2008年7月，中国建成了世界上最长的跨海大桥——青岛海湾大桥。该桥横跨青岛市的黄海湾，全长41.58公里，其中跨海部分长35.4公里，是当时世界上最长的跨海大桥。

该桥的建设历时6年，投资超过110亿元人民币。它由两个主塔和128个桥墩组成，其中最高的主塔高度为232.5米，相当于80层楼高。桥面采用了全球最先进的斜拉桥技术，使得桥梁在强风、浪潮等恶劣环境下也能够保持稳定。

这座跨海大桥的建成，不仅缩短了青岛市中心区和城市周边地区的交通时间，也为中国的基础设施建设树立了榜样。它的建设标志着中国在桥梁建设领域的地位和技术水平已经迈上了新的台阶。

In July 2008, China completed the world's longest cross-sea bridge - the Qingdao Haiwan Bridge. The bridge spans the Yellow Sea bay in Qingdao, with a total length of 41.58 kilometers, of which the cross-sea part is 35.4 kilometers, making it the longest cross-sea bridge in the world at the time.

The construction of the bridge took six years and cost over 11 billion yuan. It consists of two main towers and 128 bridge piers, with the tallest main tower reaching a height of 232.5 meters, equivalent to 80 floors. The bridge deck uses the most advanced cable-stayed bridge technology in the world, making the bridge stable even in harsh environments such as strong winds and waves.

The completion of this cross-sea bridge not only shortened the travel time between the central area of Qingdao and its surrounding areas, but also set an example for China's infrastructure construction. Its construction marks that China's status and technological level in the bridge construction field have reached a new level.