U.S. Highway 218 (US 218) is an original

United States Highway The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these hi ...

that was created in 1926. Although technically a spur of US 18, US 218 neither begins nor ends at US 18, but overlaps US 18 for near Charles City, Iowa. US 218 begins at 136 in downtown Keokuk and ends away at

Interstate 35 Interstate 35 (I-35) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route. It stretches from Laredo, Texas, near the Mexican border ...

(I-35) and US 14 at

Owatonna, Minnesota Owatonna () is a city in Steele County, Minnesota, Steele County, Minnesota, United States. The population was 25,599 at the 2010 United States Census, 2010 census. It is the county seat of Steele County. Owatonna is home to the Steele County Fair ...

. A large portion of US 218 in Iowa is part of the

Avenue of the Saints The Avenue of the Saints is a highway in the Midwestern United States that connects St. Louis, Missouri and St. Paul, Minnesota. Route description Missouri The southern end of the Avenue of the Saints is at exit 28A of Interstate 64 (I‑64) ...

, which connects

St. Louis, Missouri St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...

, and

Saint Paul, Minnesota Saint Paul (abbreviated St. Paul) is the capital of the U.S. state of Minnesota and the county seat of Ramsey County. Situated on high bluffs overlooking a bend in the Mississippi River, Saint Paul is a regional business hub and the center ...

Route description

Iowa

US 218 begins in downtown Keokuk at an intersection with US 136 and US 61 Business (US 61 Bus.) at Main and 7th streets. The highway heads north along Main Street with US 61 Bus. As they exit Keokuk, the business route ends at an intersection with the mainline US 61, which bypasses the city. US 218 and US 61 head north concurrently for a few miles before US 218 exits to the northwest; US 61 follows the

Mississippi River The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it fl ...

north towards Fort Madison. US 218 travels northwesterly for almost along a two-lane road. As it approaches Donnellson, it meets up with and joins

Iowa Highway 27 O scale (or O gauge) is a scale commonly used for toy trains and rail transport modelling. Introduced by German toy manufacturer Märklin around 1900, by the 1930s three-rail alternating current O gauge was the most common model railroad sc ...

(Iowa 27), the Avenue of the Saints. The two highways head north on a four-lane expressway. In Donnellson, they meet Iowa 2 at a

diamond interchange A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road. Design The freeway itself is grade-separated from the minor road, one crossing the other over a bridge. Approaching the ...

. Further north, and east of

Houghton Houghton may refer to: Places Australia * Houghton, South Australia, a town near Adelaide * Houghton Highway, the longest bridge in Australia, between Redcliffe and Brisbane in Queensland * Houghton Island (Queensland) Canada *Houghton Township, ...

, they intersect Iowa 16 at an at-grade intersection. Prior to crossing the

Skunk River The Skunk River is a tributary of the Mississippi River in the state of Iowa in the United States. Geography The Skunk River rises in two branches, the South Skunk ( long) and the North Skunk ( long).U.S. Geological Survey. National Hydrography ...

, the roadway angles to the northeast and a

freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms ...

bypass of Mount Pleasant begins. From the east, the highways are joined by US 34 and Iowa 163. The four highways loop around the city's eastern side and begin traversing the northern side when US 34 and Iowa 163 split away to continue bypassing Mount Pleasant; US 218 and Iowa 27 continue north.

Minnesota

US 218 enters the state at Lyle, in

Mower County Mower County () is a county in the U.S. state of Minnesota. As of the 2020 census, the population was 40,029. The county seat is Austin. Mower County comprises the Austin Micropolitan Statistical Area and is included in the Rochester-Austin Co ...

. It follows along the east side of the Iowa, Chicago, and Eastern Railroad line as it continues northward through farm fields. Southeast of Austin, US 218 angles northeastward to bypass the city, its former route following County Road 45 (CR 45) into town. US 218 passes by the Austin Municipal Airport just before its interchange with I-90. The highway runs concurrently with I-90 for nearly through northern Austin. When US 218 departs from the Interstate and turns back north, it becomes a four-lane divided highway for a short distance. After its junction with State Highway 251 (MN 251), the highway angles north-northwestward again following the IC&E rail line, this time on the west side of the tracks. The highway enters Dodge County for less than a mile, then reaches Steele County, Blooming Prairie, and an eight-block-long concurrency with MN 30. It continues north-northwesterly after leaving Blooming Prairie, traveling through predominantly agricultural scenery. It passes by Oak Glen Lake before going through the unincorporated community of Bixby. After passing through the unincorporated community of Pratt, US 218 meets US 14 at a folded diamond interchange. US 218 runs westward concurrently with US 14, while its historic route through downtown Owatonna continues ahead as CR 48. After an interchange with CR 45 (former US 65), US 14/US 218 passes by Kaplan's Woods Park and reaches I-35, where US 218 ends. Legally, the Minnesota section of US 218 is defined as Route 40 in Minnesota Statutes § 161.114(2).

History

In 1913, work on the road that is now US 218 was begun. At this time it was called the Red Ball Route. It was called this because the original route was marked with poles which had red balls, in

diameter In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid fo ...

, mounted on each side. In 1920, the Minnesota portion of the route was designated as

Constitutional Route In the U.S. state of Minnesota, a legislative route is a highway number defined by the Minnesota State Legislature. The routes from 1 to 70 are constitutional routes, defined as part of the Babcock Amendment to the Minnesota State Constitution, p ...

40, as part of the Babcock Amendment that established the Minnesota trunk highway system. In

Iowa Iowa () is a state in the Midwestern region of the United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states: Wisconsin to the northeast, Illinois to th ...

, US 218 was extended from its previous southern terminus, at its intersection with U.S. 30 in Benton County, in 1934 when U.S. Highway 161 was split and renamed. The former U.S. 161 had extended from Dubuque, through Cedar Rapids, to Keokuk. After the split, the section of former US 161 from Dubuque to Cedar Rapids extended US 151 south, and the section of US 30 from the former terminus of US 218 to its intersection with the former US 161 in Cedar Rapids, along with the section of former US 161 from Cedar Rapids to Keokuk, extended US 218 south. In 1965, US 218 was rerouted along bypasses of

Austin, Minnesota Austin is a city in, and the county seat of, Mower County, Minnesota, United States. The population was 26,174 at the 2020 census. The town was originally settled along the Cedar River and has two artificial lakes, East Side Lake and Mill Po ...

and

, the latter following a route that would later become the US 14 bypass of that city as well.

Future

The Iowa Department of Transportation has plans to rebuild the AOTS interchange with I-80 and I-380/US 218/Iowa 27 in

Coralville Coralville is a city in Johnson County, Iowa, United States. It is a suburb of Iowa City and part of the Iowa City Metropolitan Statistical Area. The population was 22,318 at the 2020 census. History Coralville is the location of the Edgewater ...

. As the Eastern Iowa region has grown, traffic has increased, and the current arrangement of the interchange with its cloverleaf ramps has been deemed unsafe. The Iowa DOT proposes to rebuilt the interchange as a turbine interchange, which will eliminate weaving. The project is scheduled to begin in 2020.

Major intersections

Related routes

Mount Pleasant business route

U.S. Highway 218 Business (US 218 Bus.) was designated along a former routing of US 218 through Mount Pleasant, the northernmost are officially known as Iowa 438. The routing was created as a result of construction of the

corridor through Iowa. The new Avenue of the Saints corridor took US 218/Iowa 27 and US 34 around the eastern and northern edges of Mount Pleasant. The Iowa 438 section of US 218 Bus. serves as a connector from southbound US 218/Iowa 27 to westbound US 34.

Waverly business route

US 218 Business (US 218 Bus.) in Waverly was designated December 2, 1998, on the old segment of US 218 after it was routed around Waverly. The business route spans . It intersects Iowa 3 in downtown Waverly and the two routes run concurrently for about . South of Iowa 3, US 218 Bus. is officially known as Iowa 116. US 218 Bus. begins at exit 198 on US 218/Iowa 27 south of Waverly and ends at exit 205 on US 218/Iowa 27.

Charles City business route

US 218 Business (US 218 Bus.) in Charles City was designated along the old alignment of US 218 in 2000 after the construction of the

corridor created a bypass around Charles City. Upon its designation, the route was officially known by two Iowa state highways: Iowa 337 and Iowa 162. Iowa 337 was turned over to local jurisdictions in 2001 and Iowa 162 was turned over in 2006 after US 18 was relocated through Charles City.

References

External links