Finding efficient and less expensive techniques for different aspects of culvert inspection is in great demand. This study assesses the potential infrared thermography (IRT) to detect presence cavities soil around a culvert, specifically adjacent pipe galvanized culverts. To identify cavities, we analyze thermograms, generated via long pulse thermography, using absolute thermal contrast, princi...

Buried culverts have been in service more than half a century and their age raises questions about reliable serviceability for the new standard vehicles. The gross weight axle spacing of these trucks play an important role on performance buried where culvert is covered with shallow fill heights. Field live load tests were conducted by driving loaded truck over some at slow speed while recording...