Missouri's Branson Airport has filed suit against its designers and builders, alleging improper execution of the foundation and other "reckless actions" led to the 2011 collapse of a runway two years after the facility was completed. The suit claims designer Burns & McDonnell Engineering Co., contractor McAninch Corp. and others failed to comply with regulatory and design criteria required to prevent subsidence. As a result, a large area of the foundation collapsed near the intersection of the tarmac and a 7,140-ft-long, 150-ft-wide runway, the lawsuit claims. Foundation construction involved excavating rock and soil from ridgetops and using them in layers to fill in adjacent valleys. "McAninch deposited large amounts of organic material in the lifts of fill...and applied lifts of fill that were too thick and not properly compacted," according to the suit.
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