Interstate 55 in Missouri

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Interstate 55 marker

Interstate 55
Route information
Maintained by Missouri DOT
Length: 210.45 mi[1] (338.69 km)
Existed: 1956 – present
Major junctions
South end: I-55 at Arkansas state line
  I-155 / US 412 near Hayti
I-57 / US 60 in Miner
US 62 in Sikeston
I-255 / I-270 in Mehlville
US 50 / US 61 / US 67 in Mehlville
I-44 in St. Louis
I-64 / US 40 in St. Louis
North end: I-55 / I-64 / US 40 / I-44 in St. Louis
Highway system
US 54 US 56

In the U.S. state of Missouri, Interstate 55 runs from the Arkansas state line to the Poplar Street Bridge over the Mississippi River in St. Louis.

Route description[edit]

Interstate 55 enters Missouri at the Arkansas border near Cooter. It runs northward through mostly flat land in the Bootheel, where it has an interchange with U.S. Route 412 and Interstate 155. The highway continues over bumpy land through or near the towns of Hayti, Portageville, and New Madrid before reaching an interchange with U.S. Route 60 and Interstate 57 just south of Sikeston. The next interchange, U.S. Route 62, provides access into the city of Sikeston and one of its most popular attractions, Lambert's Cafe, the "Home of the Throwed Rolls".

North of Sikeston, I-55 begins to traverse rolling terrain on its way to Cape Girardeau. Exit 95, Route 74 east, provides direct access to the Bill Emerson Memorial Bridge into southern Illinois. The heart of the city of Cape Girardeau as well as Southeast Missouri State University can be reached by taking either Exit 96 or Exit 99.

I-55 then goes through rural areas again as it makes a north-northwesterly run through the towns of Perryville and Ste. Genevieve before entering the southern reaches of the St. Louis metro area at the interchange with U.S. Route 67 and the Twin Cities of Festus and Crystal City. U.S. Route 61 and 67 run concurrently immediately east of I-55 nearly due north through the Jefferson County towns of Herculaneum, Pevely (where the interstate expands from 4 lanes to 6), Barnhart (and then to 8), Imperial, and finally Arnold before crossing the Meramec River into St. Louis County.

From Richardson Road in Arnold to I-270, I-55 is 10 lanes wide. The interstate narrows back down to 8 lanes past I-270, through southern St. Louis County, and into the city of St. Louis. In the last few miles of I-55 in the state of Missouri, there is an interchange/brief overlap with Interstate 44 before reaching the Poplar Street Bridge crossing into Illinois.


Sponsorship controversy[edit]

The white supremacy group Ku Klux Klan began fighting several court battles with the state of Missouri after the state disputed its right to sponsor a stretch of freeway in Saint Louis County and Jefferson County, near St. Louis. In March 2001, after a U.S. District Court judge found that blocking the Klan's sponsorship was unconstitutional, the Court of Appeals ruled that the state must erect signs announcing the group's sponsorship. However, the Missouri Legislature later voted to rename the stretch of I-55 the "Rosa Parks Freeway" in honor of the Montgomery civil rights hero who began the Montgomery bus boycott. When asked how she felt about this honor, she is reported to have commented, "It is always nice to be thought of."[2] The Klan were eventually dropped from the scheme on April 4, 2001, on the grounds that for the duration of their sponsorship, they had not once cleaned the freeway.

Exit list[edit]

County Location mi km Exit Destinations Notes
Arkansas state line I-55 south – Memphis Continuation into Arkansas
Pemiscot 0.00 0.00 1 Route O to US 61 – Holland
4 Route E – Cooter, Holland
8 US 61 south / Route 164 – Steele South end of US 61 overlap
14 Route U / Route H / Route J – Caruthersville, Braggadocio
17 I-155 east / US 412 – Caruthersville, Dyersburg, Hayti, Kennett Signed as exits 17A (east) and 17B (west); I-155/US 412 exits 1A-B
Hayti 19 Route 84 – Hayti, Caruthersville
27 Route K / Route A / Route BB – Wardell
New Madrid Portageville 32 US 61 north / Route 162 – Portageville North end of US 61 overlap
Marston 40 Route EE (St. Jude Road) – Marston
New Madrid 44 Business Loop I-55 north / US 61 / US 62 – New Madrid, Howardville
49 Business Loop I-55 south / US 61 / US 62 – New Madrid, Kewanee
52 Route P – Kewanee
58 Route 80 – Matthews, East Prairie
Scott Sikeston 66 I-57 north / US 60 – Dexter, Poplar Bluff, Chicago Signed as exits 66A (north/east) and 66B (west); I-57/US 60 exits 1A-B
67 US 62 – Sikeston, Bertrand
69 Route HH – Miner, Sikeston
80 Route 77 – Benton, Diehlstadt
Scott City 89 US 61 south / Route M / Route K – Scott City, Chaffee South end of US 61 overlap
91 Route AB – Cape Girardeau Regional Airport
Cape Girardeau Cape Girardeau 93 Business Loop I-55 north / US 61 north / Route 74 west – Dutchtown, Cape Girardeau North end of US 61 overlap; south end of Route 74 overlap; signed as exits 93A (west) and 93B (north) northbound
95 Route 74 east to IL 146 – Cape Girardeau North end of Route 74 overlap
96 Route K – Cape Girardeau, Gordonville
99 Business Loop I-55 / US 61 / Route 34 – Cape Girardeau, Jackson
102 East Main Street, LaSalle Avenue
105 Business Loop I-55 south / US 61 – Fruitland, Jackson
111 Route E – Oak Ridge
117 Route KK – Old Appleton
Perry 123 Route B – Biehle
Perryville 129 Route 51 – Perryville
135 Route M – Brewer
Ste. Genevieve 141 Route Z – St. Mary
143 Route N / Route J / Route M – Ozora
150 Route 32 / Route B / Route A – Ste. Genevieve, Farmington
154 Route O – Ste. Genevieve, Rocky Ridge
157 Route Y – Bloomsdale
162 Route DD / Route OO
Jefferson 165 Route TT
170 US 61
Crystal City 174 Business Loop I-55 north / US 67 to US 61 – Crystal City, Farmington, Bonne Terre Signed as exits 174A (north) and 174B (south)
Festus 175 Route A – Hillsboro, Festus
Herculaneum 178 Business Loop I-55 south (McNutt Street) – Herculaneum
Pevely 180 Route Z – Pevely
Barnhart 185 Route M – Barnhart, Antonia
Imperial 186 Imperial Main Street
Arnold 190 Richardson Road Signed as Richardson Road/Vogel Road southbound
191 Route 141 – Arnold, Fenton
St. Louis 193 Meramec Bottom Road
195 Butler Hill Road
196 I-255 east / I-270 west – Chicago, Kansas City I-255/270 exits 1A-B.
197 US 61 / US 67 / US 50 (Lindbergh Boulevard) Southbound exit via exit 196
199 Reavis Barracks Road
200 Union Road Southbound exit and northbound entrance
201A Bayless Avenue
201B Weber Road Southbound exit and northbound entrance
City of St. Louis 202A Carondelet Boulevard, River City Boulevard Northbound exit and southbound entrance
202B Germania Avenue Southbound exit and northbound entrance
202C Loughborough Avenue
203 Virginia Avenue, Bates Street
204 4500 South Broadway
205 Gasconade Street Southbound exit and northbound entrance
206A Potomac Street Northbound exit and southbound entrance
206B 3200 South Broadway Northbound exit and southbound entrance
206C Arsenal Street
207A Historic US 66 (Gravois Avenue) / Route 30 Northbound exit and southbound entrance; MO 30 unsigned
207B I-44 west – Tulsa Signed as exit 207 southbound; south end of I-44 overlap
207 Truman Parkway Northbound exit and southbound entrance
290 Historic US 66 (Gravois Avenue) / Route 30, 12th Street Southbound exit and northbound entrance; MO 30 unsigned
208 Park Avenue, 7th Street
40C I-64 west / US 40 west – St. Louis South end of I-64 / US 40 overlaps; southbound exit and northbound entrance
291A I-44 west to I-70 west – Kansas City Southbound signed as exit 40B
291A Walnut Street - Downtown St. Louis, Gateway Arch, Busch Stadium Southbound signed as exit 40B
Mississippi River Poplar Street Bridge
St. Clair East St. Louis 210.45 338.69 I-55 north / I-64 east / US 40 east to I-70 east – Illinois Continuation into Illinois
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Auxiliary routes[edit]

  • I-155: A spur running from I-55 in Hayti, MO to US-51 in Dyersburg, TN; overlaps with U.S. Route 412 for its entire length. Eight miles of this highway will be absorbed into the newly extended Interstate 69 in the future.
  • I-255: The eastern third of the beltway around the St. Louis Metro Area (with I-270 forming the remaining two-thirds)


  1. ^ "Route Log and Finder List - Interstate System - table 1". Federal Highway Administration. 2002-10-31. Retrieved 2007-07-08. 
  2. ^ Scruggs, Yvonne (2003-02-04). "Happy Birthday, Rosa Parks!". Women's eNews. Retrieved 2011-09-19. 

External links[edit]

Route map: Bing / Google

Interstate 55
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