Iowa Highway 175 (Iowa 175) is a main east–west route in the northern portion of the state. The highway has a length of . Iowa Highway 175 enters the state by a Missouri River crossing between

Decatur, Nebraska Decatur is a village in Burt County, Nebraska, United States, adjacent to the upper Missouri River. The population was 481 at the 2010 census. This town is named after one of its incorporators, Stephen Decatur. It developed around a trading post ...

and Onawa. The highway continues westward as Nebraska Highway 51. Iowa 175's eastern terminus is at a

T intersection A three-way junction (or three-way intersection) is a type of road intersection with three arms. A Y junction (or Y intersection) generally has three arms of equal size coming at an acute or obtuse angle to each other; while a T junction (or T ...

with U.S. Highway 63 (US 63) in southwestern

Black Hawk County Black Hawk County is a county in the northeastern part of U.S. state of Iowa. As of the 2020 census, the population was 131,144, making it Iowa's fifth-most populous county. The county seat is Waterloo. Black Hawk County is part of the Water ...

. Despite Iowa 175's length, it only passes through small communities. The largest city on the route is Onawa, whose 2020 census population was 2,906.

Route description

Iowa Highway 175 begins at the eastern end of the Burt County Missouri River Bridge west of Onawa. At Onawa, it intersects

Interstate 29 Interstate 29 (I-29) is an Interstate Highway in the Midwestern United States. I-29 runs from Kansas City, Missouri, at a junction with I-35 and I-70, to the Canada–US border near Pembina, North Dakota, where it connects with Manitoba ...

. At

Turin Turin ( , Piedmontese language, Piedmontese: ; it, Torino ) is a city and an important business and cultural centre in Northern Italy. It is the capital city of Piedmont and of the Metropolitan City of Turin, and was the first Italian capital ...

, it meets Iowa 37 and turns northeast to follow an alignment which lies next to the Maple River. It continues through Castana and meets

Iowa 141 Iowa Highway 141 (Iowa 141) is an east–west highway in the western and central portions of the state. It is the most direct link between Sioux City and Des Moines. It also serves as a freeway link between Des Moines and the outlying com ...

Mapleton Mapleton may refer to: Places Australia * Mapleton, Queensland, a rural town and locality in the Sunshine Coast Region Canada * Mapleton, New Brunswick, a rural community in Kings County * Mapleton, Moncton, New Brunswick, a neighborhood * Maple ...

. At Mapleton, Iowa 175 overlaps

through town. This is a

wrong-way concurrency A concurrency in a road network is an instance of one physical roadway bearing two or more different route numbers. When two roadways share the same right-of-way, it is sometimes called a common section or commons. Other terminology for a concurre ...

, with eastbound Iowa 175 and westbound Iowa 141 routed on one side of the road, and vice versa. It continues northeast from Mapleton through

Danbury Danbury is a city in Fairfield County, Connecticut, United States, located approximately northeast of New York City. Danbury's population as of 2022 was 87,642. It is the seventh largest city in Connecticut. Danbury is nicknamed the "Hat City ...

and

Battle Creek Battle Creek is a city in the U.S. state of Michigan, in northwest Calhoun County, at the confluence of the Kalamazoo and Battle Creek rivers. It is the principal city of the Battle Creek, Michigan Metropolitan Statistical Area (MSA), which encom ...

and meets US 59 west of Ida Grove. After passing through Ida Grove together with US 59, they separate east of Ida Grove. Iowa 175 passes east through

Arthur Arthur is a common male given name of Brittonic languages, Brythonic origin. Its popularity derives from it being the name of the legendary hero King Arthur. The etymology is disputed. It may derive from the Celtic ''Artos'' meaning “Bear”. An ...

and at Odebolt, meets Iowa 39. Further east, Iowa 175 meets US 71. Iowa 175 and US 71 run east, then south, then east again concurrently through Lake View and

Ulmer Ulmer is a German surname meaning "from Ulm". Notable people with the surname include: *Andreas Ulmer (born 1985), Austrian footballer *Christian Ulmer (born 1984), German ski jumper * Edgar G. Ulmer (1904–1972), Austrian-American film director * ...

before separating at

Auburn Auburn may refer to: Places Australia * Auburn, New South Wales * City of Auburn, the local government area *Electoral district of Auburn *Auburn, Queensland, a locality in the Western Downs Region *Auburn, South Australia *Auburn, Tasmania *Aub ...

. Iowa 175 leaves Auburn going east, then passes through Lake City. After Lake City, Iowa 175 meets Iowa 4. The two highways run concurrently through Lohrville before separating. Iowa 175 then passes through Farnhamville and

Gowrie Gowrie ( gd, Gobharaidh) is a region in central Scotland and one of the original Provinces of Scotland, provinces of the Kingdom of Alba. It covered the eastern part of what became Perthshire. It was located to the immediate east of Atholl, an ...

and intersects Iowa 144 before intersecting US 169 at Harcourt. They continue east together before separating before

Dayton Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater Da ...

. After passing through Stratford, Iowa 175 meets Iowa 17 at Stanhope. It leaves Stanhope going east and meets US 69 south of Jewell. They run together going north into Jewell before Iowa 175 turns east. After passing through Ellsworth, Iowa 175 intersects

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 ...

. Iowa Highway 175 then continues east of I-35 by passing through

Radcliffe Radcliffe or Radcliff may refer to: Places * Radcliffe Line, a border between India and Pakistan United Kingdom * Radcliffe, Greater Manchester ** Radcliffe Tower, the remains of a medieval manor house in the town ** Radcliffe tram stop * ...

before meeting US 65 in

Hubbard Hubbard may refer to: Places Canada *Hubbard, Saskatchewan *Hubbards, Nova Scotia Canada/United States * Mount Hubbard, a mountain on the Alaska/Yukon border *Hubbard Glacier, a large freshwater glacier in Alaska and Yukon Greenland *Hubbard Gla ...

. Iowa 175 and US 65 then go north, then east, together before separating. Iowa 175 then goes east through Eldora and meets Iowa 14 west of

Grundy Center Grundy Center is a city in Grundy County, Iowa. The population was 2,796 at the time of the 2020 United States Census, 2020 census, a 7.7% increase from 2,596 at the 2000 census. Grundy Center is also the county seat of Grundy County. Grundy Cente ...

. Iowa 175 continues east with Iowa 14 before separating in Grundy Center. It turns slightly southeasterly while passing through

Morrison Morrison may refer to: People * Morrison (surname), people with the Scottish surname Morrison * Morrison Heady (1829–1915), American poet * Morrison Mann MacBride (1877–1938), Canadian merchant Places in the United States * Morrison, Colorad ...

and Reinbeck, then turns east and ends at US 63 south of

Hudson Hudson may refer to: People * Hudson (given name) * Hudson (surname) * Henry Hudson, English explorer * Hudson (footballer, born 1986), Hudson Fernando Tobias de Carvalho, Brazilian football right-back * Hudson (footballer, born 1988), Hudso ...

History

Iowa Highway 175 was originally designated in 1930 as a very short spur from US 65 to Hubbard but extended west to Stratford by 1937. Iowa 175 extended west to Auburn in October 1940, replacing Iowa 91, a spur route from Dayton to US 169, Iowa 47, a spur route from US 169 to Farnhamville (which had extended west from Gowrie on December 20, 1938), Iowa 287, a spur route from Farnhamville to Iowa 17 (now Iowa 4), and Iowa 188 (which was renumbered from Iowa 151 in 1938), which went from Iowa 17 to Auburn. In January 1948, Iowa 175 extended west to US 75, replacing Iowa 35 and a duplex with Iowa 37 was created; Iowa 37 would be truncated to Iowa 175 on May 11, 1966. By 1955 Iowa 175 had extended westward to Nebraska, replacing Iowa 165. The final segment of Highway 175 was commissioned in 1969, extending the highway eastward from Hubbard to its present eastern terminus.

Major intersections

References

External links

{{Attached KML
The Iowa Highways Page: Highway 175
at Iowa Highway Ends

175 Year 175 ( CLXXV) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Piso and Iulianus (or, less frequently, year 928 ''Ab urbe condita ...

Transportation in Monona County, Iowa Transportation in Woodbury County, Iowa Transportation in Ida County, Iowa Transportation in Sac County, Iowa Transportation in Calhoun County, Iowa Transportation in Webster County, Iowa Transportation in Hamilton County, Iowa Transportation in Hardin County, Iowa Transportation in Grundy County, Iowa Transportation in Black Hawk County, Iowa