Investigators are tying to find out how a single accident caused the collapse of a major bridge north of Seattle. And, as KIRO's Lee Stoll reports, officials are now warning it could be months before ... more 
Investigators are tying to find out how a single accident caused the collapse of a major bridge north of Seattle. And, as KIRO's Lee Stoll reports, officials are now warning it could be months before a replacement is built. less 
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Sat, May 25, 2013 1:22 PM EDT