By Martin Teal, Mark Baker, Robert Ettema, and John Trojanowski In the early morning of March 14, 2019, the Spencer Dam on the Niobrara River in northern Nebraska suddenly failed during…

Lexington, Ky. — On Sunday, Nov. 6, 1977, a small embankment dam located above Toccoa Falls Bible College in Georgia failed, releasing a wall of water through a steep ravine…