Iowa Highway 127 is an east–west highway

Highway

A highway is any public road. In American English, the term is common and almost always designates major roads. In British English, the term designates any road open to the public. Any interconnected set of highways can be variously referred to as a "highway system", a "highway network", or a...

 in western Iowa

Iowa

Iowa is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from the Ioway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the French colony of New...

. It has a length of 16 miles (25.7 km). It lies entirely in Harrison County

Harrison County, Iowa

-2010 census:The 2010 census recorded a population of 14,928 in the county, with a population density of . There were 6,731 housing units, of which 5,987 were occupied.-2000 census:...

. Iowa Highway 127's western terminus is at Interstate 29

Interstate 29 in Iowa

In the U.S. state of Iowa, Interstate 29 is a north–south Interstate Highway which closely parallels the Missouri River. I-29 enters Iowa from Missouri near Hamburg and heads to the north-northwest through the Omaha-Council Bluffs and the Sioux City areas. It exits the state by crossing...

 near Mondamin

Mondamin, Iowa

Mondamin is a city in Harrison County, Iowa, United States. The population was 423 at the 2000 census.-Geography:Mondamin is located at .According to the United States Census Bureau, the city has a total area of , all of it land....

, while its eastern terminus is in Logan

Logan, Iowa

Logan is a city in Harrison County, Iowa, United States, along the Boyer River. The population was 1,545 at the 2000 census. It is the county seat of Harrison County. Henry Reel founded Logan in 1867, naming it in honor of General John A. Logan, a favorite army officer.-Geography:Logan's longitude...

 at U.S. Highway 30.

Route description

Iowa Highway 127 begins at an interchange

Interchange (road)

In the field of road transport, an interchange is a road junction that typically uses grade separation, and one or more ramps, to permit traffic on at least one highway to pass through the junction without directly crossing any other traffic stream. It differs from a standard intersection, at which...

 with Interstate 29 (I-29) west of Mondamin

Mondamin, Iowa

Mondamin is a city in Harrison County, Iowa, United States. The population was 423 at the 2000 census.-Geography:Mondamin is located at .According to the United States Census Bureau, the city has a total area of , all of it land....

, traveling east along a two-lane highway. 4/5 mi east of I-29, it meets Harrison County Road K45 (CR K45), which is a former alignment of U.S. Route 75. Three miles east of Mondamin, it meets the southern end of Iowa Highway 183

Iowa Highway 183

Iowa Highway 183 is a state highway in western Iowa. It runs north to south for . It begins at an intersection with Iowa Highway 127 east of Mondamin and ends at an intersection with Iowa Highway 141 in Ute. The highway as currently constituted is the same as it was when it was commissioned in...

, which is part of the Loess Hills Scenic Byway

Loess Hills

The Loess Hills are a formation of wind-deposited loess soil in the westernmost part of Iowa and Missouri along the Missouri River.-Geology:The Loess Hills are generally located between 1 and east of the Missouri River channel...

 (LHSB). The LHSB follows Iowa 127 for 1+1/2 mi before Iowa 127 turns to the east and the LHSB continues south along CR L20. The route travels east for 6 miles (9.7 km), passing through Magnolia

Magnolia, Iowa

Magnolia is a city in Harrison County, Iowa in the United States of America. The population was 200 at the 2000 census.-History:Harrison County was established in 1851 and organized on March 7, 1853. Abram Fletcher, Charles Wolcott and A. D. Jones were appointed by the Iowa General Assembly as...

, after which it turns to the south towards Logan

Logan, Iowa

Logan is a city in Harrison County, Iowa, United States, along the Boyer River. The population was 1,545 at the 2000 census. It is the county seat of Harrison County. Henry Reel founded Logan in 1867, naming it in honor of General John A. Logan, a favorite army officer.-Geography:Logan's longitude...

. The designation ends at U.S. Route 30 in downtown Logan.

History

Iowa Highway 127 originally went traveled between U.S. Route 75 west of Magnolia, where it now meets Harrison CR L20, and U.S. Route 30 in Logan. This intersection is now where it meets Harrison County Road L20. In 1968, upon completion of Interstate 29 west of Mondamin, US 75 was relocated onto I-29 and Iowa 127 was extended west to the interstate.

Major intersections