Leiyang Bridge (3 of 3) (IMAGE) University of Southern California Caption Underside view of the 10 meter long bamboo test bridge on Hunan University campus. Credit Yan Xiao Usage Restrictions Credit USC Viterbi School of Engineering License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.