I have 55 years of experience, and specialize in the field of structural engineering with specific knowledge in the areas of structural steel, reinforced concrete and structural stability. I have published on such topics as composite steel-concrete columns, design aids for reinforced concrete and shear strength of inverted T bridge girders. I have testified 6 times on topics such as steel strut stability, foundation settlement risk and bridge collapse after timber pile failed. I was elected to and served board of direction assignments for both the concrete industry (ACI) and the civil engineering professional society (ASCE). I have been designated as a Distinguished Member of American Society of Civil Engineers. I am an ACI Fellow.