Crews drilling the world's tallest bridge hit an aquifer and turned the problem into a 984-foot artificial waterfall.
The Huajiang Canyon Bridge in China now features a cascading water display.
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China holds 50 of the 54 tallest bridges on Earth. The Huajiang Canyon Bridge sits 2,051 feet (625 meters) above the river below.
It runs 2,890 meters (9,482 feet) end to end, hung from a 1,420-meter (4,660-foot) main span between two towers.
The bridge takes the height record from the Duge Bridge, which crosses the same river about 200 kilometers (120 miles) upstream.
The road it carries, the Liuzhi-Anlong Expressway, threads through Guizhou, one of China's poorest and most isolated provinces.
From Engineering Challenge to Tourist Attraction
Construction of the huge bridge started in early 2022, and by September 2025, work on it was finished.
It helps locals cross the canyon in a minute, down from roughly 70 minutes using old mountain passes and ferries.
Crews boring the tunnel at the bridgehead hit a flow of karst groundwater, no surprise in a province built on hollowed-out limestone.
Worried it might work away at the structure over time, the team penned it up instead of pumping it out.
The reservoir they built to catch the water holds 4,000 cubic meters (140,000 cubic feet).
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It supplies the rest area and waters farmland and orchards on the Guanling side of the canyon.
