一、工程概况湖南省常德至吉首高速公路是国家实施西部开发战略长渝通道的组成部分,是国家高速网杭瑞线在湖南省境内的一段。起点位于常德斗姆湖互通,与益常高速公路相接,终点位于吉首,与吉茶高速公路相接。是湘西对外开放、经济发展的重要运输通道。项目全长223.7公里,起点常德至茶庵铺长71.6公里,设计速度100公里/小时、路基宽26米;茶庵铺至终点吉 I. Project Overview The Changde-Jishou Expressway in Hunan Province is an integral part of the country’s implementation of the strategy of long-term development of the western region and is a section of the State High-speed Net Hangrui Line in Hunan Province. The starting point is located in Changde Dumu Lake intercommunication with the Yi Chang Expressway phase, the end located in Jishou, and Ji Chau highway connected. It is an important transportation channel for opening up to the outside world and economic development in western Hunan. The project is 223.7 km long, with a starting point of 71.6 km from Changde to Tea Temple, a design speed of 100 km / h and a width of 26 meters;