The Michigan Department of transportation just got big recognition for something they’re doing in the state that the American Society of civil engineers thinks is so great they put on their list of ''2021 Infrastructure Gamechangers.'' The Michigan Department of Transportation (MDOT) has been using a remote-piloted boat called sonar Emily which stands for, EMergency Integrated LanYard, to check around bridge foundations to make sure there’s not something called “scour“ happening around the bridge structure. Scour is when the water currents erode the streambed around the bridge foundation, MDOT says it’s a leading cause of bridge failure.