Bill Williams River Concrete Bridge Fire Damage Assessment Jul, 2008 By Martha Davis, P.E., Paul Tremel, P.E. and Alex Pedrego In Feature This article is currently only available in PDF format, please click the link to the top right. About the author ⁄ Martha Davis, P.E.Martha Davis, P.E. is a structural engineer with HDR. She is a registered professional engineer in Arizona and California. Prev Amazing Georgia Tech Structures Lab Next Precast Concrete – A Unique Application