Louisiana Highway 506 runs in a general Northwest - Southeast direction from
LA-124 in LaSalle Parish, to Hebron Rd in Caldwell Parish. Beginning at its Southeastern terminus at LA-124, LA-506 runs 4.3 miles in a northern direction to the southern terminus of
LA-849 east of Kelly. It then continues west for 3 miles, where it crosses
U.S. Highway 165, then continues west approximately 10 miles. Its Northern terminus is at a point where State maintenance ends and the road becomes gravel. Except for the 1 mile section between its intersection with LA-843 to its intersection with US-165, the entire route is scheduled for deletion as part of Louisiana's "Right Sizing" program. ==Louisiana Highway 507==