Who can tell me something about the bus No.6 turning over Bridge No.3 in the night when Liuzhou thundered?

According to Mr. Liang's description, at about 0: 20 that night 10, he drove home from the office meeting and drove from east to west from Hudong Bridge. When we reached the bridge, we saw a bus coming in the distance. Because of the rain, he pays great attention to the road conditions. Suddenly, I saw the opposite bus hit a construction fence (the bridge was being repaired), and then the whole car swung to the left. Perhaps there were too many passengers in the car, so the driver couldn't turn back, so he rushed to the sidewalk and ran into the guardrail. After the car hit the guardrail, it didn't fall into the river immediately, but the front wheel was suspended and the chassis and rear wheel landed. After shaking for a second or two, it may be that the passengers rushed forward because of inertia after the impact, and the car began to fall, and soon fell into the river about 30 meters away from the bridge deck.