SE2932 : Sewer syphon?

taken 9 months ago, near to Beeston, Leeds, Great Britain

Sewer syphon?
Sewer syphon?
There is one of these features each side of the M621 at this point. The large concrete manhole slab suggests some kind of large chamber beneath the surface box. One possibility is that they are interceptors for motorway drainage to prevent oil getting into the sewerage system. Alternatively they may represent the ends of an inverted syphon where construction of the motorway embankment interfered with an existing trunk sewer.
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SE2932, 589 images   (more nearby )
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Date Taken
Saturday, 10 March, 2018   (more nearby)
Monday, 12 March, 2018
Geographical Context
Waste, Waste management 
Subject Location
OSGB36: geotagged! SE 2954 3201 [10m precision]
WGS84: 53:47.0149N 1:33.1898W
Camera Location
OSGB36: geotagged! SE 2955 3201
View Direction
Northwest (about 315 degrees)
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Image Type (about): geograph 
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