ASHE October Technical MeetingERT Project OverviewOctober 8, 2015

Elizabeth River Tunnels Project

Project Location: Hampton Roads, VA

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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

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

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

Bank/Bond/TIFIA

Designers

Equity / Sponsors LendersDeveloper

Design-Build Contractor Operations & Maintenance

Owner

Tolling Contractor

3M

ERT Project Team

Organizational Responsibility

OTP3

VDOT

Central Office

VDOT

Hampton Roads District

Pre- Comprehensive Agreement

Post Comprehensive Agreement

Project Delivery

Development

OPCO

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

ERT Project Funding

Project Funding

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

Construction Overview & Update

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

ERT Project Component 1:

Existing Tunnel Rehabilitation

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

DTT Rehabilitation: Ceiling Removal

DTT Rehabilitation: Barrier Repair

DTT Rehabilitation: Fire Protection & Ventilation Upgrades

installation of fire protection board installation of longitudinal ventilation system

DTT-WB Lighting Before … and After

ERT Project Component 2:

MLK Freeway Extension

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

MLK Extension: Pile Driving

MLK Extension: Ped Bridge Cap Pour

MLK Extension: Structural Steel Erection

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MLK Extension: Aerial

MLK Extension: Aesthetic Treatments

High Street Gateway

Turnpike Road Plaza

ERT Project Component 3:

New Midtown Tunnel Approaches

New MTT: Portsmouth Approach

Aerial View

Existing MTT Approach

New MTT Approach

New MTT: Portsmouth Approach

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Existing MTT Approach

New MTT Approach

New MTT: Norfolk Approach

New MTT: Norfolk Approach

Surface View

ERT Project Component 4:

New Midtown Tunnel

New MTT: Tunnel Element Fabrication

New MTT: Floating Tubes

New MTT: Element Tow Down

New MTT: Element Tow Down

New MTT: Elements Moored in Portsmouth

New MTT: Screed Barge

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

New MTT: Plan & Profile

New MTT: Offset Alignment

New Midtown Tunnel

Existing Midtown Tunnel

New MTT: Ballast Concrete Placement

New MTT: Lay Barge

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New MTT: Elements Docked

Seals between Elements

- Gina Joint (gasket type)

- Omega Seal (inner connection)

Elements to connect to Cast in Place Approach work

New MTT: Element Seals

New MTT: Element Placement

New MTT: Portsmouth Slot

New MTT: Immersion of Element in Slot

New MTT: Backfill of Element in Slot

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New MTT: Immersion of the Final Element

Questions?