Sod Revetment

— A strong and durable revetment commenced as soon as the parapet is raised to the level of the tread of the banquette. A course of sods is then laid horizontally or a little inclined from the banquette; the course consists of 2 Stretchers and 1 header, alternating, the end of the header laid to the front The stretchers are 12 inches square, and 18 inches long and 12 inches broad1. AH sods are thick. headers the 4 … are inches … Steel. — A name for low steel, made by fusing wrought iron with carbon in a crucible; after which it is cast into an ingot and worked with a hammer. As it contains le carbon than high steel, it. has greater specific gravity.