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Official Website of the New York City Department of Parks & Recreation

Restoration Projects

Aquatic Habitat Creation

In sections of river or wetland that have been cleared of all natural and artificial debris, there is little remaining cover for aquatic organisms. This cover is important for hiding and staying cool in the summer, and for seeking refuge during high flows in periods of flooding. In-stream habitat is added to a stream by cabling large woody debris to the banks of the stream, by installing boulders randomly, or as a weir, or vane, to deflect flow to the center of the channel and promote local scour and hydraulic variability, and by planting woody trees that over time will supply wood to the channel and create over-hanging roots at the water’s edge.

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