Parshall, Ralph L.
Water Resources Archive
Archives and Special Collections
Colorado State University
Fort Collins, Colorado 80523-1019
3 linear feet
Ralph Leroy Parshall, engineer, contributed significantly to the field of irrigation engineering with the development of a flow-measuring device that became commonly known as the Parshall flume and continues to be widely used today. Materials in the collection include Parshall's patent on his "Venturi flume water stage recording instruments," awards that Parshall received, publications, copies of talks he presented on KOA radio in Denver, and a number of lantern slides depicting flumes, weirs, plans, and various graphs and tables. The collection contains some materials related to Parshall's son, Maxwell Parshall, as well as to Carl Rohwer, also from the Irrigation Investigation Section of the U.S. Department of Agriculture.