How engineers tackle the immense challenge of repairing the John Day Dam

Nature · Published 7 October 2026 Swipe more like this →

In short: Witness the high-stakes engineering required to maintain critical infrastructure. This video follows Riley and the crew as they undertake a difficult repair mission at the John Day Dam.

The footage provides a behind-the-scenes look at the complex technical work involved in dam maintenance. As part of National Geographic's mission to explore the edge of what is possible, this segment highlights the specialized skills needed to manage such massive structures.

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