Tunnel Demand Forecast

A comprehensive overview of many of the largest underground projects taking place across North America.

All rights reserved, including the right to reproduce this list or portions thereof in any form whatsoever. For information, address the publisher.

Tunnel Name Owner Location State Tunnel Use Length Width Bid Year Status
Minneapolis Central City Parallel Tunnel City of Minneapolis, Surface Waters and Sewers Minneapolis MN   4,200 10 - 19 2021 Under Design
Gateway Tunnel Project Amtrak Newark NJ Subway 14,600 24.5 2022 Awaiting Funding
Second Ave. Phase 2 NYC-MTA New York NY Subway 16,000 20 2020 Under Design
Second Ave. Phases 3 - 4 NYC-MTA New York NY Subway 89,600 20 2017-22 Under Study
Kensico-Eastview Connection Tunnel NYC-DEP New York NY Water 10,500 27 2025 Under Study
Flushing Bay CSO Tunnel NYC-DEP New York NY CSO 13,200 20 2026 Under Study
Bay Park Conveyance Project NYC-DEP Naussau Co. NY CSO 18,500 8 2020 RFQ 4th Quarter 2019
Cross Harbor Freight Tunnel NYC Regional Development Authority New York NY Rail 25,000 30 2022 Under Study
Metropolitan Tunnel Program - Northern Tunnel MRWA Boston MA Water 23,760 10 2022 Under Study
Metropolitan Tunnel Program - Southern Tunnel MRWA Boston MA Water 50,160 10 2026 Under Study
Silver Line Extension Boston Transit Authority Boston MA Subway 8,400 22 2020 Under Design
Narragansett Bay CSO Phase III - Pawtucket Tunnel Narragansett Bay Commission Providence RI CSO 13,000 28 2020 Under Design
Narragansett Bay CSO Phase III - Conveyance Tunnel Narragansett Bay Commission Providence RI CSO 8,800 10 2024 Under Design
Amtrak B & P Tunnel Amtrak Baltimore MD Rail 40,000 32 2018 Under Design
Hampton Roads Bridge-Tunnel Project Virginia D.O.T. Hampton Roads VA Highway 7,500 42 2019 Dragados JV Awarded
AlexRenew Long Term Control Plan Tunnel City of Alexendria Alexendria VA CSO 10,500 20 2021 Short List Announced
Potomac River CSO Tunnel DC Water and Sewer Authority Washington DC CSO 4,500 33 2022 Under Design
Superconducting Maglev Project - Northeast Corridor TNEM / BWRR Washington DC Rail 146,520 43 2020 Under Design
Olentangy Relief Sewer Tunnel City of Columbus Columbus OH Sewer 58,000 14 2017 Under Design
Alum Creek Relief Tunnel - Phase 1 City of Columbus Columbus OH Sewer 30,000 18 2018 Under Design
Alum Creek Relief Tunnel - Phase 2 City of Columbus Columbus OH Sewer 21,000 14 2019 Under Design
Enbridge Line 5 Tunnel NEORSD Cleveland OH CSO 23,700 12 2020 Contractor Selected
Shoreline Storage Tunnel NEORSD Cleveland OH CSO 11,700 9.5 2022 Under Design
ALCOSAN Ohio River Tunnel Allegheny Co. Sanitary Authority Pittsburgh PA CSO 10,000 14 2022 Under Design
ALCOSAN Allegheny River Tunnel Allegheny Co. Sanitary Authority Pittsburgh PA CSO 41,700 14 2023 Under Design
ALCOSAN Monongahela River Tunnel Allegheny Co. Sanitary Authority Pittsburgh PA CSO 53,900 14 2024 Under Design
Deer Creek Sanitary Tunnel Metropolitan St. Louis Sewer District St. Louis MO CSO 21,000 19 2016 Bids Under Review
W-6: Highway 90 to SW Military Drive Sewer Main San Antonio Water System San Antonio TX Sewer 28,000 10 2020 Under Design
D2 Subway - Second Light Rail Alignment Dallas Area Rapid Transit Dallas TX Highway 3,000 22 2020 Under Design
I-70 Floyd Hill Highway Tunnel Colorado Dept. of Transportation Denver CO Highway 15,840 60x25 2022 Under Design
Ship Canal Water Quality Project Seattle Public Utilities Seattle WA CSO 14,250 19 2019 Lane/Salini Awarded
West Seattle to Ballard Extension Sound Transit Seattle WA Transit 10,500 18 2022 Under Design
LA Metro Sepulvada Pass Corridor Los Angeles MTA Los Angeles CA High./Trans. 55,500 60 2020 Shortlist Announced
Folsom Area Storm Water Improvement SFPUC San Francisco CA CSO 4,000 12 2022 Under Design
BART Silicon Valley Phase 2 Tunnel Santa Clara Valley Trans Auth. San JOse CA HIghway 26,400 56 2021 Single Tunnel Option Approved
CALTRANS Freeway 710 Tunnel CALTRANS Long Beach CA Highway 26,400 38 2021 Awaiting Funding
California Waterfix Tunnel #1 Delta Conveyance Design and Const. Sacramento CA Water 39,905 28 2020 Under Design
California Waterfix Tunnel #2 Delta Conveyance Design and Const. Sacramento CA Water 403,400 40 2020 Under Design
Newell Creek Dam Tunnel City of Santa Cruz Santa Cruz CA Water 1,500 14 2020 Obayashi Awarded
Highway 401 Rail Tunnel Metrolinx Toronto ON Subway 580 35x28 2017 Shortlisted Teams Announced
Keswick Effluent Outfall Tunnel City of Toronto Toronto ON CSO 11,600 23 2018 Under Design
Scarborough Rapid Transit Extension Toronto Transit Commission Toronto ON Subway 25,000 18 2018 RFQ Due April 15, 2020
Eglinton Crosstown West Extension Toronto Transit Commission Toronto ON Subway 40,000 18 2020 RFQ Due May 29, 2020
Taylor Massey Tunnel City of Toronto Toronto ON CSO 20,000 15 2019 Under Design
Yonge Street Extension Toronto Transit Commission Toronto ON Subway 15,000 18 2022 Under Study
Inner Harbour West Tunnel City of Toronto Toronto ON CSO 18,400 19 2021 Under Design
Green Line LRT Project City of Calgary Calgary AB Transit 26,250 20 2021 RFQ Submitted
Annacis Island Outfall Tunnel City of Vancouver Vancouver BC Water 8,000 10 2018 Project Bid - Awaiting Award
Millennium Line Broadway Extension Metro Vancouver Vancouver BC Subway 18,700 18 2020 Acciona/Ghella JV Awarded
Eagle Mountain Pipeline Project Fortic BC Woodfibre Vancouver BC Oil 29,500 13 2020 Awaiting Funding
Burnaby Mountain Tunnel Kinder Morgan Vancouver BC Oil 8,000 12 2022 Awaiting Funding
Northern Gateway Hoult Tunnel Enbridge Northern Kitimat BC Oil 23,000 20 2022 Awaiting Funding
Ashbridges Bay Outfall Tunnel City of Toronto Toronto ON CSO 33,000 20 2019 Under Design

To have your major tunnel project added to the Tunnel Demand Forecast, or to update information on a listed project, please contact Jonathan Klug at jklug@drklug.com.