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A breakwater structure is designed to absorb the energy of the waves that hit it, either by using mass (e.g. with caissons), or by using a revetment slope (e.g. with rock or concrete armour units). In coastal engineering , a revetment is a land-backed structure whilst a breakwater is a sea-backed structure (i.e. water on both sides).
The lake-facing side of the breakwater was largely faced in riprap in 1961. The ends of the breakwater are marked by modern lights. [2] The oldest portion of the breakwater, about 1,000 feet (300 m) long, was built between 1836 and 1854, and consists of the middle sections of the present structure.
Frankfort MI harbor map Aerial view. The exterior basin of the Frankfort Harbor is formed by two breakwaters, 450 feet (140 m) apart at the outer ends. [5] The main section of the north breakwater is 972 feet (296 m) long, with a shore connector of 1,000 feet (300 m).
A mole is a massive structure, usually of stone, used as a pier, breakwater, or a causeway separating two bodies of water. A mole may have a wooden structure built on top of it that resembles a wooden pier. The defining feature of a mole, however, is that water cannot freely flow underneath it, unlike a true pier.
Indiana Harbor was constructed over several years, beginning in 1901, and this included a breakwater paralleling the east edge of the channel where it enters the lake. [4] In 1914 responsibility for the waterway and its facilities was assumed by the Corps of Engineers , and there is some indication that the Corps erected a lighthouse on the ...
A wave-dissipating concrete block is a naturally or manually interlocking concrete structure designed and employed to minimize the effects of wave action upon shores and shoreline structures, such as quays and jetties. One of the earliest designs is the Tetrapod, invented in 1950.
The Manistee Harbor, South Breakwater is a navigational structure located at the mouth of the Manistee River (at Lake Michigan), in Manistee, Michigan.It was listed on the National Register of Historic Places in 1995. [1]
Headland groyne or Bulkhead breakwater When groyne is built to attach a breakwater to shore, the resulting T-structure is called "headland breakwater", "headland groyne", "bulkhead groyne" or "bulkhead breakwater". Use of groynes and headland groyne, accumulates the sand across the beach but it tend to deplete the sand faster from the downdrift ...