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Old Posted Nov 15, 2010, 11:41 PM
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Arch City Arch City is offline
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MoDot's 1st St. Louis Diverging Diamond

MoDot was the first State Department of Transportation to build a Diverging Diamond Interchange (DDI) in North America. MoDot's first was in Springfield, Missouri. It second is in suburban St. Louis (Maryland Heights), which recently opened.

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Last edited by Arch City; Nov 16, 2010 at 12:00 AM.
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