Bridge (IMAGE) Virginia Tech Caption As the nation's bridges face the need for continual monitoring and rehabilitation, Virginia Tech mechanical engineers are participants in a research project to develop the Bridge Prognostic System, using an energy independent, active sensing system that can be observed from remote locations. Credit Virginia Tech Photo Usage Restrictions With article about the Bridge Prognostic System 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.