Stephen Mahin, PEER researcher and Byron and Elvira Nishkian Professor of Structural Engineering at UC Berkeley, was awarded the James D. Cooper Best Paper Award at the Fifth National Seismic Conference on Bridges & Highways, in San Mateo. The paper, "Use of Partially Prestressed Reinforced Concrete Columns to Reduce Post-Earthquake Residual Displacements of Bridges," co-authored by Junichi Sakai and Hyungil Jeong, was presented on Wednesday, September 20, 2006. This work was funded by the State of California and the National Science Foundation through the Pacific Earthquake Engineering Research Center. The award was bestowed in recognition of an exemplary contribution to the profession for a paper with great potential impact, contribution to society and high overall quality. This is the first year the award has been given. Read the full paper (pdf file).