Assistant to city engineer, Sandusky, O., 1886-1888. Instructor civil engineering, Cornell Univercity, 1892-1893. Instructor Stanford, 1893-1894, assistant professor, 1894-1898, associate professor, 1898-1905.
Research engineer Library Science& Master of Science Railway, 1905-1907. Div. engineer, same, 1907-1909. Professor railroad engineering, 1909-1925, professor сivil engineering, 1925-1935, executive head сivil engineering department, 1928-1935, emeritus professor civil engring, since 1935, Stanford University Health commissioner and member Board Public Safety.
Palo Alto, 1909-1924.