Silicon Valley Clean Water Selects Name for the Tunneling Machine to Further Their $495 million Infrastructure Program
Aug 09, 2019
Silicon Valley Clean Water (SVCW) announced the selection of a name for their large tunneling machine that will support the agency’s $495 million infrastructure program. The program includes rehabilitating 3.3 miles of the agency’s raw wastewater conveyance piping system, involving installation of a new gravity pipeline.
Other projects in the program include three new or rehabilitated pump stations, and a new preliminary treatment facility at the wastewater treatment plant. The tunneling machine, called “Salus”, after the Roman goddess of safety and well-being, will bore 2.4 miles under the Redwood Shores Parkway right-of-way in Redwood City, to make way for a new wastewater conveyance pipeline.
Rick Einsiedl, a 20-year resident of the Redwood Shores neighborhood in Redwood City, proposed the winning name following a naming contest launched by SVCW, which provides wastewater service to more than 220,000 residents and businesses serving Belmont, San Carlos, Redwood City and the West Bay Sanitary District. A three-member judge panel selected the name for the Tunnel Boring Machine (TBM) from 34 entries.
“In a mining tradition that dates back centuries, it is considered good luck to give tunneling machines a name before they start work,” said Teresa Herrera, manager of SVCW. “SVCW appreciates the community’s enthusiasm and creativity during the naming contest. We look forward to welcoming Salus to Redwood City in July and for the tunneling work to commence.”
In Einsiedl’s contest submission, he wrote “Salus (Latin: salus, ‘safety,’ ‘salvation,’ ‘welfare’) was a Roman goddess. She was the goddess of safety and well-being (welfare, health and prosperity) of both the individual and the state. As a local project that befits the people this name seems fitting for the purpose, as well as a nod to the Romans who are credited with inventing modern plumbing and sanitary management.”
Built by Herrenknecht Tunneling Systems of Schwanau, the $18.2 million TBM will be arriving from Germany in July and is an alternative to more disruptive construction options. Sixteen feet in diameter and 650 feet long with all the support elements, it will arrive disassembled and the components will be reassembled underground before beginning two years of work constructing the wastewater conveyance pipeline.
The TBM not only bores out the tunnel as it advances, the high-precision equipment also installs precast concrete segments to support the tunnel in which the pipeline will be installed. The technology, used all over the world for mountain and underwater tunnels, pipelines and transit lines, was used to build San Francisco’s Central subway.
Salus will first construct a one-mile segment of tunnel to connect the new gravity pipeline with a new force main installed on Inner Bair Island. Then the TBM will install a second section of tunnel starting from a launching shaft located north of the San Carlos airport, and extending the tunnel to SVCW’s treatment plant.
About Silicon Valley Clean Water
Silicon Valley Clean Water’s mission protects public health and the environment by providing wastewater conveyance and treatment for reuse or disposal in a safe, responsible, efficient, and reliable manner. SVCW serves more than 220,000 people and businesses in our service area supporting the cities of Belmont, San Carlos, Redwood City and the West Bay Sanitary District and has a strong commitment to customer service, fiscal responsibility, transparency, and regional partnerships.
About the Regional Environmental Sewer Conveyance Upgrade (RESCU) Program
The Regional Environmental Sewer Conveyance Upgrade (RESCU) Program will support the safety and reliability of the community’s wastewater system and protect the San Francisco Bay through rehabilitating, re-purposing, and constructing new facilities. This infrastructure investment will replace the 1960’s system to enhance the future of the Peninsula’s wastewater system and increase wastewater flows of up to 108 million gallons per day (MGD).
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