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Interstate 29

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Interstate 29 marker

Interstate 29

Map
I-29 highlighted in red
Route information
Length750.58 mi[1](1,207.94 km)
NHSEntire route
Major junctions
South endI-35/I-70/US 24/US 40/US 71inKansas City, MO
Major intersections
North endUS 81/PTH 75at thePembina–Emerson Border CrossinginPembina, ND
Location
CountryUnited States
StatesMissouri,Iowa,South Dakota,North Dakota
Highway system

Interstate 29(I-29) is anInterstate Highwayin theMidwestern United States.I-29 runs fromKansas City, Missouri,at a junction withI-35andI-70,to the Canada–US border nearPembina, North Dakota,where it connects withManitoba Provincial Trunk Highway 75(PTH 75), which continues on toWinnipeg.[2]The road follows the course of three major rivers, all of which form the borders of US states. The southern portion of I-29 closely parallels theMissouri Riverfrom Kansas City northward toSioux City, Iowa,where it crosses and then parallels theBig Sioux River.For the northern third of the highway, it closely follows theRed River of the North.The major cities that I-29 connects to includes (from south to north)Council Bluffs, Iowa;Sioux City, Iowa;Sioux Falls, South Dakota;Fargo, North Dakota;andGrand Forks, North Dakota.

The I-29 "END" shield at its southern terminus in Kansas City.

Route description

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Lengths
mi km
MO 128.71 207.14
IA 151.83 244.35
SD 252.50 406.36
ND 217.54 350.10
Total 750.58 1,207.94

Missouri

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Near its southern terminus, I-29 is concurrent with I-35 andU.S. Route 71(US 71). The Interstate diverts from US 71 just north of St. Joseph and follows a sparsely populated corridor along theMissouri Riverto Council Bluffs. During the design phase there was an alternative sending the route further along US 71 through the bigger towns ofMaryville, Missouri,andClarinda, Iowa.During theGreat Flood of 1993,the Missouri River flooded this section and traffic was rerouted to US 71 through Maryville and Clarinda. I-29 was closed again for about two months during the2011 Missouri River Flood.

Almost all of I-29 in Missouri is in an area called thePlatte Purchasethat was not originally part of Missouri when it entered the Union.

Iowa

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Steep hills loom over a cornfield.
The Loess Hills flank I-29 to the east in Iowa

I-29 begins in Iowa nearHamburg.It goes northwest to an interchange withIowa Highway 2(Iowa 2), then goes north untilCouncil Bluffs.It appears to briefly runs concurrent withI-80,but I-29 actually runs outside I-80 until the two separate less than one mile (1.6 km) east ofOmaha, Nebraska,to follow the Missouri River north, winding its way along the western and northern edges of Council Bluffs. North of Council Bluffs, I-29 intersectsI-680at exit 61. At exit 71,I-880begins, while I-29 continues on a northwesterly path towardSioux City.At Sioux City,I-129spurs off of I-29 to go west towardSouth Sioux City, Nebraska.After continuing toward downtown Sioux City on a northerly route, I-29 turns west and enters South Dakota.

South Dakota

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I-29 enters South Dakota atNorth Sioux Cityby crossing over theBig Sioux River.It runs northwest until its interchange withHighway 50(SD 50) nearVermillion,where it turns north. The highway alignment is due north until just beforeSioux Falls.In the Sioux Falls area, I-29 serves the western part of Sioux Falls whileI-229spurs off and serves eastern Sioux Falls. In northwestern Sioux Falls, I-29 meetsI-90.After that, it continues north pastBrookingsand an intersection withUS 14.At the intersection withSD 28,I-29 turns northwest towardWatertown.After Watertown, the highway continues north and passes an intersection withUS 12before continuing intoNorth Dakota.

North Dakota

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I-29 enters North Dakota from the south nearHankinson.At Fargo, it meetsI-94/US 52and continues north along theRed RivertowardGrand Forks.At its northern terminus, I-29 entersCanadaand becomesPTH 75inManitoba,which leads toWinnipeg.

History

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Interstate 31 marker

Interstate 31

LocationFargo, North Dakota,toCanada–US border
Existed1957–1958

Interstate 31

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The portion fromFargo, North Dakota,to the Canada–US border was originally considered for designation asInterstate 31(I-31) in 1957 for present-day I-29.[3]No freeway was initially planned south of Fargo. However, it was subsequently decided in 1958 to connect I-29 and I-31 between Sioux Falls and Fargo. The entire freeway was then built and numbered as I-29.[4]

Interstate 49

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Residents of Missouri, Arkansas, and Louisiana began campaigning in the 1960s to extend I-29 via the US 71 corridor from Kansas City, Missouri, toNew Orleans, Louisiana.[5]The campaign would create a limited access highway from New Orleans to Canada and on toWinnipeg.[citation needed]That extension came to be calledI-49,which was not part of the 1957 master plan.[citation needed]It was assigned a separate number instead of I-29 to conform with the numbering rules for Interstate Highways (increasing from west to east for north–south routes), as it would lie east ofI-35and west ofI-55.[6]When I-49 is complete, the goal of the association will have been accomplished, with only a brief gap (served byother Interstatesor US 71).

2019 closures

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In March and April 2019, as a result of the2019 Midwestern US floods,I-29 was closed in both directions for approximately 187 miles (301 km) betweenSt. JosephandCouncil Bluffs.Much of this section of I-29, including at the Missouri–Iowa border, runs over or through a large floodplain for theMissouriandPlatterivers. As such, multiple elevated sections of the highway collapsed and other sections were submerged or washed out by floodwaters. This was the largest closure of an Interstate Highway in terms of distance in the history of the Interstate Highway System. A signed detour was not officially designated in most areas, as the roads that would be used as detours are mostly rural farm roads that were also submerged by flooding. However, along I-80 in Iowa, traffic from I-80 in Iowa was officially detoured via I-35 from Des Moines, Iowa, to Kansas City, Missouri.US 75,paralleling I-29 on the other side of the Missouri River, was also closed in large sections due to flooding.

By May 2019, the vast majority of I-29 had been repaired and reopened, with the exception of 10 miles (16 km) around Council Bluffs where the highway ran concurrent withI-680(now the portion of I-29 between I-680 and I-880). However, throughout the remainder of the spring and summer, and even early fall, more rainfall and flooding resulted in sections of I-29 being closed again, including on the recently repaired sections. At a few times, the entire 187-mile (301 km) section between St. Joseph and Council Bluffs was completely shut down, although this was rare after May 2019.[7][8][9]

As of October 2019, all of I-29 is open to traffic in both directions, although some Missouri River bridges and local farm roads remain closed due to flooding.

Junction list

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Missouri
I-35/I-70/US 24/US 40/US 71at theDowntown LoopinKansas City.I-29 / I-35 travel concurrently through Kansas City. I-29 / US 71 travel concurrently to east ofAmazonia.
US 69on theGladstone–Kansas City city line
US 169on the Gladstone–Kansas City city line
I-635in Kansas City
I-435in Kansas City. The highways travel concurrently toPlatte City.
I-229south-southeast ofSt. Joseph
US 169in St. Joseph
US 36in St. Joseph
US 169in St. Joseph
US 59north-northeast of St. Joseph. The highways travel concurrently to east ofAmazonia.
I-229/US 59/US 71north of St. Joseph
US 59northwest of Amazonia. The highways travel concurrently for approximately 1.8 miles (2.9 km).
US 59north ofOregon
US 159south-southeast ofMound City
US 59east ofCraig
US 136inRock Port
Iowa
US 34/US 275west ofGlenwood.I-29 / US 275 travel concurrently toCouncil Bluffs.
I-80/US 6in Council Bluffs. I-29 / US 6 travel concurrently through Council Bluffs.
I-480in Council Bluffs.
I-680west-southwest ofCrescent
I-880west-southwest ofLoveland
US 30inMissouri Valley
I-129/US 20/US 75inSioux City
US 77in Sioux City
South Dakota
US 18south-southwest ofWorthing.The highways travel concurrently for approximately 3.02 miles (4.86 km).
I-229inSioux Falls
I-90in Sioux Falls
US 14inBrookings
US 212inWatertown
US 81northeast of Watertown. The highways travel concurrently to east ofManvel, North Dakota.
US 12northwest ofSummit
North Dakota
I-94/US 52inFargo
US 10in Fargo
US 2inGrand Forks
US 81south-southwest ofJoliette.The highways travel concurrently to theCanada–United States bordernorth ofPembina.
PTH 75at the Canada–United States border north of Pembina

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Auxiliary routes

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See also

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References

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  1. ^Starks, Edward (January 27, 2022)."Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways".FHWA Route Log and Finder List.Federal Highway Administration.RetrievedMarch 10,2023.
  2. ^"Overview Map of I-29".Google Maps.Archivedfrom the original on 2023-06-03.Retrieved2008-02-15.
  3. ^Official Route Numbering for the National System of Interstate and Defense Highways,August 14, 1957
  4. ^Official Route Numbering for the National System of Interstate and Defense Highways,June 27, 1958
  5. ^"Rival Highway Groups Study Compromise".The Northwest Arkansas Times.Associated Press.September 1, 1965. p. 20A.Archivedfrom the original on December 4, 2021.RetrievedDecember 4,2021– viaNewspapers.com.
  6. ^"Interstate 49: Origin, Planning, Construction"(PDF).Missouri Department of Transportation. 2012.Archived(PDF)from the original on 2022-10-09.RetrievedDecember 4,2021.
  7. ^"Stretch of I-29 closes again".KMTV.October 6, 2019.Archivedfrom the original on October 8, 2019.RetrievedOctober 8,2019.
  8. ^writer, Jessica Wade World-Herald staff (21 September 2019)."Flooding closes parts of I-680, I-29 near Council Bluffs, Missouri Valley".Omaha.com.Archivedfrom the original on 8 October 2019.Retrieved8 October2019.
  9. ^Hartnett, Mary (7 October 2019)."Flooding Again Closes Section of I-29, Grassley Grandson to Lead Iowa House".www.kwit.org.Archivedfrom the original on 8 October 2019.Retrieved8 October2019.
  10. ^Rand McNally (2014).The Road Atlas(Walmart ed.). Chicago: Rand McNally. pp. 38, 58, 77, 93.ISBN978-0-528-00771-2.
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