A hole measuring six by five meters and a depth of about four meters was created in allotment gardens in Trzebinia (Małopolskie Voivodeship). This is another sinkhole that has been formed in this town in recent weeks. “There are no casualties,” firefighters said.
The firemen received a notification in this matter on Sunday before 11 am. The area is secured by two fire brigades. – There are no victims – said Hubert Ciepły, spokesman for the Małopolska fire brigade.
According to firefighters, the breach, which was created on Sunday, is six meters by five meters and about four meters deep. “Peace did not last long” – wrote the hosts of the Osiedle Siersza profile on Facebook and showed a photo of the latest sinkhole.
Previously, warning boards informed about the prohibition of entry, but the ban was not respected. The last sinkhole in this area appeared in early March.
Cemetery and stadium on the list of the most endangered
In mid-February, scientists, based on research, selected 11 points in Trzebinia at risk of discontinuous deformations. Among the areas most at risk and requiring immediate intervention are: the parish cemetery, allotment gardens, the stadium, and Górnicza Street.
Treatment works are already carried out near garages and forest areas in the Gaj housing estate. They will last about 20 weeks. Works are also underway on two properties (no. 3 and 5) at ul. Mining. The area of the parish cemetery has been closed.
The reason is too shallow exploitation
The problem of the formation of sinkholes is related to the shallow mining operations carried out in this area years ago and the rising level of underground waters.
The post-mining damage is caused by the former “Siersza” hard coal mine operating in this town since the mid-nineteenth century. In the years 1999-2001 the mine closed down. At the beginning, the exploitation was shallow, at a depth of 20-25 meters. Then the underground passages went lower and lower. The liquidators assumed that the voids left after exploitation would be filled with water. Over time, the water began to come closer and closer to the surface of the earth.
Main photo source: TVN24