MoDOT goes over the benefits of diverging diamond interchanges

Prior to the 2010 opening of the diverging diamond interchange at Dorset Road and Interstate 270 in Maryland Heights, Mo., a Missouri Department of Transportation official discusses the benefits of the new interchange.
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Prior to the 2010 opening of the diverging diamond interchange at Dorset Road and Interstate 270 in Maryland Heights, Mo., a Missouri Department of Transportation official discusses the benefits of the new interchange.