| Louisiana Highway 3127 | ||||
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| Route information | ||||
| Maintained by Louisiana DOTD | ||||
| Length: | 42.1 mi (67.8 km) | |||
| Existed: | c. 1975 – present | |||
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| Location | ||||
| Parishes: | Ascension, St. James, St. John the Baptist, St. Charles | |||
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LA 20 in North Vacherie
LA 3213 in North Vacherie
LA 640 in Edgard
Louisiana Highway 3127 (LA 3127) is a state highway in Louisiana that serves Ascension, St. James, St. John the Baptist, and St. Charles Parishes. It spans 42.1 miles (67.8 km) in a northwest to southeast direction. It parallels LA 18 along the west bank of the Mississippi River, providing a much shorter inland bypass of the River Road. It is bannered in all four cardinal directions depending upon the part of the route.