| Louisiana Highway 20 | ||||
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| Route information | ||||
| Maintained by Louisiana DOTD | ||||
| Length: | 36.6 mi (58.9 km) | |||
| Existed: | 1955 renumbering – present | |||
| Major junctions | ||||
| West end: |
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| East end: |
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| Location | ||||
| Parishes: | Terrebonne, Lafourche, St. James | |||
| Highway system | ||||
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US 90 in Gibson
US 90 in Chacahoula
LA 24 in Schriever![]()
LA 1 / LA 308 in Thibodaux