Attempting to Remove the Pipe Blocking Bertha
The Seattle Tunnel Partners JV is attempting to remove the rest of an 8 inch diameter steel well casing that has been blocking the Bertha tunnel boring machine since December 8, 2013. The upper 55 […]
The Seattle Tunnel Partners JV is attempting to remove the rest of an 8 inch diameter steel well casing that has been blocking the Bertha tunnel boring machine since December 8, 2013. The upper 55 […]
A TBM is stuck on a 2.85m diameter stormwater tunnel in Lancashire, UK. The tunnel is planned to be 3.5-km long, but has been stalled since November when the silt intrusion stopped the tunnel boring […]
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