Naha Airport Expressway
The Naha Airport Expressway is an expressway on Okinawa Island in Okinawa Prefecture, Japan. The expressway has a length of. The Ministry of Land, Infrastructure, Transport and Tourism maintains most of the expressway, but the West Nippon Expressway Company is the owner and operator of a short section of the expressway at its eastern end. It is signed E58 as a spur route of the Okinawa Expressway under the "2016 Proposal for Realization of Expressway Numbering". It also carries the entire length of National Route 506.