The Old Capitol Museum is proud to host the celebratory centennial exhibition by IIHR - Hydroscience & Engineering at the University of Iowa in 2020. Featuring some of the university's major contributions to large-river and other fluids-related research, the exhibit brings this work to life with extraordinary artifacts, stellar storytelling, and historical photos -- each worth 1,000 words. 

A River Flowed Through It highlights many of IIHR's physical modeling projects in a breathtaking, interactive exhibit layout. Learn about IIHR's contributions to the war effort during World War II; examine model ships from IIHR's 60-year-old ship hydrodynamics program; watch how IIHR's patented drop-shaft structure design improves municipal stormwater systems; see how IIHR has contributed to better sanitation in the early days of indoor plumbing; and learn about some of IIHR's most impactful research, including the Mississippi River Lock and Dam System.