三项重大基础设施顺利投运（记录中国）

Group 1 - The world's highest bridge, the Huajiang Canyon Bridge, officially opened on September 28 after over three years of construction [4] - The bridge spans 2890 meters with a main span of 1420 meters and a height of 625 meters above the water surface, making it the tallest and longest in mountainous regions globally [4] - The opening of the bridge significantly reduces travel time between Guizhou's counties, from 2 hours to 2 minutes, and from 3 hours to approximately 1.5 hours for other routes, enhancing resource connectivity and local economic development [4] Group 2 - The Shen-Jia high-speed railway segment from Shenyang to Jiamusi, covering 430 kilometers with a design speed of 350 km/h, officially commenced operations on September 28 [4] - Travel time from Shenyang North Station to Changbai Mountain Station is now as short as 1 hour and 53 minutes, while the journey from Beijing Chaoyang Station to Changbai Mountain Station takes about 4 hours and 33 minutes [4] - The Xiang-Jing high-speed railway, spanning 116 kilometers with a design speed of 350 km/h, connects Xiangyang East Station to Jingmen West Station, further improving the high-speed rail network in western Hubei [5]