Lanzhou Yellow River Railway Bridge was built that year.

Lanzhou Yellow River Railway Bridge, known as "the first bridge of the Yellow River in the world", is familiar to people, but few people can tell the history of its groundbreaking construction nearly a hundred years ago.

It is said to be a pioneering work because its construction took place at the beginning of the 20th century when China was poor and weak. It is a pioneering work because it is the first successful cooperation between Gansu, which lives in the barren northwest, and westerners on the premise of independence and voluntariness; It is a pioneering work because its building materials, including a rivet, an iron bar and even the paint used to brush the iron bridge after completion, were transported from Wan Li to Lanzhou under the extremely backward transportation conditions in China at that time; It is said that it is a pioneering work because its construction is the crystallization of the joint efforts of engineers from Germany and the United States, craftsmen from China and all walks of life in Gansu; It is said that it is a pioneering work because its completion has ended the history that there has been no permanent bridge in the upper reaches of the Yellow River for thousands of years. ...

Zhongshan Bridge is located in the Yellow River Railway Bridge under Baita Mountain in the north of Lanzhou. It is the oldest ancient bridge in Lanzhou and is known as "the first bridge of the Yellow River in the world".

The predecessor of Zhongshan Bridge is the Yellow River pontoon bridge. The Yellow River pontoon bridge was built in the fifth year of Hongwu in Ming Dynasty (A.D. 1372) and was built by Sheng Feng, Duke of Song Dynasty, 7 miles west of Lanzhou. In the ninth year of Hongwu in Ming Dynasty (1376), Deng Yu, Duke of Wei moved this bridge to the west of the city 10, and called it Zhenyuan Bridge. In the 18th year of Hongwu in Ming Dynasty (AD 1385), Lanzhou Wei ordered the pontoon bridge to be moved to its present position-at the foot of Baita Mountain. Up to now, there are still three cast iron boat columns weighing 10 ton and 5.8 meters long in Lanzhou, which are called "general columns". The words "Hongwu nine years, Chen Bingsui, auspicious day of the ecliptic in August, company commander Si Weiguo built a column in the south of the pontoon bridge and tied it with iron rope 120 feet" were cast on the column.

At that time, the Yellow River pontoon bridge used 24 large ships, which were arranged horizontally above the Yellow River with a distance of 5 meters. They were connected with long wood, paved with wooden boards and fenced. There are four vertical iron pillars and 45 large wooden pillars on the north and south banks, and two thick iron ropes each 50 meters long fix the ship on the river. In winter, the Yellow River will be demolished when it freezes, and the pontoon bridge will be rebuilt in spring. The poem "peach blossom ice in March, the ice on Panhe Bridge is green and willow-colored" is a portrayal of the pontoon bridge at that time. The "Dragon Falling Dragon", one of the eight ancient scenic spots in Lanzhou, also refers to this kind of scenery.

In the thirty-third year of Guangxu (AD 1907), under the proposal of Peng Yingjia of Lanzhou Road and the sponsorship of Yun Sheng, the governor of Gansu Province, the Qing government spent 306,690 yuan from the state treasury, with German businessman Tailai, American capital preservation and German Derouet as technical guidance to transform the pontoon bridge into the first iron bridge of the Yellow River with a width of 7.5 meters and a length of 233.3 meters. The original name was ".

When the railway bridge is completed, Kayou's labor protection will be guaranteed for 80 years. However, it only lasted for 42 years, that is, 1949, and the railway bridge was interrupted by the war 1 1 day and night. Although the traffic was restored after the emergency repair, the footbridge deck was rickety and it was difficult to undertake the increasingly busy transportation task. 1954, the people's government carried out a comprehensive renovation and reinforcement of the iron bridge, adding curved steel frame arch beams, making this ancient iron bridge not only durable, but also magnificent.

With the passage of time, Lanzhou has built more than 10 railway and highway bridges with beautiful appearance, novel structure, advanced technology and extraordinary momentum. This ancient iron bridge across the Yellow River is no longer the only channel connecting the north and south of the Yellow River. Nevertheless, people still admire and appreciate it, because it is like an epic, engraved with the historical changes of Lanzhou from ancient times to the present, showing the splendid artistic picture of Lanzhou people.