author
T. R. (Thomas Radford) Agg
1878–1947
A pioneer in highway engineering, he wrote practical books that helped explain how rural roads should be planned, built, and maintained. His work grew out of decades of teaching, research, and public service in Iowa and beyond.
1 Audiobook
American Rural Highways
by T. R. (Thomas Radford) Agg
About the author
Born in Fairfield, Iowa, on May 17, 1878, Thomas Radford Agg studied at Iowa State College, earning a B.S. in electrical engineering in 1905 and a professional degree in civil engineering in 1914. He went on to build a long career at Iowa State, serving first as an assistant professor and then, from 1916 to 1946, as a professor of civil engineering.
Agg is best remembered for his work in road and pavement engineering. He wrote books including American Rural Highways and The Construction of Roads and Pavements, blending technical knowledge with a clear interest in how better roads could improve everyday life. Records from Iowa State also show that he worked as a consulting road engineer for the Iowa Highway Commission and as a highway research specialist for the U.S. Bureau of Public Roads.
He died in 1947, leaving behind a body of work that reflects an important moment in the growth of modern transportation infrastructure in the United States. For listeners today, his writing offers a window into the practical challenges and ambitions of early twentieth-century road building.