|
Hereford Bridge
The Hereford Bridge spans the San Pedro River near Hereford, Arizona, and was built in three stages. The first one was built in 1912–1913, consisting of a single span truss, with steel cylinder piers as supports. It as constructed by the Midland Bridge Company of Kansas City, Missouri for a cost of $3,112, and completed in March 1913. Two years later, Cochise County ordered a second span, as well as moving the original span approximately two-hundred feet upriver. The project was completed in 1915 by Bane and Tarrant, using a superstructure manufactured by Penn Bridge Company of Beaver Falls, Pennsylvania. The third and final stage was done in 1927, consisting of a third pony truss span. It was constructed by the Ware Company of El Paso, Texas, using a hundred-foot truss from the Virginia Bridge and Iron Company of Roanoke, Virginia. While the bridge is typical, the fact that it was constructed in stages is unusual. The span constructed in 1912 is one of the two earlie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hereford, Arizona
Hereford is a populated place in Cochise County along the San Pedro Riparian National Conservation Area in the southern part of the U.S. state of Arizona. It is southeast of Sierra Vista and is a part of the Sierra Vista-Douglas micropolitan area. The elevation is 4,193 feet at the location of the original townsite at the far eastern end of the unincorporated area; the residential area runs for another 8 miles west from this location, blending into the unincorporated area of Nicksville at an elevation of approximately 4800'. Hereford Station Post Office is located at the far western end of Nicksville, at the foot of the Huachuca Mountains.''Cochise County'', Dex: Official Directory, CenturyLink, 2014, pg 1 History Founded in 1878, the community was named after Frank Hereford, who was a friend of the town's founder, and a distinguished local attorney. It was where cowboys Frank McLaury and Tom McLaury first met and became associated with Ike Clanton, in 1878. The two brothers w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Pedro River (Arizona)
The San Pedro River is a northward-flowing stream originating about south of the international border south of Sierra Vista, Arizona, in Cananea Municipality, Sonora, Mexico. The river starts at the confluence of other streams (Las Nutrias and El Sauz) just east of Sauceda, Cananea. Within Arizona, the river flows north through Cochise County, Arizona, Cochise County, Pima County, Arizona, Pima County, Graham County, Arizona, Graham County, and Pinal County, Arizona, Pinal County to its confluence with the Gila River, at Winkelman, Arizona. It is the last major, undammed desert river in the Southwestern United States, American Southwest, and it is of major ecological importance as it hosts two-thirds of the avian diversity in the United States, including 100 species of breeding birds and almost 300 species of migrating birds. History The first people to enter the San Pedro Valley were the Clovis people who hunted mammoth here from 10,000 years ago. The San Pedro Valley has the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truss
A truss is an assembly of ''members'' such as beams, connected by ''nodes'', that creates a rigid structure. In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points. Although this rigorous definition allows the members to have any shape connected in any stable configuration, trusses typically comprise five or more triangular units constructed with straight members whose ends are connected at joints referred to as ''nodes''. In this typical context, external forces and reactions to those forces are considered to act only at the nodes and result in forces in the members that are either tensile or compressive. For straight members, moments (torques) are explicitly excluded because, and only because, all the joints in a truss are treated as revolutes, as is necessary for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midland Bridge Company
The Midland Bridge Company is a firm based in Kansas City, Missouri, United States, that has built numerous bridges. Several of its works are listed on the U.S. National Register of Historic Places (NRHP). Works of the firm include: * Dewey Bridge, built 1916, NE of Moab, Utah, carried Utah State Route 128 across the Colorado River. When completed, it was the second-longest suspension bridge west of the Mississippi River. Destroyed by fire in 2008, but still listed on the NRHP. * Cameron Suspension Bridge, Cameron, Arizona, carries U.S. Route 89 across Little Colorado River, longest suspension bridge west of the Mississippi at the time of construction. * Allentown Bridge, Indian Rt. 9402 over the Puerco River, milepost 9.1 Houck, Arizona, NRHP-listed * Caddo Lake Bridge, LA 538, over Caddo Lake, Mooringsport, Louisiana, NRHP-listed * Delaware River Parker Truss Bridge, Bridge St., 0.3 mi. W of int. with Main St. Perry, Kansas, NRHP-listed * EJE Bridge over Sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kansas City, Missouri
Kansas City (abbreviated KC or KCMO) is the largest city in Missouri by population and area. As of the 2020 census, the city had a population of 508,090 in 2020, making it the 36th most-populous city in the United States. It is the central city of the Kansas City metropolitan area, which straddles the Missouri–Kansas state line and has a population of 2,392,035. Most of the city lies within Jackson County, with portions spilling into Clay, Cass, and Platte counties. Kansas City was founded in the 1830s as a port on the Missouri River at its confluence with the Kansas River coming in from the west. On June 1, 1850, the town of Kansas was incorporated; shortly after came the establishment of the Kansas Territory. Confusion between the two ensued, and the name Kansas City was assigned to distinguish them soon after. Sitting on Missouri's western boundary with Kansas, with Downtown near the confluence of the Kansas and Missouri Rivers, the city encompasses about , making ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cochise County
Cochise County () is a county in the southeastern corner of the U.S. state of Arizona. It is named after the Native American chief Cochise. The population was 125,447 at the 2020 census. The county seat is Bisbee and the most populous city is Sierra Vista. Cochise County includes the Sierra Vista-Douglas, Arizona Metropolitan Statistical Area. The county borders southwestern New Mexico and the northwestern Mexican state of Sonora. History In 1528 Spanish Explorers: Álvar Núñez Cabeza de Vaca, Estevanico, and Fray Marcos de Niza survived a shipwreck off the Texas coast. Captured by Native Americans, they spent eight years finding their way back to Mexico City, via the San Pedro Valley. Their journals, maps, and stories led to the Cibola, seven cities of gold myth. The Expedition of Francisco Vásquez de Coronado in 1539 using it as his route north through what they called the Guachuca Mountains of Pima ( Tohono O'odham) lands and later part of the mission routes north, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superstructure
A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. Aboard ships and large boats On water craft, the superstructure consists of the parts of the ship or a boat, including sailboats, fishing boats, passenger ships, and submarines, that project above her main deck. This does not usually include its masts or any armament turrets. Note that in modern times, turrets do not always carry naval artillery, but they can also carry missile launchers and/or antisubmarine warfare weapons. The size of a watercraft's superstructure can have many implications in the performance of ships and boats, since these structures can alter their structural rigidity, their displacements, and/or stability. These can be detrimental to any vessel's performance if they are taken into consideration incorrectly. The height and the weight of superstructure on board a ship or a bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaver Falls, Pennsylvania
Beaver Falls is a city in Beaver County, Pennsylvania, United States. The population was 9,005 at the 2020 census. Located 31 miles (50 km) northwest of Pittsburgh, the city lies along the Beaver River, six miles (9 km) north of its confluence with the Ohio River. It is a part of the Pittsburgh metropolitan area. History The area of present-day Beaver Falls was first mentioned in 1770 in the journals of David Zeisberger, a Moravian Church missionary who eventually settled in present-day Lawrence County. A Lenape chief named Pakanke took Zeisberger to the valley surrounding the Beaver River, where the Lenape owned a large tract of open land which Zeisberger was given access to. In April 1770, Zeisberger and his followers set out in 16 canoes down the Allegheny and Ohio rivers, reaching the mouth of the Beaver three days later. They made their way up to what was called the “Falls of the Beaver," where they encamped. Early settlers included Dr. Samuel and Milo Ada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Paso, Texas
El Paso (; "the pass") is a city in and the county seat, seat of El Paso County, Texas, El Paso County in the western corner of the U.S. state of Texas. The 2020 population of the city from the United States Census Bureau, U.S. Census Bureau was 678,815, making it the List of United States cities by population, 23rd-largest city in the U.S., the List of cities in Texas by population, sixth-largest city in Texas, and the second-largest city in the Southwestern United States behind Phoenix, Arizona. The city is also List of U.S. cities with large Hispanic populations, the second-largest majority-Hispanic city in the U.S., with 81% of its population being Hispanic. Its metropolitan statistical area covers all of El Paso and Hudspeth County, Texas, Hudspeth counties in Texas, and had a population of 868,859 in 2020. El Paso has consistently been ranked as one of the safest large cities in America. El Paso stands on the Rio Grande across the Mexico–United States border from Ciuda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roanoke, Virginia
Roanoke ( ) is an independent city in the U.S. state of Virginia. At the 2020 census, the population was 100,011, making it the 8th most populous city in the Commonwealth of Virginia and the largest city in Virginia west of Richmond. It is located in the Roanoke Valley of the Roanoke Region of Virginia. Roanoke is the largest municipality in Southwest Virginia, and is the principal municipality of the Roanoke Metropolitan Statistical Area (MSA), which had a 2020 population of 315,251. It is composed of the independent cities of Roanoke and Salem, and Botetourt, Craig, Franklin, and Roanoke counties. Bisected by the Roanoke River, Roanoke is the commercial and cultural hub of much of Southwest Virginia and portions of Southern West Virginia. History Timeline * 1835 - Town of Gainesborough incorporated. * 1838 - Roanoke County created. * 1852 - Big Lick Depot built near Gainesborough; Virginia & Tennessee Railroad begins operating. * 1865 - April: Big Lick settlement sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warren Pony 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, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abutments
An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. Single-span bridges have abutments at each end which provide vertical and lateral support for the span, as well as acting as retaining walls to resist lateral movement of the earthen fill of the bridge approach. Multi-span bridges require piers to support ends of spans unsupported by abutments. Dam abutments are generally the sides of a valley or gorge, but may be artificial in order to support arch dams such as Kurobe Dam in Japan. The civil engineering term may also refer to the structure supporting one side of an arch, or masonry used to resist the lateral forces of a vault.Pevsner, N. (1970) ''Cornwall''; 2nd ed. Harmondsworth: Penguin; p. 245 The impost or abacus of a column in classical architecture may also serve as an abutment to an arch. The word derives from the verb "abut", meaning to "touch by means of a mutual border". Use in engineering An abutment may be us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> El Paso, Texas")
