Evaluation of the Technical Condition of the “Fryderyk” Adit in Tarnowskie Góry for the Purpose of Eventual Revitalization

The “Fryderyk” adit (renamed ‘Kościuszko’ after World War II) is the last adit built in the area of Tarnowskie Góry, and was supposed to provide drainage for the area of exploitation of the “Fryderyk” mine. After the shutdown of the mine, the adit gained an important role in the water management of the area. The water from nearby sources flows into the river Drama through the adit. The long period of the adit’s existence and the processes occurring in its area have caused a progressive process of support degradation, which increases the danger of a loss of stability and a collapse of the roof. Allowing the collapse of the adit’s roof may cause surface depressions. The article presents the research results that show an evaluation of the technical condition and safety degree of the support for future failure-free usage. A range of activities that are meant to stop the natural degradation of the end section of the adit has also been suggested.