Bachelor of Civil Engineering, Washington University, 1942; Master of Science, Harvard University, 1949.
Junior partner, Horner and Shifrin, St. Louis, 1948; from assistant professor to associate professor сivil engineering, Washington University, St. Louis, 1949-1955; professor and chairman сivil engineering department, Washington University, St. Louis, 1955-1958; private practice, St. Louis, 1958-1963; partner, Reitz and Jens, Inc. Cons. Engineers, St. Louis, 1963-1969; president, Reitz and Jens, Inc. Cons. Engineers, St. Louis, since 1969.
Chairman Dam and Reservoir Safety Council, Missouri, 1983-1985, National Ad Hoc Response to Disaster Situations. Chairman ports committee Regional Commerce and Growth Association St. Louis, since 1988. Active Mississippi River Parkway Commission for Missouri.
1986-1988, facillator Environmental Water Committee Metropolitan St. Louis, since 1975. Captain United States Army, 1942-1945. Fellow American Society of Civil Engineers (co-founder expansive soils research council 1972-1977).
Member American Geophysical Union, Building Officials Conference American, Engineers Club St. Louis, American Consultant Engineers Council, Consultant Engineers Council Missouri, Urban Land Institute, American Institute Hydrology (certified professional hydrologist-groundwater), National Research Council (committee levee policy for the national flood insurance program 1981-1982).
Married Marjorie Johanning, November 22, 1952. Children: Gail, Carol, Martha, Paul.