Explosive growth along the four-lane, divided Keystone Parkway Corridors in Carmel, Ind., not only resulted in snarls, but as many as 200 accidents a year.
The creative roadway solution called for converting Keystone into a four-lane parkway with full access, grade-separated, roundabout interchanges in order to enhance traffic flow while improving safety and access for pedestrians and bicyclists.
The six interchanges incorporate an innovative double-teardrop shape, said to be the tightest in the nation and the first of its kind in Indiana.
The project has earned national recognition for its innovation and potential viability in other U.S. communities.
Key Players
Developer/Owner: City of Carmel, Ind.
GC: Walsh Construction, Crown Point, Ind.
CM: American Structurepoint Inc., Crown Point, Ind.
Engineer/Civil and Structural Engineer: American Structurepoint Inc., Crown Point, Ind.
Submitted by: American Structurepoint Inc.
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