Interstate 20 (I-20) is a part of the

Interstate Highway System The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Hi ...

that spans from

Reeves County, Texas Reeves County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 14,748, and was estimated to be 11,956 in 2024. Its county seat and most populous city is Pecos. The county was created on April 14, 1883 ...

, to

Florence, South Carolina Florence is a city in and the county seat of Florence County, South Carolina, United States. It lies at the intersection of Interstates 20 and 95 and is the eastern terminus of the former. It is the primary city within the Florence metropol ...

. Within the state of

Louisiana Louisiana ( ; ; ) is a state in the Deep South and South Central regions of the United States. It borders Texas to the west, Arkansas to the north, and Mississippi to the east. Of the 50 U.S. states, it ranks 31st in area and 25 ...

, the highway travels from the

Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...

state line west of Greenwood to the

Mississippi River The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...

, which it crosses into

Vicksburg, Mississippi Vicksburg is a historic city in Warren County, Mississippi, United States. It is the county seat. The population was 21,573 at the 2020 census. Located on a high bluff on the east bank of the Mississippi River across from Louisiana, Vicksburg ...

. I-20 traverses the northern portion of the state, serving the

metropolitan area A metropolitan area or metro is a region consisting of a densely populated urban area, urban agglomeration and its surrounding territories which share Industry (economics), industries, commercial areas, Transport infrastructure, transport network ...

s of

Shreveport Shreveport ( ) is a city in the U.S. state of Louisiana. It is the List of municipalities in Louisiana, third-most populous city in Louisiana after New Orleans and Baton Rouge, Louisiana, Baton Rouge. The bulk of Shreveport is in Caddo Parish, Lo ...

– Bossier City and

Monroe Monroe or Monroes may refer to: People and fictional characters * Monroe (surname) * Monroe (given name) * James Monroe, 5th President of the United States * Marilyn Monroe, actress and model Places United States * Monroe, Arkansas, an unincorp ...

, as well as the smaller cities of

Minden Minden () is a middle-sized town in the very north-east of North Rhine-Westphalia, Germany, the largest town in population between Bielefeld and Hanover. It is the capital of the district () of Minden-Lübbecke, situated in the cultural region ...

and Ruston. It entirely parallels the older U.S. Highway 80 (US 80) corridor through Louisiana. The route is mirrored by

I-10 Interstate 10 (I-10) is the southernmost transcontinental highway in the Interstate Highway System of the United States. It is the fourth-longest Interstate in the country at , following I-90, I-80, and I-40. It was part of the originall ...

, which traverses the southern portion of the state. The two are connected by

I-49 Interstate 49 (I-49) is a north–south Interstate Highway with multiple segments. The original portion is entirely within Louisiana with an additional signed portion extending from I-220 in Shreveport to the Arkansas state line, three ne ...

, the state's major north–south

Interstate Highway The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Hi ...

Route description

I-20 enters Louisiana about east of

Marshall, Texas Marshall is a city in the U.S. state of Texas. It is the county seat of Harrison County, Texas, Harrison County and a cultural and educational center of the Ark-La-Tex region. At the 2020 United States census, 2020 U.S. census, the population of ...

, near Waskom. I-20 passes through Greenwood to the north of town, where US 80/ US 79 serve as the main east–west highway. I-20 enters

about east of Greenwood. I-20 intersects I-220 (the north Shreveport bypass) and Louisiana Highway 3132 (LA 3132, the south Shreveport bypass) on the westside of the city. On the way to Downtown Shreveport, I-20 intersects US 171 and serves as the current northern terminus of

. As I-20 leaves Shreveport, it passes through Bossier City where it shares an overlap with US 71. I-20 passes north of

Barksdale AFB Barksdale Air Force Base (Barksdale AFB) is a United States Air Force (USAF) base in Bossier Parish, Louisiana, in northwest Louisiana. Much of the base is within the city limits of Bossier City, Louisiana, along the base's western and northwest ...

where it intersects I-220 with no access to the northern terminus of LA 1267 and heads east toward

. On its way to Monroe, I-20 traverses mainly rural, hilly terrain as it passes through the towns of;

, Arcadia,

Grambling Grambling State University (GSU, Grambling, or Grambling State) is a public historically black university in Grambling, Louisiana, United States. Grambling State is home of the Eddie G. Robinson Museum and is listed on the Louisiana African A ...

, Ruston (where it intersects US 167), and West Monroe. I-20 passes through

, where it intersects US 165. East of Monroe, I-20 enters flatter terrain as it passes through Rayville,

Delhi Delhi, officially the National Capital Territory (NCT) of Delhi, is a city and a union territory of India containing New Delhi, the capital of India. Straddling the Yamuna river, but spread chiefly to the west, or beyond its Bank (geography ...

, and Tallulah. About east of Tallulah, I-20 crosses over the

into

Exit list

Auxiliary routes

Interstate 220

Interstate 220 (I-220) in

is an east–west bypass route around

, in the northwestern corner of the state. It runs from I-20 and Louisiana Highway 3132 (LA 3132) in Shreveport to a second interchange with I-20 in Bossier City. The highway serve as a northern bypass of the downtown area for through traffic traveling on I-20, and, with LA 3132, the highway helps to carry through traffic between the two currently disconnected portions of

, the area's main north–south route.

Interstate 420

Interstate 420 (I-420) was to be a bypass of

Monroe, Louisiana Monroe is the ninth-largest city in the U.S. state of Louisiana, and is the parish seat and largest city of Ouachita Parish. With a 2020 census-tabulated population of 47,702, it is the principal city of the Monroe metropolitan statistical ...

. Initially proposed in the late 1950s, this route was to have been only two lanes wide at a cost $29 million with a projected 2,500 to 3,000 ADT in 1964. The project was effectively canceled on October 12, 1964, when then Louisiana Representative Hale Boggs agreed to no longer seek funding for the route. This was done in favor of focusing all efforts at funding and getting built

New Orleans New Orleans (commonly known as NOLA or The Big Easy among other nicknames) is a Consolidated city-county, consolidated city-parish located along the Mississippi River in the U.S. state of Louisiana. With a population of 383,997 at the 2020 ...

' Vieux Carré Riverfront Expressway.

Notes

References

External links

Maps / GIS Data Homepage
Louisiana Department of Transportation and Development {{DEFAULTSORT:I020 Louisiana 20 Transportation in Bienville Parish, Louisiana Transportation in Bossier Parish, Louisiana Transportation in Caddo Parish, Louisiana Transportation in Lincoln Parish, Louisiana Transportation in Madison Parish, Louisiana Transportation in Ouachita Parish, Louisiana Transportation in Richland Parish, Louisiana Transportation in Webster Parish, Louisiana