Century-old Zhongshan bridge takes on new look(1/6)

Workers clean the century-old Zhongshan bridge over the Yellow River in Lanzhou, northwest China's Ganxu Province, Sept. 6, 2022. (Photo: China News Service/Li Yalong)

Zhongshan Bridge, also called the first iron bridge over the Yellow River, was built 1907.

Workers clean the century-old Zhongshan bridge over the Yellow River in Lanzhou, northwest China's Ganxu Province, Sept. 6, 2022. (Photo: China News Service/Li Yalong)

Workers clean the century-old Zhongshan bridge over the Yellow River in Lanzhou, northwest China's Ganxu Province, Sept. 6, 2022. (Photo: China News Service/Li Yalong)

Workers clean the century-old Zhongshan bridge over the Yellow River in Lanzhou, northwest China's Ganxu Province, Sept. 6, 2022. (Photo: China News Service/Li Yalong)

Workers clean the century-old Zhongshan bridge over the Yellow River in Lanzhou, northwest China's Ganxu Province, Sept. 6, 2022. (Photo: China News Service/Li Yalong)

Workers clean the century-old Zhongshan bridge over the Yellow River in Lanzhou, northwest China's Ganxu Province, Sept. 6, 2022. (Photo: China News Service/Li Yalong)