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| 40-49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60-69 |
| Iowa 50 |
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Designated: July 1, 1920 Decommissioned: July 1, 2003 Original western terminus: IA 16 (I), later US 169, south of Fort Dodge; it was extended westward to Callender on June 4, 1935, but truncated to its original west end at US 169 in 1963 Original eastern terminus: Lehigh Paving history: Unpaved at designation, the segment east of US 169 was paved in 1951. The segment west of US 169 was not paved until 1964, after it was decommissioned. Replaced by: County road, later numbered D43 (in 1964); County Road D43 (at decommissioning) Terminus photos |
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Iowa 51 |
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Length: 11 miles/18 kilometers Northern terminus: IA 9 southwest of Waukon Southern terminus: US 18 in Postville Terminus photos Counties: Allamakee |
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| History | |
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Designated: July 1, 1920, from the Minnesota state line at Eitzen, MN, to Postville. Paving history: Unpaved at designation, the segments from Waukon to a point south of the split with IA 13 was paved in 1934, and the segment from the Yellow River crossing to Postville was paved in 1935. The segment in between had a bituminous surface when IA 51 was straightened on a new paved alignment in 1969. Major alignment changes: |
| Iowa 52 |
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Designated: July 1, 1920 Decommissioned: December 4, 1934 Original western terminus: Elma Original eastern terminus: US 63 in southern Howard County Paving history: There were no paved segments. Replaced by: IA 272; the number has since been used for US 52 |
| Iowa 53 (I) |
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Designated: July 1, 1920 Decommissioned: October 16, 1926 Original western terminus: IA 19 in Nora Springs; it was truncated to a county road junction (now T24) west of Rudd on January 6, 1925. Original eastern terminus: IA 40 in Charles City, via Rockford; it was truncated at IA 14 between the two cities on November 3, 1924, to eliminate the redundant multiplex with IA 14. Paving history: There were no paved segments. Replaced by: IA 147. The renumbering was made because US 53 was expected to go through Iowa, but US 53 became US 55 instead, and IA 53 was reused for the highway that was previously IA 55. |
| Iowa 53 (II) |
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Designated: October 16, 1926 Decommissioned: August 3, 1949 Original northern terminus: Clarksville Original southern terminus: IA 10 (now IA 3) in eastern Butler County Paving history: Unpaved at designation, the road was paved in 1935. Replaced by: IA 188. This was originally IA 55 (I); for a short time in the 1960s, this road was IA 122 (II). |
| Iowa 53 (III) |
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Designated: 1954 Decommissioned: 1969 Original northern terminus: Gowrie Original southern terminus: IA 175 south of Gowrie; this is a former segment of IA 175 that was redesignated when it bypassed the town on a new alignment one year earlier. Paving history: Unpaved at designation, the road had a bituminous surface at the time of decommissioning. Replaced by: Local road (4th Street in Gowrie) |
| Iowa 55 (I) |
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Designated: July 1, 1920 Decommissioned: October 16, 1926 Original northern terminus: Clarksville Original southern terminus: IA 10 (now IA 3) in eastern Butler County Paving history: There were no paved segments. Replaced by: IA 53 (II). Between 1926 and 1934 the number was reserved for US 55. |
| Iowa 55 (II) |
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Designated: December 4, 1934 Decommissioned: July 1, 2003 Original northern terminus: IA 3 (I), later IA 2, east of Promise City Original southern terminus: Seymour Paving history: Unpaved at designation, the road was upgraded from bituminous to paved in 1959. Replaced by: County Road S60. This replaced the former IA 67 upon the commissioning of US 67; incidentally, US 67 had replaced part of old US 55. Terminus photos |
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Iowa 56 |
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Length: 24 miles/39 kilometers Western terminus: IA 150 in West Union Eastern terminus: IA 13 in Elkader Terminus photos Counties: Fayette, Clayton Cities along route: West Union, Elkader |
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| History | |
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Designated: July 1, 1920, between West Union and Guttenberg Paving history: There were no paved segments at designation. A short segment west of Elkader was paved in 1931; the rest of the road was paved in 1955. Major alignment changes: |
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Iowa 57 |
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Length: 44 miles/71 kilometers Western terminus: US 65 northeast of Iowa Falls Eastern terminus: US 218 in Cedar Falls Terminus photos: Counties: Franklin and Hardin (straddling the county line), Butler, Grundy, Black Hawk Cities along route: Ackley, Aplington, Parkersburg, New Hartford, Cedar Falls Multiplexes: 1½ miles with IA 14 in Parkersburg |
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| History | |
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Designated: July 1, 1920, from Grundy Center to Cedar Falls Paving history: There were no paved segments at designation. The original segment was paved in 1931; all future extensions were paved. Major alignment changes: |
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Iowa 58 |
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Length: 12 miles/19 kilometers Northern terminus: The US 218/IA 57 interchange in Cedar Falls Southern terminus: US 63 in Hudson Terminus photos: Counties: Black Hawk Cities along route: Cedar Falls, Hudson NHS: Along expressway segment Freeway segment: 2½ miles, between the north end and University Avenue in Cedar Falls (with IA 27). Expressway segment: 3½ miles, between University Avenue and US 20 in Cedar Falls (with IA 27) Exit lists: Segment between US 20 and US 218, part of a list for the Avenue of the Saints between Cedar Falls and Clear Lake. Multiplexes: |
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| History | |
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Designated: July 1, 1920, as an east-west highway between IA 5 in Iowa Falls and IA 40 in Vinton Paving history: Unpaved at designation, the remaining segment between US 65 and IA 14 west of Grundy Center was paved in 1931. The March 1932 extension was paved, but the extension into Cedar Falls was gravel until it was paved in 1940. Major alignment changes: |
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| Notes | |
IA 58 through Cedar Falls really is part of the
Avenue of the Saints — it bypasses the Waterloo/Cedar Falls area along IA 58 and US 20
rather than following US 218 (the Leo P. Rooff Expressway) as previously thought.
Here is more from a June 25, 1999, e-mail from Mark Hasty:
"I have a hunch that this routing is to keep the heavy through traffic out of downtown Waterloo. US-218 is a rather congested road in the area where it has at-grade intersections, and there wouldn't be any way to control the access along it without effectively dividing Waterloo in half." |
| Iowa 59 |
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Designated: July 1, 1920 Decommissioned: December 4, 1934 Original northern terminus: Chester; it was extended into Minnesota in 1929. Original southern terminus: Missouri state line southwest of Cincinnati; it was truncated at Albia on October 16, 1926 Paving history: There were no paved segments at designation. Replaced by: Was this route supposed to be US 59 instead of US 63? Minnesota highways page author Steve Riner told me in 1998 that he found a 1934 Minnesota state highway map which marked this route as US 59 through Minnesota into Iowa. In early 1934, Minnesota commissioners proposed a new US 59 between Ashland, WI, and Laclede, MO, that would have included all of IA 59 and what was then IA 60 (I) south of Albia. However, Iowa was not in favor of this change because of its reluctance to request new US highways at the time (the only exception was US 275, as Minnesota and Missouri were behind the designation of US 169). No new US highways were created until the American Association of State Highway Officials approved a series of new highways, including the existing US 59 and US 63, at a November 1934 convention in Santa Fe, NM. (See IA 73 (II) and IA 150 for other US highways that weren't.) For maps of its street alignments in Waterloo, see Jeff Morrison's Waterloo/Cedar Falls Highway Chronology page. |