Marine Construction Planning, Analysis and Supervision
Buoys Environmental Modeling Vehicles Corrosion Laboratory
Pipeline Deployments

Makai has designed a variety of deep water (2,000′ and greater) ocean pipelines ranging from 12" diameter to 48" diameter. For each of these pipelines, Makai has developed the deployment methodology and plan as an integral part of the design. For four of these pipeline projects, Makai has provided on-site deployment engineering support and guidance to the contractor.

Mini-OTEC Mooring

Makai designed, wrote the deployment plan, and provided engineering assistance for the installation of this unique mooring in 3,000′ of water. The mooring for the OTEC barge was the 24" cold water pipeline, attached to a large gravity anchor on a 23 degree slope.

OTEC Cold Water Pipe Construction Demonstration

Makai designed, wrote the deployment plan and assisted in the training of Hawaiian Dredging and Construction personnel for this NOAA/DOE sponsored project. The deployment demonstrated the ability to install large diameter (8′) pipelines on steep, rough terrain without divers. Makai personnel served as project engineers, technicians and advisor’s during the deployment at Keahole Point.

Moorings and Pipe Deployment

Makai designed and wrote the at-sea operation plan for installation of a two-point mooring in 1,300′ of water for an 8′ x 400′ long suspended test pipeline for Hawaiian Dredging and Construction. In addition, Makai developed the deployment plan for the installation and recovery of this large pipe.

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