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Diverging Diamond Interchange

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DDI_bridge

It may not be popular, but the DDI is safer

  By Dave Vieser. There has been a 58​ percent​ reduction in accidents at the Exit 28 interchange in Cornelius since the Diverging Diamond Interchange (DDI) opened in 2014. ​Our stats tend to mirror those from other parts of the country where ​the innovative interchange has been implemented.​ Cornelius was the first in the state. It’s […]