Barges, trows and schooners were "hulked" at high tide, and have since filled with silt. They also save a kobold from evil trows. The vessels included steel barges, Severn trows and concrete ships. Trows and barges have been built in Brockweir from at least the eighteenth century. Trows historically sailed to trade in Bristol from Llandogo. The cargo was then reloaded onto trows and taken up river to Monmouth and Hereford. Trows are generally inclined to be short of stature, ugly, and shy in nature.