The Koki Point study area is located on the southwest shore of Kaua‘i. The area extends north from Hoaka Point to Mahinauli Gulch. The shoreline is composed of basalt rock headlands, sand perched on rocky shoreline, and sand beaches. The area is exposed to swell from the south and southwest during the summer as well as persistent tradewinds.
There are six beaches within the Koki Point area. Between Koki Point and Hoaka Point there are two small beaches. The southern beach (transects 0 – 5) is experiencing erosion with an average shoreline change rate of -1.1 ft/yr. The northern beach (transects 7 – 9) is experiencing slight erosion with an average shoreline change rate of -0.2 ft/yr. North of Koki Point is a small beach (transects 11 – 15) experiencing erosion with an average shoreline change rate of -1.3 ft/yr. The next beach to the north (transects 17 – 31) is divided into two sections. The southern section (transects 17 – 24) is eroding with an average shoreline change rate of -2.7 ft/yr while the northern section (transects 25 – 31) is eroding with an average shoreline change rate of -1.0 ft/yr over the period of study. The sandy beach at Kaluapuhi (transects 32 – 61) is experiencing erosion with an average shoreline change rate of -0.8 ft/yr. Previous studies* did not analyze the Koki Point study area.
*Makai Ocean Engineering and Sea Engineering, 1991 Aerial Photograph Analysis of Coastal Erosion on the Islands of Kauai, Molokai, Lanai, Maui, and Hawaii. State of Hawaii Office of Coastal Zone Management Program.
Last updated: July 2021
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