. Detached breakwaters for shore protection. Breakwaters; Shore protection. located 610 m offshore of the original shoreline. This shore-parallel struc- ture is situated at a mean water depth of m MSL and has a crest at + m MSL. The mean tide range is m. Although the breakwater's original pur- pose was to provide a harbor of refuge for small craft, the shoreline response demonstrates the application of detached breakwaters for shore protection. It was completed in 1934, and by 1948 the shoreline behind the structure had accreted 240 m, while the downdrift shoreline experienced subs
. Detached breakwaters for shore protection. Breakwaters; Shore protection. located 610 m offshore of the original shoreline. This shore-parallel struc- ture is situated at a mean water depth of m MSL and has a crest at + m MSL. The mean tide range is m. Although the breakwater's original pur- pose was to provide a harbor of refuge for small craft, the shoreline response demonstrates the application of detached breakwaters for shore protection. It was completed in 1934, and by 1948 the shoreline behind the structure had accreted 240 m, while the downdrift shoreline experienced substantial erosion. The region shoreward of the structure was subsequently dredged and the mate- rial placed on the downdrift beach. The structure has lost crest elevation allowing some wave transmission (Figure 8b). The salient has never developed into a tombolo. Haleiwa Beach, Hawaii 19. The Haleiwa Beach breakwater (Figure 9) was constructed in 1965 and protects a park facility and war memorial monument. It is a single imperme- able, rubble-mound structure, 50 m long and approximately 90 m offshore of the original, eroding shore. Water depth at the structure is m MSL, crest is. Figure 9. Breakwater at Haleiwa Beach, Hawaii (1966) 19. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Dally, William R; Pope, Joan; U. S. Army Engineer Waterways Experiment Station; Coastal Engineering Research Center (U. S. ). Vicksburg, Miss. : U. S. Army Engineer Waterways Experiment Station ; [Springfield, Va. : Available from National Technical Information Service]
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