Connecticut Department of Transportation State Project No. 167-108 State Project No. 167-108 Public Information Meeting Public Information Meeting Route 15 Wilbur Cross Parkway Route 15 Wilbur Cross Parkway Through West Rock Ridge Through West Rock Ridge Town of Woodbridge, Town of Hamden Town of Woodbridge, Town of Hamden & City of New Haven & City of New Haven June 7, 2017, 7:00 PM New Haven Hall of Records 200 Orange Street, New Haven, CT
Connecticut Department of Transportation Project Roles Project Roles CTDOT Division of Bridges, Bridge Consultant Design Unit CTDOT Division of Bridges, Bridge Consultant Design Unit Oversight/Liaison/Coordination of Design Consultant Oversight/Liaison/Coordination of Design Consultant � � - Theodore Nezames, Manager of Bridges - Theodore Nezames, Manager of Bridges - Timothy Fields, Principal Engineer - Timothy Fields, Principal Engineer - David Cutler, Supervising Engineer - David Cutler, Supervising Engineer - Derick Lessard, Project Engineer - Derick Lessard, Project Engineer CTDOT Office of Environmental Planning CTDOT Office of Environmental Planning Coordination/Review of Environmental Aspects Coordination/Review of Environmental Aspects � � - Kevin Fleming, Planner - Kevin Fleming, Planner - Amanda Saul, Planner - Amanda Saul, Planner - Chris Samorajczyk, Planner - Chris Samorajczyk, Planner - Scott Speal, NRS Archaeologist - Scott Speal, NRS Archaeologist
Connecticut Department of Transportation Project Roles Project Roles CTDOT Interchange 59 Project Team CTDOT Interchange 59 Project Team Independent utilities and stand-alone projects Independent utilities and stand-alone projects � � Continual coordination Continual coordination � � Project No. 92-672 Project No. 92-672 � � - Scott Bushee, Supervising Engineer - Scott Bushee, Supervising Engineer Long-term Improvements Long-term Improvements � � - Marissa Washburn, Supervising Engineer - Marissa Washburn, Supervising Engineer
Connecticut Department of Transportation Project Roles Project Roles Federal Highway Administration (FHWA) Federal Highway Administration (FHWA) Federal Funding Anticipated Federal Funding Anticipated � � Review of Environmental Assessment and Design Plans Review of Environmental Assessment and Design Plans � � - Timothy Snyder, Area Engineer - Timothy Snyder, Area Engineer - Christopher Hansen, Environmental Protection Specialist - Christopher Hansen, Environmental Protection Specialist CDM Smith CDM Smith Retained as Design Consultant Engineer Retained as Design Consultant Engineer � � Tunnel inspection and preliminary engineering report Tunnel inspection and preliminary engineering report � � - Mike Egan, Principal, Project Manager - Mike Egan, Principal, Project Manager - Dave Sousa, Public Engagement - Dave Sousa, Public Engagement - Mohammad Jafari, Tunnel Designer - Mohammad Jafari, Tunnel Designer
Connecticut Department of Transportation Exit 59 Location Map Location Map
Connecticut Department of Transportation Aerial View Aerial View
Connecticut Department of Transportation Purpose of Project Purpose of Project Tunnel Inspected Once per Year (Biennial and Tunnel Inspected Once per Year (Biennial and � � Special Inspections) Special Inspections) Most current inspection has given the Tunnel an Most current inspection has given the Tunnel an � � overall rating of “Poor” overall rating of “Poor” “Poor” rating is not an indication of an imminent “Poor” rating is not an indication of an imminent � � safety issue safety issue Project scope to address safety, structural, and Project scope to address safety, structural, and � � geometric deficiencies. geometric deficiencies.
Connecticut Department of Transportation Tunnel Description Tunnel Description Opened in 1949 - Wilbur Cross Parkway Opened in 1949 - Wilbur Cross Parkway � � Eligible for Listing on State/National Historic Register Eligible for Listing on State/National Historic Register � � Only Highway Tunnel Through Natural Land Form in CT Only Highway Tunnel Through Natural Land Form in CT � � - Carries 70,000 vehicles per day - Carries 70,000 vehicles per day Each Barrel 1,200’ long, 28’ wide, 11’ Lanes, 6” Each Barrel 1,200’ long, 28’ wide, 11’ Lanes, 6” � � shoulders shoulders - Standards Require 12’ Lanes, 8’ left and 10’ right shoulder - Standards Require 12’ Lanes, 8’ left and 10’ right shoulder Non-Compliance w/Tunnel Standards/Requirements Non-Compliance w/Tunnel Standards/Requirements � � - Geometrics, Ventilation and Emergency Systems - Geometrics, Ventilation and Emergency Systems CDM Smith 2009 Inspection: Need for Rehabilitation CDM Smith 2009 Inspection: Need for Rehabilitation � �
Connecticut Department of Transportation Existing Conditions Existing Conditions Significant Deterioration Significant Deterioration � � - Prior Biennial Reports - Prior Biennial Reports - CDM Smith Inspection/Study - CDM Smith Inspection/Study Peak Hour Congestion Peak Hour Congestion � � - Recurring Bottlenecks - Recurring Bottlenecks Substandard Shoulder Widths Substandard Shoulder Widths � � create emergency response create emergency response constraints constraints Does not meet current standards Does not meet current standards � � for electrical, mechanical or fire for electrical, mechanical or fire protection systems protection systems
Connecticut Department of Transportation Tunnels Tunnels Ground Water Infiltration Ground Water Infiltration � � - Walls/Ceiling - Stalagmites - Walls/Ceiling - Stalagmites - Freeze/Thaw Conditions - Freeze/Thaw Conditions - Falling Icicles - Falling Icicles Cross Section Deficient Cross Section Deficient � � - 28’ Existing Width - 28’ Existing Width - 50’ Required (2 Lanes) - 50’ Required (2 Lanes) � (includes two 4’ curbs) � (includes two 4’ curbs) Frequent Maintenance Frequent Maintenance � � Requires Tunnel Closures – Requires Tunnel Closures – Shifting Traffic Shifting Traffic
Connecticut Department of Transportation Tunnel Walls
Connecticut Department of Transportation Tunnel Wall Tunnel Wall
Connecticut Department of Transportation Tunnel Wall Tunnel Wall
Connecticut Department of Transportation Tunnel Wall
Connecticut Department of Transportation Tunnel Ceiling Tunnel Ceiling
Connecticut Department of Transportation Tunnel Ceilings
Connecticut Department of Transportation Tunnel Ceiling Tunnel Ceiling
Connecticut Department of Transportation Typical Cross Section at Steel Framing Typical Cross Section at Steel Framing
Connecticut Department of Transportation Steel Framing (before concrete) Steel Framing (before concrete)
Connecticut Department of Transportation Rehabilitation Report Summary Rehabilitation Report Summary November 2014 Alternative November 2014 Alternative � � Construction Options Study and Construction Options Study and September 2016 Supplement September 2016 Supplement � Several Options Evaluated: � Several Options Evaluated: � Construction Methods � Construction Methods � Construction Duration � Construction Duration � Construction Schedule � Construction Schedule (Staging) (Staging) � Cost � Cost � Traffic Impacts � Traffic Impacts � Construction Complexity � Construction Complexity � Anticipated Useful Life � Anticipated Useful Life
Connecticut Department of Transportation Rehabilitation Options Rehabilitation Options Rehabilitation Options Evaluated in 2014 Report: Rehabilitation Options Evaluated in 2014 Report: � � � Rehabilitation of Existing Tunnel by Complete � Rehabilitation of Existing Tunnel by Complete shutdown of one barrel. shutdown of one barrel. � Rehabilitation of Existing Tunnel by Partial shutdown � Rehabilitation of Existing Tunnel by Partial shutdown of one barrel. of one barrel. Significant Traffic Impacts During Significant Traffic Impacts During � � Lane Closures Lane Closures Geometrics Not Correctable Within Geometrics Not Correctable Within � � Existing Tunnel Widths Existing Tunnel Widths Structural Integrity of Tunnels Structural Integrity of Tunnels � � Ground Water Infiltration Ground Water Infiltration � �
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