Old mine the size of a small car appears in Redruth garden
The chamber is anticipated to be 400 feet deep and the owners home has been deemed unsafe for now.
The chamber is anticipated to be 400 feet deep and the owners home has been deemed unsafe for now.
The sinkhole appeared on Seaton Beach on Tuesday 18 May.
Highways England says engineers are being assembled to carry out repair work as 'a matter of urgency'.