Hawaii Route 550Route 550 is a road stretching from Hawaii [Route 50|Route 50] in Waimea, [Kauai County, Hawaii|Waimea] to Kōkeʻe State Park on the island of Kauai.Route descriptionLeaving Waimea, Hawaii Route 550 increases in elevation to over two thousand feet, at times the road is winding and steep. For much of its length, Hawaii Route 550 is adjacent to Waimea Canyon.Major intersections