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Home > FAQs > What is the power source for the tunnel cutter head?
Would tunnel segments still be lowered into the tunnel from launch shafts even if there was a maintenance shaft available?
June 12, 2020
The Delta Conveyance program facilities, including tunnel shafts that are currently proposed to remain following construction, would be constructed at elevations greater than the 200-year flood event and projected sea level rise at year 2100 with considerations for freeboard and wind fetch waves.
June 12, 2020
June 12, 2020

As currently proposed, a dedicated high-voltage power supply would be connected to the launch shaft sites to power the tunnel boring machine cutter head.

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