Old Stony Brook in Flood Overflowing
Into the Fens
How sewage on rare occasions gets
into the Fens: Sewage flows down Stony Brook Valley Sewer, while
stormwater is flowing down West Roxbury Low Level Sewer. When the flood
is too big, combined stormwater/sewage flows to Stony Brook Interceptor
and into Old Stony Brook Conduit. When it gets to the Fens Gatehouse #2
(Gatehouse for Old Stony Brook Conduit) , it overtops the weir on the
gate (which is now permanently shut).
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