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They have (overlapping) expansion joints that allows the span to shrink and stretch w/o forming a big gap.
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Why beam bridges were built?
Beam Bridges were built to make longer and more durable bridges.
This new deal program built schools buildings dams and bridges?
public works authority
What type of bridges were built using the truss design?
arch bridges
What does the sign watch for ice on bridges mean?
Sometimes, due to the road mixture used, bridges can be icy while the rest of the road is not.
What are bridges built from?
Bridges can be built of many different materials including stone, concrete, wood and metals.
Advantages and disadvantages of suspension bridges?
It is good that they are flexible, however when very bad weather happens it can be bad. They are also bad for heavy loads. Two advantages are that they can be built high and they do not require a lot of material to be built.
Why are the Romans remembered for their skill in engineering?
bridges, they built bridges and other things
What are pontoon bridges used for?
They are often built by military engineers to cross rivers where there are no bridges.
Are all bridges built over water?
No. Bridges can span any gap in the terrain.
What actors and actresses appeared in The Bridges That Built London - 2012?
The cast of The Bridges That Built London - 2012 includes: Dan Cruickshank as Himself - Presenter
How have bridges impacted society?
There are different types of bridges. There are bridges that have been built to ease traffic congestion in large cities; bridges have been built across rivers and the ocean to allow cars and trucks to travel from one place to another; bridges have been built to allow pedestrians to pass over highways safely. Bridges link places, so people are able to travel with ease between places. Goods can be carried on bridges and therefore trade is made possible.
What bridges were most common when they were first being built?
The early bridges that were built by early man were the log bridge. That is a a log was thrown across a river to cross.
