Culvert collapse closes Alaska Highway

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WATSON LAKE, Yukon — The Alaska Highway has been re-opened, after a pothole large enough to swallow a tractor-trailer opened up on Tuesday, forcing the closure of the highway.

The crater was caused by the collapse of an $11million culvert, which was touted as the largest culvert of its type in the world when it was installed just four years ago. It carried an 80-year guarantee.

Road crews have erected a single-lane bridge over the affected area to allow traffic to continue through the region.

Local officials say it was fortunate no vehicles were crossing over the culvert when it collapsed. The cause of the collapse is still unknown.

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