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How does urbanization impact surface roughness and the time of concentration?

April 26, 2017concentration impact roughness time urbanization

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How does urbanization impact surface roughness and the time of concentration?

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One of the most significant effects of urban development on flow velocity is less resistance to flow. That is, undeveloped areas with very slow and shallow overland flow through vegetation become modified by urban development: the flow is then delivered to streets, gutters, and storm sewers that transport runoff downstream more rapidly. Travel time through the watershed is generally decreased.