welcome - thank you for attending · 8/31/2018 · welcome - thank you for attending. i-495...
TRANSCRIPT
Public Information MeetingAugust 29, 2018
Welcome - Thank You for Attending
I-495 Haverhill Bridge Replacement
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
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
Project Location
Exit 48
Exit 49
CURRENT PROJECT SCHEDULE
• Stage 1September 2018 – September 2019
• Stage 2September 2019 – August 2020
• Stage 3
August 2020 – September 2021
• Stage 4September 2021 – June 2022
I-495 Haverhill Bridge Replacement
PROJECT OVERVIEW - Background
• 57 Year Old Bridges
• 712’ Long Bridges(NB & SB)
• 5 Simply Supported Spans4 Piers per Bridge In River
PROJECT OVERVIEW – Existing Conditions
PROJECT OVERVIEW – Existing Conditions
I-495 Haverhill Bridge Replacement
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
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
I-495 Haverhill Bridge Replacement
Trusted Team. Quality Results.
PROJECT DESIGN - Bridge
I-495 Haverhill Bridge Replacement
PROJECT DESIGN - Phasing
I-495 Haverhill Bridge Replacement
PROJECT DESIGN - Phasing
I-495 Haverhill Bridge Replacement
PROJECT DESIGN - Phasing
I-495 Haverhill Bridge Replacement
PROJECT DESIGN - Phasing
I-495 Haverhill Bridge Replacement
CONSTRUCTION
• Construction Approach
• Mitigation of Impacts• Traffic – Real Time Traffic Management Systems
• Work Hours
• Environmental
• Construction Noise
• Staging Areas
I-495 Haverhill Bridge Replacement
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
I-495 Haverhill Bridge Replacement
CONSTRUCTION – Real Time Traffic Management
Provide Advanced Notice to Traveling Public of Current Traffic Conditions
• Multiple
Sensors
Boards
Cameras
I-495 Haverhill Bridge Replacement
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*
I-495 Haverhill Bridge Replacement
CONSTRUCTION – Lane Restriction Hours
I-495 Haverhill Bridge Replacement
CONSTRUCTION – Mitigation of Impacts
Environmental
• In Water Restrictions• Endangered Species
• Wetland Replications• Water Quality Swales
I-495 Haverhill Bridge Replacement
CONSTRUCTION – Mitigation of Impacts
Construction Noise
• Noise Monitoring Plan• GeoTek – Acoustical Engineering throughout Construction
• Phasing Considerations for Demolition
• Majority of Demolition Performed During Day
I-495 Haverhill Bridge Replacement
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
I-495 Haverhill Bridge Replacement
CONTACT INFORMATION
• Dan Fielding, MassDOT Legislative Liaisono 857-368-8959
• Website:o www.mass.gov/i495haverhillbridge
• Email:o [email protected]
I-495 Haverhill Bridge Replacement
Questions
I-495 Haverhill Bridge Replacement
Public Information MeetingAugust 29, 2018
THANK YOU FOR ATTENDING
I-495 Haverhill Bridge Replacement