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The bridge over the stream has many arches.Why might this sort of bridge add to the flooding problem upstream?

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The bridge over the stream has many arches.Why might this sort of bridge add to the flooding problem upstream?

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  1. The peirs that support the multiple arches restrict the flow of water so during flooding the water "backs up" upstream of the bridge.

    bye for now.


  2. In a flood, debris coming downstream can get caught at the bridge and restrict the flow under it, thus augmenting flooding upstream.

  3. idk, wind
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