Iowa Highway 4

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Iowa Highway 4 marker

Iowa Highway 4
Route information
Maintained by Iowa DOT
Length: 146.343 mi[1] (235.516 km)
Existed: January 1, 1969 (1969-01-01) – present
History: 1920–1968: Iowa 17
Major junctions
South end: Iowa 44 / CR P28 at Panora
 
North end: MN 4 north of Estherville
Location
Counties:
Highway system
Iowa 3 Iowa 5

Iowa Highway 4 (Iowa 4) is a state highway which runs from north to south across the state of Iowa. It is 146 miles (235 km) long, beginning at an intersection with Iowa Highway 44 in Panora and ending at the Minnesota state line north of Estherville. It continues north as Minnesota State Highway 4. The route was created on January 1, 1969, when several route designations were changed to match other states' route numbers. Before 1969, Iowa 4 was known as Iowa 17.

Route description[edit]

Iowa Highway 4 begins at Panora at Iowa 44. It goes north and is briefly overlapped with Iowa Highway 141 north of Yale. It continues north until Jefferson, where it intersects U.S. Route 30 (US 30). It goes north, then turns west to enter Churdan, then turns north until meeting Iowa 175. At Iowa 175, the highway turns west, with Iowa 175, passing through Lohrville. It turns north west of Lohrville, and continues north through Rockwell City, where it intersects US 20.

Iowa 4 along Broadway in Emmetsburg

After a short concurrency with US 20, Iowa 4 continues north, and intersects Iowa 7. They overlap through Pomeroy, then Iowa 4 goes north through Pocahontas, which is where it intersects Iowa 3. North of Pocahontas, Iowa 4 meets Iowa 10 east of Havelock before passing through Mallard. Iowa 4 then goes north into Emmetsburg, where it meets US 18.

Iowa 4 and US 18 continue west of Emmetsburg together, then Iowa 4 turns north to go through Graettinger. Iowa 4 then turns slightly northwesterly to go through Wallingford, before meeting Iowa 9 in Estherville. Iowa 4 then goes northeasterly out of Estherville before ending at the Minnesota border.

History[edit]

Iowa 4 was created on January 1, 1969, during an effort by the Iowa State Highway Commission (IHC) to renumber Iowa's state highways. The goal of the effort was to reduce confusion among drivers crossing into Iowa from other states by aligning Iowa's route numbers with their adjoining routes in other states.[2] However, most of the route on which Iowa 4 is now applied has been in the primary highway system since it was created in 1920.[3]

At its designation, Primary Road No. 17 was a much longer route than Iowa 4 is today. Primary Road No. 17 began in Albia at Primary Road Nos. 8 (now US 34) and 59 (now Iowa 5) and headed northwest through Knoxville and Des Moines. It continued west and north by passing through Adel and Perry before turning more northerly at Jefferson. It entered Rockwell City, Pocahontas, Emmetsburg, and Estherville. It ended at the intersection of Primary Road Nos. 4 (now US 71) and 9 in Spirit Lake.[3]

In 1926, when the U.S. Highway System was introduced, Iowa 17 was shortened on both ends. A service bulletin from the IHC in late 1925 listed Iowa 17 would begin in Jefferson and follow the same route to Estherville.[4] However, maps published the highway commission in 1927 show the route extended south to Adel ending at US 6.[5] By 1931, it had been extended north to the Minnesota state line along what was then Emmet County Road H (CR H).[6][7]

Ten years later, the southern end of the route shifted west to its current in end Panora, replacing Iowa 150 in its entirety. The sections that were duplicate routes with US 30, US 169, and Iowa 141 were removed, while the standalone section between Grand Junction and Perry became part of Iowa 144.[8] Over the next 28 years, sections of Iowa 17 were straightened and the paving of the route was completed.[9]

As of 2011, construction of a new four-lane expressway for US 20 has caused a portion of that route to be rerouted onto Iowa 4. The expressway begins eastbound at Iowa 4 and extends across the rest of the state to Dubuque.[10]

Major intersections[edit]

County Location mi[1] km Destinations Notes
Guthrie Panora 0.000 0.000 Iowa 44 (Main Street) / CR P28 (Southeast 3rd Street)
Richland Township 10.251 16.497 Iowa 141 east South end of Iowa 141 overlap
10.697 17.215 Iowa 141 west North end of Iowa 141 overlap
Greene Jefferson 24.004 38.631 US 30
Calhoun Reading Township 44.908 72.272 Iowa 175 east / CR P13 north South end of Iowa 175 overlap
Calhoun Township 53.789 86.565 Iowa 175 west North end of Iowa 175 overlap
Twin Lakes Township 67.449 108.549 US 20
ButlerSherman
township line
72.180 116.162 Iowa 7 east / CR D15 west South end of Iowa 7 overlap
Pocahontas BellvilleColfax
township line
77.106 124.090 Iowa 7 west / CR C66 east North end of Iowa 7 overlap
Pocahontas 87.078 140.138 Iowa 3 (Elm Street South)
Havelock 93.617 150.662 Iowa 10 west (Cummins Road)
Palo Alto Emmetsburg 113.358 182.432 US 18 east (Main Street) South end of US 18 overlap
Emmetsburg Township 118.026 189.944 US 18 west North end of US 18 overlap
Emmet Estherville 138.132 222.302 Iowa 9 (Central Avenue)
Ellsworth Township 146.343 235.516 MN 4
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

  1. ^ a b "2013 Volume of Traffic on the Primary Road System of Iowa" (PDF). Iowa Department of Transportation. January 1, 2013. Retrieved October 1, 2010. 
  2. ^ "New Iowa Map Goes on Sale". Telegraph-Herald (Dubuque, Iowa). January 14, 1969. Retrieved October 12, 2011. 
  3. ^ a b Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1919. Retrieved October 12, 2011. 
  4. ^ Service Bulletin (Iowa State Highway Commission) XIII (10–11–12): 8. October–November–December 1925.  Check date values in: |date= (help); Missing or empty |title= (help)
  5. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1927. Retrieved October 12, 2011. 
  6. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1930. Retrieved October 12, 2011. 
  7. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1931. Retrieved October 12, 2011. 
  8. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1941. Retrieved October 12, 2011. 
  9. ^ Iowa State Highway Map (PDF) (Map). Iowa State Highway Commission. 1968. Retrieved October 12, 2011. 
  10. ^ Transportation Map (Map). Iowa Department of Transportation. 2011. Retrieved October 12, 2011. 

External links[edit]

Route map: Bing