Abstract: A plastic structural panel and ground erosion barrier made therefrom in which the panel is in strip form relatively narrow compared to its length and which in general is a stretched Z-shaped cross sectional design with opposed male and female interlock edges for mating association with adjacent panel strips. The panel strip design has a "V" configuration on opposite faces and allows optional top-to-top alignment of adjacent panels for a composite deep "V" cross sectional shaped wall or alternate top-to-bottom turnover of adjacent panel strips to provide a thicker box ribbed cross sectional shape for the wall. The composite deep V-shaped cross section provides a greater breadth of coverage but less section modulus than the box ribbed construction.