Engineer: Twin Tunnels project could endanger vital levees
The proposed tunnel path stretches 35 miles from west of Elk Grove to just below Discovery Bay. The tunnels would take water from three intakes along the Sacramento River to existing aqueducts south of Discovery Bay, and then the water will be sent to Southern California. Along the proposed path, there are at least 22 levees that would sit above the tunnels…. The concern is not so much the levees themselves, but the kind of soil that is below the levees.