Bridges and Tunnels

Hennepin Avenue Bridge,Minneapolis

The Channel tunnel is between 40 metres and 75 metres below the surface.

They support their on weight.

Hamburg has over 2,500 bridges, more than any city in the world. One of its most prominent bridges is the Kohlbrandbrucke, which is 12,927 feet long.

the confederation bridge is located in P.E.I. and attaches it to part of New Brunswick

There are 130 -200 bridges over the Thames. Possibly the most famous is the Tower Bridge near the centre of London.

steel concrete cables

With ever-increasing travel between the U.K. and France, there simply was no way for all those cars and people to be carried on slow ferries. Even the faster hovercraft couldn't handle the number of travellers, and in any case hovercraft are rather energy-inefficient.

Rail transport is hands down the most efficient way to move goods and people, and with recent upgrades to rails on the British side the trip from one capital to the other can be made at speeds of up to 300 km/hr.

It takes 2 hours 15 minutes from London to Paris by train via the Channel Tunnel. More passengers travel from London to Paris by train than by air.

The Sunshine Skyway Bridge is located in Florida and is built from concrete and steel. The longest span on the bridge is 1,200 feet.

the average length of a suspension bridge is 120000000m.

Building the Brooklyn Bridge near the end of the 1870s was a very difficult task, as the tools were still not powerful enough like nowadays. But this was not the only problem, as the bridge had to overcome a huge distance on the East River between Manhattan and Brooklyn, where the riverbed was very muddy. The first task was to find a solid bedrock for the base of the bridge, but it turned out that it was even deeper than expected, so work was halted for a while for further investigations.

The macinac (pronounced "mack in aw" not "mack in ak") is a suspension bridge.

Opened November 1, 1957 it has a total length of 3,800 ft (1,115m).

It is the third longest suspension bridge in the US (only the Golden Gate & Verazzano-Narrows are longer) and twelfth longest in the world.

You have two options for travelling through the Channel Tunnel. You can take a high speed passenger train, or you can take put your car one of the vehicle transporting trains.

A train takes approximately 25 minutes to go through the Channel Tunnel.

The Channel Tunnel connects the United Kingdom and France. It runs between Folkestone in Kent and Sangatte near Calais in Pas-de-Calais.

The Eurotunnel Shuttle is the brand name for the car carrying trains which run through the Channel Tunnel between Folkestone and Calais.

Eurostar is the brand name of the company running high speed trains London-Paris and London-Lille-Brussels through the Channel Tunnel.

Eurostar uses the stations: St. Pancras (London), Gare du Nord (Paris), Bruxelles Midi (Brussels) and Lille Europe.

Currently these are the only passenger trains operating through the tunnel.

The Eurostar takes 2 hours 15 minutes between London and Paris. There is approximately one train per hour in each direction.

The world's smallest international bridge is in the Thousand Islands, an archepelago in the St. Lawrence River between Canada and the United States. The bridge, a foot bridge about 30 feet long (10 meters) is between a small island on the Canadian side, which contains a house, and a smaller island on the U.S. side which serves as the home's back yard.

The strengths of Truss bridges are that Truss bridges can support and resist lateral loads. Another is that unlike the Arch and Beam bridges, the Truss bridge prevents twisting and swaying during earthquakes and high winds. Truss bridges also resist the forces of compression and tension.

== == When Flagler decided to extend his railroad down to Key West (which was at the time one of the major cities in Florida), he was originally going to build the railroad on fill, because that was cheaper than building bridges. But the locals needed the channel south of Vaca Key to get their produce from the bay side to Key West. Moser Channel is the only deep water route from one side to the other. So old Henry decided to build a bridge. Everyone said it could not be done. But he ordered special salt water cement from Germany, and his people built the bridge.

This is a viaduct. noun, a long bridge-like structure carrying a road or railway across a valley or other low ground.

because they wanted to cross cars from one area to another.

Tasman Bridge disaster happened in 1975.

Concrete was invented by the Romans and so was the arch, so for thousands of years it has been around. A good example of use of the arch and concrete are the aqua ducts.

The Hudson river

well you can go on google and search it you might get the answer then come and tell us how about that?

vault

The tappan zee bridge is 3 miles long from the nyaks to westchester.