Sylvania Interchange Study

Sylvania Interchange Study

In 2004 the Ohio Department of Transportation commissioned a planning study, called the I-475 Strategic Plan, which defined a coherent overall strategy for the improvement of I-475/US-23 system around the Toledo metropolitan area to meet transportation needs through the year 2035.  The study was finalized in 2007 and included a variety of alternatives specifically for the US-23/Monroe Street interchange to address inadequate ramp horizontal geometry and insufficient capacity issues.

In November 2017 the City of Sylvania took the first initial step since the Strategic Plan was released and commissioned funding for the Sylvania Interchange Study.  The scope of the Study was to expand upon the suggested guidance provided in the Strategic Plan and further review viable alternatives to improve geometric deficiencies, increase capacity and accessibility at the Monroe Street interchange.  The Study limits include the interchange, Monroe Street from Harroun Road to the traffic signal at the Fifth Third Bank/Country Squire Plaza, and Alexis Road from Monroe Street to Elliott Drive.

Over the last nine months the project engineer, The Mannik & Smith Group, obtained traffic counts, updated traffic modeling projections, and generated several geometric layouts of the modifications.  The layouts were further refined and run through the traffic models to generate performance measures and levels of service.

The City of Sylvania is announcing that the recommended geometric configuration is a Hybrid Diamond Loop.  The recommended configuration was developed into two differing geometric alternatives, named Alternative A and Alternative B.  Each alternative includes:

  • New exit/entrance ramps from US-23 to Monroe Street/Alexis Road.
  • New bridges for northbound US-23 exit and southbound US-23 entrance ramps over the Ottawa River.
  • Reuse the existing Monroe Street bridge over US-23.
  • Widen eastbound Monroe Street from 2 lanes to 3 lanes from Harroun Road to US-23.
  • Removal of traffic signal at Acres Road and replaced with a right-in/right-out (RIRO) approach.

The City will be conducting an open house public meeting on Tuesday, October 16th, from 4 pm to 6 pm in City Council Chambers (6635 Maplewood Avenue).  Representatives from the City of Sylvania, Ohio Department of Transportation (ODOT),  and consultant team will be available to provide information, answer questions, and discuss the project.

Sylvania Interchange Public Meeting Documents

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