Why does the horn sound when driving across the Nujiang Bridge in Qamdo?

Remind vehicles to drive slowly.

The Nujiang Bridge is located in Liuku Town, Lushui County, Nujiang Prefecture, Yunnan Province. Construction started in January 1988 and was put into use in June 1991. The bridge is 678 meters long and 15.8 meters wide. It is a bridge spanning the Nujiang River. The single-box variable-section three-way prestressed reinforced concrete continuous bridge ranks first in the country and second in Asia with its ultra-long single span. It has become the only traffic lifeline in Liuku City connecting the east and west sides.

Since the day it was put into use, the Nujiang Bridge has been shouldering the arduous task of vehicle traffic on both sides of the Taiwan Strait at full capacity. Today, the guardrails and pedestrian crossings on the entire bridge have cracked and peeled off to varying degrees.

In order to continue to extend the service life of the Nujiang Bridge and facilitate people's travel, with the approval of the state committee and government, and with the strong support of the Lushui County Party Committee and Government, the reinforcement and maintenance work of the Nujiang Bridge was completed in 2010. The construction period was officially launched on June 20, and the construction period was determined to be four months. During the construction period, traffic control will be implemented on the bridge, and vehicle traffic is strictly prohibited.