breakwater
41National Harbor of Refuge and Delaware Breakwater Harbor Historic District — U.S. National Register of Historic Places U.S. Historic district …
42Ashland Harbor Breakwater Light — Infobox Lighthouse caption = location = Ashland, Wisconsin coordinates = coord|46|37|42|N|90|52|12|W|region:US type:landmark yearlit = 1915 automated = yeardeactivated = foundation = Concrete pier construction = Reinforced concrete / steel shape …
43Delaware Breakwater East End Light — Location Lewes, Delaware Coordinates …
44Portland Breakwater Light — Infobox Lighthouse caption = Portland Breakwater Lighthouse after restoration location = Portland harbor coordinates = coord|43|39|20|N|70|14|05|W|region:US type:landmark yearbuilt = 1855 yearlit = 1875 (current tower) automated = 1934… …
45Delaware Breakwater Range Front Light — Location Delaware Breakwater, Delaware Year first constructed 1838 Deactivated 1903 Original lens Six lamps and reflectors Current lens 1875: Fourth order Fresnel lens (removed) Characteristic White light flashes every 45 seconds Delaware… …
46Muskegon Breakwater Light — Muskegon Breakwater Lighthouse Location Muskegon, Michigan Coordinates …
47Phare de Saybrook Breakwater — Coordonnées …
48Manitowoc Breakwater Light — Manitowoc Breakwater Lighthouse Location Manitowoc, Wisconsin Coordinates …
49Plymouth Breakwater — is a 1,560 metre/1,700 yard stone breakwater protecting Plymouth Sound and the anchorages therein. It is 13 metres/40 feet wide at the top and the base is 65 metres/200 feet. It lies in about 10 metres/30 feet of water. Around 4 million tons of… …
50Delaware Breakwater — and Lewes Harbor U.S. National Register of Historic Places …