1 THANK YOU FOR ATTENDING. 2 DIAMOND SPONSOR: 3 EMERALD SPONSOR:
Welcome - Thank You for Attending · 8/31/2018 · Welcome - Thank You for Attending. I-495...
Transcript of Welcome - Thank You for Attending · 8/31/2018 · Welcome - Thank You for Attending. I-495...
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Public Information MeetingAugust 29, 2018
Welcome - Thank You for Attending
I-495 Haverhill Bridge Replacement
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AGENDA
• Introductions• Team & Project Location
• Current Project Schedule• Project Overview• Project Design
• Bridge / Phasing
• Construction Elements• Construction Approach• Work Hours• Mitigation of Impacts
• Communications Program• Contact Information
I-495 Haverhill Bridge Replacement
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INTRODUCTIONS – Project Team
Owner
I-495 Haverhill Bridge Replacement
General Contractor Lead Designer
Specialty SubconsultantsRegina Villa Associates, Inc.
Public Outreach
Green International Affiliates, Inc. Survey, Drainage, Structural Design
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Project Location
Exit 48
Exit 49
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CURRENT PROJECT SCHEDULE
• Stage 1September 2018 – September 2019
• Stage 2September 2019 – August 2020
• Stage 3
August 2020 – September 2021
• Stage 4September 2021 – June 2022
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I-495 Haverhill Bridge Replacement
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PROJECT OVERVIEW - Background
• 57 Year Old Bridges
• 712’ Long Bridges(NB & SB)
• 5 Simply Supported Spans4 Piers per Bridge In River
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PROJECT OVERVIEW – Existing Conditions
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PROJECT OVERVIEW – Existing Conditions
I-495 Haverhill Bridge Replacement
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PROJECT OVERVIEW - Goals
• Complete Bridge Replacement (75 Year Design Life)• Eliminate need for Constant Emergency Repair Work
• Improve Roadway Safety• Full Width Breakdown Lanes
• Dedicated Exit Lane NB Exit 49
• Minimize Impact to Traveling Public During Construction.
• Minimize Environmental Impacts
I-495 Haverhill Bridge Replacement
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PROJECT DESIGN - Bridge
• Design Build Approach• Benefits of DB Team (Engineer, Contractor & Owner)• Update on Current Status of Design & Construction
• Design Considerations• 2 Independent Structures • Similar Span Lengths (712’ vs 718’)• Meet 75 Year Design Standards• Increase Width for Acceleration Lanes• Reduce Spans from 5 to 3 (2 Piers per Bridge)
• Minimize Future Maintenance for Owner• Modify Alignment
• Accommodate Phased Construction
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Trusted Team. Quality Results.
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PROJECT DESIGN - Bridge
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PROJECT DESIGN - Phasing
I-495 Haverhill Bridge Replacement
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PROJECT DESIGN - Phasing
I-495 Haverhill Bridge Replacement
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PROJECT DESIGN - Phasing
I-495 Haverhill Bridge Replacement
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PROJECT DESIGN - Phasing
I-495 Haverhill Bridge Replacement
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CONSTRUCTION
• Construction Approach
• Mitigation of Impacts• Traffic – Real Time Traffic Management Systems
• Work Hours
• Environmental
• Construction Noise
• Staging Areas
I-495 Haverhill Bridge Replacement
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CONSTRUCTION- Construction Approach
• Establish Access• Water & Median
• Bridge Construction Critical Path
• Specialty Subcontractor Support
• Bridge Stats:• 7,000,000 Pounds of Structural Steel• 3,500,000 Pounds of Temporary Steel• 15,000 CY of Concrete• 160,000 CY of Earth Moved• 35,000 Tons of Pavement
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CONSTRUCTION – Real Time Traffic Management
Provide Advanced Notice to Traveling Public of Current Traffic Conditions
• Multiple
Sensors
Boards
Cameras
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CONSTRUCTION – Work Hours
Day Work 5 AM – 5 PM*
Night Work 5 PM – 5 AM *
• Contract Considers Peak Traffic Requirements and Seasonal Increases• 3 Lanes WILL be Maintained Throughout the Project
• I-495 Temporary Lane Closures During Off Peak Hours ONLY
• NO Lane Closures During Holidays
• Night Work Start Times Consider Weekend and Summer Traffic Increases
*Actual Start times will vary based on allowable lane closures and specific activity being performed*
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CONSTRUCTION – Lane Restriction Hours
I-495 Haverhill Bridge Replacement
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CONSTRUCTION – Mitigation of Impacts
Environmental
• In Water Restrictions• Endangered Species
• Wetland Replications• Water Quality Swales
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CONSTRUCTION – Mitigation of Impacts
Construction Noise
• Noise Monitoring Plan• GeoTek – Acoustical Engineering throughout Construction
• Phasing Considerations for Demolition
• Majority of Demolition Performed During Day
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COMMUNICATIONS PROGRAM
Stay In Contact
• Website www.mass.gov/i495haverhillbridge• Notifications• Project Updates• Meetings Information
• Email Advisories (Sign Up Tonight)• Direct Notifications• Traffic & Construction Updates
• Press Outreach
• Social media
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CONTACT INFORMATION
• Dan Fielding, MassDOT Legislative Liaisono 857-368-8959
• Website:o www.mass.gov/i495haverhillbridge
• Email:o [email protected]
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Questions
I-495 Haverhill Bridge Replacement
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Public Information MeetingAugust 29, 2018
THANK YOU FOR ATTENDING
I-495 Haverhill Bridge Replacement