In Poznań, a 1944 water main was renovated using the loose relining method. With only five excavations along a stretch of more than a thousand metres, road closures have been reduced, while at the same time, the costs associated with replacing the track and laying a new layer of asphalt have been reduced.
The work went ahead as planned.
Location: Poznań ul. Głogowska
Implementation period: 17.06.2019 – 14.08.2019
Scope of works: Renovation of the 1944 water main from ul. Śniadeckich to ul. Potworowskiego with loose relining method
Length of conduits undergoing rehabilitation: 1,080.53 m, made with only 5 trenches
Line diameter(s): DN450
Condition of pipes undergoing rehabilitation: Cast iron pipeline DN450 from 1944
Relining technology (what determined its choice): Loose Relining – most important aspects: speed, and length of sections without excavation
Key equipment mobilised for completion: 20 Tonne winch, a multi-purpose compact excavator that fit under the tramway traction
Biggest difficulties/challenges at the implementation stage/unusual solutions applied by the contractor: Maintaining full traffic flow on a national road such as ul. Głogowska, minimising damage to the trackbed and meeting the deadline (work during the summer holidays)
Contract value: 3 700 000,00 zł brutto
Investor: AQUANET SA
Contractor: TERLAN SP. Z O.O
