Unique rehabilitation of an air trap in Kraków
In CIPP
Rehabilitation of an air trap under the Vistula River in Kraków, located at a depth of 7–8 m (1 m under the river bed), was an exceptional task for us. The Kraków based Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji S.A. requested us to rehabilitate a section of 277 m of a DN1500 diameter sewer. Using CIPP trenchless technology we inserted a 21 mm thick and 48-ton heavy lining into the air trap. It took a total of 4 hours to pull the lining into place, while the curing process (using UV light ) took 23 hours. The project’s value was over PLN 5.5 million.
Date: 2018
Investor: MPWiK S.A. in Kraków
Technology: CIPP
