Plougastel Bridge

…in 1930 he completed the Plougastel Bridge across the Elorn River at Brest. With three 612-foot (187-metre) spans, this was the largest reinforced-concrete bridge constructed up to that time.

…his most renowned work, the Plougastel Bridge over the Elorn Estuary near Brest, France. This bridge featured three 176-meter (585-foot) hollow-box arch spans, then the longest concrete spans in the world. Because of the great scale of this structure, Freyssinet studied the creep, or movement under stress, of concrete. This…