Hawaii Route 540Route 540 is a State [highway |state highway] that stretches from Hawaii [Route 50|Route 50] in Eleele back to Route 50 in Kalaheo on the island of Kauai.Route descriptionThe road is mainly an alternative to Route 50 and for the first, the Pacific Ocean is in view as the highway travels easterly. Route 540 then takes a sharp turn north at the Kauai Coffee plant, towards Kalaheo. Numerous agriculture fields surround the road.Major junctions