"Every day, I walk four to five kilometers in midair at a height of more than 100 meters. We focus on inspections ranging from the tightness of a bolt to the structural state of bridge steel beams." 22-year-old Tsering Tenzin (first from the left in the back row) introduced his work.

Tsering Tenzin started working here in 2021. In order to better understand the status of bridges, tunnels, culverts and other equipment, he studied design sketches and books and learned from experienced masters during the day; at night, he followed the masters to shuttle between bridges and tunnels, and carefully inspected the bridge foundation, steel frame connection, tunnel top, etc., to ensure safe driving. "I feel that my work is very meaningful,” he said.