Responding to Forces of Nature Feb, 2012 By Carrie Johnson, P.E., SECB In Articles, Editorial This article is currently only available in PDF format, please click the link to the top right. About the author ⁄ Carrie Johnson, P.E., SECBCarrie Johnson, P.E., SECB, is a principal at Wallace Engineering Structural Consultants, Inc., Tulsa OK. Prev Vernon Avenue Bridge Next What is Structural Engineering Exactly?