Interstate 155 (Missouri–Tennessee)

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Interstate 155

I-155 highlighted in red
Route information
Auxiliary route of I-55
Length26.7 mi[1] (43.0 km)
NHSEntire route
Major junctions
West end I-55 / US 61 / US 412 near Hayti, MO
East end US 51 / US 412 at Dyersburg, TN
CountryUnited States
StatesMissouri, Tennessee
CountiesMO: Pemiscot
TN: Dyer
Highway system
Route 154MO Route 156
SR 154TN SR 155

Interstate 155 (I-155) is an east–west auxiliary route of Interstate 55 (I-55) that runs through the Bootheel of Missouri and the northwestern corner of Tennessee. It begins south of Hayti, Missouri at I-55, passes eastward through Caruthersville, and crosses the Mississippi River on the Caruthersville Bridge into Tennessee. The route then proceeds to Dyersburg, Tennessee, where it terminates at U.S. Route 51 (US 51). I-155 is the only road that directly connects Missouri and Tennessee, and is concurrent with US 412 for its entire length.

Route description

I-155 westbound near its western terminus

Interstate 155 begins at a near-full cloverleaf interchange with I-55 in Pemiscot County, Missouri, on the edge of Hayti, where US 412 continues as a four-lane divided highway to the northwest. Initially traveling in a southeastward direction, the interstate passes through farmland in a sparsely populated rural area. A few miles later, the highway passes south of Caruthersville where it has an interchange first with a local road, and then with the southern terminus of Route 84 near the Caruthersville Memorial Airport. A few miles later, the highway shifts south-southeast before crossing the Mississippi River on the 1.35-mile (2.17 km) Caruthersville Bridge into Dyer County, Tennessee.

I-155 westbound at the Great River Road exit

Upon crossing the river, I-155 veers east-southeast and reaches an interchange with State Route 181 (SR 181), which is part of the Great River Road. Passing through additional farmland, the interstate crosses the Obion River a few miles later and has an interchange with SR 182 a short distance beyond south of the Lenox community. The highway then ascends out of the Mississippi Alluvial Plain on to the Gulf Coastal Plain and enters a wooded area, where the Tennessee Welcome Center is located, before reaching Dyersburg a few miles later. Traveling along the northern fringes of the city in an eastward direction, the interstate has an interchange first with SR 78, which also provides access to Tiptonville. A few miles later, the interstate turns northeast, before reaching a trumpet interchange with US 51, where the I-155 designation ends, and US 412 splits off to the south towards Jackson. The route continues to the northeast as a controlled-access segment of US 51.


The Caruthersville Bridge from the Tennessee side of the Mississippi River

Interstate 155 has its origins in the early 1940s, when a bridge linking Missouri and Tennessee was proposed. At the time, the two states were two of the few remaining bordering states in the country which were not directly connected by road or rail.[3] A committee was created by both state legislatures to study the possibility of constructing the bridge in 1949.[4] The site was chosen by the commission on November 18, 1952,[5] which was subsequently approved by the Army Corps of Engineers on August 20, 1953.[6]

After the passage of the Federal Aid Highway Act of 1956, which authorized the Interstate Highway System, officials in Missouri, Tennessee, Kentucky, and Illinois began an effort to improve connectivity between the four states, which included a westward extension of I-24 from its allocated terminus in Nashville to southern Illinois. Governors John M. Dalton of Missouri and Buford Ellington of Tennessee announced on January 30, 1962, a proposal for a new interstate highway between I-55 in Hayti and I-40 in Jackson, Tennessee, incorporating the bridge.[7] On September 17, 1963, the governors of the four states met with President John F. Kennedy where they reached an agreement on the alignment for the I-24 extension and endorsed the routing for the Hayti-to-Jackson interstate highway.[8] On August 18, 1964, the Bureau of Public Roads, the predecessor agency to the Federal Highway Administration, authorized an interstate highway between Hayti and Dyersburg, which was named I-155, as well as the I-24 extension. However, they did not give approval to the entire proposed route.[9][10]

Work on the Caruthersville Bridge began in March 1969 and was opened to traffic on December 1, 1976, in a ceremony by Missouri Governor Kit Bond and Tennessee Governor Ray Blanton.[11][12] The last section of I-155, located between SR 182 and the eastern terminus with US 51/412, was completed in November 1979.[13] US 412 was added to the route in 1982. In the 1990s, an extension of I-69 was proposed to intersect the interstate northwest of Dyersburg and replace the remainder east of that point, reducing its length by approximately eight miles (13 km).[14]

Exit list

US 412 west
Westbound exit and eastbound entrance; western terminus; I-55 exit 17B; cloverleaf interchange.
1 I-55 / US 61 – Memphis, St. LouisSigned as exits 1A (south) and 1B (north); I-55 exit 17A; cloverleaf interchange.
4.3466.9944 Route D / Route U – Caruthersville
Caruthersville6.76910.8946 Route 84 / Route Y – Caruthersville
Mississippi River10.723
Caruthersville Bridge
TennesseeDyer2.33.72 SR 181 (Great River Road)
7.411.97 SR 182 (Lenox Road)
I-69 south – Memphis
Proposed I-69 south; future eastern terminus of I-155
13.020.913 SR 78 – Dyersburg, Tiptonville

US 51 south / US 412 east – Dyersburg, Jackson
Western end of US 412 concurrency

US 51 north – Union City
Continuation past interchange; eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2021". Route Log and Finder List. Federal Highway Administration. Retrieved March 12, 2022.
  2. ^ "It's Interstate 155". The Democrat-Argus. Caruthersville, Missouri. September 25, 1964. p. 11. Retrieved March 27, 2022 – via
  3. ^ Malone, Johnny (November 9, 1967). "1968 Start Seen For Mississippi Span". The Jackson Sun. p. 1, 20. Retrieved May 22, 2021 – via
  4. ^ "Browning Appoints Bridge Commission". The Nashville Tennessean. September 10, 1949. p. 5. Retrieved May 22, 2021 – via
  5. ^ "Bridge Commission Approves Site". The Jackson Sun. November 18, 1952. p. 8. Retrieved May 21, 2021 – via
  6. ^ "Engineers Approve Site Of Mississippi Bridge". The Nashville Tennessean. Associated Press. August 21, 1953. p. 46. Retrieved May 22, 2021 – via
  7. ^ "2 Governors Agree On Highway, Bridge". The Nashville Tennessean. January 31, 1962. p. 4. Retrieved May 22, 2021 – via
  8. ^ Laycook, Lois (September 18, 1963). "4 Governors Agree On I-24; Campbell, Paducah On Route". The Nashville Tennessean. pp. 1, 4. Retrieved March 10, 2022 – via
  9. ^ Laycook, Lois (August 19, 1964). "U.S. Approves I-24 to Illinois, Bridge in Dyer". The Nashville Tennessean. pp. 1, 2. Retrieved March 10, 2022 – via
  10. ^ "Eisenhower Interstate Highway System, Previous Facts of the Day". Federal Highway Administration. 2010. Archived from the original on December 11, 2020. Retrieved July 5, 2020.
  11. ^ Williams, Chambers (November 30, 1976). "New Bridge Opens Wednesday". The Jackson Sun. p. 1, 5. Retrieved May 22, 2021 – via
  12. ^ Williams, Chambers (December 1, 1976). "Two States Joined As Bridge Opens". The Jackson Sun. p. 1. Retrieved May 22, 2021 – via
  13. ^ Community Relations Division (2006). Map of West Tennessee Interstate Development (Map). Scale not given. Tennessee Department of Transportation. Archived from the original on July 21, 2006. Retrieved April 27, 2020.
  14. ^ "I-69 Decision Made for Northern and Southern Portions of Millington to Dyersburg Section" (Press release). Tennessee Department of Transportation. May 19, 2006. Archived from the original on June 29, 2006. Retrieved March 12, 2022.
  15. ^ Missouri Department of Transportation (November 13, 2012). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved November 13, 2012.
  16. ^ Long Range Planning Division (2005). Dyer County, Tennessee (PDF) (Map). General Highway Map. Tennessee Department of Transportation. Archived from the original (PDF) on November 12, 2011. Retrieved November 23, 2011.

External links