Swarm Of Mayflies Causes Crashes, Closure Of Pennsylvania Bridge

A surreal scene descended on Eastern Pennsylvania Saturday night — a swarm of mayflies caused multiple crashes and forced officials to shut down a bridge. A bridged section of Route 462 was closed after the swarm appeared around 10 p.m. local time Saturday. Officials said the flies swarmed around the lights of the bridge, died and fell to the ground. The layer of mayfly carcasses was about an inch thick on the road, officials said. “It was like a blizzard in June, but instead of snow, it was mayflies,” Wrightsville, Pa., Fire Chief Chad Livelsberger said. “It was very slick, almost like ice.” Authorities said three motorcycle crashes were reported amid the flurry of flies, and a vehicle flipped onto its side. No serious injuries were reported. “It was hard to stop,” Livelsberger said. “When you go to pull out, all your tires would do was spin.” Officials brought in a street sweeper and reopened the bridge around midnight.

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