This 75 in. (191 cm) wide, 88 in. (224 cm) deep, and 20 ft. (6 m) long shelter has spiral venting and drainage, which required skillful, precise galvanizing. Buried underground amid water transfer and intense moisture in a highly corrosive environment, future maintenance of this structure is inherently impossible. Only galvanizing can afford superior corrosion prevention in such a harsh and threatening environment. Whether it is used as a storm shelter, wine cellar or storage facility, galvanizing adds strength to the steel structure and provides a maintenance-free, dependable corrosion defense.