June 18th – I don’t really want to think about what this valve does…

It opens and closes a drainage culvert from the M6 toll. Dotted along the motorway’s length are drainage settlement lagoons that catch surface water, and allow the pollutants (like road grit, rubber particles and debris) to sediment out before flowing into local streams and drains. In the event of a spill of serious pollutant, this valve would be closed to hopefully prevent the damage from extending to the local hydroecology. ¬†Sadly, the culvert it closes has a tiny capacity, and in a rainstorm would overtop into the lagoon anyway.

Cheap engineering lip-service.

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