The current phase of Dundas street expansion in Oakville Ontario project includes replacing existing north bridge across the Sixteen Mile Creek. The new bridge includes 4 concrete piers with a maximum height of 32 metre. Piers have a constant thickness of 2.5m but their width flares out from 9.5m up to 18.3m. Inside each pier there are two hollow shafts 1.25m x 3.75m extending from bottom of pier to the hammer head. Piers are required to have architectural concrete finish. The PERI climbing scaffold systems CB 240 together with VARIO GT24 wall formwork provide the solution for construction of piers. The 2.4 metre wide concreting platform deck provides ample space for workers without any tripping hazards. End-to-end guardrails are attached to platform providing a safe work environment. The climbing scaffold is firmly connected to VARIO GT24 wall formwork.