PPT Slide

At 10% impervious cover, the stream is slightly more visibly impacted. The stream shown here has approximately doubled its original size, tree roots are exposed, and the pool and riffle structure seen in sensitive streams is lost.

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Notes:

At approximately 10% impervious cover, the stream is slightly more visibly impacted. The stream shown here has approximately doubled from its original predevelopment size and evidence of changes includes downcutting, exposed tree roots, and loss of the pool and riffle structure.