The purpose of the project was to design and construct the navigation channel and landfill elements of Phase I of the Port of Los Angeles 2020 Plan. The project consists of the Concept Design of Pier 400 and as an option of the Preliminary and Final Design of Stage I. Navigation channel and landfill construction will be staged to accommodate the initial need to provide navigation access to the Dry Bulk and container Terminals planned for existing Port land at Pier 300 and subsequently to accommodate navigation access and berthing requirements for facilities to be constructed in the Pier 400 Landfill.
The project includes construction of approximately seven miles of deep draft navigation channels at depths ranging between 45 and 81 feet below MLLW with two turning basins. Channel construction generated approximately 50 million cubic yards of dredged material to be used to create approximately 582 acres of landfill at Pier 400.
Dean Ryan provided engineering support services during the Conceptual Design phase for the Dredge Channel and Landfill Plan and the Containment and Berthing Structures. Specifically, Dean Ryan assisted with the development of design criteria for channel excavation and landfill performance accounting for static, seismic, hydrodynamic, operational and all other factors of design criteria necessary for subsequent design of dredge/landfill stages. Developed three dredging and landfill schemes, each consisting of two stages. The first channel and landfill construction stage included dredging an entrance channel, main channel and turning basin to the Pier 300 Dry Bulk Facility of -63 feet MLLW, a northern channel to Pier 300 Container Facility with a minimum depth of -45 MLLW.
Conceptual Design support services were also provided by Dean Ryan for the Containment and Berthing Structures.