David Tanner has over 30 years of experience in dam safety and structural monitoring instrumentation. His specialty lies in automation and design of systems for Hydro projects containing alkali aggregate reactions (AAR) in their concrete. Other areas of expertise lie in data interpretation, reporting and calibration of 3D finite element models using historical data. He has been using our MultiLogger Suite software for over 10 years to manage large implementations of data collection equipment including design and deployment of databases and evaluation of data and instrumentation performance.