0
Bridges and Tunnels
A bridge is a link between two places, such as over a river, a road or a depression, that caters to pedestrians and/or vehicles. A tunnel is an underground link between two places, often underneath a riverbed, for pedestrians and/or vehicles.
4,393 Questions
Sections of bridges expand due to heating and/or changes over time in the bridge structural material (e.g. wood). [[User:Cjonb|Cjonb]] 18:33, 2 Jun 2008 (UTC)
Where is the longest bridge is the US?
The pontchartrain causeway in new Orleans Louisiana is 23.87 miles long, the longest in America
What was the cost of the chunnel?
There are two methods of using the Channel Tunnel. Eurostar, a fast rail service from London to Europe. & the Shuttle, that takes passengers in their cars or coaches & lorries from Folkestone to Calais. Technically you cannot go ON the Channel Tunnel, but you can go THROUGH the channel tunnel.
Eurostar fares start at £69 return standard class.
Euro Tunnel fares start at £45 for a car on a 2 day return
prices correct as of 5/2/10 (2/5/10 in the US)
How long is the Seven Mile Bridge?
Construction of the original bridge began in 1908 as part of the Florida East Coast Rail Line.
Four years after construction began, the bridge was complete.
Construction of the new bridge began in 1979 and was finished three years later.
a precision rowing team
What is the short definition of the Channel Tunnel?
The Channel Tunnel is a rail tunnel which connects England and France, running underneath the English Channel.
The Channel Tunnel is a 50.5 Km from end to end, of which 37.9 Km is underwater.
The Channel Tunnel runs between Folkestone in Kent and Sangatte near Calais in Pas-de-Calais.
At its lowest point, the Channel Tunnel is 75 metres (250 ft) below sea level.
A train takes approximately 25 minutes to go through the Channel Tunnel.
The Channel Tunnel opened in 1994.
You have two options for travelling through the Channel Tunnel. You can take a high speed passenger train, or you can put your car one of the drive-on, drive-off vehicle transporting trains.
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 trains run at up to 300 Km/Hr on the High Speed Lines on either side of the Channel Tunnel.
Eurostar uses the stations: St. Pancras (London), Gare du Nord (Paris), Bruxelles Midi (Brussels) and Lille Europe. Some trains stop additionally at other intermediate stations.
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.
How many bridges on the thames river and what are their name?
75 non tidal and 29 over the tidal part of the Thames
What would happen to a bridge on a hot day if it did not have expansion joints?
The bridge would probably begin to crumble due to the heat expanding and stretching the bridge so much. The metals and the cement would stretch and crack causing it to crumble under any weight.
Is the chunnel from Paris France to England running?
today (28 dec 2009) it is fully running after last week closure.
Why is it important to build bridges?
It's extremely useful to a modern country to build roads and bridges as this is the main way of getting materials and people to where they are useful. In Europe and north America today almost all of our produce, food, and other materials are delivered to their final destination by truck. People are delivered to their jobs by cars or buses. None of these roads can cross rivers, hence bridges are important.
One perfect example of the importance of these was seen in the wars in Iraq, in the beginning the Allied air forces concentrated on bombing bridges and roads. This alone brought the Iraqi economy to a halt.
How long is the Chesapeake Bay tunnel?
MOST of the bridge is low level, about 20-25 ft above the water (depending on tides) There are two elevated bridges to permit boats to pass beneath the roadway- one is 40 ft high, the other 75 feet high. Of course, there are two tunnels that are BELOW water level. Beautiful drive.
The year the mackinaw bridge was complete?
They started building the Mackinac Bridge in 1957. The bridge was finished and allowed traffic to cross it in 1957.
What is the best material to make a bridge with?
That could depend on several factors like essential life span, carrying capacity and length.
How do you solve konigsberg bridge problem?
Leonhard Euler proved that the problem has no solution.
What forces have to be considered when designing a bridge?
You should consider the gravity of earth and the mass of the bridge because mass effects the gravitational pull on an object. Also, consider forces of nature. Consider the location of the bridge and how much trafficking will happen on it. If one of these are ignored your bridge could easily fall apart.
What are the advantages and disadvantages of river bridges?
Mainly for transportaion/commuting. The downsize is when the river swells. A town near where I live had two (2) bridges to access it here in Arizona. They both were washed away during monsoon and the town was officially declared an "island" for a short while. All 3000+ residents had to be evacuated by helicopter...luckily the waters did not rise too much
Which London bridge opens to let ships through?
Tower Bridge - the nearest to the sea and the entrance to the Pool of London
Is the Sydney Harbour Bridge the biggest bridge in Australia?
This depends entirely on what defines "biggest".
The Sydney Harbour Bridge is the largest steel arch bridge in the world, though not the longest, with the top of the bridge standing 134 metres above the harbour. At 48.8 m wide, it is the widest bridge in the world (as of 2004).
However, the Hornibrook Highway, which was the first bridge to connect Brisbane with the Redcliffe Peninsula, used to be the longest road bridge in Australia. The 2.8km two-lane Hornibrook Highway was opened on 4 October 1935, and featured a single central arch where the channel of the river runs, allowing for fishing craft to pass underneath. Deterioration of the bridge through the years necessitated the building of a new bridge, and a replacement three lane bridge, the Houghton Highway, was opened in 1979. A second bridge running oarallel to the Houghton, the Ted Smout Bridge, was completed in 2010. The Hornibrook Highway has now been dismantled.
