Top Video-Building bamboo bridges, wooden bridges across rivers, ensuring safety for pedestrians

Demolition of old bridge, pouring concrete on bridge piers, placing stones, installing under bridge, leveling, screwing bridge deck, running railing ***************************** With my journey to help the less fortunate and myself. I fix and repair degraded and dangerous bridges that people often cross every day. I helped them rebuild a new and strong bridge. , there are many interesting and meaningful things for everyone to watch the video ***************************** #hoangthichien #buildabridge #bridgeengineering