SNWA Low Lake Level Pumping Station – Proven Benefits From Early Contractor Involvement
Over the past two decades, the Colorado River Basin has experienced significant drought conditions that…
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First Section of Anacostia River Tunnel Opens, Fulfills Promise of Cleaner Water
Although the rivers and creeks that meander through Washington, D.C., are often noted for their…
UPCOMING PROJECTS: August 2019
CALIFORNIA Moccasin Mountain Tunnel Improvements This project for the San Francisco Public Utilities Commission involves…
DigIndy Plows Ahead: Workhorse TBM and Conveyor System Complete Leg of Vast Indianapolis Network
On April 10, 2019, crews celebrated the breakthrough of a Robbins Main Beam TBM below…
Advances in Tunneling Overcome Challenges in Urban Areas
Tunneling and underground construction in urban areas is increasing throughout the world for various reasons.…
What’s the Deal with GBRs?
As the popularity and use of Geotechnical Baseline Reports (GBRs) on tunnel projects grows, we…
Pavement Surface an Important Consideration in Korea’s Long Tunnels
South Korea has a small land area, but many cars. An aggressive highway-building campaign has…
Controlling Water for Cross Passage Excavation
Cross passage excavation in segmentally lined tunnel construction will continue to challenge our engineering capabilities,…
The Role of Mechanized Shaft Sinking in International Tunneling Projects
Almost all tunneling projects require shafts, either as start and reception shafts for the tunneling…
The Real Deal on Rapid Excavation: It’s About Logistics, Communication & Planning
Tunnel boring machine excavation rates have been a hot button issue in our industry recently…