Will the other levees across from the proposed intake sites need to be raised, widened, etc.?June 12, 2020
What is seepage when tunnel segments are put together?June 12, 2020
As described at the January 22, 2020, SEC meeting, the intake construction site would be surrounded by a slurry wall. Slurry walls would serve to isolate the site from surface water and groundwater to minimize the potential for seepage either into or out of the construction site. The construction activities would require minimum dewatering and would not affect short-term or long-term subsidence. Additionally, based upon the geological information available for the intake locations, it appears that there are adequate clay lenses below the excavations to isolate the site from surrounding groundwater.