SR 66 and Green River Road Project Transforming a Bottleneck Mark - - PDF document
SR 66 and Green River Road Project Transforming a Bottleneck Mark Eckert, P.E. Michael McCool, P.E. SR 66 and Green River Road Project Project Location: SR 66 (Lloyd Expressway) at Green River Road Eastside of Evansville,
Project Location
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– AADT (2001)
– Projected AADT (2021)
– Major Approaches – Minor Approaches
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– 5 Lanes (2 EB; 3 WB) – Shoulders – Depressed Median
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– 4 Travel Lanes
– Auxilliary Lanes
– Two Distinct Intersections
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– Single Lane
– Adjacent to MSE Walls – Widen Lanes at Green River Road
– Signals at Ramp Termini
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– Unable to Obtain Acceptable LOS without Significant Impacts
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– Relatively New – Advantages – Disadvantages
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– 3 Lanes Each Direction – Shoulders – Barrier Wall in Median – Necessary to Raise Grade – Maximize Use of Existing Pavement
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– No Change to Thru Lanes – Dual Left Turn Lanes to SR 66
– Widen and Lengthen – Maintain Existing Vertical Alignments
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– Keep Signals Visible – Channelization
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– 4R (Partial Reconstruction) – Design Speed : 50 mph – 6 Lanes at 12 ft
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– 3R (Non-Freeway) – Design Speed : 30 mph – 4 Lanes at 12 ft – Left Turn lanes 11 ft
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– Dual Left Turns on Green River Road – Vertical Clearance – Horizontal Clearance
Process
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– Maintain 2 Lanes Each Direction – Coordinate with Adjacent Projects – Phased Construction
maintain on EB
maintain on WB
– Multiple Shifts on Ramps
Detection
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– Schedule of Ramp Closings – Phased Construction
Outside
Medians
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– SE Quadrant
– Lack of Information
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– Existing – Proposed
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– 2,800 ft SR 66 – 1,500 ft Green River Road
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superelevation.
bulb-tee beams