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Maillet said one frequent sinkhole source is old septic systems that were not properly shut down. With depths that can be more than 10 feet, they can be dangerous and need to be filled. And, yes ...
Sinkholes can range in size from a few feet wide to hundreds of acres, and anywhere from 1 to 100 feet or more deep. Sinkholes can swallow up cars, parts of roads and even houses.
Thus, the total volume of the silts and clays is reduced, resulting in the lowering of the surface. The damage at the surface is much greater if there is differential settlement, or large-scale features, such as sinkholes and fissures. Aquifer compaction is a significant concern along with pumping-induced land subsidence.
NJDOT crews are evaluating how to repair a sinkhole on I-80 eastbound near Exit 34 in northern New Jersey. ... A 511nj.org live feed of I-80 looking west shortly after 5 p.m. showed traffic moving ...
In modern times, areas known to have quick clay deposits are commonly tested in advance of any major human development. It is not always possible to entirely avoid building on a quick clay site, although modern engineering techniques have found technical precautions which can be taken to mitigate the risk of disaster.
The City of Chicago then gave permission to install the new pilings 3.5 feet (1.1 m) south of the old pilings. The crew members who began work at the site did not know that beneath the river was an abandoned Chicago Tunnel Company (CTC) tunnel that had been used in the early 20th century to transport coal and goods. One of the pilings on the ...
Sinkholes are not always associated with mining. In 2013, a man was killed when a sinkhole opened up beneath his home in central Florida, where the porous limestone base gives rise to thousands of sinkholes every year. The most damage from sinkholes tends to occur in Florida, Texas, Alabama, Missouri, Kentucky, Tennessee and Pennsylvania.
A massive sink hole stretching 100 feet opened up in an Illinois park on Wednesday, swallowing a light pole in the middle of recreational fields and leaving a gaping, deep hole in its wake.