RECONSTRUCTING THE PATH OF THE GOWANUS WATERSHED’S HISTORIC STREAM… How can we get rainwater out of the sewers and back into the historical stream system ? We need more research…
POTENTIAL STREAM OUTFLOW SITE ArcHydro Gowanus Watershed Flow Map by Eymund Diegel, 2010, based on a 2004 Digital Elevation Model. The blue lines represent the way rainwater would flow if their were no buildings or street drains. Though hypothetical, the flow directions gives clues to the path of historic stream beds, major street regradings, and potential underground aquifer flows. The blue blobs represent “sinks” or pools in the contours where rainwater would tend to pond. These all represent “opportunity sites” for Green Infrastructure to improve the Canal’s water quality. I have found this model accurately depicts why my neighbor’s basement floods on Sackett Street (the old Bergen Creek watercourse)