tower silo

A tower silo is a tall, cylindrical farm building constructed above ground. It is typically made of masonry, wood, or enameled steel. The primary purpose of a silo is to store silage, which is partially fermented fodder, often made from grass (haylage). This airtight structure protects the silage, preserving it in a succulent and slightly sour condition that is palatable for farm animals.12

Tower silos commonly range from 10 to 18 feet (3 to 5 meters) in diameter and 30 to 50 feet in height. They are often made of steel with an inner surface of fused glass or porcelain to prevent corrosion. Silage is typically removed from the bottom using a power-operated unloader, and it must be used at a consistent rate daily to prevent spoilage.2