Louisiana Highway 42

Louisiana Highway 42
Route information
Maintained by Louisiana DOTD
Length47.8 mi (76.9 km)
Existed1955 renumbering–present
Major junctions
West end US 61 in Prairieville
East end LA 22 in Springfield
Location
CountryUnited States
StateLouisiana
ParishesEast Baton Rouge, Ascension, Livingston, Tangipahoa
Highway system
  • Louisiana State Highway System
← LA 41→ LA 43

Louisiana Highway 42 (LA 42) is a state highway in Louisiana that serves East Baton Rouge, Ascension, Livingston, and Tangipahoa parishes. It spans 47.8 miles (76.9 km) in a general east–west direction.

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