Headline: Florida Skyscrapers Sink: Study Finds Significant Land Subsidence in Miami Beach Area
Byline: abr/zlf
Subhead: Tall buildings along Florida’s coastline are experiencing land subsidence, with some dropping by up to 8 cm since 2016, according to a recent study by the University of Miami.
Article:
In a revelation that has raised concerns among residents and property owners, several prominent skyscrapers along Florida’s coastline have experienced significant land subsidence, a new study by the University of Miami has found. The study, titled "InSAR Observations of Construction-Induced Coastal Subsidence on Miami’s Barrier Islands, Florida," examined numerous large buildings constructed along Florida’s barrier islands, including Miami Beach, Surfside, Miami Beach Harbor, and Sunny Isles Beach.
Conducted over seven years using a sensitive radar device called Interferometric Synthetic Aperture Radar (InSAR), the study observed that 35 buildings had subsided between 2 to 8 centimeters. The Porsche Design Tower, Faena Hotel, and Trump Tower III are among the affected buildings.
"Our research documents vertical displacement ranging from 2-8 cm, impacting a total of 35 coastal buildings and their surroundings," the study stated. "Approximately half of the settling buildings were constructed after 2014, and most continued to settle over time."
The primary causes of subsidence are attributed to Florida’s inconsistent limestone bedrock and natural groundwater depletion. However, the study also suggests that construction activities may exacerbate geological deformations that support these buildings.
The long-term concern for these structures lies in uneven settling of the soil beneath and around them, which can lead to internal stresses and potential structural damage. "While these tall buildings in South Florida are designed to settle several dozen centimeters over their entire structure, differential settlement can cause internal stressors that may result in structural damage," the study warned.
The study’s findings serve as a stark reminder of the challenges posed by coastal development on vulnerable geologies and the importance of ongoing monitoring and mitigation strategies.
