Bridges and Tunnels

Over 40,000 people (cars and pedestrians) use the Bridge each day. Any number will be an approximation with daily and annual variations.

Most highway bridges and railroad bridges are simple beam bridges. In this type of construction, the road surface or deck is supported by a series of longitudinal beams made of concrete, steel or timber. These in turn rest on bearings, which reston piers or abutments.

The curvature of the Earth had to be taken into account when the bridge was built.

Sydney Harbour Bridge was opened to traffic on 19 March 1932.

The bridge was built to connect the Sydney CBD with the North Shore commercial and residential areas on Sydney Harbour. Prior to this, the closest crossing was much further upstream. In 1912, John Bradfield was appointed chief engineer of the bridge project, which also had to include a railway. Plans were completed in 1916 but the start of World War I delayed implementation until 1922. Construction of the bridge began in 1924, and took 1400 men eight years to build at a cost of £4.2 million.

See the related link for more information.

The George Washington Bridge was built in just four years and was opened on Oct. 25, 1931

The Golden Gate Bridge is famous because it is the tenth longest suspension bridge in the world.

10

Clady bridge,linking Donegal. To Tyrone..four miles from donegal county town,Liford just of the main Liford to Ballybofey.......

The channel tunnel

The current (as of December 30, 2010) toll for cars on the Verrazano-Narrows Bridge is $13 cash (without E-ZPass) and $9.60 with E-ZPass.

Note that these tolls apply only to vehicles heading from Brooklyn to Staten Island. There is NO toll if you're heading from Staten Island to Brooklyn.

The toll depends on the size (number of axles) of the truck. For 2-axles the toll is $10.00. Each additional axles adds $6. 00 to the toll. Trucks using EZ-PASS pay $7.50 for the first 2 axles plus $4.50 for each additional.

The longest bridges in the world include Danyang-Kunshan Grand Bridge, Tianjin Grand Bridge, and Weinan Weihe Grand Bridge. Other long bridges include the Bang Na Expressway and the Beijing Grand Bridge.

There have been many London bridges. The modern London Bridge built in 1971. It was designed by William Graham Holford, Baron Holford and built by the firm of Mott, Hay and Anderson.

John Rennie designed the London Bridge of 1831-1967.

the bridge ws made when president quentin trembly the third, the 8th and a half president made pant illigal, and declared war on pancakes. he then life sistained himself in peanut brittle.

This is a wonderful question. The bridge and the inlet through the hills around San Francisco to San Francisco Bay are called The Golden Gate, and there is a great story behind this name. If you get to San Francisco, be sure to drive across the Bridge and turn left on Conzelman Road in the Marin County Headlands to the top of the hill, where you can gaze out at the Golden Gate. Good signage there tells the story. A well-educated young army surveyor named John Fremont came to this territory in the 1840s to map out the terrain and bestow names. He was struck by the beauty of the scene and reached back in his European literature studies for the name of one of the loveliest areas of Europe, the Straits of Bosporus. Literary folks called that The Golden Gate. He bestowed this name on this new California beauty spot. Ironically, this name was given just a few years before gold was discovered in California, in 1848. So the name Golden Gate resonated well as history proceeded. Seeing the Golden Gate Bridge and the lovely inlet into San Francisco Bay should be at the top of your San Francisco visit list. At the south end of the Bridge, walk along Crissy Field and stop at the Vista Point overlook. At the north end there is another Vista Point. Then drive up Conzelman Road to enjoy the full panorama of arguably one of the lovelier accessible places on the planet. Posted by Lee Foster, Answers San Francisco Expert.

The Musée d'Orsay, which houses the world's largest collection of impressionist and post-impressionist paintings, is housed in the former Gare d'Orsay railway station.

221 feet is the greatest depth..... below are some figures to give you an idea of what depths (literally) they had to go to: Maximum depth below mean sea level

Northern Line, just south of Waterloo station 21.3m (70ft)

Maximum depths below ground level

Deep-level tube lines

Northern Line, Holly Bush Hill, Hampstead 67.4m (221ft)

Sub-surface cut & cover lines

East London Line, Wapping 18.29m (60ft)

Average depths below ground level

Deep level tube lines 24.4m (80ft)

Sub-surface cut & cover lines 7.3m (24ft)

Deepest station

Hampstead 58.5m (192ft) below ground level I hope you enjoy the research, cheers, Skunkfarmer - New Hampshire USA

Sydney Harbor Bridge

There are many suspension bridges in New York City. To name a few: the Verrazano-Narrows Bridge, the Brooklyn Bridge, the Manhattan Bridge, the Williamsburg Bridge, the George Washington Bridge, the Throgs Neck Bridge, the Bronx-Whitestone Bridge, and the East River Bridge.

The East River Bridge is part of the Triboro aka Robert F. Kennedy Bridge, which is actually three connected bridges. The other two are the Harlem River Bridge (a lift bridge) and the Bronx Kill Crossing (a truss bridge).

Central America connects North and South America.

The chief engineer was John Roebling, but he died early on in the construction, after an accident on site crushed his toes and led to a deadly tetanus infection. His son, Washington Roebling, took over as chief engineer, with help from his wife (John Roebling's daughter-in-law), Emily Warren Roebling.

London's Tower Bridge, which crosses the Thames near the Tower of London is a Bascule bridge whereby two halves of the bridge swing into the air to let tall ships pass underneath. The mechanism is made of steel but encased in stone for the sake of appearance. Naturally the road surfaces are tarmacadam.

Steel and Metal

Queens and The Bronx are connected by three bridges: The Bronx-Whitestone Bridge, the Throgs Neck Bridge, and the Triborough or Triboro Bridge, which is also called the Robert F. Kennedy or RFK Bridge.

The current (as of December 30, 2010) toll for cars on all three of these bridges is $6.50 cash (without E-ZPass) and $4.80 with E-ZPass.

The longest bridge in the UK as at 2006, is the Humber Estuary bridge, completed in 1981 at a length of 1,410 metres. At the time of construction, it was the longest bridge in the world, but is now the 4th longest in the world. The Humber Bridge is the longest bridge in the United Kingdom AS TAKEN BY THE LENGTH OF THE MAIN SPAN, and therefore the 4th longest in the world when using that criteria. The longest bridge in it's entirety is the Second Severn Crossing, which has a length of roughly 3.2 miles, over twice as long as the Humber Bridge.