Repair and reinforcement work at the Lauttasaari BRIDGE, Helsinki 2019-2020
Repair and reinforcement work at the Lauttasaari bridge, Helsinki 2019-2020 The project, in which the steel box girder bridge was repaired and reinforced in 2019-2020, can be shortly described in three words: a huge undertaking. M. Rautio Oy started to prepare the repair work for the bridge, originally completed in 1969, by measuring old structures and making as-built drawings based on the measurements. “Based on previous experience, we assumed that the welded seams shown in the original drawings and the bolt locations were probably not correct,” explains Markku Rautio. Their assumptions were correct, and so an intensive design