Elizabeth River Tunnels Project Construction Update HRTPO Board - - PowerPoint PPT Presentation

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Elizabeth River Tunnels Project Construction Update HRTPO Board - - PowerPoint PPT Presentation

Nov 27, 2022 482 likes •812 views

Agenda Item 10 Elizabeth River Tunnels Project Construction Update HRTPO Board Presentation Daniel A. Norman, PE Assistant Construction Director Thursday, 19 March 15 ERT Project Schedule Construction Approximately 70% Complete

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HRTPO Board Presentation

Daniel A. Norman, PE Assistant Construction Director Thursday, 19 March 15

Elizabeth River Tunnels Project Construction Update

Agenda Item 10

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ERT Project Schedule

Segment_______________ 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

Construction Approximately 70% Complete

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ERT Project Component 1:

Existing Tunnel Rehabilitation

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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

I nstallation of fire protection board I nstallation 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. 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: Structural Steel Erection

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ERT Project Component 3:

New MTT 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

Surface View

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New MTT: Norfolk Approach

Aerial View

Existing MTT Approach New MTT 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: Final Concept

  • Concrete shell, Immerse Tube Tunnel (ITT)
  • Westbound tube connecting Norfolk to Portsmouth
  • Two vehicular lanes and an egress corridor

Jet Fans Deluge System Promat Utility Corridor Egress Corridor

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New MTT: Plan & Profile

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New MTT: Tunnel Element Fabrication

(1 min. time lapse video)

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New MTT: Float Out of Litter 1

(1 min. time lapse video)

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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: Lay Barge

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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: Immersion of Element in River

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New MTT – Elements 1-3 Walk Through

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Questions?