The Delta Conveyance Design and Construction Authority has completed the Engineering Product Reports for the Central and Eastern Corridor Options for the Delta tunnel, according to the February 2021 Board report. Deliverables included “engineering drawings, GIS mapbooks, and all associated technical memoranda (TMs).”  The DCA has also delivered draft documentation to DWR on the Bethany … Continue reading Delta Tunnel: DCA submits Final Central and Eastern Corridor Conceptual Designs to DWR