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Old Posted May 12, 2014, 4:05 PM
mt_climber13 mt_climber13 is online now
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Quote:
Originally Posted by colemonkee View Post
It's crazy that they build those ramps then demolish them during construction. Something that would never be done in the US due simply to the cost. I wonder if they recycle those materials or just throw them out. Seems like a huge wasted if it's the latter.
When building the new Bay Bridge in San Francisco, two huge temporary freeway decks were built at different times to accommodate traffic flow. The bridge was completely shut down twice for an entire weekend so the ramps could be shoehorned into place while the old ramps were torn out. Then permanent ramps were built for the final phase, and the temporary ramps were destroyed. Quite a lot of labor, engineering, and materials for something so temporary, but necessary.
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