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Saint Croix–Vanceboro Bridge
The Saint Croix–Vanceboro Bridge is an international bridge, which connects the communities of St. Croix, New Brunswick in Canada and Vanceboro, Maine in the United States, across the St. Croix River. The bridge consists of three reinforced concrete slab spans for a total length of , which carries a two lane roadway across the river. The bridge was constructed in 1927 as a concrete T-beam structure, and opened in 1928. The original bridge was replaced with the current deck in 1997. Transport Canada estimated the bridge's traffic at 66,635 vehicles annually in 2006. Border crossing The Vanceboro - St. Croix Border Crossing connects the towns of Vanceboro, Maine and St. Croix, New Brunswick on the Canada–United States border The international border between Canada and the United States is the longest in the world by total length. The boundary (including boundaries in the Great Lakes, Atlantic, and Pacific coasts) is long. The land border has two sections: Canada' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deck 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. There are several types of truss bridges, including some with simple designs that were among the first bridges designed in the 19th and early 20th centuries. A truss bridge is economical to construct primarily 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 the strength to maintai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reinforced Concrete
Reinforced concrete, also called ferroconcrete or ferro-concrete, is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility. The reinforcement is usually, though not necessarily, steel reinforcing bars (known as rebar) and is usually embedded passively in the concrete before the concrete sets. However, post-tensioning is also employed as a technique to reinforce the concrete. In terms of volume used annually, it is one of the most common engineering materials. In corrosion engineering terms, when designed correctly, the alkalinity of the concrete protects the steel rebar from corrosion. Description Reinforcing schemes are generally designed to resist tensile stresses in particular regions of the concrete that might cause unacceptable cracking and/or structural failure. Modern reinforced concrete can contain varied reinforcing materials made o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vanceboro, Maine
Vanceboro is a town in Washington County, Maine, United States. The town was named after landowner William Vance. The main village in town is located at the eastern terminus of Maine State Route 6. Vanceboro is across the St. Croix River from St. Croix, New Brunswick, Canada, to which it is connected by the Saint Croix–Vanceboro Bridge. Vanceboro is also connected to St. Croix by the Saint Croix–Vanceboro Railway Bridge, which is used by the New Brunswick Southern Railway. The population was 102 at the 2020 census. History Vanceboro was selected as the border crossing for the European and North American Railway (E&NA) between Bangor, Maine, and Saint John, New Brunswick, during surveys in the 1860s. This line was opened by U.S. President Ulysses S. Grant and Governor General of Canada Lord Lisgar during a ceremony at the border in October 1871. In 1882, the E&NA's rail line from Vanceboro to Bangor was leased by the Maine Central Railroad. In 1889, the MEC's rail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T-beam
A T-beam (or tee beam), used in construction, is a Structural engineering, load-bearing structure of reinforced concrete, wood or metal, with a capital 'T'-shaped Cross section (geometry), cross section. The top of the T-shaped cross section serves as a flange or compression member in resisting compression (physical), compressive Stress (physics), stresses. The web (vertical section) of the Beam (structure), beam below the compression flange serves to resist shear stress. When used for highway bridges the beam incorporates reinforcing bars in the bottom of the beam to resist the tensile stresses which occur during bending. The T-beam has a big disadvantage compared to an I-beam (with '' shape) because it has no bottom flange with which to deal with tensile forces, applicable for steel section. One way to make a T-beam more efficient structurally is to use an inverted T-beam with a floor slab or bridge deck joining the tops of the beams. Done properly, the slab acts as the compres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transport Canada
Transport Canada () is the Ministry (government department), department within the Government of Canada responsible for developing regulations, Policy, policies and Public services, services of road, rail, marine and air Transport in Canada, transportation in Canada. It is part of the Transportation, Infrastructure and Communities (TIC) portfolio. The current Minister of Transport (Canada), Minister of Transport is Chrystia Freeland. Transport Canada is headquartered in Ottawa, Ontario. History The Department of Transport was created in 1935 by the government of William Lyon Mackenzie King in recognition of the changing transportation environment in Canada at the time. It merged three departments: the former Department of Railways and Canals (Canada), Department of Railways and Canals, the Department of Marine, and the Civil Aviation Branch of the Department of National Defence (Canada), Department of National Defence (c. 1927 when it replaced the Air Board (Canada), Air Board) u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada–United States Border
The international border between Canada and the United States is the longest in the world by total length. The boundary (including boundaries in the Great Lakes, Atlantic, and Pacific coasts) is long. The land border has two sections: Canada's border with the Northern Tier (United States), northern tier of the contiguous United States to its south, and with the U.S. state of Alaska to its west. The bi-national International Boundary Commission deals with matters relating to marking and maintaining the boundary, and the International Joint Commission deals with issues concerning boundary waters. The agencies responsible for facilitating legal passage through the international boundary are the Canada Border Services Agency (CBSA) and U.S. Customs and Border Protection (CBP). History 18th century The Treaty of Paris (1783), Treaty of Paris of 1783 ended the American Revolutionary War between Kingdom of Great Britain, Great Britain and the United States. In the second article o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McAdam, New Brunswick
McAdam is a village located in the southwestern corner of York County, New Brunswick, Canada. The village covers and had a population of 1,151 as of 2016. An independent study was executed early 2018, and the results found that the population of McAdam had grown to 1,225. Turning the tide of a shrinking population, this is the first time the community's population grew since 1956. The area was first settled in the mid-to-late 19th century as a group of small lumber camps. The area further developed due to its advantageous location as an important railway junction between the main line of the Canadian Pacific Railway from the Maritime provinces to New England and central Canada and branch lines to St. Stephen, St. Andrews and Woodstock. The town was an important servicing stop for many passenger and freight trains, as well as military trains during the World Wars. A large railway station was built to accommodate travelers and a roundhouse and yard were located in the village ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of International Bridges In North America
An international bridge is a structure that provides transportation across borders. Tourists and cross-border commuters travelling between countries often use these bridges. Such bridges also facilitate international trade. Below is a list of international bridges in North America: Canada–United States Guatemala–Mexico * Puente Rodolfo Robles – A bridge connecting Ayutla, San Marcos, Guatemala, with Ciudad Hidalgo, Chiapas, Mexico. Mexico–United States See also * List of international bridges An international bridge is a structure that provides transportation across border Borders are generally defined as geography, geographical boundaries, imposed either by features such as oceans and terrain, or by polity, political entities such a ... References {{Reflist International bridges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Bridges In New Brunswick
A road is a thoroughfare used primarily for movement of traffic. Roads differ from streets, whose primary use is local access. They also differ from stroads, which combine the features of streets and roads. Most modern roads are paved. The words "road" and "street" are commonly considered to be interchangeable, but the distinction is important in urban design. There are many types of roads, including parkways, avenues, controlled-access highways (freeways, motorways, and expressways), tollways, interstates, highways, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1928
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path 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, 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 in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the word ''bridge' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
