There is evidence in the documentary record that upper Halawa was highly significant to Kanaka Maoli. Most of the evidence may be, however, be in the oral record. The Hale O Papa and luakini are mentioned in the massive collection of Bishop Museum reports that took many years to finally be released. However, there was no archaeological evidence that these structures existed by the time of highway construction. The area has been greatly impacted by sugarcane plantations, homesteading, and light industrial use. The site of Waipao Heiau, for example, is currently occupied by a food distribution warehouse.