Built in 2014, by Boconco Incorporated of Bayou LaBatre, Alabama (hull #150) as the Higman Legacy for Higman Barge Lines Incorporated of Houston, Texas.
In 2018, Higman Barge Lines Incorporated was acquired by the Kirby Corporation of Channelview, Texas. Where the tug was renamed as the Waller.
Powered by two, Caterpillar 3512C diesel engines. With Twin Disc reduction gears, at a ratio of 5.96:1. She is a twin screw towboat, rated at 3,620 horsepower.