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| 320-339 | 340 | 341 | 342 | 343 | 344 | 345 | 346 | 347 | 348 | 349 | 360-379 |
| 350 | 351 | 352 | 353 | 354 | 355 | 356 | 357 | 358 | 359 | ||
| Iowa 340 (I) |
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Designated: September 1, 1936 Decommissioned: July 1, 2003 Original northern terminus: US 18, later Business US 18/IA 76, in McGregor Original southern terminus: Pikes Peak State Park Counties: Clayton Paving history: Unpaved at designation, it was paved in 1955. Replaced by: County Road X56 (IA 340 made a turn eastward into the state park before ending) Terminus photos |
| Iowa 340 (II) |
| This designation was given to the former segment of US 34 through Batavia that was bypassed on May 11, 2005. It was transferred to Jefferson County on August 29, 2007, and to the city of Batavia on September 5. |
| Iowa 341 |
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Designated: November 9, 1936 Decommissioned: June 8, 1988 Original northern terminus: (former) Lost Island Lake State Park (now a county park) Original southern terminus: US 18 south of Ruthven Counties: Palo Alto Paving history: Unpaved at designation, the road was paved in 1938. Replaced by: County Road N20. The state assumed jurisdiction of a 0.06-mile (or roughly 320-foot) segment between US 18 and the south city limits of Ruthven that was unsigned, but designated as IA 341, between September 30, 1993, and July 1, 2003. Former terminus photos |
| Iowa 342 (I) |
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Designated: December 8, 1936 Decommissioned: July 1, 1980 Original northern terminus: Jamaica Original southern terminus: IA 46 (later 141) Counties: Guthrie Paving history: Unpaved at designation, it was paved in 1957. Replaced by: County Road P30, plus Railway and Main streets in Jamaica; it was created after IA 46 (I) was relocated. |
| Iowa 342 (II) |
| This designation was given to the former segment of US 63 through Eddyville (between the north city limits and IA 137) in Mahaska and Wapello counties that was bypassed on July 12, 2004. The segment north of Eddyville was transferred to Mahaska County on December 2, 2004, while the city of Eddyville took over its piece on September 1, 2005. |
| Iowa 343 |
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Designated: June 30, 1937 Decommissioned: December 15, 1980 Original northern terminus: Northboro Original southern terminus: IA 333 Counties: Page Paving history: Unpaved at designation, the entire road was gravel at the time of decommissioning (but has since been paved). Replaced by: County Road M44; it replaced a dislocated segment of IA 333. It was decommissioned at the same time that IA 333 was paved in Page County. |
| Iowa 344 (I) |
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Designated: July 20, 1937 Decommissioned: October 6, 1943 Original northern terminus: Lake of Three Fires State Park; it was extended to IA 319 west of Conway on October 11, 1938 Original southern terminus: IA 3 (later IA 2) at Bedford Counties: Taylor Paving history: There were no paved segments. Replaced by: IA 49 |
| Iowa 344 (II) |
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Designated: December 16, 1943 Decommissioned: November 12, 2001 Original western terminus: State fish hatchery Original eastern terminus: US 169 north of Mount Ayr Counties: Ringgold Paving history: Unpaved at designation, the road was gravel at decommissioning (despite what post-1991 maps say) and remains that way today. Replaced by: Local road (210th Street) Former terminus photos |
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Iowa 346 |
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Length: 12 miles/19 kilometers Western terminus: US 218/IA 27 at Nashua Eastern terminus: The US 63/18 junction south of New Hampton Terminus photos Counties: Chickasaw Cities along route: Nashua |
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| History | |
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Designated: September 14, 1937, as a spur from Nashua to Bradford (which does not appear on many maps; it is an unincorporated town two miles east of Nashua) and the Little Brown Church. Paving history: Unpaved at designation, the entire road was paved in 1960. Major alignment changes: |
| Iowa 347 |
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Designated: November 9, 1937 Decommissioned: November 14, 1986 Original western terminus: Nebraska state line at the west edge of Carter Lake Original eastern terminus: Nebraska state line at the east edge of Carter Lake; it connected to Abbott Drive in Omaha (IA 165 in Carter Lake) about a quarter-mile east of there. Counties: Pottawattamie Paving history: The entire road was paved at the time of designation. Replaced by: City street (Locust Street). Like IA 165, it had no numbered counterpart in Omaha. Former terminus photos For maps of the route, see Jeff Morrison's Council Bluffs/Omaha Highway Chronology page. |
| Iowa 348 |
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Designated: November 9, 1937 Decommissioned: 1967 Original northern terminus: North edge of Carter Lake Original southern terminus: IA 347 in Carter Lake Counties: Pottawattamie Paving history: The entire road was paved at the time of designation. Replaced by: City street (9th Street). For maps of the route, see Jeff Morrison's Council Bluffs/Omaha Highway Chronology page. |
| Iowa 349 |
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Designated: January 4, 1938 Decommissioned: July 1, 2003 Original western terminus: Lake Ahquabi State Park Original eastern terminus: The US 65/69 split south of Indianola Counties: Warren Paving history: Unpaved at designation, it was paved in 1957. Replaced by: County Road G58 Terminus photos |
| Iowa 350 |
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Designated: January 5, 1938 Decommissioned: August 20, 1958 Original northwestern terminus: US 6 northwest of Davenport Original southeastern terminus: IA 122 (I) at the "Five Points" intersection (where Division Street, Locust Street, and Hickory Grove Road meet) in Davenport Counties: Scott Paving history: The entire road was paved at the time of designation. Replaced by: City street (Hickory Grove Road). This was formerly a segment of US 6 (and US 32 before that), and was co-signed with City US 6 for a while. For maps of the route, see the Highways of Davenport and Bettendorf page. |
| Iowa 351 |
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Designated: February 1, 1938 Decommissioned: November 25, 1981 Original western terminus: Rembrandt; it was truncated at the east city limits on August 11, 1980. Original eastern terminus: US 71 Counties: Buena Vista Paving history: The entire road was paved at the time of designation. Replaced by: Local roads (Main Street in Rembrandt and 477th Street in Buena Vista County) Former terminus photos |
| Iowa 352 |
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Designated: February 1, 1938 Decommissioned: November 25, 1981 Original northern terminus: Truesdale; it was truncated at the south city limits on August 11, 1980. Original southern terminus: US 71 north of Storm Lake Counties: Buena Vista Paving history: The entire road was paved at the time of designation. Replaced by: Local roads (Main Street and Railroad Avenue in Truesdale and 115th Avenue in Buena Vista County, which still called it "Highway 352" in its rural street numbering system as late as 2003) Former terminus photos |
| Iowa 353 |
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Designated: March 30, 1938 Decommissioned: July 1, 1980 Original northern terminus: IA 10 (later IA 3) Original southern terminus: Rowan Counties: Wright Paving history: Unpaved at designation, it was paved in 1963. Replaced by: County Road R65 |
| Iowa 356 (I) |
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Designated: April 27, 1938 Decommissioned: April 6, 1981 Original northern terminus: IA 304 (later IA 78) Original southern terminus: Packwood Counties: Jefferson Paving history: Unpaved at designation, the post-1949 alignment was paved in 1955. Major alignment changes: On January 1, 1949, IA 356 became a 6-mile spur from IA 1 in northern Jefferson County westward into Packwood. It was truncated at the east city limits of Packwood on October 6, 1980. Replaced by: |
| Iowa 356 (II) |
| This was an unsigned designation for a segment of US 71 (as pointed out by Mike Ehret) in West Okoboji and Milford in Dickinson County, after US 71 was realigned in 2000. Although no marker appeared on the state transportation map, between 2001 and 2003 it appeared as a very small black smudge next to the red line that represents US 71. After its decommmissioning on July 1, 2003, it became Terrace Park Boulevard. |
| Iowa 357 |
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Designated: May 24, 1938 Decommissioned: 1964 Original western terminus: Blockton Original eastern terminus: IA 25 Counties: Taylor Paving history: Unpaved at designation, the road was paved in 1963. Replaced by: Division Street and North Street (now part of County Road J55) in Blockton. This was previously part of IA 25. |
| Iowa 358 |
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Designated: September 27, 1938 Decommissioned: July 1, 1980 Original northern terminus: US 18 on the Palo Alto/Kossuth county line Original southern terminus: IA 44 (I) on the Palo Alto/Kossuth County line west of Whittemore Counties: Kossuth Paving history: The entire road was paved at the time of designation. Major alignment change: In 1962, IA 358 and IA 44 switched alignments, as IA 358 took IA 44's old alignment through Whittemore. In 1964 IA 358 became a spur from the junction of US 18 and IA 44 (later IA 15) in western Kossuth County southward into Whittemore. Replaced by: |
| Iowa 359 |
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Designated: September 28, 1938 Decommissioned: July 1, 2003 Original western terminus: US 20, later unsigned IA 941, in Alden Original eastern terminus: Buckeye Counties: Hardin Paving history: Unpaved at designation, the road was paved in 1960. Replaced by: County Roads S27 (north-south segment) and D38 (southernmost mile into Buckeye) Terminus photos |