The Wahikuli study area (transects 859 – 942) is located between Hanakaʻōʻō Beach Park to the north and Māla Wharf to the south. The northern portion of the area (transects 909 – 942) is dominated by hardened shoreline with sand beaches interspersed. The southern area (transects 859 – 908) is characterized by narrow cobble beaches and hard shoreline. Wahikuli beach (transects 926 – 939) is the only significant sandy pocket beach in the study area. Much of this area has been altered by vertical armoring, small groins and jetties or revetment construction.
As a whole, the area has experienced light to moderate erosion over time with an average rate of -0.5 ft/yr. The northern portion (transect 909 – 942) of the area includes a small section of cobble shoreline, Wahikuli State Wayside Park and Wahikuli beach. This section of shoreline has experienced moderate erosion with an average rate of -0.7 ft/yr. The shoreline at Wahikuli State Wayside Park appears to have been significantly altered. The 1912 shoreline in much of Wahikuli State Park suggests major alterations took place sometime between 1912 and 1949, presumably to expand the park seaward. The southern portion of the area (transects 859 – 908) has experienced light to moderate erosion over time with an average rate of -0.3 ft/yr.
Last updated: July 2021
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