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How much noise will be produced by the shaft boring process?


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June 15, 2020

How much noise will be produced by the shaft boring process?

The shaft construction process would require a large crane or milling machine for the slurry panel excavation or panel excavator if cutter soil mix panels were […]
June 15, 2020

Will acousticians conduct on-the-ground surveys in the actual Delta?

DCA may consider on-site acoustical surveys near potential construction sites to develop site-specific noise reduction methods. These types of surveys would not be conducted until specific […]
June 15, 2020

What is the fish screen noise in decibels?

Specific decibel levels are not known for the screen cleaner mechanism. DCA anticipates further studies and analysis by acousticians.
June 15, 2020

Has a tunneling project with this magnitude, soil condition, length, etc. ever been performed anywhere?

There are many places in the world where tunnels with similar features referenced have been constructed or are under construction, including tunnels at the Port of […]
June 15, 2020

How many launch shaft pads are being proposed?

The potential tunnel alignments and shaft locations in the Central and Eastern Corridor are still being developed. At this time, it appears that two tunnel launch […]
June 15, 2020

How much peat dirt will be displaced in the process of excavating?

Excavated soils, with or without peat, would need to be managed on-site to prevent particulate matter, including dust and peat material, from leaving the construction site […]
June 15, 2020

Is there is a document that compares WaterFix to the new proposed project and highlights the key differences from the administration’s perspective and why those changes are being made?

In July 2017, DWR approved a conveyance project in the Delta involving two tunnels referred to as “California WaterFix.” In his State of the State address […]
June 15, 2020

How will you overcome the challenge of not disrupting reclamation districts’ routine levee maintenance during periods of high flood? How will we mitigate for the required seasonal and annual inspections to ensure reclamation districts are able to keep the community safe?

Reclamation districts (RDs) have important requirements for maintenance, monitoring and flood fighting. These efforts will need to continue during construction and operation of the Delta Conveyance […]
June 12, 2020

Where will water pumped in the dewatering process go?

The dewatering water would be tested to determine if on-site treatment would be required prior to reuse or removal from the site. The treatment could range […]