Zhongshan Bridge is located north of Sule Pagoda Mountain in Lanzhou Yellow River Iron Bridge is the oldest in Lanzhou, Old Bridge, there is "the world of the Yellow River Bridge, No. 1," said.
    

Zhongshan Bridge, the predecessor of the Department of the Yellow River pontoon bridge. Yellow River pontoon bridge is the Hongwu years (AD 1372), Song of public FENG in Lanzhou, 7 miles west of the city was built of. Hongwu nine years (1376), defending the public and the more this bridge Deng moved 10 miles west of the city known as the "Chen-yuan bridge." Hongwu eighteen years (AD 1385), Lanzhou Command YANG Lian Wei will be moved to the current location of pontoon bridge - Baita mountain. Lanzhou has also left behind when there is a bridge weighing 10 tons, 5.8 meters of the cast iron pontoon column 3, known as "general column." Column cast of "Hongwu nine years, the Year of Bing-Chen, auspicious days in August, a lawsuit defending the public taking part column on the pontoon bridge built to the south of Sri Lanka, the Department of Rail rope 120 Joe" message.
The year of the Yellow River pontoon bridge, with 24 ship, horizontal in the Yellow River above the distance between vessels 5 meters from the long wooden connected shops in order to board, enclosed by a bar; north and south sides vertical iron posts four, large wooden pillars 45 root, there are two 50-meter-long rope of thick iron will be fixed on the river boat. Then the removal of the Yellow River freezes in winter and spring, then again re-take the pontoon bridge. "Stand up to see peach blossoms in March ice, ice Pan Green Green is the Willow River Bridge," a poem that was the pontoon bridge itself. Lanzhou, one of the Ancient Eight Sights "Dragon-lock Kau" also refers to such a view.
     Guangxu Thirty-three years (AD 1907), the Qing government in Lanzhou, Gansu Tao Peng League One proposal and under the auspices of the Governor l-yun, using the treasury silver 306.69 thousand two, by the German construction business Tailai Matheson Kayou Si, Americans over Takaramoto , German der Rohe for technical guidance will be converted into a pontoon bridge length 233.3 meters, 7.5 meters wide and the Yellow River, the first iron bridges, the first name "Lanzhou Yellow River Iron Bridge", 1942, changed to "Zhongshan Bridge."
Iron bridge construction, the Ka You have to ensure labor protection warranty 80 years. But lasted only 42 years, that is 1949, the Iron Bridge in war-affected suspended 11 days and nights. Although the restored after passage through the repair, but the People's Bank of the bridge deck shaking uncertainty has been difficult to shoulder the increasingly heavy transport tasks. In 1954, the People's Government carried out a comprehensive renovation of Iron Bridge reinforcement, an increase of arc steel-arch beam, so that this becomes the old iron bridge not only strong and durable, but also majestic, magnificent spectacular.
     As time goes by, the Lanzhou city blocks have been erected more than 10 beautiful shape, structure, novel, advanced technology, imposing extraordinary rail road bridge. The ancient Yellow River Iron Bridge is not the only channel of communication north and south of the Yellow River. Nevertheless, people still admire it, watch it, because it is like an epic, supper was engraved the history of changes through the ages of Lanzhou, Lanzhou, People's splendid show the art picture.