World's highest bridge passes crucial load test

World's highest bridge passes stress test, to open soon. A fleet of 96 trucks weighing a whopping 3,360 metric tons drove along the world's highest bridge — the Huajiang Grand Canyon Bridge in Guizhou province — on Monday to test its load-bearing capacity. The simulated traffic congestion was the final structural performance test for key bridge components under heavy load, marking a crucial step toward the bridge's anticipated opening in September.