![]() ![]() Measurements for 2022 show that the building has righted itself by an additional four centimeters since 2001.Īn assessment in 2005 declared the monument safe for the next 300 years. ![]() How much has the Leaning Tower of Pisa straightened?Įach year, the tower undergoes a tilt check-up. They installed drains to extract some of the water and level out the foundations. The team also realized that the water table beneath the structure was uneven, causing it to slant further during winter rains. The engineers removed earth from the higher side of the tower’s foundation and used steel cables to pull it upright. ![]() Instead, they opted for a costly soil extraction project. The committee concluded that modifications to the fragile foundations could exacerbate problems so common solutions like cement injections had to be rejected. How is the Leaning Tower of Pisa’s tilt being corrected? The monument was closed to visitors, and in 1993, civil engineer Michele Jamiolkowski convened an international board to intervene. In the 1990s, it was deemed prudent to begin a stabilization project. gettyīut the famous tilt was once considered perilous. Michele Jamiolkowski, an engineer of Polish origin who adopted Italian nationality, coordinated an international committee to rescue the landmark between 19.Visitors standing in the shadow of the Leaning Tower of Pisa are in no imminent danger. Thanks to this system, we recovered half a degree of lean," he said. "We removed soil by drilling very carefully. "We installed a number of tubes underground, on the side that the Tower leans away from," said Cela, technical director at the OPA, which looks after Pisa's main monuments. The tower was closed to the public in January 1990 for 11 years over safety fears, as its tilt reached 4.5 meters (15 feet) from the vertical, threatening to turn it into a pile of rubble. The medieval bell tower, a symbol of the power of the maritime republic of Pisa in the Middle Ages, has leaned to one side ever since building started in 1173 on ground that proved a little too soft. Fortunately for the millions of tourists who come here every year, the 57-metre (186-feet) tower remains beautifully askance. The gravitationally-challenged landmark is leaning less after years of ambitious engineering work. ![]()
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