Texas Natural Resources Code - NAT RES § 61.016. Boundaries for Areas with No Marked Vegetation Line

(a) To determine the “line of vegetation” in any area of public beach in which there is no clearly marked line of vegetation (for instance, a line immediately behind well-defined dunes or mounds of sand and at a point where vegetation begins) recourse shall be to the nearest clearly marked line of vegetation on each side of the unmarked area.

(b) The “line of vegetation” for the unmarked area shall be the line of constant elevation connecting the two clearly marked lines of vegetation on each side.

(c) If the elevation of the two points on each side of the area are not the same, the extension defining the “line of vegetation” shall be the average elevation as between the two points, but if there is no clearly marked line of vegetation, the “ line of vegetation” shall not extend inland further than 200 feet from the seaward line of mean low tide.

(d) The “line of vegetation” is dynamic and may move landward or seaward due to the forces of erosion or natural accretion.  For the purposes of determining the public beach easement, if the “line of vegetation” is obliterated due to a meteorological event, the landward boundary of the area subject to the public easement shall be the line established by order under Section 61.0171(a) or as determined by the commissioner under Section 61.0171(f).