English: View of boulder step pools installed in
Rock Creek, Washington, D.C. as part of a
stream restoration project. The pools raise the water level and allow fish (blueback herring and alewife) to swim over a partially-submerged sewer pipe which crosses the creek.)
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== {{int:filedesc}} == {{Information |Description={{en|1=View of boulder step pools installed in {{w|Rock Creek (Potomac River)|Rock Creek}}, Washington, D.C. as part of a {{w|stream restoration}} project. The pools raise the water level and allow fish...
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