In the event a railway bed or track, other than one owned by the municipality, occupies a portion of a street, sidewalk or neutral ground, the owner of the railway shall pay of the total cost of the improvement or improvements, the proportion that the area occupied by the railroad bears to the total area of the street, sidewalk, or neutral ground, or any portion thereof, to be improved and also the cost of the extra work made necessary by the presence of the track in the street, sidewalk, or neutral ground, or any portion thereof.
La. R.S. § 33:3463