Interstate Highway 20 in Mississippi

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National Western Terminus:

At I-10 east of Kent, TX

National Eastern Terminus:

At I-95 near Florence, SC

National Distance:

1,509 miles

States Served:

Texas, Louisiana, Mississippi, Alabama, Georgia, South Carolina

Mississippi Western Terminus:

LA/MS State Line at the Mississippi River in Vicksburg, Warren County

Mississippi Eastern Terminus:

MS/AL State Line near Kewanee, Lauderdale County

Mississippi Distance:

154.7 miles

Counties Served:

Warren, Hinds, Rankin, Scott, Newton, Lauderdale

Cities/Towns Over 5,000 Population:

Vicksburg, Clinton, Jackson, Pearl, Brandon, Forest, Meridian

Highway Duplexes:

US 80 (twice), US 61, US 49, I-55, I-59, US 11, MS 19

Junctions With:

US 80 (multiple times), US 61, MS 822, MS 27, MS 22, MS 467, MS 855, Natchez Trace Pkwy, MS 18, I-220, US 49, I-55, US 51, Unmarked Highway (at US 49 South), MS 468, MS 475, MS 43, MS 13, MS 481, MS 35, MS 15, MS 503, MS 889, I-59, US 11, MS 19, MS 145, MS 39, US 45

Legislative Names:

National Blue Star Memorial Highway (LA/MS line to MS/AL line)
31st Infantry Division Memorial Highway (LA/MS line to MS/AL line)
Travelers Highway (along US 80 duplexes)

6+ lane segments:

From I-220 to I-55 South
Along I-55 duplex
From I-55 North to MS 468

MDOT's Vision 21 System:

High Priority from Mississippi River to US 61 North/MS 27
Medium Priority from US 61 North/MS 27 to Bovina
Low Priority from Bovina to US 80 East at Clinton
High Priority from US 80 East at Clinton to MS 18
Medium Priority from MS 18 to I-55 South
High Priority from I-55 South to US 49 South
Medium Priority from US 49 South to MS 468
High Priority from MS 468 to US 80 at West Brandon
Low Priority from US 80 at West Brandon to MS 43
Low Priority from Chunky to I-59 South
High Priority from I-59 South to MS 19 South/MS 39
Low Priority from MS 19 South/MS 39 to Toomsuba

Average Annual Daily Traffic Volumes (2004)

Warren County:

23,000 (At Mississippi River)
29,000 (W of US 61 South)
40,000 (E of US 61 South)
41,000 (E of Halls Ferry Rd/Exit 1C)
44,000 (E of Indiana Ave/Exit 3)
44,000 (E of Clay St/Old US 80)
36,000 (E of US 61 North/MS 27)
33,000 (E of Bovina)
30,000 (E of Flowers)

Hinds County:

30,000 (W of MS 22/Edwards)
31,000 (E of MS 22/Edwards)
33,000 (E of Bolton)
35,000 (E of Natchez Trace Pkwy)
41,000 (E of Old Raymond Rd/Exit 35)
54,000 (E of Spring Ridge Rd/Exit 36)
71,000 (E of I-220/US 49 North)
85,000 (E of Ellis Ave)
107,000 (W of Gallatin St)
114,000 (E of State St)

Rankin County:

114,000 (W of I-55 North)
104,000 (E of I-55 North)
85,000 (E of US 49 South)
64,000 (E of MS 468)
54,000 (E of MS 475)
36,000 (E of Crossgates Blvd/Exit 54)
27,000 (E of US 80/West Brandon)
22,000 (E of MS 43)

Scott County:

22,000 (E of MS 13)
22,000 (E of MS 481)
17,000 (E of MS 35)
17,000 (E of Lake/Exit 96)

Newton County:

18,000 (E of US 80/Exit 100)
18,000 (E of MS 15)
20,000 (E of MS 503)

Lauderdale County:

20,000 (W of US 80 West/Lost Gap)
22,000 (W of I-59 South)
35,000 (E of I-59 South)
50,000 (E of US 11 South/MS 19 North)
41,000 (E of 49th Ave)
58,000 (E of 29th Ave)
42,000 (E of MS 145/22nd Ave)
30,000 (E of MS 19 South/MS 39)
24,000 (E of Russell/Exit 160)
21,000 (E of US 11/US 80/Kewanee)

Current/Upcoming Projects Listed in the STIP


Location: Type of Work: Funding:


At Flowers ROW for Interchange reconstruction $1 million


Mississippi River to Bovina Overlay $8 million


Clinton-Raymond Rd to MS 18 PE for 6-lane widening $700,000


Through Vicksburg ROW for Reconstruction $5 million


At Flowers Interchange reconstruction $5 million


At Clinton-Raymond Rd Interchange reconstruction $9 million


MS 468 to US 80/Brandon 8-lane widening $10.5 million

Froggie's Notes:

- I-20 is a major east-west Interstate across Mississippi, serving as a direct route between Dallas and Atlanta.
- Sections of I-20 were under construction by 1960.  The first section to open was in 1964 from MS 27 in Vicksburg east to Bovina.  By 1971, most of I-20 was complete across Mississippi, the only sticking point being through Meridian.  The section through Meridian was eventually upgraded to minimal Interstate standards through the 70s.
- The pavement on I-20 between Brandon and Newton is often known for having a roller-coaster effect.  Despite several pavement reconstructions and replacements, the problem has persisted.  The underlying reason lies in the ground itself, and the extensive amount of red clay in the region.
- Of note is that the Legislature placed the entire segment from the Mississippi River to Brandon on the Vision 21 program.
- A currently underway project, Phase 3 of "The Stack", involves adding a collector-distributor (C/D) road to the westbound side of I-20 between US 49 South and I-55 North at "The Stack" interchange just southeast of downtown Jackson.  The project also includes a flyover ramp from northbound US 49 to westbound I-20.

Froggie Suggests:

- Provide at least 6 lanes between US 61 South in Natchez and US 80 at West Brandon.
- Widen to 8 lanes between I-220 and I-55 South.
- Widen the I-20/55 duplex to 10 lanes.
- Widen to 8 lanes from US 49 South to MS 475.
- Provide a full freeway-to-freeway style interchange at MS 475.
- In Lauderdale County, widen to 6 through lanes plus auxiliary lanes from I-59 South to US 45.
- As an alternative to widening through Meridian, an Interstate-grade southern bypass of Meridian could be built instead, from near Lost Gap east to the existing US 45 South bypass.  I have dubbed such a bypass as I-259.
- Interchange improvements and ramp additions as needed.


2004 Aerial Photos

All aerial photos are pulled from aerial imagery provided by the National Agriculture Imagery Program, via the Mississippi Automated Resource Information System.

I-20 crossing the Mississippi River between Louisiana and Mississippi.  The bridge immediately north is an old combination road/rail bridge that used to carry US 80 across the river.  Some ground photos of these two bridges can be viewed on this page.

I-20 interchange with US 61 South in Vicksburg, just east of the Mississippi River.

Two interesting interchange designs here along I-20.  The east-west road is Clay St, and is the old alignment of US 80 through and east of Vicksburg.  It now carrying the MS 822 designation, though it's unknown if it's signed in the field.  MS 27 runs south from the interchange on the right, while US 61 continues north from the same interchange after a duplex with I-20.

I-20 interchange at MS 22/MS 467 near Edwards.

I-20 interchange at the hidden MS 855 near Bolton.  MS 855 serves as a state-maintained connector from I-20 into Bolton.

I-20/I-220 interchange in west Jackson.  US 49 also passes through this interchange, from north to east and vice versa.

This tangle of ramps shows most of the I-20/I-55 duplex, with I-55 coming from the south in the bottom left, I-20 from the northwest, plus the older US 51 freeway stub partially between the two.

Just to the east of the above aerial is the interchange locally called "The Stack", the interchange between I-20, I-55 North, and US 49 South.  A project is underway, seen in this photo, to add a westbound C/D road to eliminate weaving issues along westbound I-20.  The project will also add a flyover from northbound US 49 to the westbound C/D road.

The I-20 interchange at Chunky, in eastern Newton County.  MS 889 is a hidden route between I-20 here and US 80 in Chunky.

The interchange between I-20 and I-59 South, west of Meridian airport.  This interchange begins a roughly 153-mile duplex between I-20 and I-59, stretching from here to Birmingham, AL.

The I-20/I-59 interchange at MS 145/22nd Ave in Meridian.  This interchange was originally built in the early 1950s along what was then a US 11/US 80 "bypass" of central Meridian, and was originally a cloverleaf.  The 2 missing loops were taken out as part of the project to upgrade the road to minimal Interstate standards for I-20/59 in the mid 1970s.  US 45 ran south from this interchange until the early 1990s.

I-20/I-59 at the Mississippi/Alabama state line (delineated by the thin white line).  The Alabama welcome center is on the right side of the image.

Terminus Photos

No photographs available.

Other Photos

An older-style shild which includes the state name.  Most interstate shields omit the state name, although older ones and a few of the brand new shields include it.  Photo by Adam Froehlig, taken in 2000.
A westbound shield that lacks the state name.  This was just west of MS 43.  Photo by Adam Froehlig, taken in 2000.
A new overlay being laid on westbound I-20 in eastern Rankin County.  Photo by Adam Froehlig, taken in 2000.
Eastbound I-20/I-59, between MS 19/MS 39 and US 45.  Photo by Adam Froehlig.
Overhead guide signage westbound on I-20/I-59.  The interchange with US 45 is a cloverleaf.  Photo by Adam Froehlig.
Guide signage along eastbound I-20 in western Lauderdale County, a few miles west of Meridian.  Photo by Adam Froehlig.

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Last Updated:  May 17, 2005

(C) 2005, Adam Froehlig