Jane Addams Memorial Tollway (I-90) Rebuilding and Widening Project

Jason Wenberg, P.E., I-90 Corridor Construction ManagerIllinois Tollway National Open House – August 20, 2013

Jane Addams Memorial Tollway (I-90) I-90 West Corridor Overview Reconstruction and widening of a 54-year-old, 37-mile stretch

of I-90 between Elgin and Rockford Existing four lanes / PCC base / HMA overlay Proposed six-lane composite JPC (11.25”- 13”) 19 crossroad bridges

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I-90 West Corridor Overview Schedule: Eastbound – March 2013 through November 2013 Westbound – September 2013 through November 2014 Crossroad Bridges – August 2013 through November 2015

Budget: $800 million

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I-90 West Corridor Overview Green Initiatives 100 percent reuse/recycle of existing pavement section LED lighting Warm-mix asphalt Soil modification Permeable pavement Bioswales Composite concrete

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I-90 Composite Concrete Composite Concrete Cross Section 8.25”- 10” thick lift of ternary concrete mix (black rock)

15 – 50 percent Fractionated Recycled Asphalt Pavement (FRAP)

3” Illinois Department of Transportation standard PV concrete mix

Placement Two belt placers

Two slip-form pavers Two belt placers

One slip-form paver (approved test section)

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I-90 Composite Concrete Composite concrete vs. single-lift concrete Composite concrete is not practical for all applications

Ramps and interchanges Bridge approach and departures Crossover locations Gaps

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I-90 Composite Concrete Composite concrete vs. single-lift concrete Large areas needed for:

Portable plants FRAP operations

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I-90 Composite Concrete Lessons Learned: Coordination/communication

Concrete delivery Paving equipment (speed, delays, breakdowns)

Consistency Air Slump (2” black rock; 1.75” top lift)

Consolidation Slip-form paver with DBI Timing

Cover ternary mix 15 to 45 minutes

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THANK YOU

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