Tunneling
OSHA weighs safety variance for New Hampshire sewer tunnel project
OSHA is reviewing updated decompression procedures for workers on a New Hampshire sewer tunnel project, reflecting the evolution of safety practices for modern tunnel boring operations.
Louisville tunnel project proposal gains renewed attention after funding debate
Kentucky Venues is renewing efforts to advance a proposed underground tunnel project connecting downtown Louisville to the Kentucky Exposition Center as debate continues over funding for a feasibility study.
Contractor challenges $100-million irrigation tunnel project award in federal lawsuit
A contractor has filed a federal lawsuit challenging the procurement process behind a more than $100-million irrigation tunnel rehabilitation project tied to the Fort Laramie Canal system in Wyoming and Nebraska.
California renews push for Delta tunnel, statewide water infrastructure projects
California is renewing its push for the Delta tunnel and other major water infrastructure projects as debates continue over cost, environmental impacts and long-term water reliability.
Skanska JV lands $1.29 billion Hudson River tunnel contract in N.Y.
A Skanska-led joint venture has secured a $1.29 billion contract to construct twin rail tunnels beneath the Hudson River, including boring, lining and underground stabilization work.
Court ruling blocks financing path for California Delta tunnel project
A California court decision has halted the state’s attempt to secure bond financing for the Delta tunnel project, adding uncertainty to the multibillion-dollar water infrastructure plan.
Final Lake Erie sewer tunnel project set to begin after decades-long $3 billion effort
Construction is set to begin on the final tunnel in a multibillion-dollar Northeast Ohio project aimed at reducing sewage overflows into Lake Erie by hundreds of millions of gallons annually.
Ontario Line tunneling begins in Toronto, marking major underground milestone
Tunneling has started on Toronto’s Ontario Line subway project, a 9.7-mile underground transit system that marks a major milestone in large-scale urban infrastructure construction.
Hudson Tunnel project prepares to launch TBM excavation in New Jersey
The Hudson Tunnel project is nearing a major milestone as crews prepare to launch massive TBMs in New Jersey. The next phase will push excavation through the Palisades and under the Hudson River as part of a critical U.S. rail infrastructure build.
Parsons tapped for construction management on NYC’s Newtown Creek CSO tunnel
Parsons has been selected to help deliver New York City’s Newtown Creek CSO tunnel, a major wastewater infrastructure project aimed at reducing sewer overflows and improving water quality. The long-term program underscores continued investment in large-scale urban tunnel systems.
Tunnel fire injures worker at Toledo sewer repair site tied to Arlington sinkhole
A tunnel fire at a sewer repair site tied to the Arlington sinkhole in Toledo, Ohio, injured a worker and temporarily disrupted construction operations as officials investigate the cause.
W.A. Rasic advances San Diego $40 million pipeline with 66-inch main, I-8 tunnel
A $40 million San Diego pipeline project is installing a 66-inch water main and tunneling beneath Interstate 8 to improve system reliability and expand infrastructure capacity.
$225-million Lake Travis water tunnel project nears completion amid drought concerns
A nearly 2-mile water tunnel beneath Lake Travis is nearing completion, marking a key step in a $225 million effort to secure drought-resilient water supply for fast-growing Central Texas communities.
$180 million drainage tunnel anchors $256 million California, Texas water projects
A $180 million drainage tunnel project in California leads $256 million in newly awarded water and wastewater infrastructure work, including flood control and treatment plant expansion.
Elon Musk's Boring Co. names winners for urban tunnel loop projects across U.S.
The Boring Company has selected three U.S. cities for proposed underground Loop tunnel projects as part of its Tunnel Vision Challenge, advancing plans for urban transportation tunnels pending feasibility, regulatory approval and infrastructure analysis.
Hudson Tunnel Project advances as Gateway Program nears tunnel boring phase
Construction on the Hudson Tunnel Project is advancing on both sides of the Hudson River, with key milestones in shaft excavation, utility relocation and tunnel boring machine assembly as the Gateway Program moves closer to full-scale tunneling.
Toronto subway tunnel project passes halfway construction milestone
Construction of the Scarborough Subway Extension in Toronto has passed the halfway mark, with tunneling underway on a 10.7-meter diameter subway tunnel that will become the largest of its kind in Canada.
AECOM JV tapped for 3.25-mile CSO storage tunnel in NYC
AECOM and partners have been selected to oversee construction of New York City’s first combined sewer overflow (CSO) storage tunnel at Newtown Creek, a 3.25-mile project designed to reduce wastewater discharges and improve water quality.
Controlled blasting delivers breakthrough on Amtrak Baltimore utility tunnel
Crews have completed a tunneling breakthrough on a 345-foot utility siphon tunnel in Baltimore, a key enabling project for Amtrak’s B&P Tunnel replacement along the Northeast Corridor.
Gateway Hudson Tunnel construction resumes but funding uncertainty could halt work again
Construction on the Hudson Tunnel Project has restarted across all sites, but officials warn work could stop again within months if federal funding disbursements do not continue.
Massive Lego-like blocks form 11-mile Baltic Sea tunnel between Denmark, Germany
Engineers are assembling an 11-mile immersed tunnel beneath the Baltic Sea using massive prefabricated concrete segments as part of the $8 billion Fehmarnbelt Tunnel project connecting Denmark and Germany.
Musk’s Boring Company picks Tennessee tunnel finalists
Three Tennessee cities are among 16 finalists in Elon Musk’s Boring Company Tunnel Vision Challenge, which will award construction of a mile-long tunnel project as the company advances its Nashville Loop development.
The Woodlands, Texas, makes bid for Musk-backed tunnel project
The Woodlands Township in Texas has approved submission of a proposal to The Boring Company’s Tunnel Vision Challenge that could bring an underground transportation tunnel to Town Center at no cost to the Township.
Nevada lawmakers examine OSHA violations tied to Musk’s Vegas tunnel project
Nevada lawmakers are examining OSHA and environmental safety violations tied to The Boring Company’s Las Vegas tunnel project, raising concerns about regulatory oversight and enforcement delays.
Nashville airport signs deal with The Boring Company for underground transit loop
The Metropolitan Nashville Airport Authority has signed a letter of intent with The Boring Company to explore development of an underground transit loop connecting Nashville International Airport to key city destinations.
Portland advances Bull Run raw water tunnel and pipeline construction
Portland’s Bull Run Filtration Project is advancing with tunnel excavation and more than 6,000 feet of new underground pipeline installed as the city works toward a 2027 regulatory compliance deadline.
Another $77 million released for Gateway tunnel as funding battle continues
The federal government has released another $77 million in previously frozen funding for the $16-billion Gateway Hudson River rail tunnel project, bringing total restored funds to $107 million as legal and political disputes over the critical infrastructure continue.
Amtrak advances construction on key D.C.–New Jersey rail tunnel replacement
Amtrak has awarded major construction contracts for the B&P Tunnel Replacement Program in Baltimore, advancing the two-mile Frederick Douglass Tunnel and modernization of 10 miles of Northeast Corridor rail infrastructure.
Court unlocks funding for Gateway tunnel as first $30 million released
Federal funding has begun flowing again to the $16-billion Gateway Hudson River tunnel project after a court ordered the release of frozen funds, with an initial $30 million payment marking the first step toward restarting construction.
Elon Musk’s ‘Tesla tunnel’ concept eyed for Universal Orlando expansion corridor
Elon Musk’s Boring Company has been selected to advance plans for a proposed underground transit loop connecting Universal Orlando’s existing parks with the upcoming Epic Universe, a project aimed at easing congestion and moving visitors below the region’s busiest tourism corridor.
- Fatal trench collapse in Mass. leads to $4.6 million OSHA penalty, dozens of violations
- OSHA investigates fatal trench collapse at Conroe construction site
- Final Lake Erie sewer tunnel project set to begin after decades-long $3 billion effort
- Texas811 launches real-time excavation detection to prevent utility strikes
- Fiber drilling strike triggers major sewer failure, lawsuits in Florida
- Fatal trench collapse in Mass. leads to $4.6 million OSHA penalty, dozens of violations
- Texas811 launches real-time excavation detection to prevent utility strikes
- Race Communications breaks ground on Bakersfield fiber network
- Final Lake Erie sewer tunnel project set to begin after decades-long $3 billion effort
- Inside Infrastructure: Utility locators warn of systemic failures in damage prevention process