The Olowalu study area (transects 327 – 428) is defined by Olowalu Wharf in the south and Awalua Beach in the north. The shoreline is comprised of continuous black sand and cobble beach with intermittent patches of calcareous sand. Fronting the shoreline is fringing reef and rocky shoals extending offshore while the back shore is dominated by Honoapiʻilani Highway and former sugarcane fields. Most of the foreshore in the Olowalu area is dominated by black sand, with cobble beach extending landward of the berm.
The study area has experienced light to moderate erosion over time with an average rate of -0.5 ft/yr. The northern portion of the area (transects 394 – 428) abutting Honoapiʻilani Highway, has experienced light to moderate erosion with an average rate of -0.4 ft/yr. The southern (transects 327 – 393) portion of the study area has experienced an average rate reflective of the area trend (-0.5 ft/yr).
Last updated: July 2021
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