If heavy concrete is put on top of these soils, how will the sites be stable?
June 12, 2020What 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?
June 12, 2020Decisions about the post-construction design have not been completed. There are many considerations currently being discussed, including not removing the shafts to allow for access into the tunnel and minimize truck traffic to remove the soil used to form the tunnel shaft pad. If the shaft pads were removed, concrete or other structures would be used to cap the shaft at the ground surface.