Toggenburger + Co AG, a Swiss crane service provider, successfully used the Tadano CC 38.650-1 lattice boom crawler crane to lift and place a new 230-tonne Aabachbrücke bridge in Niederuster, near Zurich. The project involved not only placing the new bridge but also removing parts of the old, demolished bridge, with sections weighing up to 150 tonnes.
Due to the sensitivity of the new parallelogram-shaped bridge, Toggenburger employed strand jacks to carefully control load distribution and avoid damage to the structure. Transporting the crane to the site required 20 trucks, and a team of four assembly technicians and an AC 140 assist crane assembled it in just two and a half days, configuring it with a 66-meter boom and 540 tonnes of counterweight.
The complex lift required detailed planning, including extending Bongossi mats to allow the crane to maneuver into position. The CC 38.650-1 lifted the bridge’s gross weight of 250 tonnes, including slinging gear, over trees at a 31-meter radius before setting it precisely on its supports. The strand jacks were also crucial in adjusting line lengths during the lift, ensuring the bridge was positioned at the correct angle.
With six Toggenburger employees managing the operation, including two crane operators, the lift was completed safely, precisely, and on time. The project highlighted the capabilities of the Tadano CC 38.650-1 and the expertise of the Toggenburger team in handling complex lifts.
