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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] |
Historic American Engineering Record
Heritage Documentation Programs (HDP) is a division of the U.S. National Park Service (NPS) responsible for administering the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER), and Historic American Landscapes Survey (HALS). These programs were established to document historic places in the United States. Records consist of measured drawings, archival photographs, and written reports, and are archived in the Prints and Photographs Division of the Library of Congress. Historic American Buildings Survey In 1933, NPS established the Historic American Buildings Survey following a proposal by Charles E. Peterson, a young landscape architect in the agency. It was founded as a constructive make-work program for architects, draftsmen and photographers left jobless by the Great Depression. It was supported through the Historic Sites Act of 1935. Guided by field instructions from Washington, D.C., the first HABS recorders were tasked with docume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parker Truss
A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or sometimes both in response to dynamic loads. The basic types of truss bridges shown in this article have simple designs which could be easily analyzed by 19th and early 20th-century engineers. A truss bridge is economical to construct because it uses materials efficiently. Design The nature of a truss allows the analysis of its structure using a few assumptions and the application of Newton's laws of motion according to the branch of physics known as statics. For purposes of analysis, trusses are assumed to be pin jointed where the straight components meet, meaning that taken alone, every joint on the structure is functionally considered to be a flexible joint as opposed to a rigid joint with strength to maintain its own shape, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiya River
The Taiya River (also Dyea River , Donald J. Orth, ''Dictionary of Alaska Place Names'', Geological Survey Professional Paper, Volume 567, U.S. Government Printing Office, 1967. p.941.) is a 17-mile-long (27 km) in the of running from the border with |
North Slope Borough, Alaska
The North Slope Borough is the northernmost borough in the US state of Alaska and thus, the northernmost county or equivalent of the United States as a whole. As of the 2020 census, the population was 11,031. The borough seat and largest city is Utqiaġvik (known as Barrow from 1901 to 2016), which is also the northernmost settlement in the United States. History The borough was established in 1972 by an election of the majority Indigenous people in the region, following Congressional passage of the Alaska Native Claims Settlement Act. Most are Inupiat. The borough was named for the Alaska North Slope basin. In 1974 it adopted a Home Rule Charter, enabling it to exercise any legitimate governmental power. The borough has first-class status and exercises the powers of planning, zoning, taxation, and schools."Your Government" North Slope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaktuvuk Pass, Alaska
Anaktuvuk Pass ( ik, Anaqtuuvak, , or , ) is a city in North Slope Borough, Alaska, United States. The population was 282 at the 2000 census and 324 as of the 2010 census. History Anaktuvuk Pass was named after the Anaktuvuk River. ''Anaktuvuk'' is the English way of spelling "anaqtuġvik", ''place of caribou droppings'' in Inupiaq, the language of the Inupiat. A nomadic group of Inupiat called ''Nunamiut'' lived inland in northern Alaska, hunting caribou instead of the marine mammals and fish hunted by the rest of the Inupiat, who live on the coast. The Nunamiut traded with the coastal people for other items they needed. A decline in caribou populations around 1900 and in the 1920s caused many Nunamiut to move to the coast. In 1938, several Nunamiut families moved back to the Brooks Range, around Tulugak and the Killik River. In 1949 the Killik River group moved to Tulugak Lake, 15 miles north of where the village lies today. Anaktuvuk Pass is the only Nunamiut settleme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timber Bridge
A timber bridge or wooden bridge is a bridge that uses timber or wood as its principal structural material. One of the first forms of bridge, those of timber have been used since ancient times. History The most ancient form of timber bridge is the log bridge, created by felling a tree over a gap needing to be crossed. Among the oldest timber bridges is the Holzbrücke Rapperswil-Hurden crossing upper Lake Zürich in Switzerland; the prehistoric timber piles discovered to the west of the Seedamm date back to 1523 B.C. The first wooden footbridge led across Lake Zürich, followed by several reconstructions at least until the late 2nd century AD, when the Roman Empire built a wooden bridge. Between 1358 and 1360, Rudolf IV, Duke of Austria, built a 'new' wooden bridge across the lake that was used until 1878 – measuring approximately in length and wide. On April 6, 2001, the reconstructed wooden footbridge was opened, being the longest wooden bridge in Switzerland. The Kapell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sitka, Alaska
russian: Ситка , native_name_lang = tli , settlement_type = Consolidated city-borough , image_skyline = File:Sitka 84 Elev 135.jpg , image_caption = Downtown Sitka in 1984 , image_size = 260 , image_flag = , image_seal = , nickname = , motto = , image_map = Map of Alaska highlighting Sitka City and Borough.svg , map_caption = , coordinates = , subdivision_type = , subdivision_name = , subdivision_type1 = State , subdivision_type2 = , subdivision_name1 = , subdivision_name2 = , established_title = Colonized Colonization, or colonisation, constitutes large-scale population movements wherein migrants maintain strong links with their, or their ancestors', former country – by such links, gain advantage over other inhabitants of the territo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sitka Channel
The Sitka Channel is a strait that separates Japonski Island from Baranof Island in Alaska. The Sitka Channel, or more commonly referred to as simply The Channel by locals, is a notable feature of Sitka, Alaska that separates vital portions of infrastructure located on the peripheral Japonski Island from the rest of the community. Until 1972 the commute was only achievable through a schedule of shore boats that carried an estimated 1,000 people a day for 26 years. The ferries were retired when the John O'Connell Bridge was constructed (named after John W. O'Connell, a former mayor of Sitka). The Sitka Channel features numerous wharfs, piers, seafood processing plants, and harbors serving its thriving seafood industries as well as port facilities for the United States Coast Guard The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable-stayed Bridge
A cable-stayed bridge has one or more ''towers'' (or ''pylons''), from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern suspension bridge, where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge is optimal for spans longer than cantilever bridges and shorter than suspension bridges. This is the range within which cantilever bridges would rapidly grow heavier, and suspension bridge cabling would be more costly. Cable-stayed bridges were being designed and constructed by the late 16th century, and the form found wide use in the late 19th century. Early examples, including the Brooklyn Bridge, often combined features from both the cable-stayed and suspension designs. Cable-stayed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John O'Connell Bridge
The John O'Connell Bridge is a cable-stayed bridge over the Sitka Channel located in Sitka, Alaska. The bridge connects the town of Sitka on Baranof Island to the airport and Coast Guard Station on Japonski Island. Until the bridge was completed in 1971, the commute was only achievable through a ferry service. The bridge is named after John W. O'Connell, a former mayor of Sitka. The two-lane bridge is in total length, with a main span of . The bridge was also the United States' first vehicular cable-stayed girder spanned bridge. The four steel pylons carry two three-cable sets, each carrying a section of the bridge deck. Special consideration was given to the bridge's aesthetics due to its proximity to nearby Castle Hill. Approximately 4000 vehicles cross the bridge every day, up from the approximate 1000 shore boat passengers per day prior to the bridge's completion. A man from Bellingham, Washington, died in August 2015 after jumping off the bridge to swim ashore. The bridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilahina River
Gilahina River is a waterway in the U.S. state of Alaska in the Wrangell–St. Elias National Park and Preserve. The stream rises in mountains high between Lakina River on the east and Kuskulana River on the west. It is about long and joins the Chitina River below the Lakina. Three miles from the Chitina, it forks. The west branch, which is called the Chokosna, drains an area of and is nearly as large as the main stream above the forks. The upper of the Gilahina in its course through the mountains has a grade of about per mile. As it approaches the Chitina Valley, the grade increases, and for the lower , the average grade is about per mile. There are no glaciers in the basin, and at normal stages, the water is clear and free from sediment. The valley floor is made up of gravel, boulders, sand, and clay, and at high stages, the stream transports considerable material, causing marked changes in the channel. See also *List of rivers of Alaska This is a List of rivers in Alaska ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper River And Northwestern Railway
The Copper River and Northwestern Railway (CR&NW) consisted of two rail lines, the Copper River line and the Northwestern line. Michael James Heney had secured the right-of-way up the Copper River in 1904. He started building the railway from Cordova, Alaska in 1906. The town of Cordova, Alaska, was actually named by Heney on March 13, 1906, based on the original name given by Salvador Fidalgo. Both these railroads were abandoned and little remains of them. Only a 0-4-0 locomotive, "Ole", located near Goose City on a siding of the Alaska Anthracite Railroad Company is the only equipment left. Many of the holdings of the CR&NW railroad including Ole were acquired for this railroad by Mr. Clark Davis and his partners in 1908 after a major storm destroyed the Katalla area facilities in 1907. The town of Cordova would like to move Ole to a memorial site in Cordova to celebrate its role in these railroads. Ole was declared eligible for the National Register of Historic Places in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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