Longitude 123, Inc. provides a full spectrum of specialized services in support of all phases of the marine energy-related facility life cycle including studies, site characterization/survey, California regulatory permitting support, planning, engineering and design and analysis, and project management of construction, maintenance, inspection, installation, remediation, and decommissioning.
Our turnkey underwater project delivery includes:
- Site Characterization and Surveying
Specification and management of seafloor/riverbed surficial and bathymetric surveys, debris surveys, diver verification surveys, pipeline surveys, pipeline depth of burial surveys, positive location surveys, pipeline span surveys, cathodic protection surveys, historical record searches, asset archive searches, desktop studies, production of maps and figures, and graphics support.
- Planning and Studies
Production of feasibility studies, technical studies, alternatives analysis, risk assessment, cost projections, project execution plans, project work and safety plans, marine safety and anchoring plans, project safety planning, critical operations and curtailment plans, debris management plans, hazmat management plans, waste management plans, oil spill prevention and response plans, Caltrans storm water pollution prevention plans, and CPM scheduling.
- Environmental Permitting
L123 and its environmental sciences partners offer a systematic approach to California environmental permitting that is founded on decades of underwater project permitting beginning in 1992 with the planning and permitting of the first offshore project permitted under CEQA.
- Project Management
L123 employs standard project management processes to direct, plan, schedule, control, communicate and produce successful projects. We serve as the owner’s or contractor’s representative in all project phases advocating for the owner or contractor and their interests in underwater design, environmental permitting, and performance.
Our underwater project environments include:
California, Alaska, Brazil, and Gulf of Mexico
California, Nicaragua, Mexico, Iceland, and Diego Garcia (Indian Ocean)
Northern and Southern California, Arizona, California Sierras, Mississippi River, Great Lakes, San Francisco Bay and California Confluence (Sacramento River, San Joaquin River Delta, Bays and Straits to North Bay San Francisco)
Our underwater inland, coastal, and offshore project experiences include:
Design, permitting, construction, inspection, maintenance, repair, and decommissioning
Design, permitting, construction, inspection, survey, pigging, flushing, repurposing, maintenance, repair and decommissioning
Submarine Power and Communication Cables
Landings, survey, inspection, repair, installation and decommissioning
Subsea Oil Wells
Maintenance, repair, and decommissioning
Project design, inspection, survey, maintenance, and repair
Offshore Oil Platform’s / MODU’s
Installation, survey, inspection, maintenance, repair, and decommissioning
Coastal and Inland Energy
Tanker berth and once-through-cooling system survey, inspection, maintenance, repair and decommissioning
L123 uses a resource-of-opportunity model to assemble specialized project teams consisting of professional engineering services, environmental science services, marine contractors, and suppliers equipped for the unique requirements of each project.
• Energy producers (Oil, Gas and Electric)