Special routes of U.S. Route 18

U.S. Route 18 marker

U.S. Route 18
Highway system

At least six special routes of U.S. Route 18 have existed.

Existing

Hot Springs bypass


U.S. Highway 18 Bypass
Location Hot Springs, South Dakota
Length 1.83 mi[1] (2.95 km)

U.S. Route 18 Bypass (US 18 Byp.) is a bypass around the Hot Springs, South Dakota, city center. It begins on the west side of Hot Springs at an intersection with US 18 and travels in a southeasterly direction. It skirts the western and southern edges of the city and meets South Dakota Highway 71 (SD 71) close to the point where the route turns east. It ends at US 18/US 385 in the southeastern corner of the city.[2]

Mason City business loop


U.S. Highway 18 Business
Location Mason City, Iowa
Length 10.752 mi[3] (17.304 km)

U.S. Highway 18 Business (US 18 Business) begins at a diamond interchange with Interstate 35 (I-35) on the eastern edge of Clear Lake. The route, overlapped by Iowa Highway 122 (Iowa 122), begins as a four-lane divided highway, serving the Mason City Municipal Airport before entering Mason City proper. Between Eisenhower and Jefferson Avenues in Mason City, the highway is undivided. This road is the primary east–west artery through Mason City. At Jefferson Avenue, US 18 Business / Iowa 122 separate into a pair of one-way streets, remaining in this configuration through the downtown area where the Park Inn Hotel, one of Frank Lloyd Wright's few commercial buildings, resides. They intersect US 65 at Federal Street. US 18 Business turns to the south to follow US 65. The business loop rejoins its parent route south of the city limits.[4]

Marquette–McGregor business loop


U.S. Highway 18 Business
Location McGregor–Marquette, Iowa
Length 4.149 mi[3] (6.677 km)
Existed 1989–present

U.S. Highway 18 Business (US 18 Business) begins at an intersection with US 18 west of McGregor. The route descends into the Mississippi River valley along the northern border of Pikes Peak State Park and then turns into McGregor. Through McGregor, US 18 Business heads to the northeast towards the Mississippi River. Along the river, the highway is parallel to the Dakota, Minnesota and Eastern Railroad (DM&E Railroad). For one mile (1.6 km), US 18 Business travels a narrow strip of land between the river and the bluffs where it passes a riverboat casino. At Marquette, US 18 Business ends at the foot of the Marquette–Joliet Bridge, which carries US 18 to Prairie du Chien, Wisconsin.[3]

Mount Horeb business loop


Business US Highway 18
Location Mount Horeb, Wisconsin

U.S. Highway 18 Business (US 18 Business) is a former segment of US 18/151 between Exits 65 and 69 within Mount Horeb. The route is also shared by US 151 Business, as well as parts of Wisconsin Highway 78 and Dane County Road ID.

Verona business loop


Business US Highway 18
Location Verona, Wisconsin

U.S. Highway 18 Business (US 18 Business) is a former segment of US 18/151 within Verona. The route is also shared by US 151 Business and Dane County Road MV. US 18 Business/151 Business/CR MV begins at a pair of flyover interchanges with US 18/151 on Exit 76 west of Verona. Eastbound Exit 76 runs directly into the business routes on West Verona Avenue, while westbound Exit 76 connects to the business routes by way of Epic Lane. From there, the business routes run east-northeast as a four-lane divided highway until the intersection with Legion Street, where it becomes a local two-lane undivided road. At the intersection with North and South Main Streets (Dane County Road M), West Verona Avenue becomes East Verona Avenue, making a brief reverse curve to the left before returning to its previous trajectory at School Street and becoming a four-lane divided highway east of there. US BUS 18/151/CR MV ends east of Verona at Exit 81 on US 18/151, but only with an eastbound on-ramp and westbound off-ramp.

See also

  • South Dakota portal
  • Iowa portal
  • Wisconsin portal
  • U.S. Roads portal

References

  1. ↑ "State Highway Log" (PDF). Rapid City: South Dakota Department of Transportation. February 11, 2013. p. 488. Retrieved December 2, 2013.
  2. ↑ Google (December 3, 2013). "US 18 Truck in Hot Springs, SD" (Map). Google Maps. Google. Retrieved December 3, 2013.
  3. 1 2 3 "2012 Volume of Traffic on the Primary Road System of Iowa" (PDF). Iowa Department of Transportation. January 1, 2012. Retrieved December 2, 2013.
  4. ↑ Transportation Map (PDF) (Map). Iowa Department of Transportation. 2013. Retrieved December 2, 2013.
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