Wanapum dam

(Newser) - Crisis at least temporarily averted: A massive crack in a dam on Washington state's Columbia River has been downgraded to a "non-failure emergency" after it apparently fixed itself. After divers discovered the 65-foot-long by 2-inch-wide crack last week, officials warned the dam could fail and lowered water levels...

(Newser) - A dam in the Columbia River in Washington State has developed a crack 65 feet long and two inches wide, and officials are warning of a "potential failure." The public, however, doesn't face any danger, officials say, per the Seattle Times . "Catastrophic failure is very unlikely,...