Home > FAQs > What flood standard is being used to determine the height of the shaft pads compared to what DWR has analyzed in the fourth climate change assessment for storm surge and downstream flood risk?
Are the maintenance and retrieval shafts being kept or filled after construction of the project?
June 12, 2020
The ITR report sought to determine if CEQA could have an approach for the unknowns. How can that comment be assimilated? The Big Bertha TBM used on the Alaska Way Viaduct got stuck 1,000 feet into the tunnel drive. How is that type of possibility going to be addressed from the engineering point of view?
June 12, 2020