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State Route 25/I-475: Diverging Diamond Interchange (DDI) in Perrysburg 
Crews installed a Diverging Diamond Interchange (DDI) at I-475 and SR 25 in Perrysburg, providing pedestrian access across interchange, and providing highway lighting in the corridor.  E.S. Wagner Co., of Oregon, Ohio, was selected as the prime contractor for this $8 million project. 
The project was substantially completed in 2017, but finish work including final pavement striping will occur in spring 2018. At that time, lane restrictions are possible on SR 25, between Eckel Junction Road and Jefferson Street.  
Studies have shown that a DDI reduces crashes between 19% and 46%.  There are 26 conflict points in a conventional interchange compared to only 14 in a DDI.   Other benefits from a DDI include a reduction in signal delays and shorter pedestrian crossings.  There is also a DDI on Roberts Road over Interstate 270 in Columbus. 



 Other DDI in Ohio


​There's a DDI at I-270 and Roberts Road in Columbus.


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 Videos & Graphic

June DDI update video copy.jpg  SR 25 DDI graphic.jpg DDI WTOL.jpg   DDI ground breaking.jpg  ddi in perrysburg video.JPG