"Apperson Hall, the main engineering building for work in civil engineering, electrical engineering, and physics, was entirely remodeled during the biennium and enlarged by fifty percent through the addition of a third story. 90 x 120 feet in size, the building now comprises space on the first floor for the departments of Electrical Engineering and Light and Power; on the second floor for the departments of Electrical Engineering, Highway Engineering, and Physics; and on the third floor for the departments of Civil Engineering, Railroad Engineering, and Irrigation Engineering. The new arrangement gives much more space than the old building."

(From the Biennial Report 1918-1920, p. 20)