Built in 2013, by Raymond and Associates of Bayou LaBatre, Alabama (hull #506) as the SCF Safety Spirit for SCF Waxler Transportation Incorporated of St. Rose, Louisiana.
In 2016, the tug was acquired by the Kirby Corporation of Channelview, Texas. Where she was renamed as the Frio.
Powered by two, Mitsubishi S12R-YMPTK III diesel engines. With Twin Disc reduction gears, at a ratio of 6:1. She is a twin screw towboat, rated at 2,520 horsepower.