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The image shows two separate bridge constructions with associated build dates, costs, and dimensions, with each having a diagrammatic cross-section indicating the layers present under or around the bridge. The top bridge has a build date of 1986-1998, with a cost of $555 million; it spans 2.2 kilometers and has a depth of 1.5 meters, with a layer labelled 'sand' depicted beneath. The bottom bridge has a build date of 2002-2006, with a cost of $1.1 billion; it spans 3.6 kilometers and has a depth of 2.5 meters, with a layer labelled 'stone and clay' depicted beneath. Both cross-sections show four types of vehicles on the bridge, and three structures with semicircular rooftops above the bridge.
Given the complexity of the image, the above description may not be entirely accurate.
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The given maps illustrates 2 underground tunnel systems that was built in 1998 and 2006 designed for cars.
Overall, the construction of new tunnel doubled in a price, third road lane added, high and length increased, the tunnel became straighter and time spent for construction decreased threefold.
First image shows us the tunnel that was built between 1986 to 1998. Cost of the tunnel was 555 million dollars, it was 1,5 meters high and 2,2 kilometers long. Additionally, it had 2 rows for the cars and soil was made by sand.
Second image present the new underground way that was constructed from 2002 to 2006, which is three times faster than the previous tunnel. It costed 1,1 billion dollars, additional third car row was added, and high was 2,5 meters, length 3,6 kilometers. Moreover, soil in this occasion was made from stone and clay.
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