The Nujiang Bridge on the Sichuan-Tibet Line of National Highway 318, a lonely pier stands on the edge of the Nu River, like a monument of heroes! Thousands of passing vehicles will slow down every day, and the whistle will be saluted! Originally, this pier next to the Nujiang Bridge, sealing a road repair hero, when the Nujiang Bridge was built, the hero accidentally fell into the cement pier that was being watered, comrades tried their best to save the hero...