Green Bay Bridge Closure: Wisconsin Officials Block Interstate 43 Span After 'Sagging' Reports (VIDEO)

A 400-foot span of Wisconsin's Leo Frigo Bridge started sagging on Wednesday, forcing authorities to close off the section of Interstate 43 that runs over the Fox River.

"There's a part that's sagging," a driver who called 911 to alert officials of the curious happenstance said.

"A part that's sagging?" the operator responded in disbelief.

"Instead of a bump, it's a dip," the motorist replied, according to recordings posted on CNN's affiliate station WLUK.

After law enforcement officials checked out the bridge, they concluded that one of the piers holding it up had lowered into the ground about two feet, according to Gov. Scott Walker, who spoke with reporters on Wednesday shortly after the event was brought to his attention. The bridge will be closed until further notice.

"We understand the disruption this is going to cause to traffic," Wisconsin Transportation Secretary Mark Gottlieb announced on Wednesday.

The bridge, which carries 40,000 commuters a day, was built in 1980 and last checked out for safety measures during August of last year, Kim Rudat, regional communications manager for the Wisconsin Department of Transportation told CNN. Officials deemed it safe, and performed a few touch-ups shortly after.

But motorists who use the bridge on a regular basis let out a collective groan when news of the closure reached the public.

"It's a big hassle, because of all the construction that's going around town," motorist Dennis Kelln of Green Bay told WLUK. "The downtown bridge was closed for how long? Now this one is out? It's just like it's a never-ending problem here."

The bridge isn't in danger of breaking in half, but it still must be worked on, state officials said.

This past spring, the Interstate 5 bridge over the Skagit River in Mount Vernon, Washington, collapsed after a trailer hit a support holding up the bridge.

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