The inspection and maintenance of the bridge was strengthened during flood season to ensure the safe operation of the railway. (Photos: Xinhua)

Maintenance workers work on the Jialing River railway bridge in Beibei District, southwest China's Chongqing Municipality, Aug. 21, 2020.

A maintenance worker works on the Jialing River railway bridge in Beibei District, southwest China's Chongqing Municipality, Aug. 21, 2020.

Maintenance workers work on the Jialing River railway bridge in Beibei District, southwest China's Chongqing Municipality, Aug. 21, 2020.

A maintenance worker works on the Jialing River railway bridge in Beibei District, southwest China's Chongqing Municipality, Aug. 21, 2020.

Maintenance workers work on the Jialing River railway bridge in Beibei District, southwest China's Chongqing Municipality, Aug. 21, 2020.