Louisiana Highway 10
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Louisiana Highway 10 is a state highway located in southern Louisiana. It runs 255.51 miles in an east–west direction from U.S. Highway 171 south of Leesville to the Mississippi state line east of Bog
A marker on eastbound LA 10 between Clinton and Greensburg identifying the route as part of the Zachary Taylor Parkway.
Louisiana Highway 21
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Louisiana Highway 21 is a state highway in Louisiana that serves St. Tammany and Washington Parishes. It spans 51.76 miles and is signed north and south.
Improved, multilane, divided section of LA 21 between Covington and Madisonville