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Iowa 10 | |
Length: 105 miles/169 kilometers Western terminus: South Dakota state line (Big Sioux River) near Hawarden; continuation of SD 46 Eastern terminus: IA 4 near Havelock Terminus photos Counties: Sioux, O'Brien, Clay, Buena Vista, Pocahontas Cities along route: Hawarden, Orange City, Alton, Granville, Paullina, Sutherland, Peterson, Sioux Rapids, Laurens, Havelock NHS: The segment through Orange City and Alton Multiplexes: |
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History | |
Designated: July 1, 1920, from Hawarden to McGregor via Pocahontas, Humboldt,
Hampton, Waverly, Oelwein, Strawberry Point, and Elkader Paving history: There were no paved segments at designation. |
Iowa 11 |
Designated: July 1, 1920 Decommissioned: September 4, 1941 Original northern terminus: Minnesota state line south of Prosper, MN; it was truncated at Calmar on March 3, 1925 Original southern terminus: Mount Sterling. On February 18, 1924, the south end was moved to the Missouri state line south of Milton to connect with MO 15, sharing part of IA 3 (I) east of there. It was truncated at Cedar Rapids in 1926. Counties: Winneshiek, Fayette, Buchanan, Benton, Linn, Johnson (1920-1926), Washington (1920-1926), Jefferson (1920-1926), Van Buren (1920-1926) Paving history: There were no paved segments at designation. For its estimated city street alignment in Iowa City, see the Highways of Iowa City page. |
Iowa 12 | |
Length: 39 miles/63 kilometers Northern terminus: IA 10 in Hawarden Southern terminus: I-29 (exit #151) in Sioux City Terminus photos Counties: Sioux, Plymouth, Woodbury Cities along route: Hawarden, Chatsworth, Akron, Westfield, Sioux City NHS: The segments through Sioux City Multiplexes: 5 miles with IA 3, from Akron to near Westfield. |
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History | |
Designated: July 1, 1920, to a piece of the Custer Battlefield Highway from Akron to Hamburg via Sioux City, Onawa, Council Bluffs, and Glenwood (overlapping with IA 4 from Glenwood to Hamburg). Paving history: There were no paved segments at the time of designation. |
Iowa 13 | |
Length: 85 miles/137 kilometers Northern terminus: US 52 near Froelich Southern terminus: US 30 near Bertram Terminus photos Counties: Clayton, Delaware, Linn Cities along route: Elkader, Strawberry Point, Manchester, Ryan, Coggon, Central City, Marion, Cedar Rapids, Bertram NHS: From IA 3 in Strawberry Point to the south end Expressway segments: 19 miles between Central City and the southern terminus. Multiplexes: |
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History | |
Designated: July 1, 1920, from McGregor to the Missouri border north of Lancaster, MO, via Elkader, Manchester, Cedar Rapids, Sigourney, Ottumwa, and Bloomfield (incorporating the old Cedar Rapids-Ottumwa-McGregor Trail) Paving history: At designation, the only paved segment was from present-day 40th Street NE in Cedar Rapids to Indian Creek in Marion. |
Iowa 14 | |
Length: 188 miles/302 kilometers Northern terminus: US 18 in Charles City Southern terminus: IA 2 in Corydon Terminus photos Counties: Floyd, Butler, Grundy, Marshall, Jasper, Marion, Lucas, Wayne Cities along route: Charles City, Greene, Allison, Parkersburg, Grundy Center, Marshalltown, Laurel, Newton, Lambs Grove, Monroe, Knoxville, Chariton, Corydon NHS: From US 20 in Grundy County through Knoxville Commercial and Industrial Network: Between US 20 and IA 330 in Grundy and Marshall counties Multiplexes: |
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History | |
Designated: July 1, 1920, between Charles City and the Missouri state line at Lineville. Paving history: There were no paved segments at designation. |
Iowa 15 (I) |
Designated: July 1, 1920 Decommissioned: May 4, 1935 Original northern terminus: Minnesota state line near Emmons, MN Original southern terminus: Missouri state line south of Redding; it was truncated at Ames on October 16, 1926 Counties: Worth, Winnebago, Hancock, Wright, Hamilton, Story, Polk (1920-1926), Warren (1920-1926), Madison (1920-1926), Union (1920-1926), Ringgold (1920-1926) Paving history: At the time of designation, the segment from Des Moines to Fort Des Moines was the only paved segment. |
Iowa 15 (II) |
Designated: June 22, 1937 Decommissioned: January 1, 1969 Original northwestern terminus: IA 137 in Eddyville Original southeastern terminus: US 63 in Ottumwa Counties: Wapello Paving history: Unpaved at designation, the road had a bituminous surface when it was decommissioned. Replaced by: IA 23 (III) |
Iowa 15 | |
Length: 64 miles/103 kilometers Northern terminus: Minnesota state line south of Fairmont, MN; continuation of MN 15 Southern terminus: IA 3 east of Pocahontas Terminus photos Counties: Emmet, Kossuth, Palo Alto, Humboldt, Pocahontas Cities along route: Armstrong, Fenton, West Bend, Rolfe NHS: The multiplexed segments with IA 9 and IA 18 Multiplexes: |
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History | |
Designated: January 1, 1969, along the former IA 44 (I). Paving history: At the time of designation, most of the road was paved except for the segment between the Minnesota state line and the junction with IA 43 east of Ringsted. That segment had a bituminous surface until it was paved in 1975. |
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Notes | |
From its designation until July 1, 2003, there were two IA 15's as a second route connecting to Missouri's road of the same number existed in Van Buren County (see below). The duplication ended with the latter's decommissioning, which came as a result of legislation passed in the spring of 2003. |
Iowa 15 (former southern leg) |
Designated: January 1, 1969 Decommissioned: July 1, 2003 Original northern terminus: IA 2 at Milton Original southern terminus: Missouri state line; continued as MO 15, which still exists Counties: Van Buren Paving history: The entire road was paved at the time of designation. Replaced by: County Road V56 This highway replaced IA 23 (II) in a numbering swap, and it created a rare duplication with the longer IA 15 in northern Iowa (which was also designated as a result of the Great Renumbering). The southern IA 15 connected with MO 15, while the northern IA 15 connects with MN 15, which intersects with I-90 at Fairmont, MN. Both changes were obviously made with the neighboring states' highways in mind, as the two highways were far enough apart to differentiate between them. As of April 2004, there are "TO MO 15" assemblies with MO 15 shields at IA 2. Terminus photos |
Iowa 16 (I) |
Designated: July 1, 1920 Decommissioned: October 23, 1930 Original northern terminus: Minnesota state line south of Elmore, MN Original southern terminus: Missouri state line northeast of Hopkins, MO Counties: Kossuth, Humboldt, Webster, Greene (1920-1926), Boone (1926-1930), Guthrie (1920-1926), Dallas (1926-1930), Adair (1920-1926), Madison (1926-1930), Union, Adams (1920-1926), Taylor (1920-1926), Ringgold (1926-1930) Paving history: There were no paved segments at designation. |
Iowa 16 | |
Length: 65 miles/105 kilometers Western terminus: US 34 near Agency Eastern terminus: US 61 at Wever Terminus photos Counties: Wapello, Davis, Van Buren, Henry, Lee Cities along route: Eldon, Houghton Multiplexes: |
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History | |
Designated: December 1, 1930, between IA 1 north of Keosauqua and Burlington Paving history: At designation, the only paved segment was from Hillsboro to US 218 east of Houghton. It inherited the paved IA 98 segment between US 34 and Eldon in 1945. For city street alignments in Burlington, see Jeff Morrison's Burlington Highway Chronology page. |
Iowa 17 (I) |
Designated: July 1, 1920 Decommissioned: January 1, 1969 Original northern terminus: IA 4 at Spirit Lake; it was truncated at IA 9 at Estherville in 1926, eliminating a redundant concurrency with that highway, and was extended into Minnesota on December 1, 1930. Original southern terminus: IA 8 (later US 34) at Albia; it was truncated at IA 2 (now US 6) at Adel on October 16, 1926, and moved to IA 7 in Panora in 1941. Counties: Emmet, Palo Alto, Pocahontas, Calhoun, Greene, Boone (1920-1941), Guthrie (1941-1969), Dallas (1920-1941), Polk (1920-1926), Warren (1920-1926), Marion (1920-1926), Monroe (1920-1926) Paving history: At designation, the only paved segment was through Polk County. |
Iowa 17 | |
Length: 103 miles/166 kilometers Northern terminus: US 18 at the Kossuth/Hancock county line near Wesley Southern terminus: IA 141 at Granger Terminus photos Counties: Kossuth, Hancock, Humboldt, Wright, Hamilton, Boone, Dallas, Polk Cities along route: Corwith, Renwick, Goldfield, Eagle Grove, Webster City, Stanhope, Luther, Madrid, Granger NHS: The multiplex with US 20 and the segment through Webster City Multiplexes: |
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History | |
Designated: January 1, 1969, along IA 60 (I)
north of Des Moines. Paving history: At the time of designation, most of the road was paved except for the segment from Webster City to old US 30 east of Boone, which had a bituminous surface. |
Iowa 18 |
Designated: July 1, 1920 Decommissioned: October 16, 1926 Original northern terminus: IA 23 at Sac City Original southern terminus: Missouri state line at Braddyville Counties: Sac, Carroll, Audubon, Cass, Montgomery, Page Paving history: The only paved segment was a small piece in Atlantic, which was also part of IA 2 (I), that dated back from about 1915. Major alignment changes: In July 1922, it was shifted two miles east between Carroll and Templeton; the former route followed present-day Jade Avenue between 200th and 300th Streets. Replaced by: US 71; the number has since been used for US 18. |
Iowa 19 (I) |
Designated: July 1, 1920 Decommissioned: November 11, 1926 Original western terminus: South Dakota state line (Big Sioux River) near Canton, SD Original eastern terminus: Wisconsin state line (Mississippi River) at Marquette; the number continued into Wisconsin. Counties: Lyon, Sioux, O'Brien, Clay, Palo Alto, Kossuth, Hancock, Cerro Gordo, Floyd, Chickasaw, Fayette, Allamakee, Clayton Paving history: At the time of designation, the segment from Clear Lake to Mason City was paved. According to the DOT's Discovering Iowa's Historic Transportation Milestones book, a mile-long segment of this road west of Mason City was the first concrete-paved highway in Iowa, having been paved in 1913. The segment from Clear Lake to Mason City was fully paved by the end of 1917. |
Iowa 19 (II) |
Designated: May 3, 1927 Decommissioned: March 12, 1958 Original southwestern terminus: Backbone State Park Original northeastern terminus: IA 3 south of Strawberry Point Counties: Clayton Paving history: Unpaved at designation, the road had a bituminous surface at decommissioning. Replaced by: IA 410 |