University Of Illinois SATC Barracks Under Construction Real Photo Postcard

The image captures the construction of a large, arched steel-frame structure, likely dating from the early to mid-20th century. This type of expansive, clear-span design was characteristic of airship hangars, major exhibition halls, or large industrial assembly buildings, demonstrating the period's advancements in structural steel engineering and fabrication techniques. The riveted or bolted truss system allowed for immense internal volumes devoid of supporting columns.