The lowlying parts of Norwalk near the Perry Avenue bridge were especially badly hit during the 1955 flood of the Norwalk River. Consequently, the reconstruction effort was very agressive in channelizing the river at that point and further south. Since 1980, the US Geological Survey has made water-quality measurements about 8 to 12 times per year just north of the Perry Avenue bridge. Some of the measurements can be retrieved at this site (search for "water quality" at station 1209710).

Below the Perry Avenue bridge, the Silvermine River makes its appearance at Deering Pond, a body of water that was cut in two, forming "East" and "West" ponds, by the new Route 7.



View of the Norwalk River, north of the bridge
at Perry Ave. Water quality measurements have
been recorded here since 1980 by the USGS.




Major damage at the Roberk Company plant
near this spot after the 1955 flood.




Deering Pond East and the block of condominiums
that lie along its northeastern shore.




The Dresden Lace Works of 1903, now the Muller
Industrial Park, overlooking Deering Pond East.




Deering Pond West, seen from the Broad Street
Bridge. Here the Silvermine River joins the Norwalk.


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