Metropolitan Water District of Southern California (MWD) – Upper Feeder Gate Replacement Project

ProjectLine provided mechanical, electrical and instrumentation design for rehabilitation and replacement of 10 large, cast ductile-iron slide gates at 3 flow control structures on MWD’s Upper Feeder. Designs included 2 replacement gates and rehabilitation of 8 corroded gates in service since 1965, at facilities originally constructed in 1937. Critical need for reliability led to unique requirements, including plasma-applied zinc- metallizing coatings, solid stainless steel gate stems up to 82 ft long designed for actuator stall torque, and Limitorque SMB-2 and SMB-3 replacement actuators with remote control capability. Designs provided for installation within a single 4-day shutdown window for MWD’s critical Upper Feeder. ProjectLine is a subconsultant to Black & Veatch for the project.