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Crib Lighthouse
A Crib lighthouse is a type of lighthouse whose structure rests on a concrete or masonry foundation supported with wooden beams. The name "crib" refers to the wooden crib pier style of construction which was used as a foundation for lighthouses. When it came time to build, wooden cribs were constructed onshore then towed to the site where they were filled with stone so they sank in place. The crib was then leveled and capped with concrete or masonry on which the lighthouse structure was constructed. Crib lighthouses were built extensively in the Great Lakes region, as the hardrock bottoms of these water bodies provided ideal foundations. Problems arose however if the crib settled unevenly into the earth as was the case with the Detroit River Light. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectacle Reef Light Airial View
In general, spectacle refers to an event that is memorable for the appearance it creates. Derived in Middle English from c. 1340 as "specially prepared or arranged display" it was borrowed from Old French ''spectacle'', itself a reflection of the Latin ''spectaculum'' "a show" from ''spectare'' "to view, watch" frequentative form of ''specere'' "to look at." The word ''spectacle'' has also been a term of art in theater dating from the 17th century in English drama. The masque and spectacle Court masques and masques of the nobility were most popular in the Jacobean and Caroline era. Such masques, as their name implies, relied heavily upon a non-verbal theater. The character lists for masques would be quite small, in keeping with the ability of a small family of patrons to act, but the costumes and theatrical effects would be lavish. Reading the text of masques, such as ''The Masque at Ludlow'' (most often referred to as ''Comus''), the writing is spare, philosophical, and grand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mark dangerous coastlines, hazardous shoals, reefs, rocks, and safe entries to harbors; they also assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and has become uneconomical since the advent of much cheaper, more sophisticated and effective electronic navigational systems. History Ancient lighthouses Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since elevating the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crib Pier
A crib pier is a type of pier built with the supporting columns made of 'cribs'.{{cite web , url = http://www.piers.co.uk/piers.htm , title = Piers , publisher = National Piers Society The National Piers Society (NPS) is a registered charity in the United Kingdom dedicated to promoting and sustaining interest in the preservation and continued enjoyment of seaside piers. It was founded in 1979, with Sir John Betjeman as the f ... (2006) , accessdate = February 24, 2012 , url-status = dead , archiveurl = https://web.archive.org/web/20080929075523/http://www.piers.co.uk/piers.htm , archivedate = September 29, 2008 Typically a crib is made from wood, but it could be made from any long cylindrical material. Pairs of logs are laid parallel, then others laid over them to make a square, and this continues upwards in a style of building similar to a log cabin's construction. Each crib can be either empty or filled with a material such as rocks, gravel, concrete blocks, etc. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Lakes
The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lakes, which are Lake Superior, Superior, Lake Michigan, Michigan, Lake Huron, Huron, Lake Erie, Erie, and Lake Ontario, Ontario and are in general on or near the Canada–United States border. Hydrologically, lakes Lake Michigan–Huron, Michigan and Huron are a single body joined at the Straits of Mackinac. The Great Lakes Waterway enables modern travel and shipping by water among the lakes. The Great Lakes are the largest group of freshwater lakes on Earth by total area and are second-largest by total volume, containing 21% of the world's surface fresh water by volume. The total surface is , and the total volume (measured at the low water datum) is , slightly less than the volume of Lake Baikal (, 22–23% of the world's surface fresh water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detroit River Light
The Detroit River Light, also known as Bar Point Shoal Light, was first established as a lightship in 1875. The current sparkplug lighthouse was built in 1885. It sits in Lake Erie, south of the mouth of the Detroit River, from land and about from the Ambassador Bridge in the Detroit River. It is about from the border with Canada,NOAA Chart 14848 Detroit River Michigan Extension and just under from Put-in-Bay, Ohio. Its original 4th order Fresnel lens is on loan to the Michigan Maritime Museum. Construction and infrastructure The Detroit River Light replaced a Canadian lightship that had been posted in this channel location since 1875, guiding upbound vessels making a turn in the Detroit River. The United States Lighthouse Board completed the Detroit River Light in 1885 at a cost of $78,000. The light was first lit on August 20, 1885. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse Digest
''Lighthouse Digest'', a specialty magazine from FogHorn Publishing in East Machias, Maine, is about maritime history with particular attention to the preservation of lighthouses and their past. Though it is geared toward enthusiasts and antiquarians in the United States, it is also quoted commonly in more academic publications, and its editors have become a staple presence in scholarly circles. Editor Tim Harrison issued the first number in May, 1992. Scope Coverage includes historic and current lighthouse events and an events calendar for lighthouse activities around the United States and elsewhere. They publish a "Doomsday List" of Endangered lighthouses, and have helped save a number of at-risk lighthouses. They have been credited with uncovering many parts of lighthouse history that had been unknown, or which were thought to have been lost. Each issue carries articles and unusual lighthouse-related stories that, for the most part, cannot be found elsewhere, and many phot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectacle Reef Light
Spectacle Reef Light is a lighthouse east of the Straits of Mackinac and is located at the northern end of Lake Huron, Michigan. It was designed and built by Colonel Orlando Metcalfe Poe and Major Godfrey Weitzel, and was the most expensive lighthouse ever built on the Great Lakes. Because of the challenges of building on a shoal, including laying an underwater crib, it is said to be the "most spectacular engineering achievement" in lighthouse construction on Lake Huron. It took four years to build because weather limited work to mostly the summer season. Workers lived in a structure at the site; one of the limiting conditions. It ranks high as an engineering achievement among all the lighthouses built on the Great lakes. In 2020, ThSpectacle Reef Preservation Societywas formed and began to restore the lighthouse. History Overview From 1852 to the beginning of the 20th century, the United States Lighthouse Board was active in building lighthouses to support ship traffic on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Crib
Water cribs are offshore structures that collect water from close to the bottom of a lake to supply a pumping station onshore. The name crib is derived from the function of the structure—to surround and protect the intake shaft. Cities supplied with drinking water collected by water cribs include Chicago, where two of the nine originally built cribs are in active use. Water cribs were also used as residences for caretakers who would live in the structure year round. Jobs included clearing debris and maintaining valves, gears, and instruments to keep the water flowing. These jobs have since been automated with periodic maintenance leaving no need for a full-time caretaker. Major cities with water cribs Notes References See also * Lighthouse * Crib lighthouse A Crib lighthouse is a type of lighthouse whose structure rests on a concrete or masonry foundation supported with wooden beams. The name "crib" refers to the wooden crib pier style of construction which was used a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mark dangerous coastlines, hazardous shoals, reefs, rocks, and safe entries to harbors; they also assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and has become uneconomical since the advent of much cheaper, more sophisticated and effective electronic navigational systems. History Ancient lighthouses Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since elevating the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Architecture
Marine architecture is the design of architectural and engineering structures which support coastal design, near-shore and off-shore or deep-water planning for many projects such as shipyards, ship transport, coastal management or other marine and/or hydroscape activities. These structures include harbors, lighthouses, marinas, oil platforms, offshore drillings, accommodation platforms and offshore wind farms, floating engineering structures and building architectures or civil seascape developments. Floating structures in deep water may use suction caisson for anchoring.A History of Naval Architecture, By John Fincham See also *, a temporary water-excluding structure built in place, sometimes surrounding a working area as does an open caisson. * * * * * * * * * * * * * * * * * Photo gallery File:VolturnUS 1-8 in Castine ME.jpg, University of Maine's Floating wind turbine VolturnUS 1:8 was the first grid-connected offshore wind turbine in the Americas. File:Floating loose mooring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
