Hawaii Route 240Hawaii Route 240, known as the Honokaʻa-Waipiʻo Road, is a state highway in Hawaii [County, Hawaii|Hawaii County], Hawaii, United States.Route descriptionThe highway is located on the island of Hawaii, and travels from southeast of the city of Honokaa northwest to Waimanu Natural [Estuarine Research Reserve], on the coast of the island. The highway connects the settlement located by the Reserve to the main highway, Hawaii Route 19.Major intersections