What is the power source for the tunnel cutter head?
June 12, 2020If heavy concrete is put on top of these soils, how will the sites be stable?
June 12, 2020The 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.