Interstate 20 in Louisiana

Route description

I-20 enters Louisiana about 20 mi east of Marshall, Texas, 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 Shreveport about 5 mi 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 I-49.

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 where it intersects I-220 with no access to the northern terminus of LA 1267 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, Grambling, 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, and Tallulah. About 15 mi east of Tallulah, I-20 crosses over the Mississippi River into Vicksburg, Mississippi.

Exit list

(westbound only)

Auxiliary routes

Interstate 220

Main article: Interstate 220 (Louisiana)

Interstate 220 (I-220) in Louisiana is an east–west bypass route around Shreveport, in the northwestern corner of the state. It runs 17.62 mi from I-20 and Louisiana Highway 3132 (LA 3132) in Shreveport to a second interchange with I-20 in Bossier City. The highway serves 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 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' Vieux Carré Riverfront Expressway.

Notes

References

References

1. [[Louisiana Department of Transportation and Development]], Highway Inventory Unit. (2016). "LRS Conversion Tool". Louisiana Department of Transportation and Development.
2. (February 22, 2017). "FHWA Route Log and Finder List / Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2016".
3. [[Louisiana Department of Transportation and Development]]. "I-69 SIU 15 Record of Decision".
4. "Overview Map of I-220".
5. Weingroff, Richard. (April 7, 2011). "The Second Battle of New Orleans: Vieux Carré Riverfront Expressway (I-310)". [[Federal Highway Administration]].