The Sydney Harbour Bridge is located at Port Jackson, New South Wales, Australia. The construction is one of the world's longest steel-arch bridges, measuring 503 meters (1,650 ft). It crosses the harbour from the city center to the north shore.
The Golden Gate Bridge is a suspension bridge that connects San Francisco with Marin County across the mouth of the Bay Area. At 1,988 feet, it is the highest bridge of its kind in North America. The bridge carries two traffic lanes and a wide sidewalk on each side. It is known for its distinctive green color and view of the Pacific Ocean from the western side.
The Brooklyn Bridge is a continuous pedestrian bridge connecting the Manhattan borough of New York City with the Brooklyn borough. Opened in 1883, it is the longest single-span suspension bridge in the Western Hemisphere. The central portion of the bridge consists of eight large towers supporting an arched roadway deck lined with shops and restaurants. The bridge provides access between the neighborhoods of Brooklyn and Manhattan.
The Hoover Dam is a United States federal improvement project on the Colorado River near Lake Mead in Nevada and Arizona. It is estimated to have created the world's first water-powered electric power station when it went into operation in 1935. The dam creates Lake Mead, one of the largest man-made lakes in the United States.
The United Arab Emirates has erected the world's longest steel arch bridge, measuring 32.7 meters in length, according to the Guinness Book of World Records. Ras Al Khaimah, the UAE's northernmost emirate, is home to the Shammal Bridge. It links two residential developments and consists of four sections each made up of two semicircular arches connected by a central section. The total weight of the bridge is about 14,000 tons.
Guinness verified the record on August 4, 2014. The bridge was completed in 2011 by the German company Hochtauli Group with assistance from Saudi Arabia's King Abdullah Economic City (KAEC). It crosses over a road connecting two residential developments in Ras Al Khaimah - The Gardens and The Bridges. The bridge takes its name from the surrounding nature preserve where animals such as gazelles and monkeys can be seen in their natural habitat.
Ras Al Khaimah is an emirate in the United Arab Emirates. It is located on the eastern coast of the country near Oman. The new bridge is part of a development project that also includes two other bridges and a marina. It is estimated to have cost $100 million (Rs 500 million) to build.
"We are very proud of this world-class project," said Sultan Ahmed bin Sulayem, chairman of RAK Properties.
The Millau Viaduct France's Millau Viaduct The Millau Viaduct in France is the world's highest bridge, surpassing even the great Eiffel Tower in height. The 343-meter-high bridge opened in 2004 and spans the Tarn Valley connecting Clermont-Ferrand, Beziers, and Narbonne. It connects three regions of France: Puy-de-Dôme, Auvergne-Rhône-Alpes, and Aquitaine.
It is also a UNESCO World Heritage Site. The road it stands on, the A75 autoroute, is a popular route for tourists traveling between France and Spain. The cost of building the bridge was estimated at around $150 million (€120 million).
It is composed of two parallel concrete pylons with an internal core lane that runs along their entire length. The central section of each pylon is hollow, allowing more light to reach down into the valley while still providing enough weight to support the traffic load. There are also two smaller bridges attached to the side of the viaduct close to where it meets the autoroute.
The tower-like structure of the center pier is intended to resemble a silo, with some saying it looks like a giant needle being stabbed into the sky. The whole thing is surrounded by a fence designed to prevent animals from falling off the edge.
Say it out loud: China's Fairy Bridge, also known as the Xianren Bridge, comes to a halt. The world's biggest natural arch, Xianren Bridge, also known as Fairy Bridge, has a span of 400 feet, or 120 meters. The Buliu River created the bridge via the limestone karst. It's around 40 kilometers northwest of Fengshan in northwest Guangxi Province, China. The area is known for its giant natural formations.
Fairy bridges are formed when the river flows through a groove in the rock causing an arch to be formed where it meets the shoreline. The Chinese name "fairy" refers to the shape of the bridge's gopuram (tower), which looks like a little house with windows and doors.
These bridges are only visible from above due to their isolation in the mountains. No roads lead to them, and it takes about two hours by bus to get there. However, the journey is worth it because they are amazing structures!
Natural arches like these can be found all over the world, but none compare in size to Xianren Bridge. In fact, no one knows exactly how big it was before it collapsed into the Buliu River in 2001. But according to some estimates, it may have been as wide as 300 feet (100 m).
Even though it's not open to the public, scientists have studied Xianren Bridge because it provides evidence of climate change happening in real time.
A natural bridge, on the other hand, is defined as a "natural arch that spans an erosion valley" by the Dictionary of Geological Terms. The Xianren Bridge in China, with a span of 122 +-5 meters (400 +-15 ft), is by far the greatest natural arch. It's also one of the most famous landmarks in China.
This structure consists of two large arches, which intersect at right angles, forming a four-way intersection. The main arch measures about 20 meters wide and 15 meters high. It looks like a giant 'T' with four legs. The two smaller arches are known as the "head" and "tail" of the 'T'. They measure about 10 meters wide and 5 meters high.
Natural bridges occur when there is precipitation loss from a region, resulting in water flowing into voids left by the retreating land. This may be due to tectonic activity, such as mountain building or faulting. When this occurs over many years, the climate becomes dry, leading to the formation of caves and holes within the rock. As the surface continues to drop, the environment becomes more cave-like, until what was once surface soil becomes deep enough for trees to grow in. These forests provide protection for the underlying rock, preventing it from being eroded any further.
As the climate warms, there is less precipitation loss and thus fewer natural bridges are formed.