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Northport Bridge
The Northport Bridge spans the Columbia River near Northport, Washington, close to the border with Canada. The steel cantilever through-truss bridge replaced an 1897 timber bridge, and was opened in 1951. It carries Washington State Route 25. It is one of a series of similar bridges built at about the same time, including the Grand Coulee Bridge and the Kettle Falls Bridges. The Northport Bridge's total length is . The main span consists of a central span of between cantilever spans, for a total span of . The steel anchor spans are long, with additional concrete approach spans. The bridge opened to traffic on June 13, 1951, at a cost of $1,751,587. The bridge was designed by George Stevens of the Washington State Highways, and the main span was built by the Midland Structural Steel Company. Work began in August 1946. Floods in 1948 undermined the south main pier of the steel structure, causing the design to be changed from a section of earth fill to five additional T-beam co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northport, Washington
Northport is a town in Stevens County, Washington, United States. The population was 295 at the 2010 census. History Northport began when railroad builder Daniel C. Corbin had agents purchase two wooded benches overlooking the Columbia River from the federal government in 1892. Corbin had plans to extend his Spokane Falls and Northern Railway (S&FN) from Little Dalles, the town seven miles south, to the rich mining districts of southern British Columbia. Northport would provide a railhead for two railroads into Canada. At this time, ''The Kootenai Steamship Company'' riverboats provided service from Little Dalles to Revelstoke, B.C. After the S&FN reached Northport on Sept. 18, 1892, the riverboats ran from Northport to Revelstoke. Northport became an international port of entry in 1895. In March 1896 a major fire occurred in the business district. At least 16 businesses were destroyed or damaged. The north half of the Colville Indian Reservation, across the river from North ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia River
The Columbia River (Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada. It flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state of Oregon before emptying into the Pacific Ocean. The river is long, and its largest tributary is the Snake River. Its drainage basin is roughly the size of France and extends into seven US states and a Canadian province. The fourth-largest river in the United States by volume, the Columbia has the greatest flow of any North American river entering the Pacific. The Columbia has the 36th greatest discharge of any river in the world. The Columbia and its tributaries have been central to the region's culture and economy for thousands of years. They have been used for transportation since a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cantilever Bridge
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end (called cantilevers). For small footbridges, the cantilevers may be simple beam (structure), beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete. The steel truss cantilever bridge was a major engineering breakthrough when first put into practice, as it can span distances of over , and can be more easily constructed at difficult crossings by virtue of using little or no falsework. Origins Civil engineer, Engineers in the 19th century understood that a bridge that was continuous across multiple supports would distribute the loads among them. This would result in lower stresses in the girder or truss and meant that longer spans could be built. Several 19th-century engineers patented continuous bridges with hinge points mid-span. The use of a hing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington State Route 25
State Route 25 (SR 25), named the Coulee Reservoir Highway, is a state highway serving communities in Lincoln and Stevens counties in the U.S. state of Washington. The highway begins at an intersection with (US 2) east of Davenport and continues northwest to cross the Spokane River. From there, SR 25 parallels the Columbia River and Franklin D. Roosevelt Lake upstream through several small communities, passing the Gifford–Inchelium Ferry, to Kettle Falls. In Kettle Falls, the roadway intersects , co-signed with and continues north to Northport, where former is intersected and SR 25 crosses the Columbia River on the Northport Bridge. The highway travels northwest to the Canadian border, where it becomes (BC 22). SR 25 was originally a series of county roads built before 1912, but became part of the Inland Empire Highway in 1913 between Meyers Falls, now known as Kettle Falls, and Northport. In 1915, the highway was realigned west and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Coulee Bridge
The Grand Coulee Bridge, or Columbia River Bridge at Grand Coulee Dam, is a through-cantilever steel truss bridge built in 1934–35. It carries State Route 155 across the Columbia River immediately below Grand Coulee Dam, near the city of Grand Coulee, Washington. It was added to the National Register of Historic Places in 1982. . The bridge was built to transport heavy equipment across the Columbia River during the construction of the dam, and thereafter as a permanent highway bridge. As such, it was designed to carry a heavier load than was typical. The bridge is supported by two concrete piers, about high. During construction, one of the piers began to tilt, probably due to fine glacial material under the gravel. Additional supports were added as a temporary measure. It employed between 1,000 and 1,200 men. The piers were later taken down to bedrock using pneumatic caissons. See also *List of bridges documented by the Historic American Engineering Record in Washington (state ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kettle Falls Bridges
The Kettle Falls Bridges is the collective name for a pair of steel cantilever bridges carrying State Route 20/U.S. Route 395 and the Kettle Falls International Railway across the Columbia River at Kettle Falls, Washington. The south bridge carries motor vehicle traffic while the similar northern span is used for rail. History On May 3, 1941, the Columbia River road bridge at Kettle Falls opened to traffic. Both bridges were constructed to replace bridges flooded by waters rising behind the Grand Coulee Dam to form Franklin D. Roosevelt Lake. The bridges are historically significant because they feature the longest central spans of any highway bridge built in Washington state during the 1940s. In 1995 the steel truss road bridge was added to the National Register of Historic Places. Road bridge The road bridge, with a total length of , was completed in 1941, replacing a 1929 steel deck truss bridge whose location was to be partly submerged by Lake Roosevelt as it backed up be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic value". A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred in preserving the property. The passage of the National Historic Preservation Act (NHPA) in 1966 established the National Register and the process for adding properties to it. Of the more than one and a half million properties on the National Register, 95,000 are listed individually. The remainder are contributing resources within historic districts. For most of its history, the National Register has been administered by the National Park Service (NPS), an agency within the U.S. Department of the Interior. Its goals are to help property owners and inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Crossings Of The Columbia River
This is a list of bridges and other crossings of the Columbia River from the Pacific Ocean upstream to its source. Crossings See also * List of crossings of the Willamette River * Lists of Oregon-related topics * List of Washington-related topics * List of British Columbia-related topics References * * External links * {{Columbia River * Columbia River crossings Crossings Columbia River The Columbia River (Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, C ... Columbia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trail Bridge
A trail, also known as a path or track, is an unpaved lane or small road usually passing through a natural area. In the United Kingdom and the Republic of Ireland, a path or footpath is the preferred term for a pedestrian or hiking trail. The term is also applied in North America to routes along rivers, and sometimes to highways. In the US, the term was historically used for a route into or through wild territory used by explorers and migrants (e.g. the Oregon Trail). In the United States, "trace" is a synonym for trail, as in Natchez Trace. Some trails are dedicated only for walking, cycling, horse riding, snowshoeing or cross-country skiing, but not more than one use; others, as in the case of a bridleway in the UK, are multi-use and can be used by walkers, cyclists and equestrians alike. There are also unpaved trails used by dirt bikes and other off-road vehicles, and in some places, like the Alps, trails are used for transhumance, moving cattle and other livestock. Usage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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