A TBM named Rachel continues to build a 5.49 m (18-foot) internal diameter tunnel for the Joint Water Pollution Control Plant (JWPCP) in Carson towards Royal Palms Beach in San Pedro.
Over 600 m (2,000 feet) of tunnel has been constructed so far and Rachel is currently about 21.34 m (70 feet) deep below ground and less than 800 m (0.5 mile) from Harbor Regional Park. Earlier this year, Rachel stopped temporarily to allow a specialized crew entering a pressurized chamber behind the cutting head to examine the cutting discs at the front of the TBM. Once the maintenance work was completed, Rachel resumed tunnelling. The TBM will take approximately 3.5 years to build the new 11.27 km (7-mile) tunnel. Click here and us/98 for more detailed information in the tunnelbuilder archive. Visit https://www.clearwater.lacsd.org/. 16/22.
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