Olivia
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TunnelBuilder | Global Tunnelling News + Tenders
@tunnelbuilder
Global tunnelling news, projects & tenders.
Tracking TBMs, contracts and underground works worldwide.
Cardiff, Wales
Joined October 2010
1.1K Following
2.2K Followers
1.6K Posts
Global tunnelling news, projects & tenders.
• Project pipelines worldwide
• TBM deployments & milestones
• Tenders, bids & contract awards
Independent, fact-based updates.
SRL East construction is powering ahead with over 3,000 workers, and when complete will connect universities and communities while inspiring the next generation of engineers.
SRL inspires future tunnelling talent as students tour the Suburban Rail Loop site in Heatherton and learn about the giant TBMs set to start tunnelling this year.
Thread ↓
Melbourne primary school students visited the eastern tunnel entrance, asked project experts questions and were named future ‘TBM Captains’ as part of a long-term initiative.
Who to follow
Tunnel Business Mag
@TBMag
TBM: Tunnel Business Magazine is the leading publication covering the North American tunneling industry.
Akkerman
@AkkermanInc
@AkkermanInc manufactures #GuidedBoring, #Microtunneling, #PipeJacking, #Sliplining & #Tunneling systems for pipe installations of all kinds.
Tunnelling Journal
@tunnel_journal
Bringing you the latest tunnelling news, Tunnelling Journal is the leading publication for the tunnelling and underground construction industry.
The first 78-tonne TBM cutterhead has arrived in Melbourne and will dig twin tunnels between Cheltenham & Glen Waverley and from Glen Waverley to Box Hill.
Herrenknecht hosts a tunnel symposium in Oslo, bringing together industry experts to discuss tunnelling technology and future underground projects.
Details: https://t.co/TDulLaZhAH
Award issued for motorway tunnel works on Motorway 5 (DE13) in Germany.
Details: https://t.co/JG95Msf7PA
Award issued for the Barcelona–Vallès commuter railway tunnel works (ES73) in Spain.
Details: https://t.co/peN4xZCDkG
Full outlook details:
https://t.co/H5R43WRQFF
Brenner Base Tunnel construction outlook for 2026 highlights key advances and upcoming work on Europe’s major Alpine rail link.
Thread ↓
The Brenner Base Tunnel spans ~55 km of new tube and forms a core part of the TEN-T freight/passenger corridor between Italy and Austria.
2026 focus:
• Continued TBM progress on main tubes
• Expansion of mechanical & safety systems
• Preparations for commissioning phases
2025–26 overview:
• TBM drives advancing on key drives
• Structural works progressing in major sections
• Systems installations set to increase
Joseph Gallagher achieves second microtunnel breakthrough on the SIBS project in Bahrain, advancing underground infrastructure delivery on the scheme.
Details: https://t.co/o3cUMycVU9
Full details:
https://t.co/NoEJQPsUFX
Milestone reached on Southern California High-Speed Rail with the release of the draft EIR/EIS for the Los Angeles–Anaheim section.
Thread ↓
Why this matters:
Releasing the draft EIR/EIS moves the project closer to approvals needed for construction and long-term delivery of high-speed rail in the region.
The LA–Anaheim section is one of the busiest travel corridors in Southern California and a critical link in the planned high-speed rail network.
Project update:
• Draft Environmental Impact Report / Environmental Impact Statement released
• Covers the Los Angeles–Anaheim corridor
• Key step in the federal and state review process
Tender issued for road works on ES208 in Spain, covering infrastructure elements including relevant tunnel sections.
Details: https://t.co/NTHnsrjQab
Tender issued for road and highway works on NL39 in the Netherlands, including tunnel infrastructure elements under the project scope.
Details: https://t.co/fOdwdKHNaU
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