The 158 feet Garisenda tower was built in the 12th century, during a boom period of the northern city's history, but two centuries later it had already begun to tilt.The towers in Bologna date back to the 12th century.
Late last year, the streets around the Garisenda were temporarily sealed off as scientists monitored the structure for evidence of movement and cracking, concluding that it was at "high risk" of collapsing.Bologna's mayor, Matteo Lepore, announced on Wednesday that pylons and cables previously used to save the tower in Pisa would be deployed along with adapted steel scaffolding to help prevent it from breaking apart.
Once the two steel pylon structures used in Pisa are erected and adapted to Garisenda, consolidation work will begin on the tower's masonry, including injections of a lime-based mortar mix compatible with the one used in the building's original construction, according to a municipalityThen cables connecting the pylons to scaffolding attached to the tower would be tightened, a procedure that would decrease stress levels at the tower's base.
While less well known than its counterpart at Pisa, the Torre Garisenda has long been a tourist attraction in Bologna. Its unusual angle earned it a mention in Dante Aligher's 14th-century poem. Alongside it, the taller Torre degli Asinelli is also a tourist attraction, with a more modest lean of 1.3 degrees.
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