Parākramabāhu also continued his program of hydraulic works begun in Dakkhinadesa, including the renovation and reconstruction of reservoirs and canals wrecked during the Chola invasion. Inscriptions detailing his work can be found at the Maha Vewa near Uruwela, Padaviya Vewa and Panda Vewa in North-Western Province. A column discovered at the bottom of the Padaviya Vewa in the 19th century included the inscription "Made for the benefit of the whole world by the prosperous Sri Parakrama-Bahu, born at Sinhapura, minded of what was fit to be done". Though the "Culavamsa" attributes the "construction" of various tanks to him, it has been suggested that much of Parākramabāhu's work was "renovation", and indeed that some of the projects undertaken by his successor, Nissanka Malla of Polonnaruwa, may have been attributed to him. In all Parākramabāhu is said to have restored or constructed over 216 reservoirs and tanks.