Pinner school faces closure after chalk mine discovery

Pinner Wood SchoolImage copyright
Harrow Council

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Pinner Wood School might never reopen, the council has warned

A junior school is facing an uncertain future after a chalk mine was discovered beneath it.

Geological surveys have found an “unacceptable risk” that the ground below the Pinner Wood School, in Pinner, north-west London, could become unstable, Harrow Council said.

Pupils of the primary school have been told they will not be able to return to the site until further notice.

But it is also possible they will never be able to return to their school.

Harrow Council said classes would relocate to other educational settings for the summer term while more tests were carried out to assess the site’s condition and safety.

Image copyright
Harrow Council

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The recently discovered chalk mines are likely to date from about 1800

Laser imaging of the previously uncharted and unknown tunnels reveal they stretch beneath the school buildings and that mine roofs have collapsed in certain places.

But the surveys could take months and it is possible the ground underneath the school will be deemed so unsafe that the school can never reopen in its current location.

Image copyright
Harrow Council

Image caption

Geological surveys have shown the ground beneath the primary school to be unstable

The leader of Harrow Council, Sachin Shah, said: “With the evidence we have discovered in the past few days, we are certain that this is the right decision.

“We would like to stress that the imminent risk to the school buildings is believed to be small.”

Dr Clive Edmonds, partner at Peter Brett Associates, which carried out the geotechnical surveys, said it was likely that the mines dated from the early 1800s.

“As is common for chalk mines of this age there are no mine abandonment plans and the mine workings are in a state of breakdown, as confirmed by the laser survey, posing a hazard to surface stability.”

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