Realization of the dry pipe from TVL pipe in total length of 3488 m together with 36 pcs of tunnel hydrants and 2 pcs of tunnel air ducts. Furthermore, the following were implemented: outlet pipe, water supply to the pumping station, installation of reinforced concrete fire tank, metering shaft, fitting shafts and water meter shaft. The contract also included the supply of the technology for the pump house and the wiring.