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A seawall (or sea wall) is a form of coastal defense constructed where the sea, and associated coastal processes, impact directly upon the landforms of the coast. The purpose of a seawall is to protect areas of human habitation, conservation, and leisure activities from the action of tides , waves , or tsunamis . [ 1 ]
The Galveston Seawall is a seawall in Galveston, Texas, that was built after the Galveston hurricane of 1900 for protection from future hurricanes. Construction began in September 1902, and the initial segment was completed on July 29, 1904. From 1904 to 1963, the seawall was extended from 3.3 miles (5.3 km) to over 10 miles (16 km). [2]
Cost comparisons between various seawalls are always site specific, but Seabees use approximately 22% the mass of rock for the same exposure. As the area of the unit is sensibly independent of height [aspect ratios in use vary from 0.4 to 2.5] the mass of the unit can be optimised for all stages of the production and construction process.
The Alaskan Way Seawall is a seawall which runs for approximately 7,166 feet (2,184 m) along the Elliott Bay waterfront southwest of downtown Seattle from Bay Street to S. Washington Street. [1] The seawall was being rebuilt in the 2010s as part of a waterfront redevelopment megaproject estimated to cost over $1 billion.
The Sea Bright–Monmouth Beach Seawall is a seawall located along the Jersey Shore in the Monmouth County, New Jersey towns of Sea Bright and Monmouth Beach. It roughly runs north-south direction along 4.7 miles (7.6 km) of the barrier spit of land along the lower Sandy Hook peninsula between the Atlantic Ocean and the Shrewsbury River estuary.
Rose Bay Sea Wall is a heritage-listed former Aboriginal land, farms and road reserve and now sea wall, road reserve and esplanade at New South Head Road, Rose Bay, New South Wales, Australia. It was designed by Herbert E. Ross and built from 1924 to 1926 by Woollahra Municipal Council .
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