Infrasense recently completed bridge deck condition evaluations of 25 bridge decks on or over Interstates 15, 80, and 84 using high-speed ground penetrating radar (GPR), infrared thermography (IR), and high-resolution video (HRV). Of the 25 decks evaluated in this project, 11 were surveyed using GPR, IR, and HRV; the remaining 14 decks were surveyed using only GPR. High-resolution visual data was collected using a 4K camera to identify surface features that could affect the interpretation and analysis of IR data, and to map patching and spalling at the surface.
Data was collected over each bridge deck at 50 mph, preventing any disruptions to normal highway traffic. In total, data collection took only 3 days to complete. The deck condition information will be used by the Utah Department of Transportation (UDOT) to plan future maintenance and rehabilitation efforts.