Interstate 20 in Louisiana

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Interstate 20 marker

Interstate 20
Route information
Maintained by Louisiana DOTD
Length: 189.87 mi[1] (305.57 km)
Existed: 1957 (designated);
1960 (signed) – present
Major junctions
West end: I‑20 at the Texas state line west of Greenwood, LA
 

US 79 / US 80 in Greenwood
I‑220 / LA 3132 in Shreveport
I‑49 in Shreveport
US 71 in Shreveport–Bossier City
I‑220 in Bossier City
US 371 in Minden
US 167 in Ruston
US 165 in Monroe
US 425 in Rayville

US 65 in Tallulah
East end: I‑20 / US 80 at the Mississippi state line west of Vicksburg, MS
Highway system
  • Louisiana Highway System
LA 19 LA 20

Interstate 20 (I-20) spans a total of 189.87 miles (305.57 km) in an east–west direction through the state of Louisiana.[1][2] It runs from the Texas state line west of Greenwood to the Mississippi state line, where it crosses the Mississippi River into Vicksburg.

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 Tullulah. About 15 miles east of Tallulah, I-20 crosses over the Mississippi River into Mississippi in Vicksburg.


Exit list[edit]

Parish Location Mile[2] km Exit Destinations Notes
Caddo   0.0 0.0 I‑20 west – Dallas Western terminus; TexasLouisiana state line
Greenwood 3.7–
4.0
6.0–
6.4
3 LA 169 – Mooringsport
US 79 south – Carthage, TX
5.4–
5.9
8.7–
9.5
5 US 79 north / US 80 – Greenwood
Shreveport 8.4–
8.7
13.5–
14.0
8 US 80 (Industrial Loop) / LA 526 east At Flournoy; US 80 signed on westbound only
10.3–
10.9
16.6–
17.5
10 Pines Road
11.4–
12.2
18.3–
19.6
11 I‑220 east (By-Pass)
LA 3132 east – To Alexandria
Western terminus of I-220 and LA 3132 (Exit 1B–C on both); LA 3132 known as Inner Loop Expressway (not signed)
12.8–
13.1
20.6–
21.1
13 Monkhouse Drive To Shreveport Regional Airport
14.7–
15.0
23.7–
24.1
14 Jewella Avenue
15.8–
16.2
25.4–
26.1
16A US 171 (Hearne Avenue) To State Fair Grounds
16.4–
16.7
26.4–
26.9
16B US 79 / US 80 (Greenwood Road)
16.8–
17.9
27.0–
28.8
17A Lakeshore Drive, Linwood Avenue
17.3–
18.1
27.8–
29.1
17B I‑49 south – Alexandria Current northern terminus of I-49 (Exit 206 on I-49); extension north into Arkansas under construction with estimated completion in 2016 or 2017[3]
18.3–
18.7
29.5–
30.1
18A Common Street, Line Avenue Westbound exit is via Exit 18D
18.5 29.8 18C Fairfield Avenue Eastbound entrance and westbound exit
18.7–
18.9
30.1–
30.4
18D Common Street, Louisiana Avenue Eastbound entrance and westbound exit
18.5–
19.3
29.8–
31.1
19A US 71 / LA 1 north (Spring Street)
LA 1 south (Market Street)
West end of US 71 concurrency
CaddoBossier line ShreveportBossier City line 18.7–
19.6
30.1–
31.5
Bridge over Red River
Bossier Bossier City 19.5–
19.9
31.4–
32.0
19B Traffic Street Western terminus of LA 72 (not signed)
20.0–
20.3
32.2–
32.7
20A Hamilton Road, DiamondJacks Boulevard
20.5–
20.7
33.0–
33.3
20B–C LA 3 (Benton Road)
US 71 south (Barksdale Boulevard)
East end of US 71 concurrency; southern terminus of LA 3
Eastbound exit and westbound entrance; signed as Exit 20B to LA 3 and 20C to US 71
21.1–
21.5
34.0–
34.6
21 LA 72 (Old Minden Road)
To US 71 south (westbound only)
22.0–
22.4
35.4–
36.0
22 Airline Drive Airline Drive is LA 3105 (not signed)
23.5–
23.9
37.8–
38.5
23 Industrial Drive – Barksdale AFB Industrial Drive is LA 782-2 (not signed)
25.9–
26.9
41.7–
43.3
26 I‑220 west (By-Pass) Eastern terminus of I-220 (Exit 17B on I-220)
  32.9–
33.5
52.9–
53.9
33 LA 157 – Fillmore, Haughton
Webster   38.4–
39.1
61.8–
62.9
38 PR 117 (Goodwill Road, Camp Minden)
Dixie Inn 44.2–
44.6
71.1–
71.8
44 US 371 north – Cotton Valley, Springhill West end of US 371 concurrency
Minden 46.7–
47.2
75.2–
76.0
47 LA 159 north – Minden
US 371 south – Sibley
East end of US 371 concurrency; southern terminus of LA 159
49.5–
49.9
79.7–
80.3
49 LA 531 – Dubberly, Minden
  52.1–
52.5
83.8–
84.5
52 LA 532 to US 80 – Dubberly
Bienville   54.8–
55.2
88.2–
88.8
55 US 80 – Ada, Taylor
  60.8–
61.3
97.8–
98.7
61 LA 154 – Athens, Gibsland
  67.1–
67.6
108.0–
108.8
67 LA 9 – Homer, Arcadia
Arcadia 69.4–
69.8
111.7–
112.3
69 LA 151 – Dubach, Arcadia
Lincoln Simsboro 76.7–
77.0
123.4–
123.9
77 LA 507 – Simsboro Northern terminus of LA 507
  77.8–
78.2
125.2–
125.9
78 LA 563 – Industry
Grambling 80.9–
81.4
130.2–
131.0
81 LA 149 – Grambling Northern terminus of LA 149
Ruston 84.5–
84.9
136.0–
136.6
84 LA 544 – Ruston
85.3–
85.8
137.3–
138.1
85 US 167 – Ruston, Dubach US 167 is concurrent with US 63 and LA 146 (not signed); southern terminus of US 63
86.5–
87.0
139.2–
140.0
86 LA 33 – Ruston, Farmerville
Choudrant 92.9–
93.2
149.5–
150.0
93 LA 145 – Choudrant, Sibley
Ouachita   101.5–
101.9
163.3–
164.0
101 LA 151 – Downsville, Calhoun
  103.4–
104.1
166.4–
167.5
103 US 80 – Calhoun
  107.0–
107.7
172.2–
173.3
107 PR 25 (Camp Road)
Cheniere 108.4–
108.9
174.5–
175.3
108 LA 546 to US 80 – Cheniere
West Monroe 111.7–
112.1
179.8–
180.4
112 Well Road Well Road is LA 3249 (not signed)
112.3–
112.8
180.7–
181.5
113 Downing Pines Road
113.6–
114.2
182.8–
183.8
114 LA 617 (Thomas Road)
114.9–
115.6
184.9–
186.0
115 LA 34 (Stella Street, Mill Street)
115.8–
116.2
186.4–
187.0
116A Fifth Street
West MonroeMonroe line 115.6–
117.4
186.0–
188.9
Bridge over Ouachita River
Monroe 116.5 187.5 116B
US 165 Bus. (Jackson Street) / LA 15Civic Center
Eastbound exit and westbound entrance
116.5–
116.7
187.5–
187.8
117A Hall Street Eastbound exit and westbound entrance
116.8–
117.3
188.0–
188.8
117C
US 165 Bus. / LA 15Civic Center
Eastbound exit is via Exit 116B
117.0 188.3 117D South Second Street, Layton Avenue Eastbound exit is via Exit 116B
117.5–
117.9
189.1–
189.7
117B LA 594 (Texas Avenue) / 18th Street
118.3–
118.9
190.4–
191.4
118A–B US 165 – Bastrop, Columbia Signed westbound as Exit 118A to Columbia (US 165 south) and 118B to Bastrop (US 165 north)
119.3 192.0 Westbound entrance only; from Pecanland Mall
119.8–
120.6
192.8–
194.1
120 Garrett Road – Monroe Airport
Millhaven 123.8–
124.3
199.2–
200.0
124 LA 594 – Millhaven
Richland Start 131.4–
131.9
211.5–
212.3
132 LA 133 – Start, Columbia
Rayville 137.5–
137.8
221.3–
221.8
138 US 425 – Rayville, Archibald US 425 also signed as LA 137
Bee Bayou 141.1–
141.7
227.1–
228.0
141 LA 583 (Bee Bayou Road) Southern terminus of LA 583
Holly Ridge 145.2–
145.7
233.7–
234.5
145 LA 183 / PR 202 – Holly Ridge Southern terminus of LA 183
Dunn 147.8–
148.5
237.9–
239.0
148 LA 609 – Dunn
Delhi 153.1–
153.6
246.4–
247.2
153 LA 17 – Delhi, Winnsboro
Madison   157.4–
158.1
253.3–
254.4
157 LA 577 – Waverly
Tallulah 170.8–
171.3
274.9–
275.7
171 US 65 – Tallulah, Vidalia
Richmond 172.5–
173.1
277.6–
278.6
173 LA 602 – Richmond
  182.2–
182.4
293.2–
293.5
182 LA 602 – Mound
Delta 185.6–
186.1
298.7–
299.5
186 US 80 west / LA 3218 – Delta West end of US 80 concurrency
187.5–
189.2
301.8–
304.5
Vicksburg Bridge over Mississippi River
189.2 304.5 I‑20 east / US 80 – 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[4] (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.[4] 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.[4]

References[edit]

External links[edit]

Route map: Google / Bing


Interstate 20
Previous state:
Texas
Louisiana Next state:
Mississippi