Tunneling
Enbridge agrees to reapply for key permit, stalling Line 5 tunnel project
The Army Corps of Engineers has extended its environmental review, pushing the project’s potential start date to 2026. Enbridge must now apply for a new water resources permit incorporating updated wetland data before moving forward.
Remembering Bob Affholder: A legacy of passion and innovation in the CIPP, tunneling industries
(UI) — Robert (Bob) Wilson Affholder, a true industry giant by any measure or perspective, passed away in late July after a brilliant career that amazed, impressed and established his footprint upon essence of both cured-in-place pipe rehabilitation and the tunneling industry.
Lynchburg, Va., begins work on $400 million Blackwater CSO tunnel to protect waterways
Construction has started on the Blackwater CSO Tunnel, the largest capital improvement project in Lynchburg's history. The nearly mile-long, 12-foot diameter tunnel will be built 70 to 120 feet below Blackwater Creek.
Parsons to oversee Manchester, N.H., $16 million Cemetery Brook Drain tunnel project
The $16 million contract, spanning three years, includes program and construction management services aimed at mitigating flood risks and eliminating combined sewer overflow (CSO) discharges into the Merrimack River.
British Columbia selects design team for new eight-lane Massey tunnel
The next stage of design for the toll-free, eight-lane tunnel replacing the George Massey Tunnel is set to move forward, with the Fraser River Tunnel Project selecting Cross Fraser Partnership as the preferred team to lead the design.
GDC awards first tunnel boring contract for NY-NJ project for $465 million
The Palisades Tunnel Project will construct the first mile of 5,100-foot twin tunnels on the New Jersey side, including boring, lining with waterproof concrete, and creating the Hudson County Shaft for Tunnel Boring Machine removal.
Stantec manages $104 million Blackwater sewer overflow tunnel in Lynchburg, Va.
The $104 million Blackwater CSO tunnel will have a diameter of 12 feet and will be located 70 to 120 feet below ground, providing about 4.7 million gallons of storage capacity.
GDC secures $16 billion for Hudson Tunnel project, set to create 95,000 jobs
The Gateway Development Commission has finalized the funding needed for the Hudson Tunnel Project, securing a total of $16 billion. The HTP, a major underground infrastructure project, will replace and expand the aging rail tunnel beneath the Hudson River.
Elon Musk’s Boring Company faces new tunneling violation in Austin
The complaint, lodged by Bastrop resident Chap Ambrose, alleges that The Boring Company initiated tunneling at the Gigafactory in Austin without the necessary permits.
Virginia town set to begin $104 million CSO tunnel project
The Blackwater CSO Tunnel will be a nearly mile-long, 12-foot-diameter underground tunnel located 70 to 120 feet beneath Blackwater Creek. It is designed to collect and store up to 4.7 million gallons of combined sewage and stormwater during heavy rains, preventing wastewater from overflowing into local waterways.
Bechtel to oversee tunnel construction in $12.7 billion BART Silicon Valley extension
The Santa Clara Valley Transportation Authority has awarded Bechtel Infrastructure Corporation a contract to manage construction of the Bay Area Rapid Transit’s (BART) Silicon Valley Phase II extension.
Construction begins on new water pipeline project in Kyle, Texas
At over 20 miles in length, Segment C marks the final segment of the Alliance Water transmission system to begin construction and is anticipated to be completed in Fall 2025.
EarthGrid successfully field tests tunnel boring robot, launches two-torch plasma excavation system
With a more powerful and efficient tunneling system on the horizon for the EarthGrid team, this technology will create underground pathways to connect transmission and fiber cabling from providers to homes, data centers and businesses, delivering reliable and resilient energy and internet access nationwide.
Boring machine 'Chessie' resumes drilling at Chesapeake Bay Bridge-Tunnel site after anchor incident
After months of investigation and repairs, the tunnel boring machine, affectionately known as Chessie, has resumed tunneling operations after striking a buried anchor nearly 10 months ago.
Hudson Tunnel Project set to generate 95,000 jobs during construction phase, report says
According to a recent study by the Regional Plan Association (RPA), the Hudson Tunnel Project, valued at $16.04 billion, is expected to generate 95,000 jobs during its construction phase, surpassing previous projections by a significant margin.
San Diego begins installation of new pure water pipeline at Miramar Reservoir
Completion of the 1-mile branched pipeline along the Miramar Reservoir bed includes pipeline assembly on shore before the pipe is loaded onto barges and permanently installed underwater. Over 1,100 feet of tunneling to reach the reservoir was completed earlier this year, and work is now underway to complete construction of the pipeline at the reservoir.
Second tunnel-boring machine breaks through at future Oak-VGH Station in Canada
(UI) — The second tunnel-boring machine has broken through at the future Oak-VGH Station, signaling a new milestone for the Broadway Subway Project.
Groundbreaking advances made with EPBM tunnel constructed below sea level
(UI) — Houston Public Works launched the Surface Water Transmission Program (SWTP) to comply with an HGSD mandate. The 66-inch, 50-year-old pre-stressed concrete cylinder pipe (PCCP) is the primary source for the western part of the city, and its shutdown would impact the system's capacity.
Granite wins $215 million contract to improve Ohio sewer infrastructure
Granite has been awarded an approximately $215 million contract by the city of Akron, Ohio to construct the Northside Interceptor Tunnel Project (NSIT) to aid in preventing combined sewer overflows from entering the Cuyahoga River during typical storms.
Innovative underground lab paves the way for human survival trials on Moon and Mars
(UI) — In order to study how scientific and medical procedures will go in difficult extraterrestrial circumstances, scientists converted deep tunnels 1.1 km beneath the countryside into an underground lab.
City of Newburgh completes first underground tunnel, part of $32 million sewer improvement project
This phase of the project is being completed by a specially designed tunnel boring machine (TBM) capable of “micro tunneling” – an innovative, remote-operated trenchless construction method that allows for simultaneous excavation and pipe laying with minimal disruption to residents.
Underground Work Begins on Las Vegas Convention Center Tunnel
Elon Musk's tunneling company, The Boring Co., has begun underground construction for a tunnel that will house a people-moving system at the Las Vegas Convention Center.
Lane Wins First Washington Contract with $255 Million Seattle Project
(UC) — Lane Construction said it won its first contract in the state of Washington—construction of a water storage tunnel to reduce polluted overflows into Seattle's Lake Washington Ship Canal. (photo: Lane Construction..
Louisville, KY Set to Build $200 Million Sewer Tunnel
In order to protect itself from waterway overflow, the City of Louisville is preparing to build a 20-foot wide underground sewer tunnel, to the tune of $200 million.
Michigan Governor Halts Great Lakes Oil Pipeline Tunnel
Michigan Gov. Gretchen Whitmer has ordered state departments and agencies to take no further action on legislation enacted in late 2018 authorizing construction of an oil pipeline tunnel beneath lakes Huron and Michigan.
UCT 2019: ShowStopper Awards Presented to Stand-Out Exhibits at UCT
UCT 2019: ShowStopper Awards Presented to Stand-Out Exhibits at UCT
Feds Fund Houston-Area Stormwater Tunnel Feasibility Study
The Harris County Flood Control District, whose systems were overwhelmed by Hurricane Harvey in 2017, is set to begin a $400,000 study into the feasibility of constructing large-diameter, deep underground stormwater conveyance tunnels.
Akktoberfest to Honor Akkerman’s 45th Anniversary
Marking 45 years of guided boring, microtunneling, pipe jacking and tunneling equipment and solutions for installing a variety of underground infrastructure, Akkerman is hosting Akktoberfest, Sept. 18-20, at its Brownsdale, Minn, headquarters. In the tradition of Oktoberfest, the largest folk festi..
Lane Construction Wins $580-Million Tunnel Project
Lane Construction Corporation and its parent, Salini Impregilo, received a $580-million contract for the Northeast Boundary Tunnel (NEBT) project in Washington, D.C. This large, deep sewer tunnel will increase the system’s capacity, significantly mitigating the frequency, magnitude and duration of s..
California's Giant Water Tunnels Win First Crucial Approval
SAN FRANCISCO (AP) — U.S. wildlife officials gave crucial first approval Monday to California Gov. Jerry Brown’s decades-old ambitions to build two massive tunnels that would re-engineer the water system in the nation’s most populous state. The National Marine Fisheries Service and U.S. Fish and Wi..
- Emergency rehabilitation brings back Baltimore’s Back River outfall interceptor
- DeLa Express moves forward with 690-mile Permian-to-Louisiana pipeline
- Fatal Shawnee trench collapse linked to Oklahoma contractor’s repeated safety violations, OSHA reports
- CIPP, tunneling pioneer Robert “Bob” Affholder passes
- Editor’s log: The road to rehab intensifies
- CIPP, tunneling pioneer Robert “Bob” Affholder passes
- Wisconsin proposes new PFAS drinking water standards to align with federal rules
- Construction worker dies after being found unconscious in trench box
- Washington Watch: Congress stalls on pipeline safety bill as PHMSA nears key rule decisions
- Tennessee pipeline gets initial FERC approval despite environmental concerns