40' USRA Steel Rebuilt Box Car

Prototype Information

The 40′ USRA steel rebuilt boxcar began as a standard wood boxcar design issued by the United States Railroad Administration during World War I. Railroads received thousands of these 40′ cars starting in 1918 to standardize freight operations under federal control.

By the 1930s and 1940s, many railroads rebuilt these aging wood cars with steel sides, ends, and roofs. They kept the original underframe but modernized the car bodies for durability and better performance. These rebuilt boxcars remained active into the 1950s and 1960s, often shifting to secondary roles as newer all-steel cars entered service. They helped bridge the gap between early wood construction and the fully steel fleets that followed.