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Milltown Bridge (Milltown, Arkansas)
The Milltown Bridge is a historic stone arch bridge in rural southeastern Sebastian County, Arkansas. The bridge carries County Road 77 across an unnamed brook just west of its junction with White Mountain Road. It is a two-span closed spandrel structure, with each arch spanning and a total length of . The arches are formed out of rough-cut stone voussoirs. It was built in the 1930s with funding from the Works Progress Administration, and was, when listed on the National Register of Historic Places in 1990, one of only eight documented bridges of its type in the state. See also * List of bridges documented by the Historic American Engineering Record in Arkansas *List of bridges on the National Register of Historic Places in Arkansas *National Register of Historic Places listings in Sebastian County, Arkansas __NOTOC__ This is a list of the National Register of Historic Places listings in Sebastian County, Arkansas. This is intended to be a complete list of the properties and di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milltown, Arkansas
Milltown is an Unincorporated area, unincorporated community in Sebastian County, Arkansas, Sebastian County, Arkansas, United States. Milltown is located on Arkansas Highway 252, southeast of Greenwood, Arkansas, Greenwood. The Milltown Bridge (Milltown, Arkansas), Milltown Bridge in Milltown is listed on the National Register of Historic Places. References Unincorporated communities in Sebastian County, Arkansas Unincorporated communities in Arkansas {{SebastianCountyAR-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges Documented By The Historic American Engineering Record In Arkansas
__NOTOC__ This is a list of bridges documented by the Historic American Engineering Record in the U.S. state of Arkansas. Bridges Notes References {{HAER list, structure=bridge *List *List Arkansas Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage ... Bridges, HAER Bridges, HAER ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stone Arch Bridges In The United States
In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects. Rocks are usually grouped into three main groups: igneous rocks, sedimentary rocks and metamorphic rocks. Igneous rocks are formed when magma cools in the Earth's crust, or lava cools on the ground surface or the seabed. Sedimentary rocks are formed by diagenesis and lithification of sediments, which in turn are formed by the weathering, transport, and deposition of existing rocks. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places In Sebastian County, Arkansas
__NOTOC__ This is a list of the National Register of Historic Places listings in Sebastian County, Arkansas. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Sebastian County, Arkansas, 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 map. There are 60 properties and districts listed on the National Register in the county, one of which, the Fort Smith National Historic Site, is also a National Historic Landmark District. Another 7 properties were once listed but have been removed. Current listings Former listings See also *List of National Historic Landmarks in Arkansas *National Register of Historic Places listings in Arkansas This is a list of properties and historic districts in Arkansas that are listed on the National ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historic American Engineering Record In Arkansas
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events. Historians seek knowledge of the past using historical sources such as written documents, oral accounts, art and material artifacts, and ecological markers. History is not complete and still has debatable mysteries. History is also an academic discipline which uses narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. Historians often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history as an end in itself, as well as its usefulness to give perspective on the problems of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Bridges On The National Register Of Historic Places In Arkansas
A road is a linear way for the conveyance of traffic that mostly has an improved surface for use by vehicles (motorized and non-motorized) and pedestrians. Unlike streets, the main function of roads is transportation. There are many types of roads, including parkways, avenues, controlled-access highways (freeways, motorways, and expressways), tollways, interstates, highways, thoroughfares, and local roads. The primary features of roads include lanes, sidewalks (pavement), roadways (carriageways), medians, shoulders, verges, bike paths (cycle paths), and shared-use paths. Definitions Historically many roads were simply recognizable routes without any formal construction or some maintenance. The Organization for Economic Co-operation and Development (OECD) defines a road as "a line of communication (travelled way) using a stabilized base other than rails or air strips open to public traffic, primarily for the use of road motor vehicles running on their own wheels", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places Listings In Sebastian County, Arkansas
__NOTOC__ This is a list of the National Register of Historic Places listings in Sebastian County, Arkansas. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Sebastian County, Arkansas, Sebastian County, Arkansas, 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 map. There are 60 properties and districts listed on the National Register in the county, one of which, the Fort Smith National Historic Site, is also a National Historic Landmark District. Another 7 properties were once listed but have been removed. Current listings Former listings See also *List of National Historic Landmarks in Arkansas *National Register of Historic Places listings in Arkansas References {{Sebastian County, Arkansas Sebastian County, Arka ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges On The National Register Of Historic Places In Arkansas ...
This is a list of bridges and tunnels on the National Register of Historic Places in the U.S. state of Arkansas. See also * List of bridges in Arkansas References {{NRHP bridges Arkansas Bridges Bridges 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 someth ... [...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] |
Arkansas
Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage language, a Dhegiha Siouan language, and referred to their relatives, the Quapaw people. The state's diverse geography ranges from the mountainous regions of the Ozark and Ouachita Mountains, which make up the U.S. Interior Highlands, to the densely forested land in the south known as the Arkansas Timberlands, to the eastern lowlands along the Mississippi River and the Arkansas Delta. Arkansas is the 29th largest by area and the 34th most populous state, with a population of just over 3 million at the 2020 census. The capital and most populous city is Little Rock, in the central part of the state, a hub for transportation, business, culture, and government. The northwestern corner of the state, including the Fayetteville–Springdaleâ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voussoir
A voussoir () is a wedge-shaped element, typically a stone, which is used in building an arch or vault. Although each unit in an arch or vault is a voussoir, two units are of distinct functional importance: the keystone and the springer. The keystone is the centre stone or masonry unit at the apex of an arch. The springer is the lowest voussoir on each side, located where the curve of the arch springs from the vertical support or abutment of the wall or pier. The keystone is often decorated or enlarged. An enlarged and sometimes slightly dropped keystone is often found in Mannerist arches of the 16th century, beginning with the works of Giulio Romano, who also began the fashion for using voussoirs above rectangular openings, rather than a lintel (Palazzo Stati Maccarani, Rome, circa 1522). The word is a stonemason's term borrowed in Middle English from French verbs connoting a "turn" (''OED''). Each wedge-shaped voussoir ''turns aside'' the thrust of the mass above, transf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closed Spandrel
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. A viaduct (a long bridge) may be made from a series of arches, although other more economical structures are typically used today. History Possibly the oldest existing arch bridge is the Mycenaean Arkadiko Bridge in Greece from about 1300 BC. The stone corbel arch bridge is still used by the local populace. The well-preserved Hellenistic Eleutherna Bridge has a triangular corbel arch. The 4th century BC Rhodes Footbridge rests on an early voussoir arch. Although true arches were already known by the Etruscans and ancient Greeks, the Romans were – as with the vault and the dome – the first to fully realize the potential of arches for bridge construction. A list of Roman bridges compiled by the engineer Colin O'Connor features 330 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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