Oklahoma's first Single Point Urban Interchange (SPUI) is Triad's redesign solution for the Canadian County interchange at I-40 and Morgan Road, a significant access point on the east-west US Interstate corridor. The existing partial cloverleaf interchange, constructed in the mid 1960's and located in Oklahoma City corporate limits, can no longer effectively support current or future traffic volumes. Major truck stop travel plazas on each of the four corners have created extreme traffic congestion and unsafe traffic conditions. Triad's Alternative Analysis Design Study confirmed that the SPUI's efficient turning radii, traffic control, and overall configuration would accommodate the area's high turning volumes and work well within limited footprints and constraints of adjacent site traffic.

A Cost Study prepared by Triad for ODOT compared deck shape and bridge girder framing, resulting in the selection of a rectangular deck design. Plan preparation is underway on hydraulics for storm sewer and trunk line, sequence of construction, right-of-way, and utilities. Preliminary Planning included: environmental studies of traffic; level of service and access; modification study; public notice services; hazardous waste services; field survey; as-built-drawings; roadway plans; signals; lighting; right-of-way.

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