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| 30-39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50-59 |
| Iowa 40 (I) |
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Designated: July 1, 1920 Decommissioned: October 16, 1926 Original northern terminus: Minnesota state line south of Lyle, MN Original southern terminus: IA 20 in Keokuk Paving history: There were no paved segments at designation. Major alignment change: On July 28, 1924, it was straightened between Mount Pleasant and a point north of Donnellson. This created two spurs, IA 125 to serve Salem, and later IA 133 (I) to serve Oakland Mills State Park. Replaced by: IA 40 was originally assigned to the Red Ball Route in eastern Iowa. Note: State highway maps prior to 1926 showed that IA 5 (I) and IA 40 had run on different alignments between Cedar Falls and Waterloo than US 20 and 218 did, with IA 40 running north of the Cedar River. However, the Highway Commission's Service Bulletin for the fall of 1925 noted that US 218 would replace the entire route of IA 40 north of US 30, but US 218 was routed south of the Cedar River. Waterloo's request to have US 218 run north of the Cedar was denied at a Highway Commission meeting on December 14, 1926; however, it is unknown at this point whether IA 5 and 40 switched routes before the US highways were signed. For a map of its street alignment through Waterloo and Cedar Falls in 1925, see Jeff Morrison's Waterloo/Cedar Falls Highway Chronology page. For a map of its street alignment through Cedar Rapids in 1926, see the Highways of Cedar Rapids page. For a map of its estimated street alignment through Iowa City in 1925, see the Highways of Iowa City page. |
| Iowa 40 (II) |
| Designated: October 16, 1926 Decommissioned: July 1, 2003 Original northern terminus: IA 3 (I), later IA 2, west of Corydon Original southern terminus: Allerton Paving history: Unpaved at designation, it had a bituminous surface until it was paved in 1979. Replaced by: County Road S26; this replaced a former segment of IA 14. Terminus photos |
| Iowa 41 |
| Designated: July 1, 1920 Decommissioned: July 1, 2003 Original northern terminus: IA 8 (I), later US 34, in central Mills County Original southern terminus: Malvern Paving history: Unpaved at designation, the road was paved in 1929. Replaced by: County Road L63. Terminus photos |
| Iowa 42 |
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Designated: July 1, 1920 Decommissioned: 1980 Original western terminus: IA 4, later US 275, south of Sidney Original eastern terminus: Riverton Paving history: Unpaved at designation, it had a bituminous surface until it was paved in 1975. Replaced by: County Road J46. The piece of IA 42 inside the Riverton city limits remained under state control until 1984. Former terminus photos |
| Iowa 43 |
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Designated: July 1, 1920 Decommissioned: 1980 Original northern terminus: Minnesota state line south of Fairmont, MN; it was truncated at a point two miles east of Ringsted on May 22, 1934. Original southern terminus: IA 9 in Armstrong; it was extended southward and westward to Ringsted on January 8, 1931. Paving history: Unpaved at designation, the remaining segment east of Ringsted had a bituminous surface until it was paved in 1975. Replaced by: |
| Iowa 44 (I) |
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Designated: July 1, 1920 Decommissioned: January 1, 1969 Original northern terminus: Rolfe; it was extended to US 18 near Whittemore on October 2, 1928, and to the Minnesota state line along part of IA 43 on May 22, 1934. Original southern terminus: IA 10, later IA 3, in eastern Pocahontas County. Paving history: There were no paved segments at designation. Major alignment change: IA 44 replaced IA 358, which straddled the Palo Alto/Kossuth county line, in 1962. In return IA 358 was given part of old IA 44 into Whittemore. Replaced by: IA 15 (northern leg) |
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Iowa 44 |
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Length: 105 miles/169 kilometers Western terminus: US 30 northeast of Logan Eastern terminus: IA 141 in Grimes Terminus photos Counties: Harrison, Shelby, Audubon, Guthrie, Dallas, Polk Cities along route: Portsmouth, Harlan, Kimballton, Guthrie Center, Panora, Dallas Center, Grimes |
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| History | |
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Designated: January 1, 1969, along sections of IA 39 (I) (between
US 30 and Portsmouth) and IA 64 (from Portsmouth to Grimes) Paving history: The entire road was paved at the time of designation except for the segment between US 30 and the Harrison/Shelby county line, which had a bituminous segment until it was paved in 1978. |
| Iowa 45 |
| Designated: July 1, 1920 Decommissioned: July 1, 2003 Original western terminus: IA 4 (I), now US 59, in Crawford County Original eastern terminus: Manilla Paving history: Unpaved at designation, the remaining segment from IA 46 (I) to Manilla was paved in 1938. Major alignment change: On November 27, 1928, IA 45 became a north-south spur between IA 46 (I), later IA 141, and Manilla after 46 superseded 45's east-west segment. Replaced by: County Road M55 (at decommissioning) Terminus photos |
| Iowa 46 (I) |
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Designated: July 1, 1920 Decommissioned: April 1, 1941 Original western terminus: Manning; it was extended westward to IA 4 (now US 59) west of Manning on November 27, 1928, replacing part of IA 45 Original eastern terminus: Coon Rapids. It was extended eastward to IA 25 at Bayard in 1922; to Bagley on December 1, 1930; and to IA 17 (now IA 144) in Perry on May 27, 1931. Paving history: There were no paved segments at designation. Major alignment changes: An alignment shift onto a new gravel road between Dawson and Perry in November 1935 created IA 335 (I) to serve Dawson. An alignment shift between IA 150 (now 4) west of Jamaica and Dawson on November 24, 1936, created IA 342 serve Jamaica. Replaced by: IA 141 |
| Iowa 46 (II) |
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Designated: 1942 or 1943 Decommissioned: 1950 Original northern terminus: IA 90 (on Grand Avenue at the time) in downtown Des Moines Original southern terminus: IA 28 (on Army Post Road at the time) in Fort Des Moines, now part of the city of Des Moines Paving history: The entire road was paved at the time of designation. Replaced by: Local city streets (mostly SW 9th Street, but it followed 9th, Mulberry, and 7th Streets to Clifton Avenue out of downtown). It replaced part of IA 28 after it was realigned. For maps of the route, see the Highways of Des Moines page. |
| Iowa 46 (III) |
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Designated: September 22, 1953 Decommissioned: 1998 Original northern terminus: IA 163 in Des Moines, at the Iowa State Fairgrounds Original southern terminus: IA 5 northwest of Carlisle Paving history: The entire road was paved at the time of designation. Replaced by: City streets (SE 30th Street, Vandalia Road, and SE 43rd Street in Des Moines; Carlisle Road and SE 45th Street in Pleasant Hill; and SE 45th Street in rural Polk County). The old bridge over the Des Moines River was removed in 1998 due to its age and proximity to the new US 65 freeway; cul-de-sacs were built at the ends of the old bridge, and the remaining segments were turned over to the appropriate local jurisdictions. The segments south of Carlisle Road and north of SE 44th Avenue are now closed to public access. This incarnation of IA 46 replaced a 7½-mile segment of IA 60 (I) (now IA 5) after it was realigned onto Army Post Road. For additional information, see the Highways of Des Moines page. Former terminus photos |
| Iowa 47 (I) |
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Designated: July 1, 1920 Decommissioned: October 1940 Original western terminus: Gowrie; it was extended westward to Farnhamville on December 20, 1938 Original eastern terminus: IA 16 (I) east of Gowrie; it was extended eastward to IA 16 (later US 169) near Harcourt on October 16, 1926, upon IA 16's relocation. Paving history: There were no paved segments. Replaced by: IA 175 |
| Iowa 47 (II) |
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Designated: 1951 Decommissioned: 1980 Original western terminus: IA 14 in central Butler County Original eastern terminus: Allison Paving history: Unpaved at designation, it had a bituminous surface until it was paved in 1975 (the first state highway map to show this short road as paved was the 1976 map) Replaced by: Local road (7th Street in Allison) |
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Iowa 48 |
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Length: 48 miles (coincidence, no?)/77 kilometers Northern terminus: US 6 west of Lewis Southern terminus: US 59 in Shenandoah Terminus photos Counties: Cass, Montgomery, Page Cities along route: Griswold, Elliott, Red Oak, Essex, Shenandoah |
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| History | |
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Designated: July 1, 1920, from Red Oak to Shenandoah Paving history: There were no paved segments at designation. Major alignment changes: |
| Iowa 49 |
| Designated: July 1, 1920 Decommissioned: July 1, 2003 Original northern terminus: IA 8 (I), later US 34, in eastern Adams County Original southern terminus: Lenox; on October 6, 1943, it was extended southward to Bedford, replacing part of IA 344 (I). Paving history: There were no paved segments at designation. Replaced by: County Roads N64, J23, N52, J35, and N44, in order from US 34 to IA 2. In the spring of 2003 the 22-mile segment in Taylor County was turned over to the county and the city of Lenox after both jurisdictions agreed to take the road. The segment in Adams County was turned over on July 1 as a result of legislation. Terminus photos |