King Harbor Breakwater (North Breakwater)

The north breakwater is shore-connected and curves to a south head rather than forming a detached offshore reef. The inner/harbor flank has a real -18-ft MLLW dredged corridor (stations 15+00–31+50); chart soundings deepen toward the harbor entrance/head and outer face, but ocean-side zone boundaries are generalized from chart and engineering data. No invented point depths are implied.

• Channel-facing flank · unverified
  not yet assessed for snag risk

  No reliable rock-toe depth classification was independently verified for this interval.

• Channel-facing flank · shallow boulder
  shallow rock, highest snag risk — worse as the tide drops

  Shoreward/inner approach with mapped riprap and shallower contours; no exact current depth assigned.

• Channel-facing flank · mixed drop · ~18 ft
  rock into a slope, moderate snag risk

  Engineering survey/dredging Area I follows stations 15+00–31+50; design depth -18 ft MLLW with -20 ft allowable overdredge.

• Channel-facing flank · deep water · ~30 ft
  deep water at the rocks, less exposed but harder to free gear

  NOAA/USACE sources put the entrance in roughly 27–40 ft; generalized along the protected side toward the entrance, not a point sounding.

• Ocean-facing flank · mixed drop · ~25 ft
  rock into a slope, moderate snag risk

  NOAA chart soundings step from roughly 2–5 fathoms; USACE repair design reaches -25 ft MLLW on the seaward slope. Approximate only.

• Ocean-facing flank · deep water · ~40 ft
  deep water at the rocks, less exposed but harder to free gear
  Wave run-up

  Chart soundings increase toward the head/Redondo Canyon; use as a broad zone, not an exact spot depth, and expect large swell.

• Outer tip · deep water · ~40 ft
  deep water at the rocks, less exposed but harder to free gear
  Wave run-up

  Entrance/head zone; CERC/USACE reports natural entrance depths of 34–40 ft. Head/current/wave hazard dominates.