800米跨径！湖南最大悬索桥合龙

近日，洞庭溪沅水特大桥主桥顺利合龙，为2026年张官高速公路全线通车奠定了基础。

The main bridge of the Dongtingxi Yuanshui Grand Bridge was successfully closed recently, marking a major milestone toward the full opening of the Zhangjiajie–Guanzhuang Expressway in 2026.

洞庭溪沅水特大桥位于湖南怀化市境内，全长1707米，其主桥设计为跨径800米双塔单跨悬索桥，是湖南省在建跨径最大的悬索桥。

Located in Huaihua City, Hunan Province, the Dongtingxi Yuanshui Grand Bridge has a total length of 1,707 meters. Its main bridge is designed as a double-tower, single-span suspension bridge with an 800-meter span, making it the largest suspension bridge under construction in Hunan in terms of span.

张官高速公路主线全长约82公里，设计速度100公里/小时，通车后将直接串联张家界、怀化、湘西三大旅游经济圈，构建起直通东盟口岸的交通大动脉，缩短武陵山区至长江经济带2小时车程，对推动区域协同发展具有重要作用。

The main line of the Zhangjiajie–Guanzhuang Expressway is approximately 82 kilometers long, with a designed speed of 100 km/h. Once open to traffic, it will directly link the three major tourism and economic circles of Zhangjiajie, Huaihua, and Xiangxi, creating a key transportation artery leading directly to ASEAN ports. It will also shorten the driving time from the Wuling Mountain area to the Yangtze River Economic Belt by two hours, and play an important role in advancing regional coordinated development.