Reclamation Information Sharing Environment (RISE)

Detection of voids along conduits has been attempted in the past using various non-invasive technologies. While progress has been made, underlying challenges exist that have resulted in the limited adoption of these systems. Developing a set of methods and analysis techniques that can help locate voids in a variety of different mediums (concrete, metal, etc.) in a variety of different conditions (dry, wet, below/above the water table, etc.) is a valuable tool for use in facility inspections. This report details three different studies where multiple geophysical methods were deployed to detect voids at three different Reclamation facilities. Results of these methods and summary tables of their findings are included to provide guidance on future investigations.