The expressway is one of the important components of the west national arterial highway to bestowing favour in Yichang of Hubei, construct things numerously in such projects as the bridge and tunnel, etc. 湖北省宜昌至恩施高速公路是沪蓉西国道主干线的重要组成部分之一,桥梁和隧道等工程构造物众多。