The world's oldest bridge was hiding in plain sight for nearly a century.

History · Published 29 September 2026 Swipe more like this →

In short: Archaeologists once mistook this massive Bronze Age structure for a temple or royal tomb. Now identified as the oldest bridge and hydraulic system ever found, it reveals how ancient Sumerians managed water during a climate crisis. Experts are now racing to save it from the very element it once controlled.

Excavated between the 1920s and 1930s, the structure was long dubbed the 'Enigmatic Construction.' While early researchers speculated it served religious or funerary purposes for the priest-kings of Lagash, recent investigations by the Girsu Project have reclassified it as the world's oldest bridge. Beyond its role as a crossing, the site functioned as a sophisticated hydraulic tool, allowing Sumerians to manipulate water flow during a period of environmental instability.

Led by curator Sébastien Rey and site conservator Ebru Torun, the Girsu Project has spent the last decade uncovering the bridge's true purpose. Over an eight-year period, the team has worked across a 1500m2 site to document and preserve the ruins. Today, the project faces a critical challenge: the same water that the bridge was designed to manage now threatens to destroy it.

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