According to the report of the official group in charge of supervision of this construction, the Tower has been straightened for 2,5 centimetres in the period 2001 – 2013. Although 2,5 centimetres are not so much, for the supervisors of the Tower, that means a lot. Since 1992, the inclination was reduced from 4,5 to 4,1 meter due to “saving intervention”. The first “saving intervention” was conducted by the professor Jamiolkowski, and it included girding of the first floor of the Tower with 18 steel cables, which was followed by replacement of the underground concrete blocks.

The last intervention was carried out in January, 1991, to be more precise, the land was dug out under the Tower, which resulted in deeper barging consequently reducing the inclination.  The last reduction of the inclination of the Tower in the last 12 years is a real victory of the experts, who anticipate that the Tower will be safe at least in the next 200 – 300 years. Also it was planned that Tower keeps the inclination which actually made it the world attraction.