Condition Evaluation of 11 Bridge Decks in Michigan
Infrasense completed high-speed infrared thermography scanning of 11 bridge decks for the Michigan DOT. The infrared data was collected with corresponding high resolution video at driving speed using a vehicle-based system. Using this high-speed setup, no lane closures were required, and most importantly, traffic was unaffected. The infrared and video data collected for each of the 11 decks was analyzed to quantify and map overlay debonding, rebar-level delamination, patching, and spalling. Michigan DOT plans to use the deck condition information for prioritizing and planning rehabilitation projects.
High resolution visual data was collected to account for surface features that may appear as "hot spots" in the IR data but may not represent subsurface delaminations.