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I love this so much: "Sewer lines discharged into the water, and much of the waterway had been diverted from its natural path.

This years-long effort to detoxify the #stream, led by the City of #Pittsburgh and the U.S. Army Corps of Engineers, included rerouting the stream channel by adding curves and ripple rocks to slow down the water and the rate of #flooding.

A decade and a half later, #fish and #beavers have continued the work of improving the surrounding #wetland environment."

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