 km) before meeting US 14/US 83.[2]

U.S. Route 14 Bypass is a bypass route of US 14 along the northern edge of Brookings, South Dakota. The bypass route begins at a partial interchange with US 14 and travels eastward in a somewhat straight line. After meeting and passing I-29, the route begins to curve south before ending at US 14.[4]

U.S. Highway 14 Business (US 14 Bus.) is a business loop of US 14 in Dodge Center. The business route begins at a roundabout diamond interchange and travels northeast alongside MN 56. After around 1.7 miles (2.7 km), US 14 Bus. turns east off from MN 56 and begins curving southeast. The business route runs concurrently with County Road 34 along the way eastward. In Dodge Center, the road becomes Highway Street. At the town limit east of Dodge Center, the route turns south and joins back with US 14.[5]

Business U.S. Highway 14 (Bus. US 14) in Janesville, Wisconsin, was a locally posted route along what used to be mainline US 14 until 1952.[7][8] Currently, only the portion from I-39/I-90, east toward US 14 east of Janesville, runs along State Trunk Highway 11 (WIS 11). Northwest of Janesville, Bus. US 14 runs along County Trunk Highway E (CTH-E)/Washington Street.

Signage for Bus. US 14 appears to be missing at some locations within the city. It is unknown if the route markers are currently being maintained by the city or if they are no longer being replaced as they reach the end of their lifespans. However, in 2001, the Wisconsin Department of Transportation (WisDOT) removed Bus. US 14 west of the Rock River from official road maps, and, in 2006, the remaining section east of the river was removed.

While City US 14 became Bus. US 14 in 1963,[9][10] several City US 14 route marker assemblies remain in Janesville. Also, the first reassurance marker assembly along CTH-E also includes a sign for Bus. US 14.[6]

U.S. Route 14 Business was a business route of US 14. Prior to 1962, US 14 traveled through the city of Woodstock. In 1962, US 14 moved south to travel on a newly-built bypass.[11][12] US 14 Bus. was then signed in 1963, which traveled along the former alignment in Woodstock.[13] This designation lasted until 1971 when the business route was removed.[14][15][16]