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ASHE October Technical MeetingERT Project OverviewOctober 8, 2015
Elizabeth River Tunnels Project
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Project Location: Hampton Roads, VA
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3
New, two-lane, WB tunnel
Rehab and life-safety
improvements of existing MTT
Brambleton Ave. / Hampton Blvd.
interchange modifications
Extending MLK to I-264, High St. interchange
Rehab and life-safety
improvements of existing DTT (EB
& WB tubes)
Portsmouth
Norfolk
ERT Project Scope
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ERT Project Schedule
Project_______________ Completion Date
Refurbishment of Existing Downtown Tunnels • August 2016
New MLK Freeway Extension • December 2016
New Midtown Tunnel • December 2016
Refurbishment of Existing Midtown Tunnel • May 2018
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Value to the Hampton Roads Region
Reduces congestion and travel time
Reduces idle time ‐ saving fuel and reducing emissions
Creates seamless connection to I‐264
Extends useful life of existing tunnels
Ends bi‐directional traffic in Midtown Tunnel
Improves reliability and connectivity
Enhanced public transportation services made available through partnership with HRT
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Bank/Bond/TIFIA
Designers
Equity / Sponsors LendersDeveloper
Design-Build Contractor Operations & Maintenance
Owner
Tolling Contractor
3M
ERT Project Team
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Organizational Responsibility
OTP3
VDOT
Central Office
VDOT
Hampton Roads District
Pre- Comprehensive Agreement
Post Comprehensive Agreement
Project Delivery
Development
OPCO
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Immersed Tube Tunnel (ITT) Experience:
- Since 1964, installed 74% of the ITT’s in the USA
- Installed 52,500 feet of ITT in the USA
- 19,700 feet of ITT in the Norfolk Area
The Design-Build Team
Design-Build Joint Venture:
- Skanska USA Civil SE
- Kiewit Infrastructure Company
- Weeks Marine
Design Team:
- Parsons Brinckerhoff
- Volkert & Associates
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ERT Project Funding
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Project Funding
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Financing – Cash Flow
No equity repayment until 2021 at earliest (assuming available funds)
Any revenue shared w VDOT must be used to benefit users of Project
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Construction Overview & Update
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ERT Project Schedule
Project_______________ Completion Date
Refurbishment of Existing Downtown Tunnels • August 2016
New MLK Freeway Extension • December 2016
New Midtown Tunnel • December 2016
Refurbishment of Existing Midtown Tunnel • May 2018
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ERT Project Component 1:
Existing Tunnel Rehabilitation
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Tunnel Rehabilitation Project Scope
Rehabilitation Projects
• Existing WB Downtown Tunnel
• Existing EB Downtown Tunnel
• Existing (EB) Midtown Tunnel
Rehabilitation Activities
• Removal of suspended ceilings
• Replace existing transverse with longitudinal ventilation
• Fire-life safety upgrades to 100 mega watt
• Concrete repairs (spalls and cracks)
• Electrical rehabilitation and upgrades
• Misc. signage, painting and repairs
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DTT Rehabilitation: Ceiling Removal
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DTT Rehabilitation: Barrier Repair
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DTT Rehabilitation: Fire Protection & Ventilation Upgrades
installation of fire protection board installation of longitudinal ventilation system
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DTT-WB Lighting Before … and After
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ERT Project Component 2:
MLK Freeway Extension
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MLK Freeway Extension
London Blvd.London Blvd.
I-264I-264
MLK ExtensionMLK Extension
High St.High St.
London Blvd.
I-264
MLK Extension
High St.
Architectural Rendering
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MLK Extension: Pile Driving
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MLK Extension: Ped Bridge Cap Pour
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MLK Extension: Structural Steel Erection
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MLK Extension: Aerial
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MLK Extension: Aesthetic Treatments
High Street Gateway
Turnpike Road Plaza
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ERT Project Component 3:
New Midtown Tunnel Approaches
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New MTT: Portsmouth Approach
Aerial View
Existing MTT Approach
New MTT Approach
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New MTT: Portsmouth Approach
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Existing MTT Approach
New MTT Approach
New MTT: Norfolk Approach
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New MTT: Norfolk Approach
Surface View
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ERT Project Component 4:
New Midtown Tunnel
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New MTT: Tunnel Element Fabrication
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New MTT: Floating Tubes
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New MTT: Element Tow Down
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New MTT: Element Tow Down
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New MTT: Elements Moored in Portsmouth
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New MTT: Screed Barge
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New MTT: Final Concept• Concrete shell, Immerse Tube Tunnel (ITT)• Westbound tube connecting Norfolk to Portsmouth• Two vehicular lanes and an egress corridor
Jet FansDeluge System
Promat
Utility Corridor
EgressCorridor
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New MTT: Plan & Profile
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New MTT: Offset Alignment
New Midtown Tunnel
Existing Midtown Tunnel
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New MTT: Ballast Concrete Placement
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New MTT: Lay Barge
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New MTT: Elements Docked
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Seals between Elements
- Gina Joint (gasket type)
- Omega Seal (inner connection)
Elements to connect to Cast in Place Approach work
New MTT: Element Seals
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New MTT: Element Placement
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New MTT: Portsmouth Slot
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New MTT: Immersion of Element in Slot
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New MTT: Backfill of Element in Slot
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New MTT: Immersion of the Final Element
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Questions?