Renovation of the Right Bank Collector I in Poznań

As part of the “Renovation of the Right Bank Collector I in Poznań” task, we are renovating sections of a reinforced concrete combined sewer in the capital of Greater Poland. A total of almost 2.7 km of canals and 37 sewage chambers will be modernised. Due to the broad scope of the task, the implementation of the project has been phased.

This is the largest renovation investment currently underway in Poznań County.

Location: Poznań

Implementation period: 11.09.2018 – 11.01.2020

Total length of sewer sections rehabilitated: 2,686.9 m
Conduit diameters: Stage I :

• Rectangular duct 3,200/2,600 mm (549.5 m)
• Circular sewer DN2500 (729 m)

Stage II:

• Egg ducts: 1000/1720 mm (513.4 m); 900/1,500 mm (149.5 m); 800/1,380 mm (63.2 m); 1000/1,500 mm (191.6 m); 750/1,150 mm (490.7 m)

Total number of sewer chambers rehabilitated: 37
Average foundation depth: average approx. 5 m, min. approx. 3.5 m, max. approx. 8 m p.p.
Renovation technologies: relining with short pipe modules, CIPP, construction chemistry

Contractor: Consortium of Terlan sp. z o.o. (leader), BLEJKAN S.A., MCC S.A.
Principal: AQUANET SA
Contract value: PLN 36 863 099.98 gross