Collaboration between the U.S. Army Engineer Research and Development Center (ERDC) and the U.S. Army Corps of Engineers (USACE) New Orleans District is a critical step in ensuring the stability of vital infrastructure. ERDC is assisting the district in inspecting the dewatered bays for voids beneath the Old River Low Sill Structure, located about 25 miles south of Vidalia, Louisiana, as part of the Old River Control Complex.