The Leonard P. ZakimBunker Hill Memorial Bridge is a cable-stayed bridge completed in 2003 across the Charles River in Boston, Massachusetts. It is a replacement for the Charlestown High Bridge, an older truss bridge constructed in the 1950s.
A cable-stayed bridge has one or more towers, 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.
The Rhaetian Railway, abbreviated RhB, is a Swiss transport company that owns the largest network of all private railway operators in Switzerland. Headquartered in Chur, the RhB operates all the railway lines of the Swiss canton of Grisons, except for the line from Sargans to the cantonal capital, Chur, which are operated by Swiss Federal Railways (SBB CFF FFS), as well as the line from Disentis/Mustér to the Oberalp Pass and further on to Andermatt, Uri, which is operated by Matterhorn Gotthard Bahn (MGB). Inaugurated in 1888 and expanded from 1896 onwards in various sections, the RhB network is located almost entirely within Grisons, with one station across the Italian border at Tirano.
The Millau Viaduct is a multispan cable-stayed bridge completed in 2004 across the gorge valley of the Tarn near Millau in the Aveyron department in the Occitanie Region, in Southern France. The design team was led by engineer Michel Virlogeux and English architect Norman Foster. As of October 2023, it is the tallest bridge in the world, having a structural height of 343 metres (1,125 ft).
Cornish wrestling is a form of wrestling that has been established in Cornwall for many centuries and possibly longer. It is similar to the Breton Gouren wrestling style. It is colloquially known as "wrasslin’" in the Cornish dialect of English; historically, this usage is attested by Chaucer, Shakespeare and Drayton.
Salginatobel Bridge is a reinforced concrete arch bridge designed by Swiss civil engineer Robert Maillart. It was constructed across an alpine ravine in the grisonian Prättigau, belonging to the municipality of Schiers, in Switzerland between 1929 and 1930. In 1991, it was declared an International Historic Civil Engineering Landmark, the thirteenth such structure and the first concrete bridge so designated.
Klosters is a Swiss village in the Prättigau, politically part of the municipality of Klosters-Serneus, which belongs to the political district Prättigau/Davos in the canton of Grisons. In 2021, the municipality shortened its name to Klosters. Klosters itself consists of the two main parts Klosters Dorf ('Village') and Kloster Platz ('Place'), and the settlements Selfranga, Äuja, Monbiel. Together with neighbouring Serneus, the two villages form the former municipality of Klosters-Serneus. On 1 January 2016, the former municipality of Saas im Prättigau merged into Klosters-Serneus.
An extradosed bridge employs a structure that combines the main elements of both a prestressed box girder bridge and a cable-stayed bridge. The name comes from the word extrados, the exterior or upper curve of an arch, and refers to how the "stay cables" on an extradosed bridge are not considered as such in the design, but are instead treated as external prestressing tendons deviating upward from the deck. In this concept, they remain part of the main bridge superstructure.
Christian Menn was a renowned Swiss civil engineer and bridge designer. He was involved in the construction of around 100 bridges worldwide, but the focus of his work was in eastern Switzerland, especially in canton Graubünden. He continued the tradition of and had a decisive influence on Swiss bridge building. The technical and aesthetic possibilities of prestressed concrete were most fully realized with his bridges in Switzerland.
The Hawkesbury River railway bridge is a heritage-listed railway bridge in New South Wales, Australia that carries the Main North railway line across the Hawkesbury River. The bridge crosses between Brooklyn on the northern outskirts of Sydney and Cogra Bay in the Central Coast region. The railway bridge was to be the last link in a railway network that linked the state capitals Adelaide, Melbourne, Sydney and Brisbane and was a major engineering feat at the time. The original railway bridge was built in 1889 and replaced by the current bridge in 1946. The 1946 bridge was added to the New South Wales State Heritage Register on 2 April 1999.
Reverse Standards Conversion or RSC is a process developed by a team led by James Insell at the BBC for the restoration of video recordings which have already been converted between different video standards using early conversion techniques.
Schiers is a Swiss village in the Prättigau and a municipality in the political district Prättigau/Davos Region in the canton of Graubünden. The first concrete girder bridge ever built, Salginatobel Bridge, is located in Schiers. Designed by Robert Maillart and completed in 1930, in 1991 it was the first concrete bridge to be designated an International Historic Civil Engineering Landmark by the American Society of Civil Engineers.
Ganter Bridge is a multi-span reinforced-concrete road bridge that is the second longest spanning bridge in Switzerland after Poya Bridge. It spans the Ganter River valley and is located along the Simplon Pass road about 10 km (6 mi) south of Brig in the canton of Valais, Switzerland. It was designed by renowned Swiss civil engineer Christian Menn and completed in 1980. It is notable for its innovative design and its stylish geometric profile in its spectacular Alpine setting.
Certain works of structural engineering design are also works of structural art. Such works can be classified as structural art when they attain excellence in the three areas of efficiency, economy, and elegance, as defined by Prof. David P. Billington of Princeton University. A key part of the concept of structural art is that the structural engineer making the design must exercise his or her creativity and playfulness to create an elegant structure within the constraints imposed by engineering requirements. These constraints include the safety and serviceability of the structure. Therefore, a structure cannot be a successful work of structural art without also being a successful work of structural engineering design, yet many works of structural engineering design that are safe and serviceable do not rise to the level of structural art because they fail to be economical, efficient, or elegant. Structural art is a topic of active scholarly research at several universities in the United States, including Princeton University, Tufts University, Bucknell University, University of Massachusetts Amherst, the Massachusetts Institute of Technology, and Roger Williams University, and in other parts of the world such as Spain and Germany. While structural artists often collaborate with architects, the discipline of structural art is based upon engineering rather than architectural design. A recent summary about this topic can be found in a review paper.
Three consecutive Extradosed bridges are part of a north beltway of La Paz in Bolivia.
Bremer River Rail Bridge is a heritage-listed railway bridge at off Bremer Street, North Ipswich, City of Ipswich, Queensland, Australia. It was built from 1865 to 1915. It was added to the Queensland Heritage Register on 11 December 2006.
The Yowaka River bridge is a heritage-listed road bridge that carries the Princes Highway across the Yowaka River at Greigs Flat, New South Wales, Australia. It was built in 1936. The bridge is also known as the Yowaka Bridge near Eden. The bridge is owned by Transport for NSW. It was added to the New South Wales State Heritage Register on 20 June 2000.
The Landquart–Davos Platz railway line, also known as the Prättigau line after the Prättigau region, is a metre-gauge railway line in Grisons canton, Switzerland. It is operated by the Rhaetian Railway. It has connected Landquart in the Alpine Rhine valley with the spa town of Davos since 1890.
Road signs in Ecuador are regulated in Manual Básico de Señalización Vial and Reglamento Técnico Ecuatoriano. RTE INEN 004-1:2011. Señalización vial, which is based on the United States' Manual on Uniform Traffic Control Devices (MUTCD) originally developed by the Federal Highway Administration (FHWA). Thus, road signs in Ecuador are similar in design to road signs used in the United States. One of the differences is that Ecuador uses the metric system, for example, vehicle speed is measured in km/h.
