Archive for the ‘Sinkholes’ Category
A crane retrieved a BMW from a sinkhole that formed in a Toronto driveway
after a water main break.
The sinkhole started forming in a driveway outside a condominium townhouse near Warden Avenue and Sheppard Avenue East.
The BMW began to sink into the ground, starting with its back wheels.
Several hours later, a crane arrived on scene and lifted the vehicle out of danger.
A water main break was
the culprit that caused the sinkhole to form.
It took the city about two hours to shut off the water supply, a resident told CBC News. …
Aug 18, 2014
More than a year after a 6-year-old boy was almost buried alive in a popular sand dune, more holes are appearing and scientists still aren’t sure why.
The 126 foot sand dune, called Mount Baldy, in Indiana, remains closed as new potentially dangerous holes are appearing.
Three geologists arrived last week with high tech equipment in the hope of using radio waves and core samples to see if they can determine what’s causing the holes. Their plan? To eventually build a three dimensional map of the dune to try and see it’s internal structure.
Most holes have been about 2 inches wide and 3 feet deep, but the latest hole, discovered last week, was 7 inches wide and 4.5 feet deep – making it the deepest to date.
The geologists say what they are finding is changing what they thought they knew about the properties of sand dunes.
One of the theories is that the holes could be connected to decaying trees or rotting man made structures buried by the dunes throughout the years.
Hopefully scientists will have soon have some answers.
The $90,000 study funded by the National Park Service calls for an initial report in three months with a final report in a year.
Aug 12, 2014
Hurricane Bertha left its final mark on the UK landscape yesterday after a giant sinkhole opened up in a water logged road in Scotland, nearly swallowing a herd of pigs.
The rain drenched strip of road near Inverness caved in after the storm battered northern Britain for a second day.
Water could be seen gushing into the hole as a herd of pigs looked on, clearly in a state of shock following their narrow escape.
Further chaos was caused after the nearby River Dulnain burst its banks, which led to four horses being stranded on a tiny island as flood waters surrounded them.
However photographer Mark Hamblin said the horses were able to make their escape unharmed when the water subsided after a few hours.
This pipe truck is the latest victim of China’s ‘swiss cheese’ landscape, swallowed by a 40-square-meter, 6-meter deep sinkhole in Guangxi.
Published on Aug 7, 2014
Published on Aug 5, 2014
July 31, 2014
The sixth-tallest building in the world is being built in Seoul, South Korea, but a strange geological phenomenon is threatening the site, leaving the construction team baffled as it gets closer to finishing it.
The AP reports that a bunch of strange, small sinkholes are popping up out of nowhere in neighborhoods nearby.
The Korea Times tweeted a picture of one of the sinkholes back on July 21:
People in Seoul are alarmed by the increasing number of “sinkholes” appearing on streets: http://t.co/mTKGwG0wv5 pic.twitter.com/JgeZ2DHY0q (but! “Sorry, that page doesn’t exist!”)
These strange earthly issues are causing safety concerns, threatening the construction. The AP says that 70 of 123 floors have been built, but now locals living in residential neighborhoods nearby have started seeing sinkholes on their roads and became very worried.
So far, at least one official at the skyscraper’s construction company, Lotte Moolsan, is claiming that the sinkholes are too far away to be caused by the construction…
often caused by groundwater and erosion. The USGS describes them as “an area of ground that has no natural external surface drainage — when it rains, all of the water stays inside the sinkhole and typically drains into the subsurface. Sinkholes can vary from a few feet to hundreds of acres and from less than 1 to more than 100 feet deep.“
On top of that, a lake that the tower overlooks seems to be getting smaller, and nobody knows why that’s happening either. Lotte Moolsan says they’re pumping water into the lake to keep the levels up. It’s dropped from about 16 feet to 14 feet.
When it’s completed, the tower is set to be just a little taller than One World Trade Center in Manhattan.
Small Sinkholes Near Tower Construction Site in South Korea Draw Concern
For the developers of the world’s sixth tallest building near Seoul, a mysteriously shrinking lake and the appearance of small sinkholes in residential neighborhoods couldn’t have come at a more inopportune time.
Plans for the super-high tower first surfaced in 1995 and it took another 15 years to get a green light after the Air Force objected to it as a risk to a nearby military airport used for VIP flights.
Now it faces new doubts as South Korea reels from the Sewol ferry sinking in April that killed hundreds of teenagers. The disaster provoked a scathing reassessment of an ethos of economic progress first, safety last that was largely unquestioned over several decades as the country rapidly industrialized.
In June and July, residents in Songpa neighborhoods surrounding the development reported the appearance of holes on at least two roads, which quickly spread on social media.
One about 500 meters from the construction site measured half a meter wide and 20 centimeters deep. There were claims that construction was the cause of falling water levels in the lake the tower overlooks, from a depth of 5 meters to 4.3 meters. …
People in Seoul are alarmed by the increasing number of “sinkholes” appearing on streets
Published on Jul 21, 2014
Mysterious sinkholes appear across Seoul
Sinkholes have appeared across Seoul, raising safety concerns. Yet investigators are struggling to explain what exactly caused them.
After three sinkholes were found in Songpa, southern Seoul, where the Lotte World Tower is under construction, some others were found in other parts of the nation’s capital.
The latest one yawned open Thursday in front of the National Assembly in Yeouido.
The hole, about one meter wide and one meter deep, is only 2 meters away from another one, which was discovered last month.
The Yeongdeungpo Police Station immediately started an investigation as soon as the first one was found on June 19. However, what they have found so far is little.
“We do not know the cause yet,” an officer from the police station told The Korea Times. “In cooperation with Seoul Metro and Seoul Metropolitan Government, we investigated the problem and
only found that the holes have nothing to do with sewerage.”
The officer said the investigators are now looking more into water supply facilities and communication pipelines.
Some part of a roadway near Jeungmi Station, western Seoul, also collapsed on June 17, creating a hole 1.5 meter wide and 1 meter deep. Officials from Gangseo Police Station are still trying to figure out what caused it.
A sinkhole refers to any hole in the ground created by erosion, drainage of water or human activity.
For the holes in Songpa, where the Lotte World Tower is being built, some experts believed that
the construction is responsible for creating the sinkholes.
However, the explanation is not enough for those created in other parts of Seoul.
No major incidents caused by the holes have been reported.
August 14, 2014
State highway workers have blocked off a big sinkhole that developed this week on U.S. 61 near Natchez Regional Medical Center.
The Natchez Democrat reports the hole is nearly 15 feet wide and 25 feet deep.
The Mississippi Department of Transportation has blocked it off with orange barrels, and workers will start repairing it after engineers are confident it won’t continue to grow.
A department engineer, Albert White, says the spot started as a small depression and grew into a sinkhole Tuesday night. He says fixing the hole could take several weeks.
August 15, 2014
A largely hidden sinkhole developing in Hollygrove has been barricaded by the New Orleans Sewerage and Water Board while workers attempt to figure out what’s causing it.
A worker on site Thursday (Aug. 14) said that the Water Board ran smoke through a 30-inch sewer main running under the road to see if it was leaking. A leaking pipe that large
could suck dirt out from underneath the roadbed, leaving the void now threatening to collapse the street.
However, the line did not appear to be broken, leaving the workers to wonder
if the adjacent storm-drain lines had failed, which could also cause underground erosion.
The worker said another crew was scheduled to return to the site Friday or Saturday for further evaluation. If the cause can’t be found, the street will have to be excavated to find and repair the problem, he said.
… From the surface, the sinkhole looks more like a pothole. The opening on the surface is only about 3-feet long. However, underneath, there’s a small cave large enough for a child to stand in. The erosion extends about halfway across the street.
August 11, 2014
From the surface, the hole at the intersection of Joliet and Olive streets in Hollygrove doesn’t look like much, just a cone and a sign to keep drivers from losing a wheel.
Similar potholes are marked across the city.
But this pothole, about three feet long and two feet across, is more like an iceberg: What you can see from the surface belies something much larger underneath.
A peek inside the hole shows a cavern extending about halfway across the street, deep enough in part of it for a child to stand.
An area about 8 feet across appears to be covered by little more than an unsupported asphalt shell.
Aug 14, 2014
A huge sinkhole has closed down a Beaufort intersection.
Town officials say crews were doing storm water maintenance early this morning and they noticed a small sinkhole.
As they began to unearth it they found a big mess underground. The intersection of Live Oak and Anne streets is shut down.
The hole right now is about 20 feet long by six feet, and is about 5-1/2 feet deep.
Officials say the sinkhole happened
after a leak in a 10-inch storm water line. Over time, that leak scoured out the soil around it. …
… The Town of Beaufort’s Public Works Department has seen a few sinkholes around town but this was the biggest one they’ve had to restore.
“We had some small ones. Nothing to this scale. Usually you can just put some cold patch in it and that will take care of it temporarily but this is the first large one that we’ve had since we had all the rain,” said Public Utilities Director Donovan Willis.
Willis says the recent heavy rainfall could be part of the reason the sinkhole showed up.
Womble says he’s seen the effects of the rainfall starting a few weeks ago. He says before the sinkhole appeared, Live Oak Street was flooded on and off as a result of the heavy precipitation.
“The rains we had were so heavy but I’ve never seen it flood like that. I’ve been here for going on 3 years now and I’ve never seen flooding like we had a couple weeks ago,” said Womble.
An older infrastructure could also be part of the reason the sinkhole formed, according to Willis.
As for Womble, he’s not too concerned about the gaping hole outside his front door.
“This is all Beaufort. Its old stuff so replace everything over the next couple years I guess,” said Womble.
The collapsed storm drain will be replaced …
Published on Jan 25, 2014
I reckon my whole front wheel could have fit in it… pretty deep too.
Walcott St x Beaufort Mt Lawley
Aug 13, 2014
The owner of a local tanning salon pulled a customer through the driver’s window of her car as it was being swallowed by an expanding sinkhole in the parking lot in front of the business.
… she heard a “thunk” and realized the car was tilted and its wheels were spinning when she accelerated.
Within minutes, the car sank so much that her door could not be opened. She called the salon’s owner who came outside, reached a hand into the vehicle and helped her out, Ms. Huddleston said.
“Then we watched the car sink, little by little,” she said.
A collapsed stormwater management pipe that is either 48 or 60 inches in diameter caused the sinkhole…
… Around 4 p.m. the hole that swallowed the Saturn opened. After the ground began sinking, a smell of gas was reported in the area. Nearby businesses were evacuated and utilities were cut off at the street, the detective said.
About an hour later, a second, smaller sinkhole appeared near the neighboring BJ Nails & Spa.
Within three hours, a small bridge of asphalt and earth between the holes dissolved, creating one, gaping sinkhole that was nearly 40 feet long and 10 feet wide. The depth of the sinkhole was unclear, as it was filled with water. Ms. Huddleston’s car was completely submerged. …
She said she was stunned.
“It’s a complete non seq. There is no point of reference for that in life,” she said.