Rising Costs and Delays in Seattle Area Wastewater Plant and Tunnels

February 25, 2008 rockman Project Related Comments Off on Rising Costs and Delays in Seattle Area Wastewater Plant and Tunnels

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Repairs to the old Devil's Slide landslide area on CA Highway 1, soon to be abandoned when the tunnel bypass opens.
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Devil’s Slide excavation completed for both tunnels

February 10, 2011 rockman Project Related Comments Off on Devil’s Slide excavation completed for both tunnels

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 […]

Conceptual drawing of Bertha rescue shaft
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Viaduct Inspections Show Settlement Problems Long Before Tunneling

February 19, 2015 rockman Project Related Comments Off on Viaduct Inspections Show Settlement Problems Long Before Tunneling

The Alaskan Way Viaduct tunneling project was in the news late last year when settlement of the Viaduct was reported during the dewatering efforts for the Bertha TBM rescue shaft. A recent post by WSDOT […]

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Pile Foundations for Huge Ferris Wheel on Seattle Waterfront

February 27, 2012 rockman Project Related Comments Off on Pile Foundations for Huge Ferris Wheel on Seattle Waterfront

Seattle’s Pier 57 will soon be home to a 175-foot tall Ferris wheel with 41 air-conditioned gondolas. The foundations for this soon-to-be-landmark consist of 150-ft long, 30-36" steel pipe piles driven through glacial till. The […]