WILLMAR -- The city will save $50,000 and reduce the risk of failure by letting a contractor use a different tunneling method at five locations along the interceptor sewer line. The line is being ...

Just like a recent Construction Toolbox blog highlighted some of the most innovative bridges across the world, tunnel construction in the United States has also been evolving. According to a recent ...

Is Seattle a poor place to tunnel? Conditions are decidedly mixed, but that’s hardly stopped us. Seattle has proven to be a hotbed for innovation and testing of tunneling technology over the last 110 ...

The government will now use the drill and blast method, replacing the tunnel boring machines (TBM) used earlier.