alheim t1_je5rxaw wrote
Reply to comment by grambell789 in In Washington heights they tour up the roads to do work and revealed the old cobblestone beneath (184 & Pinehurst) by soylentgreenis
Generally, the primary manhole has a sort of metal ring/extension on it. The extension is about the thickness of the new course of fresh assault. It can be removed temporarily to lower the height of the manhole after the street has been cut
grambell789 t1_je5sjgi wrote
that makes sense.
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