La. Civ. Code art. 685
Current with operative changes from the 2024 Third Special Legislative Session
A fence on a boundary is presumed to be common unless there is proof to the contrary.
When adjoining lands are enclosed, a landowner may compel his neighbors to contribute to the expense of making and repairing common fences by which the respective lands are separated.
When adjoining lands are not enclosed, a landowner may compel his neighbors to contribute to the expense of making and repairing common fences only as prescribed by local ordinances.
La. C.C. § 685