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, is a network of controlled-access highways that forms part of the National Highway System in the United States. T ...

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. Its county seat and most populous city is Pecos. The county was created in 1883 and organized the next year. It is named for Georg ...

, to Florence, South Carolina. Within the state of

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...

, the highway travels from the

Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by ...

state line west of Greenwood to the

Mississippi River The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it fl ...

, which it crosses into

Vicksburg, Mississippi Vicksburg is a historic city in Warren County, Mississippi, United States. It is the county seat, and the population at the 2010 census was 23,856. Located on a high bluff on the east bank of the Mississippi River across from Louisiana, Vi ...

. I-20 traverses the northern portion of the state, serving the metropolitan areas of Shreveport–

Bossier City Bossier City ( ) is a city in Bossier Parish in the northwestern region of the U.S. state of Louisiana in the United States. It is the second most populous city in the Shreveport–Bossier City metropolitan statistical area. In 2020, it had a ...

and Monroe, as well as the smaller cities of Minden and Ruston. It entirely parallels the older U.S. Highway 80 (US 80) corridor through Louisiana. The route is mirrored by I-10, which traverses the southern portion of the state. The two are connected by I-49, the state's major north–south Interstate Highway.

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 and a cultural and educational center of the Ark-La-Tex region. At the 2020 U.S. census, the population of Marshall was 23,392; The population of the Greater ...

, near

Waskom Waskom is a city in the U.S. state of Texas with a 2020 census-tabulated population of 1,910, down from 2,160 residents in 2010. It is located in Harrison County and lies approximately east of the county seat, Marshall, on U.S. Route 80 and ...

. 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 Shreveport about east of Greenwood. I-20 intersects

I-220 Interstate 220 (I-220) is the designation for two Interstate Highways in the United States, both related to Interstate 20: *Interstate 220 (Mississippi), a bypass of Jackson, Mississippi *Interstate 220 (Louisiana) Interstate 220 (I-220) in L ...

(the north Shreveport bypass) and

Louisiana Highway 3132 Louisiana Highway 3132 (LA 3132) is a state highway located in Shreveport, Louisiana. It runs in a general east–west direction from the junction of Interstates 20 and 220 to LA 523, serving as a southwestern bypass of the downtown ...

(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 I-49. As I-20 leaves Shreveport, it passes through

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 northwest Louisiana, United States, in Bossier Parish. It is contiguous to Bossier City, Louisiana, along the base's western and northwestern edge. Barksdale AFB ...

where it intersects

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

Arcadia Arcadia may refer to: Places Australia * Arcadia, New South Wales, a suburb of Sydney * Arcadia, Queensland * Arcadia, Victoria Greece * Arcadia (region), a region in the central Peloponnese * Arcadia (regional unit), a modern administrative un ...

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

, Ruston (where it intersects US 167), and West Monroe. I-20 passes through Monroe, 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, primarily its western or right bank, Delhi shares borders ...

, 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 Shreveport, 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

. 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 I-49, the area's main north–south route.

Interstate 420

Interstate 420 (I-420) was to be a bypass of Monroe, Louisiana. 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 Thomas Hale Boggs Sr. (February 15, 1914 – disappeared October 16, 1972; declared dead December 29, 1972) was an American Democratic politician and a member of the U.S. House of Representatives from New Orleans, Louisiana. He was the House ma ...

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 ( , ,New Orleans

' 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