Illinois Route 56 (Butterfield Road)
West of Illinois Route 59 to Naperville Road
City of Wheaton and City of Warrenville
Roadway Reconstruction, Additional Lanes, Bicycle Accommodations,
and Utility Adjustments
The project was initiated to address safety, congestion, and
mobility along this highly traveled State route in DuPage County.
The proposed improvement was intended to not only address mobility
issues, but was also required to sustain regional commercial
development and to improve access to existing local retail centers
and residential areas.
The proposed project will provide a safer roadway facility with a
lower accident potential and improved access management. The
existing Average Daily Traffic (ADT) along certain portions of
Illinois Route 56 exceeds 26,000 vehicles per day.
Project Scope and Cost
The proposed improvement will include reconstruction of Illinois
Route 56 (Butterfield Road) from just west of Illinois Route 59 to
Naperville Road from an existing 2 lane highway to a 4 lane divided
highway with a 30 foot grassed barrier median. Major intersections
within the project limits will be improved by adding turning lanes,
increasing queue storage lengths, providing standard taper rates and
modernizing traffic signals to address safety and capacity
deficiencies. In addition, the traffic signals along the corridor
will be interconnected. The structure carrying Illinois Route 56
over the West Branch DuPage River will be removed and reconstructed.
The structure carrying Illinois Route 56 over Ferry Creek will also
be removed and replaced with a double box culvert. Also, a total of
1,081 trees will be planted along the project.
Start Date / Completion Date
Construction would begin in spring 2011 with an anticipated
completion date of November, 2012. The first phase of the
construction staging will concentrate on constructing the two
proposed southern lanes of Illinois Route 56 at which time the
existing northern two lanes will remain open to traffic. After
construction of the southern lanes traffic will shift to the
southern lanes to enable reconstruction of the existing lanes.
Approximately 910 jobs will be retained or created.