THESIS FATIGUE CRACK PROPAGATION IN UNDERWATER CARBON FIBER REINFORCED POLYMER (CFRP)-RETROFITTED STEEL PANELS Submitted by Anuj Valsangkar Department of Civil and Environmental Engineering In partial fulfillment of the requirements For the Degree of Master of Science Colorado State University Fort Collins, Colorado Fall 2015 Master’s Committee: Advisor: Hussam Mahmoud Guillermo A. Riveros Frederick W. Smith Troy Holland