Silicon Valley, California
This Airport access shaft project is 1 of 3 for the Silicon Valley Clean Water’s RESCU program (Regional Environmental Sewer Conveyance Upgrade). The project is the first tunneling progressive design-build of this nature in the US. Malcolm has been brought on as a specialist contractor in constructing the walls for the TBM launch shaft. The job will allow 3 times more water flow than the original 45 year old pipeline. The tunnel is 3.3 miles in length, which is the equivalent to almost 59 football fields.