Jetty Modification Study for Kalaeloa Barbers Point Harbor, Hawaii

A series of laboratory experiments were conducted for a range of model ships, irregular waves, wave-induced longshore currents, and jetty lengths to optimize the length of a proposed entrance channel jetty at Kalaeloa Barbers Point Harbor, Hawaii. Eleven jetty configurations were studied on both sides of the entrance channel, with lengths varying from no jetty to incremental lengths up to 137 m (450 ft). Wave-induced ship motions were obtained for 392 inbound and outbound transits with 1:75 scale models of a C9-Class containership, a bulk-cargo carrier, and an ocean-going barge. In this paper, only the containership results are presented. A 114 m jetty (375 ft) on the north side of the channel and the 61 cm (2 ft) depth transition location inside the harbor were recommended.