Iowa Highway 12
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| Iowa Highway 12 |
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| Length: | 39 mi[1] (63 km) | ||||||||
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| Formed: | July 1, 1920 | ||||||||
| South end: |   US 20/US 75 (official).svg/20px-I-29_(IA).svg.png){kind=small} I-29 (exit 151) in Sioux City (signed) |
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| Major junctions: |
 IA 3 overlap between Westfield and Akron |
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| North end: |  IA 10 in Hawarden |
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| Counties: | Woodbury, Plymouth, Sioux | ||||||||
| Major cities: | Sioux City, Westfield, Akron, Chatsworth, Hawarden | ||||||||
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Iowa Highway 12 is a state highway that runs from north to south in northwestern Iowa. Highway 12 is a short state highway in Iowa, with a length of 39 miles (63 kilometers) long. The highway lies east of the Big Sioux River, which separates Iowa from South Dakota, for its length.
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[edit] Termini
The official southern terminus of Iowa Highway 12 is in eastern Sioux city at U.S. 20 and U.S. 75, though the signed southern terminus of is in Sioux City at an interchange with Interstate 29. The northern terminus of Iowa 12 is in Hawarden at an intersection with Iowa Highway 10.
[edit] Route description
Iowa Highway 12 begins at U.S. 20 and U.S. 75 signed as Business US 20. It continues west through Sioux City and becomes concurrent with Interstate 29 going west to Riverside Boulevard, where signage begins. It follows Riverside Boulevard while it passes through the Riverside neighborhood in Sioux City. It passes past Stone State Park in northwestern Sioux City and continues northwest towards Westfield. It turns northeast to enter Westfield, then intersects Iowa Highway 3. Iowa 12 and Iowa 3 overlap and go northeast to Akron, where Iowa 3 turns east. Iowa 12 continues northeast through Chatsworth and ends at Iowa 10 in Hawarden.
[edit] History
Iowa Highway 12 was designated as a state highway in 1920. It originally went between Hamburg and Akron. It was shortened to Missouri Valley in 1924, and Sioux City in 1926. In 1931, it was extended north to Hawarden. In 1958, it was shortened to its intersection with I-29, but then in 1979, was extended east along I-29 and the newly formed Business Route 20 to end at the new U.S. 20 bypass in eastern Sioux City. In 2000, signage for this extension was removed and signage for Iowa 12 ended at I-29, though officially, Iowa 12 continues east through Sioux City.[1]
[edit] Major intersections
| County | Location | Mile | Roads intersected | Notes |
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| Woodbury | Sioux City | US 20 / US 75 |
Southern terminus | |
 US 75 Bus. (Lewis Boulevard) |
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  I-29 South / US 77 South (Wesley Parkway) / US 20 Bus. |
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| I-29 North |
Signed south end of  IA 12 |
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| Plymouth | Westfield | IA 3 West |
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| Akron | IA 3 East (South Street) |
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 To SD 48 |
Former  IA 403 |
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| Sioux | Hawarden | IA 10 North (Avenue E) / IA 10 South (10th Street) |
Northern Terminus |
[edit] References
- ^ a b Jason Hancock. Highway 12. Iowa Highways. Retrieved on November 9, 2007.
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