Rising Costs and Delays in Seattle Area Wastewater Plant and Tunnels

The proposed tunnel to replace the seismically deficient Alaskan Way Viaduct in Downtown Seattle is no stranger to controversy. This article highlights recent discussions regarding the cost of the project. Washington Governor Chris Gregoire declared […]

An article in TBM magazine provides a nice overview of cellular concrete technology. I never knew this (although it makes sense) but the material was used primarily as a lightweight floor leveling product for high-rise […]

The notorious landslide-prone stretch of California Highway 1 at Devil’s slide has only about one more year until traffic bypasses it completely thanks to the twin bore tunnels that have just completed excavation. They still […]