Two sinkhole-related dropouts recently occurred along a major highway in Citrus County, FL. The dropouts resulted in the closure of the inside traffic lanes for both directions of traffic. Ambient Technologies, Inc. (ATI) was part of an emergency response team to both assess and test geological conditions within the dropout area. GeoView, Inc. (subsidiary of Ambient Technologies) was on site within 3 hours of the call to assess geological conditions using both high and low frequency ground penetrating radar (GPR).