Louisiana Highway 18
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| Route information | ||||
| Maintained by Louisiana DOTD | ||||
| Length: | 79.7 mi (128.3 km) | |||
| Existed: | 1955 renumbering – present | |||
| Major junctions | ||||
| West end: |
  LA 1 / LA 3089 in Donaldsonville
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 LA 3017 in Harvey
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| East end: |
    US 90 Bus. / LA 23 in Gretna
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| Location | ||||
| Parishes: | Ascension, St. James, St. John the Baptist, St. Charles, Jefferson | |||
| Highway system | ||||
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→
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| Location: | Westwego |
| Length: | 0.62 mi (1.00 km) |
| Existed: | 1960s–present |
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LA 20 in North Vacherie
LA 3213 in Wallace
LA 640 in Edgard
I-310 in LulingUS 90 in Bridge City
LA 45 in Marrero
...
Wikipedia