Robert D. “Bob” Bryant has celebrated 50 years with P. Joseph Lehman Inc. Consulting Engineers, Hollidaysburg.

Bryant is a partner in the company and a project engineer in its highway department.

Company founder P. Joseph Lehman Sr. hired Bryant in June 1974, following his graduation from Penn State University with a degree in mechanical engineering and water resources.

Bryant earned his state professional engineering license in 1981, and has managed hundreds of transportation projects across the state for Lehman Engineers, the company said.