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Miles Glacier Bridge
The Miles Glacier Bridge, also known as the Million Dollar Bridge, was built in the early 1900s across the Copper River (Alaska), Copper River fifty miles from Cordova, Alaska, Cordova in what is now the U.S. state of Alaska. It is a multiple-span Pennsylvania truss bridge which completed a railroad line for the Copper River and Northwestern Railway, built by J. P. Morgan and the Guggenheim family to haul copper from the old mining town of Kennicott, Alaska, Kennicott, now located within the Wrangell–St. Elias National Park and Preserve, to the port of Cordova. It earned its nickname because of its $1.4 million cost, well recouped by the about $200 million worth of copper ore which was shipped as a result of its construction. Current access to the bridge is limited to jet boat travel up the Copper River or boat travel downriver from Chitina, Alaska, Chitina due to the erosion along the Copper River Highway, and there is currently no access by road. The cost of repairs has preve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper River Highway
The Copper River Highway extends from Cordova along the old railbed of the Copper River and Northwestern Railway. Construction began in 1945, and was originally intended to link Cordova with the state highway system at Chitina. The Million Dollar Bridge, which had carried trains until the CR&NW shut down, was converted for highway use. It is one of two discontinuous segments of Alaska Route 10. The road extended only slightly beyond the bridge when the Good Friday earthquake of 1964 halted construction and severely damaged the Million Dollar Bridge, collapsing the north span. Temporary repairs were made, and the bridge continued to be used. Permanent repairs were not completed until 2005. The first of the highway is paved; the rest is gravel. A primitive four-wheel-drive road continues for beyond the end of the highway to the Allen River. The highway past mile 36 has been de facto abandoned since 2011 due to erosion of the approach to Bridge 339. Route description The Copp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael James Heney
Michael James "Moose" Heney (October 24, 1864 – October 11, 1910) was a railroad contractor, best known for his work on the first two railroads built in Alaska, the White Pass and Yukon Route and the Copper River and Northwestern Railway. The son of Irish immigrants, Heney rose to the top of his profession before his death. His life inspired several books and at least one movie. Early life Michael James Heney was born on October 24, 1864, near Stonecliffe, Renfrew County, Ontario, Canada. He was the son of Thomas Eugene Heney and Mary Ann McCourt, Irish immigrants. His family farmed in the upper Ottawa Valley. At age 14, Heney ran away from home to work on the newly announced Canadian Pacific Railway. He started as a water boy, then graduated to a track laying crew assistant and mule skinner. In 1883 he was included in a survey and location crew in the Selkirk Mountains, eventually becoming foreman. In 1887 he was hired to construct a rail line for the Seattle, Lake Shore and E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges To Nowhere
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges In Unorganized Borough, Alaska
A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1911
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1911 Establishments In Alaska
A notable ongoing event was the race for the South Pole. Events January * January 1 – A decade after federation, the Northern Territory and the Australian Capital Territory are added to the Commonwealth of Australia. * January 3 ** 1911 Kebin earthquake: An earthquake of 7.7 moment magnitude strikes near Almaty in Russian Turkestan, killing 450 or more people. ** Siege of Sidney Street in London: Two Latvian anarchists die, after a seven-hour siege against a combined police and military force. Home Secretary Winston Churchill arrives to oversee events. * January 5 – Egypt's Zamalek SC is founded as a general sports and Association football club by Belgian lawyer George Merzbach as Qasr El Nile Club. * January 14 – Roald Amundsen's South Pole expedition makes landfall, on the eastern edge of the Ross Ice Shelf. * January 18 – Eugene B. Ely lands on the deck of the USS ''Pennsylvania'' stationed in San Francisco harbor, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places Listings In Chugach Census Area, Alaska
__NOTOC__ This is a list of the National Register of Historic Places listings in Chugach Census Area, Alaska. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Chugach Census Area, Alaska, Chugach Census Area, Alaska, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a Google map. There are 10 properties and districts listed on the National Register in the census area, including 2 National Historic Landmarks. Another property was once listed but has been removed. Current listings Former listings See also * List of National Historic Landmarks in Alaska * National Register of Historic Places listings in Alaska References {{DEFAULTSORT:National Register of Historic Places listings in Chugach Census Area, Alaska Lists of National Register of Historic Places in Unorganized B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges On The National Register Of Historic Places In Alaska ...
This is a list of bridges and tunnels on the National Register of Historic Places in the U.S. state of Alaska. See also * List of bridges in Alaska References {{NRHP in Alaska by borough and census area Bridges Alaska Bridges Bridges A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges Documented By The Historic American Engineering Record In Alaska
__NOTOC__ This is a list of bridges documented by the Historic American Engineering Record in the US state of Alaska. Bridges References {{HAER list, structure=bridge *List *List Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ... Bridges, HAER Bridges, HAER ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caisson (engineering)
In geotechnical engineering, a caisson ( or ; borrowed from French ''caisson'', from Italian ''cassone'', meaning ''large box'', an augmentative of ''cassa'') is a watertight retaining structure used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, or for the repair of ships. Caissons are constructed in such a way that the water can be pumped out, keeping the work environment dry. When piers are being built using an open caisson, and it is not practical to reach suitable soil, friction pilings may be driven to form a suitable sub-foundation. These piles are connected by a foundation pad upon which the column pier is erected. Caisson engineering has been used at least since the 18th century, and was notably used in the construction of the Brooklyn Bridge, which was completed in 1883. Types To install a caisson in place, it is brought down through soft mud until a suitable foundation material is encountered. While bedrock is pref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar (river Morphology)
A bar in a river is an elevated region of sediment (such as sand or gravel) that has been deposited by the flow. Types of bars include mid-channel bars (also called braid bars and common in braided rivers), point bars (common in meandering rivers), and mouth bars (common in river deltas). The locations of bars are determined by the geometry of the river and the flow through it. Bars reflect sediment supply conditions, and can show where sediment supply rate is greater than the transport capacity. A mid-channel bar, is also often referred to as a braid bar because they are often found in braided river channels. Braided river channels are broad and shallow and found in areas where sediment is easily eroded like at a glacial outwash, or at a mountain front with high sediment loads. These types of river systems are associated with high slope, sediment supply, stream power, shear stress, and bed load transport rates. Braided rivers have complex and unpredictable channel patt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Calving
Ice calving, also known as glacier calving or iceberg calving, is the breaking of ice chunks from the edge of a glacier.Essentials of Geology, 3rd edition, Stephen Marshak It is a form of ice ablation or ice disruption. It is the sudden release and breaking away of a mass of ice from a glacier, iceberg, ice front, ice shelf, or crevasse. The ice that breaks away can be classified as an iceberg, but may also be a growler, bergy bit, or a crevasse wall breakaway.Glossary of Glacier Terms Ellin Beltz, 2006. Retrieved July 2009. Calving of glaciers is often accompanied by a loud cracking or booming sound before blocks of ice up to high break loose and crash into the water. The entry of the ice into the water causes large, and often hazardous waves. The waves formed in locations like |
