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

Nov 27, 2022 •482 likes •811 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

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 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
ERT Project Component 1: Existing Tunnel Rehabilitation
DTT Rehabilitation: Ceiling Removal
DTT Rehabilitation: Barrier Repair
DTT Rehabilitation: Fire Protection & Ventilation Upgrades I nstallation of fire protection board I nstallation of longitudinal ventilation system
… and After DTT-WB Lighting Before
ERT Project Component 2: MLK Freeway Extension
MLK Freeway Extension I-264 MLK Extension High St. London Blvd. Architectural Rendering
MLK Extension: Pile Driving
MLK Extension: Ped Bridge Cap Pour
MLK Extension: Structural Steel Erection
MLK Extension: Structural Steel Erection
ERT Project Component 3: New MTT Approaches
New MTT: Portsmouth Approach Existing MTT Approach New MTT Approach Aerial View
New MTT: Portsmouth Approach Surface View
New MTT: Norfolk Approach New MTT Approach Existing MTT Approach Aerial View
New MTT: Norfolk Approach Surface View
ERT Project Component 4: New Midtown Tunnel
New MTT: Final Concept • Concrete shell, Immerse Tube Tunnel (ITT) • Westbound tube connecting Norfolk to Portsmouth • Two vehicular lanes and an egress corridor Utility Corridor Deluge System Jet Fans Egress Promat Corridor
New MTT: Plan & Profile
New MTT: Tunnel Element Fabrication (1 min. time lapse video)
New MTT: Float Out of Litter 1 (1 min. time lapse video)
New MTT: Element Tow Down
New MTT: Elements Moored in Portsmouth
New MTT: Screed Barge
New MTT: Lay Barge
New MTT: Portsmouth Slot
New MTT: Immersion of Element in Slot
New MTT: Immersion of Element in River
New MTT – Elements 1-3 Walk Through
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