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Diverging-diamond interchange planned for Memorial at 169/Creek Turnpike; $13 million ODOT project aims to cut crashes
Summary
Officials described a $13 million diverging-diamond interchange (DDI) at Memorial and the 169/Creek Turnpike as a 50/50 federal-state funded project expected to improve safety and traffic flow on a corridor that handles about 47,000 vehicles and has roughly 134 accidents per year.
The Oklahoma Department of Transportation-backed diverging-diamond interchange (DDI) slated for the Memorial corridor at 169 and the Creek Turnpike is a roughly $13 million project that city and project representatives said is about a 50/50 split between federal and state funding.
Presenters said the DDI will be a new type of interchange for Tulsa that temporarily shifts traffic to the opposite side of the roadway while passing through the interchange; the design was characterized as reducing conflict points for left turns and improving pedestrian safety, and was cited as lowering collisions and increasing corridor efficiency by about a third based on national data.
Officials provided traffic context, saying roughly 47,000 vehicles pass through the intersection and that the interchange currently records about 134 accidents a year. Staff said drivers will encounter new overhead signage and that it will take a short learning period for drivers to adapt. The presentation directed residents to the South Tulsa Roads page on the city website for more information; a construction schedule or contractor name was not supplied in the remarks.
