Interstate 20 in Louisiana

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Interstate 20 marker

Interstate 20
Route of I-20 highlighted in red
Route information
Maintained by Louisiana DOTD
Length 189.844 mi[1][a] (305.524 km)
Existed 1960 – present
Major junctions
West end I-20 at Texas state line west of Greenwood, LA
 
East end I-20 / US 80 at Mississippi state line west of Vicksburg, MS
Location
Parishes Caddo, Bossier, Webster, Bienville, Lincoln, Ouachita, Richland, Madison
Highway system
  • Louisiana Highway System
LA 19 LA 20

Interstate 20 (I-20) is a part of the Interstate Highway System that spans 1,539.38 miles (2,477.39 km)[2] from Reeves County, Texas to Florence, South Carolina. Within the state of Louisiana, the highway travels 189.84 miles (305.52 km)[1] from the Texas state line west of Greenwood to the Mississippi River, which it crosses into Vicksburg, Mississippi.

I-20 traverses the northern portion of the state, serving the metropolitan areas of ShreveportBossier City 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[edit]

Texas state line to Shreveport (Interstate 49)[edit]

Interstate 20 enters Louisiana about 20 miles east of Marshall, Texas, near Waskom. Interstate 20 passes through Greenwood to the north of town, where US 80/ 79 serve as the main east-west highway. I-20 enters Shreveport about 5 miles east of Greenwood. I-20 intersects I-220 (the north Shreveport bypass) and Hwy 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.

Shreveport to Monroe[edit]

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 and heads east towards Monroe. On its way to Monroe, I-20 traverses mainly rural, hilly terrain as it passes through the towns of Minden, Arcadia, Grambling, Ruston, and West Monroe.

Monroe to Mississippi state line[edit]

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 miles east of Tallulah, I-20 crosses over the Mississippi River into Mississippi in Vicksburg.

Exit list[edit]

Parish Location mi[1] km Exit Destinations Notes
Caddo 0.000 0.000 I-20 west – Dallas Continuation in Texas
0.039 0.063 Texas Travel Information Center (westbound exit within Louisiana)
Greenwood 2.292–
2.928
3.689–
4.712
Greenwood Rest Area & Visitor's Center (eastbound only)
3.592–
4.085
5.781–
6.574
3 US 79 south – Carthage, Texas
LA 169 – Mooringsport
5.368–
5.894
8.639–
9.485
5 US 79 north / US 80 – Greenwood
Shreveport 8.370–
8.886
13.470–
14.301
8 US 80
LA 526 east (Industrial Loop)
Location also known as Flournoy; US 80 signed westbound only
10.272–
10.959
16.531–
17.637
10 Pines Road To Louisiana Baptist University
11.349–
12.295
18.264–
19.787
11 I-220 east (By-Pass)
LA 3132 east (Inner Loop Expressway) – To Alexandria
Western terminus of I-220 and LA 3132 (exits 1B–C on both); Alexandria signed eastbound only
12.749–
13.180
20.518–
21.211
13 Monkhouse Drive To Shreveport Regional Airport
14.670–
15.053
23.609–
24.225
14 Jewella Avenue To State Fair Grounds and Louisiana State Exhibit Museum (signed eastbound)
15.824–
16.224
25.466–
26.110
16A US 171 (Hearne Avenue) To State Fair Grounds and Louisiana State Exhibit Museum (signed westbound)
16.403–
16.761
26.398–
26.974
16B US 79 / US 80 (Greenwood Road) To Willis-Knighton Medical Center
16.850–
17.972
27.117–
28.923
17A Lakeshore Drive, Linwood Avenue To LSU Medical Center and Cross Lake
17.236–
18.167
27.739–
29.237
17B I-49 south – Alexandria Exit 206 on I-49; northern end of open I-49 segment
18.260–
18.752
29.387–
30.178
18A Common Street, Line Avenue Westbound exit via exit 18D
18.475–
18.752
29.733–
30.178
18C Fairfield Avenue Eastbound entrance and westbound exit
18.907 30.428 18D Common Street, Louisiana Avenue Westbound exit only (other movements via exit 18A)
18.506–
19.367
29.783–
31.168
19A US 71 / LA 1 north (Spring Street)
LA 1 south (Market Street)
Western end of US 71 concurrency; to Shreveport Riverfront Convention Center and VA Medical Center
Red River 19.394–
19.655
31.212–
31.632
Red River Bridge (Purple Heart Recipients Highway)
Bossier Bossier City 19.551–
19.995
31.464–
32.179
19B Traffic Street To Louisiana Boardwalk
19.995–
20.373
32.179–
32.787
20A Hamilton Road, DiamondJacks Boulevard To CenturyLink Center
20.509–
20.651
33.006–
33.235
20B
20C
LA 3 (Benton Road)
US 71 south (Barksdale Boulevard)
Eastern end of US 71 concurrency; southern terminus of LA 3; eastbound exit and westbound entrance
21.110–
21.554
33.973–
34.688
21 LA 72 (Old Minden Road)
To US 71 south (westbound only)
To Convention Complex
22.006–
22.425
35.415–
36.090
22 Airline Drive Airline Drive is LA 3105 (not signed)
23.426–
24.007
37.700–
38.636
23 Industrial Drive – Barksdale AFB Industrial Drive is LA 782-2 (not signed)
25.870–
26.939
41.634–
43.354
26 I-220 west (By-Pass) Eastern terminus of I-220; exit 17B on I-220
Haughton 32.872–
33.602
52.902–
54.077
33 LA 157 – Haughton, Fillmore
Webster 38.438–
39.165
61.860–
63.030
38 Goodwill Road – Camp Minden Goodwill Road is Parish Road 117
Dixie Inn 44.164–
44.663
71.075–
71.878
44 US 371 north – Cotton Valley, Springhill Western end of US 371 concurrency
Minden 46.697–
47.322
75.152–
76.157
47 US 371 south – Sibley
LA 159 north – Minden
Eastern end of US 371 concurrency; southern terminus of LA 159
49.470–
50.017
79.614–
80.495
49 LA 531 – Minden, Dubberly
52.173–
52.592
83.964–
84.639
52 LA 532 to US 80 – Dubberly
Bienville 54.833–
55.324
88.245–
89.035
55 US 80 – Ada, Taylor
60.846–
61.461
97.922–
98.912
61 LA 154 – Gibsland, Athens
67.145–
67.726
108.059–
108.994
67 LA 9 – Arcadia, Homer To Lake Claiborne State Park
Arcadia 69.455–
69.907
111.777–
112.504
69 LA 151 – Arcadia, Dubach
Lincoln 76.633–
77.213
123.329–
124.262
77 LA 507 – Simsboro Northern terminus of LA 507
77.776–
78.453
125.168–
126.258
78 LA 563 – Industry To Simsboro via LA 563 south
Grambling 80.982–
81.666
130.328–
131.429
81 LA 149 – Grambling Northern terminus of LA 149; to Grambling State University
Ruston 83.413 134.240 83 Tarbutton Road Under construction; scheduled for completion around 2019
84.500–
85.069
135.990–
136.905
84 LA 544 – Ruston To Louisiana Tech University
85.408–
86.002
137.451–
138.407
85 US 167 – Ruston, Dubach US 167 is concurrent with US 63 and LA 146 (not signed); southern terminus of US 63
86.556–
87.281
139.298–
140.465
86 LA 33 – Ruston, Farmerville To Lake D'Arbonne State Park
Choudrant 92.910–
93.439
149.524–
150.375
93 LA 145 – Choudrant, Sibley To Jimmie Davis State Park
94.925–
95.851
152.767–
154.257
Tremont Eastbound Rest Area (eastbound only)
96.514–
97.309
155.324–
156.604
Tremont Westbound Rest Area (westbound only)
Ouachita 101.535–
102.137
163.405–
164.374
101 LA 151 – Calhoun, Downsville
103.484–
104.267
166.541–
167.801
103 US 80 – Calhoun
107.010–
107.845
172.216–
173.560
107 PR 25 (Camp Road)
Cheniere 108.464–
109.087
174.556–
175.559
108 LA 546 to US 80 – Cheniere
West Monroe 111.660–
112.235
179.699–
180.625
112 Well Road Well Road is LA 3249 (not signed)
112.399–
112.988
180.889–
181.837
113 Downing Pines Road To Hamilton Expo Center and Well Road
113.667–
114.418
182.929–
184.138
114 LA 617 (Thomas Road)
114.959–
115.744
185.009–
186.272
115 LA 34 (Stella Street, Mill Street) To West Monroe Historic & Business District
115.828–
116.491
186.407–
187.474
116A Fifth Street
West MonroeMonroe line 115.672–
117.482
186.156–
189.069
World War II Memorial Bridge over Ouachita River
Monroe 116.533–
116.614
187.542–
187.672
116B
US 165 Bus. / LA 15
Jackson Street – Civic Center
Eastbound exit and westbound entrance
116.614–
116.829
187.672–
188.018
117A Hall Street Eastbound exit and westbound entrance
116.859–
117.467
188.066–
189.045
117C
US 165 Bus. / LA 15 – Civic Center
Eastbound exit via exit 116B
117.120–
117.250
188.486–
188.696
117D South Second Street, Layton Avenue Eastbound entrance and westbound exit (other movements via exit 116B)
117.558–
118.111
189.191–
190.081
117B LA 594 (Texas Avenue) / 18th Street
118.356–
119.151
190.476–
191.755
118 US 165 – Bastrop, Columbia Signed westbound as exit 118A (south) and 118B (north)
119.205 191.842 Pecanland Mall Drive Westbound entrance only (further access via exit 120)
119.833–
120.771
192.853–
194.362
120 Pecanland Mall Drive
Garrett Road – Monroe Airport
Eastbound exit only to Pecanland Mall, complete access to Garrett Road
Millhaven 123.716–
124.605
199.102–
200.532
124 LA 594 – Millhaven To Russell Sage Wildlife Area
Richland Start 131.506–
132.135
211.638–
212.651
132 LA 133 – Start, Columbia
Rayville 137.639–
137.934
221.508–
221.983
138 US 425 – Rayville, Archibald To Winnsboro via US 425 south
141.241–
141.937
227.305–
228.425
141 LA 583 (Bee Bayou Road) Southern terminus of LA 583
145.275–
145.939
233.797–
234.866
145 LA 183 / PR 202 – Holly Ridge Southern terminus of LA 183
147.955–
148.725
238.110–
239.350
148 LA 609 – Dunn
Delhi 153.137–
153.860
246.450–
247.614
153 LA 17 – Delhi, Winnsboro
Madison 157.574–
158.322
253.591–
254.795
157 LA 577 – Waverly
Tallulah 170.960–
171.523
275.133–
276.040
171 US 65 – Tallulah, Vidalia
Richmond 172.632–
173.367
277.824–
279.007
173 LA 602-1 – Richmond Southern terminus of LA 602-1
Mound 182.355–
182.787
293.472–
294.167
182 LA 602-2 – Mound Southern terminus of LA 602-2
Delta 183.941–
184.865
296.024–
297.511
Mound Rest Area & Visitor's Center (westbound only)
185.780–
186.440
298.984–
300.046
186 US 80 west / LA 3218 – Delta Western end of US 80 concurrency
Mississippi River 187.763–
189.844
302.175–
305.524
Vicksburg Bridge
I-20 / US 80 east – Vicksburg Continuation in Mississippi
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related routes[edit]

Interstate 420
Location Monroe
Length 10.2 mi[3] (16.4 km)
Existed 1950s–1964

Interstate 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.[3] 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 Expressway.[3]

Notes[edit]

  1. ^ For the federal government's purposes, the Federal Highway Administration lists Louisiana's portion of I-20 as 189.87 miles (305.57 km) in length.[2]

References[edit]

  1. ^ a b c Louisiana Department of Transportation and Development, Highway Inventory Unit (2016). "LRS Conversion Tool". Louisiana Department of Transportation and Development. Retrieved July 30, 2017. 
  2. ^ a b "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". Federal Highway Administration. February 22, 2017. Retrieved July 30, 2017. 
  3. ^ a b c Weingroff, Richard (April 7, 2011). "The Second Battle of New Orleans: Vieux Carré Riverfront Expressway (I-310)". Highway History. Federal Highway Administration. Retrieved September 14, 2011. 

External links[edit]

Route map: Google

KML is from Wikidata


Interstate 20
Previous state:
Texas
Louisiana Next state:
Mississippi