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A 710-foot concrete dam on the Colorado River still had detonation cord sitting in several boreholes along the restricted road leading up to it, a bomb squad traced it back to the dam's own construction, and the feds now have to decide whether to pull ...

A 710-foot concrete dam on the Colorado River still had detonation cord sitting in several boreholes along the restricted road leading up to it, a bomb squad traced it back to the dam's own construction, and the feds now have to decide whether to pull it...