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Sinkholes - Se1 - Ep01 - Buried Underground HD Watch [Full Movie] [English Subs]Full EP - Full
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00:04sinkholes they can be sudden catastrophic and deadly open the door there was no floor there
00:12everything was gone swear I could hear him hollering for me Jeremy helping and the numbers
00:18are rising all over the world even in Britain man just said that sinkhole in the back garden
00:26you've got to leave got to evacuate you've got 15 minutes to pack a bag and go with holes hitting
00:30the headlines when they did finally get to the bottom of the hole it was 80 feet deep time and
00:36time again but some places suffer more sinkholes than others this is what it's like to live in a
00:48sinkhole hotspot you're actually seeing people's whole lives really floating on the surface can't
00:55help but feel for people that are going through that on the night of the 9th of November 2016 Ripon
01:19Fire Service's blue watch was called out to an emergency something was wrong on Magdalene's Road
01:29Doreen Ellis was one of the first to get a knock on the door we were in bed sleep and
01:37there was a big
01:38knocking knocking on the front door hi sorry to disturb you and we called out to a sinkhole around
01:43the back man just said that sinkhole in the back garden got to evacuate you've got 15 minutes to pack
01:48a bag and go this is the colossal damage of a sinkhole which swallowed up gardens on Magdalene's Road in
01:58Ripon late on Wednesday night the ground had opened up beneath four gardens the hole was 30 feet deep and
02:07big
02:07enough to swallow a tennis court Peter Lister and Julia Osler were away when the sinkhole struck so
02:15the first they knew about it was when they saw it on TV we came up to the property to
02:22find the police
02:23the fire brigade the road blocked off because the sinkhole was still still moving I was shocked it was
02:31bigger than I expected it to be four homes were perilously close to the edge of the sinkhole and
02:37no one knew how much closer the hole might get all the garden next door was a wildlife garden and
02:43she
02:43lost all of that one of the garages had fallen in several of the outhouses had fallen in the trees
02:50the
02:50bushes the fences all fell into it the woman that lived up there was very lucky to be alive sure
02:56she
02:56came out my back garden went down the step I put one foot down and then I realized that the
03:02steps
03:03were moving I turned around and grabbed hold of a pole pull myself back up and and went quickly back
03:12into the house I think she's the luckiest woman alive I've never known anyone come so close ten houses on
03:20Magdalene's Road were quickly evacuated but the hole was still growing after about the second the
03:27third day we started getting concentric rings which actually went all the way up to the corner there
03:35where they where the bin is there but started growing and growing as days went by and growing and
03:41growing with the crack spreading many residents feared the worst this was the kind of thing that normally see
03:49on television you can see gravel dirt and roots inside this perfectly symmetrical sinkhole happening
03:57in another part of the world stories of holes opening up in faraway places swallowing people cars and
04:05buildings the building was collapsing around us our room itself is over 100 feet underground now
04:14Rippon was in the news and for the second time in two years because in 2014 another hole had opened
04:22up just around the corner in Magdalene's close and that one split a house in two last night a 25
04:31foot
04:31sinkhole opened up under this home in North Yorkshire and there was no time to stand and watch it actually
04:37started coming away I could hear it coming away above my head it was just creaking and cracking and
04:43fumbling and the couple living here were lucky because this hole sank slowly giving them time to get
04:50out but when sinkholes collapse suddenly under houses the results can be deadly Florida is the sinkhole
05:01capital of the world and Sefner in Hillsborough County lies right in the middle of so-called sinkhole alley
05:09a place that's notorious for one of the most shocking sinkhole disasters of recent times
05:19February the 28th 2013 was an ordinary day in this quiet town near Tampa Jeremy Bush had just returned
05:27home from work when my room started eating and heard his loud loud noise sound like a train or a
05:35car
05:35something's hit the house the sound Jeremy had heard was the concrete floor of his brother's bedroom
05:45collapsing I ran towards my brother's room open the door and there was no floor there everything was gone
05:55Jeremy's wife Rachel and her aunt Janelle wicker were also in the house you heard him screaming help and
06:03we ran out down the hallway a sinkhole had swallowed everything in the room including 37 year-old
06:12to Jeff Bush
06:14all you could smell in the house was like fresh dirt everything was just like churning on top of it
06:20I'd jump in the hall swear I could hear him hollering for me Jeremy help me
06:26there was I was digging with my hands
06:31there wasn't nothing I can do
06:34as Jeremy tried to save his brother Rachel dialed 911
06:38I need an ambulance and the top buddy stuck underneath the house the house just fell through
06:44okay and what happened to the house
06:47the bedroom floor just collapsed and my brother-in-law is in there he's underneath the house
06:52the emergency services arrived within minutes but time was running out for Jeff with the hole expanding a police officer
07:00pulled Jeremy from the room
07:01as I'm getting out of all the holes collapsing
07:09there was nothing I could do
07:14the police and fire crews brought in specialist equipment to search for Jeff Bush and try to save him
07:21all the family could do now was watch and wait
07:40what happened to the house the bedroom floor just collapsed and my brother-in-law is in there he's underneath
07:46the house
07:48this 911 call was made moments after 37 year old Jeff Bush was swallowed by a sinkhole
07:55the hole had ripped open right underneath his bedroom
08:00in a final attempt to locate Jeff and pull him out the police sent in specialist equipment
08:07while Jeff's brother Jeremy watched on with his wife Rachel and her aunt Janelle
08:12the hole opened up and took their equipment down the camera and everything
08:16so then everything stopped because the hole was still growing
08:21nobody did anything
08:24no one really even tried to rescue my brother with me
08:36he's still down there
08:48the memory of Jeff's death is hard to live with
08:52but they also live with the knowledge that things could have been even worse
08:57too much prior to this
08:58my daughter was in that room
09:01so
09:02it could have been all of us at one point
09:04and not just him
09:05yeah
09:12the house was later demolished along with two houses on either side
09:17now there is nothing but fenced off wasteland
09:21a wasteland that hides the sinkhole that swallowed Jeff Bush and buried him alive
09:26that is my brother's last resting place
09:29I came out here on his anniversary when it happened
09:32I come out here on his birthday
09:35it's hard when I do it man
09:39I love him
09:41I wanted to know that I tried everything I could to get him out
09:45do everything I could
09:52Florida is full of holes
09:55with new ones appearing every week
09:57so in this part of the world a sinkhole expert is always busy
10:02David Wilshaw is a British geologist living in Florida
10:05in the 13 years he's been here
10:07he's worked on more than a thousand sinkhole cases
10:11well if you want to see a great example of a sinkhole
10:15here in Florida
10:16the Devil's Millhopper Geologic State Park
10:19is a place to come
10:20because here we have a monster of a sinkhole
10:23it's 500 feet across
10:24120 feet deep
10:30the Devil's Millhopper
10:32the Devil's Millhopper
10:32gets its name from the gruesome remains that can be found here
10:35because when this ancient sinkhole formed
10:37it filled with the fossils of strange beasts and creatures
10:42when the early explorers came down here
10:45they found this Millhopper shaped hole in the ground
10:48and at the bottom of it was a bunch of bones and teeth
10:52particularly sharks teeth
10:53with a lot of
10:55sabre-toothed cats
10:56mastodons
10:57things of that nature
10:57and those bones all washed down
10:59to the bottom here
11:00where the Devil had been doing his evil work
11:03and these are the
11:04the remains of
11:06poor creatures that lived in the past
11:07and they were subjected to the Devil's torment
11:10this is kind of like the River Styx if you like
11:12the pond at the bottom
11:14which is always present
11:19the boulders at the bottom of Devil's Millhopper
11:21are made of limestone
11:22the rock that lies beneath the hole of Florida
11:26it's a hard rock
11:27but it dissolves in acidic rainwater
11:31over time
11:32water flowing through the cracks
11:33eventually forms caverns underground
11:36and when a cavern can no longer
11:38bear the weight of the rock and soil above
11:40it collapses
11:41and forms a sinkhole
11:44this is not by any means the largest sinkhole in Florida
11:47there have been historically enormous sinkholes
11:49some of the very large lakes we see in Florida
11:51are extremely large
11:53miles across almost
11:54you know so they can vary in scale
11:57and the scale depends upon
11:58how big the hole in the rock is
12:00into which the soil can move
12:02if it's a big enough hole
12:04and it can take enough of the soil that sits above it
12:06then you're going to get a very large sinkhole
12:16Rippon in North Yorkshire
12:18has the same kind of rock problems as Florida
12:20so all around there are signs of sinkholes past
12:25if you look to the left you can see in the field there
12:27there's some depressions
12:28which when you look at the mapping relate to a historic events
12:34Ian Spears is Harrogate Borough Council's emergency planner
12:37one of the first people on the scene for the sinkholes in 2016 and 2014
12:43coming up on the right we've got the entrance into the old auction mart
12:46and that's where the property was seated that had the issues in Magdalene's close in 2014
12:54that sinkhole formed beneath this house
12:56it was 36 feet wide and 50 feet long
12:59and it ripped the house apart as the occupiers fled
13:03that was just up here
13:04you can see now that the building was demolished
13:09and thankfully none of the other properties were affected
13:13but the chap had left his dog in the house when he'd come out
13:16so the big concern was whether it's safe to get the dog out
13:20the residents had managed to escape but there was a problem
13:25Blue Watch Manager Kenny Beck took the decision to go back inside and rescue the dog
13:29well as we went in you could see undulations in the ground cracks appearing in the ground
13:33and the greenhouse had started to fall in on itself
13:36so it was a quick dashing grab the dog quick dash out
13:39and then cordon off the area and evacuate all the immediate vicinity
13:44today the land where the house once stood is part of a large field close to Ripon city centre
13:50land that would normally be ripe for development
13:52but just one week before the house cracking sinkhole
13:55plans to build 75 new homes here were rejected for fear of what lies beneath
14:04Geologist Dr Anthony Cooper is the leading expert on what lies beneath Ripon
14:09he's been studying the area for 40 years
14:11and drawn up a detailed sinkhole map of the city
14:14those ones that are quite recent also have other ones near them
14:19that have occurred in the 70s and 80s
14:21so the area is pretty well riddled with sinkholes
14:24this part of Yorkshire is a sinkhole hotspot
14:27with the British Geological Survey rating it one of the UK's most susceptible areas for sinkholes
14:33these sinkholes a lot of them are in lines
14:35those lines relate to the pattern of caves that have formed under Ripon
14:40and are continuing to get larger and subsequently collapse
14:44so what causes the caves under Ripon
14:47and why do these caves create such dramatic sinkholes?
14:49the answer is found on the banks of the river Yore
14:55just like Florida
14:56this part of Yorkshire is built on rock that dissolves in acidic rainwater
15:00but while Florida has limestone
15:02Ripon has gypsum
15:04gypsum dissolves about a thousand times faster than limestone
15:09this has come off the gypsum cliff behind us
15:12and just been carried across by the river
15:13it shows the typical dissolution effects that you get of water flowing over a soluble rock
15:18if I put this rock in the river
15:21it would only last a matter of about three weeks before it dissolved away completely
15:28when that dissolving process happens underground
15:31it can create caverns
15:33and when a gypsum cavern collapses
15:35it can be sudden and shocking
15:38well we're just standing next to a sinkhole
15:41that occurred suddenly in 1939
15:42it's about 18 metres across and 9 metres deep
15:46there was no trace of it here before
15:47and the gamekeeper who was in the wood at the time
15:50came out very fast when this suddenly appeared
15:52if this sort of collapse occurred under a house it would be catastrophic
15:59in Magdalene's Road
16:00the sinkhole of 2016 swallowed garages and sheds
16:03but stopped just short of the houses
16:07but now the residents had another ordeal to get through
16:10months of uncertainty until their gardens were repaired
16:13and their homes were safe to return to
16:15we could see from our windows exactly what was going on
16:19and how it progressed from putting in the initial concrete
16:22then putting in tons and tons and tons of normal concrete on top of it
16:26and then tons and tons and tons of rock went on top as well
16:31watching the work it seems so slow and laborious
16:34but they could only do so much at a time apparently
16:36they had to fill it then leave it settle it
16:38check it measure it
16:39and then come back and do it all over again
16:41four to six months it took them to get all that done
16:45the repair work also included sensors that monitor movement of the land below
16:50but now the residents need to know for certain that the ground all around is as solid as it looks
16:56whether it's good news or bad news we need to know
16:59we don't want it to happen in our own backyard again
17:01but obviously it is going to happen again in Rippon
17:03because Rippon's a sinkhole area
17:08Rippon is a city with a history of sinkholes
17:11but it's by no means the only one
17:15after the rain and the floods
17:17it seems the latest curse of Britain's wet weather is the sinkhole
17:22there have been six reported cases already this year
17:26and part of the central reservation gave way along the M2 last week
17:30more and more sinkholes have been appearing across the UK
17:33causing havoc and mayhem for homeowners and motorists all over the land
17:38in High Wycombe a car on a driveway was swallowed up and buried
17:42and hitting the headlines like never before
17:45our daughter Zoe was in absolute hysterics having realized that her car had disappeared into a hole
17:51many of those holes appeared in the chalky land of the southeast of England
17:56with one of the biggest holes opening up in the Hertfordshire town of Hemel Hempstead
18:03the hole was 35 feet wide and 20 feet deep
18:07a sudden and shocking development for local resident Martin Boater
18:12we were woken up at half past seven in the morning by a policeman
18:17saying that we need to get ready we need to evacuate you very quickly
18:20it goes right under the road and goes right under the house
18:24so it's clearly very dangerous at this moment in time
18:26he proceeded to tell us there's a sinkhole that's opened up at the end of our road
18:30and we need to evacuate you due to the fact that there's a possible gas leak and potential explosion
18:36it looked like a serial murder scene because you sort of had police officers putting up tape
18:41the sinkhole had taken out all the electrics, the water, the gas
18:45that stopped the supply to all their houses
18:46they then found another void
18:48there was thought that there could be a void under my house
18:51there were thoughts of void under the neighbour's house
18:53and all sorts of things started to sort of go through everyone's mind
18:57it was a nightmare scenario for everyone on the street
19:00with no power and no heating in the middle of February
19:03and with the hole sinking and the danger rising
19:06the police evacuated 48 households
19:11you've got the wife in tears and the kids in tears
19:14and you know all we want to do is just get into a bed
19:17Martin was told that the disruption to his family's life would last for about a week
19:22but that week of uncertainty turned into months and months of chaos
19:27in the space of nine months we had moved eleven times
19:31the building closest to the hole had to be demolished and rebuilt
19:34so when the Boto family returned to their house
19:37they faced another two years of disruption
19:41the experience didn't stop as we moved into the door
19:44there was still that bit afterwards where they was demolishing the house
19:48and rebuilding the house and the driveway in and out of the cul-de-sac was relayed
19:52and dug up and relayed and dug up and relayed
19:55when we moved back home my son
19:57he sort of had these pieces of tissue on the on the carpet
20:00and I said Carter what is what is that
20:02and he said no no I'm playing sinkholes daddy
20:05and that to me was a telling memory
20:07in terms of not many kids would sort of grow up wanting to play sinkholes
20:11you know
20:13with the sinkhole eventually filled in
20:15and the buildings and road repaired
20:17life in Oatridge Gardens is now back to normal
20:21but in 2017 just around the corner
20:24a second sinkhole opened up closing another Hemel Hempstead road for months
20:32because with sinkholes lightning can strike twice in the same place
20:39two years after the Florida sinkhole that killed Jeff Bush
20:42the land here opened up a second time
20:46daylight revealed a painful reminder for neighbors
20:48the very same sinkhole that took the life of Jeffrey Bush
20:51in February 2013 collapsed again
20:54it's been filled twice or three times with gravel already
20:58and it still looks like it's gone down more
21:03tragedies like the death of Jeff Bush
21:04are a shocking reminder to Floridians of the dangers that lurk beneath the surface here
21:15because sinkholes in Florida are a fact of life
21:18with hundreds opening up every year
21:23so what's it like to see a huge sinkhole rip through your neighborhood
21:27all of a sudden a little hole grows into a giant hole
21:30a home gets taken a second home gets taken
21:33then all of a sudden the back property is affected
21:35you know within a minute
21:36you're in the middle of a worldwide story
21:39and what happens when a double-decker bus meets a sinkhole
21:43it did fracture the gas main
21:45one spark would have done it
21:59on the 3rd of March 1988
22:02bus driver Jim Peitling set off for what he thought would be another normal day in Norfolk
22:08in fact he was about to park Norwich smack bang in the middle of the sinkhole map of the world
22:15I was on a normal day's work
22:16and it turned into an extra ordinary day's work really
22:20I was on my last run of the day
22:22I had let a ready Crete lorry
22:25go past me
22:26about 15 to 20 yards past the bus stop
22:29the bus stopped
22:36there was a terrible grating noise of metal against something and I didn't know what it was
22:43when I looked out of the back of the bus there wasn't any road around the back wheels
22:48Jim got his passengers off as quickly as he could and it was just as well
22:57because the bus was sinking fast
23:00the bus was just about 2 to 3 feet off of the ground
23:04it was held in that position by a gas main
23:07but once the gas main fractured it suddenly finished up in the final position like that
23:18suddenly Norwich was headline news
23:20and all because a burst water main triggered the collapse of an old chalk tunnel beneath the road
23:25creating the sinkhole that was eating Jim's bus
23:29we just heard there is quite a gas leak apparently
23:32yes and I would like to get away from the interview to be able to see what it's all about
23:36we were very very fortunate there wasn't an explosion
23:39and thank goodness you had no smoking signs on the bus
23:42oh absolutely
23:43one spark would have done it so it was we were very very fortunate
23:48luckily the bus didn't terminate here
23:50it was hoisted out repaired and Jim drove it many times afterwards
23:55city centre please
23:5630 people
23:57thank you very much
23:58thank you very much
23:59and for a while he was the most popular man in Norwich
24:01at least among his workmates
24:06shortly after the bus went down the hole
24:07Cadbury's put an advert in the paper with the slogan
24:12nothing kills a hole like a double-decker
24:14and they did send some double-decker bars to all of the lads on the buses in Norwich
24:19so yeah everybody did get a double-decker bar out of it anyway
24:24even though the internet didn't exist back in 1988
24:27that picture of the bus in the sinkhole went viral
24:30that image is the thing that has actually sold the story I'm sure it has
24:34it went around the world whether my name went with it to everywhere I don't know
24:39but it's certainly I'm certainly quite well known in Norwich
24:46a vehicle munching sinkhole that did go viral on the internet
24:49was this one in Kentucky in 2014
24:53it didn't open up in a road
24:55it opened up in a museum
24:57and it didn't swallow a bus
24:59it swallowed eight classic Chevrolet Corvettes
25:09the hole destroyed around one million dollars worth of collectible cars
25:13but this nightmare at the museum took an unexpected turn
25:18the sinkhole was a big attraction
25:21the museum doubled its visitors as more and more people came to see the hole
25:25and the crazy car crash it had caused
25:30it was beyond anything I'd expected
25:32just the size and I guess the depth of it
25:37while many sinkholes are big enough to swallow cars
25:40sinkholes that can swallow a house or two are rare
25:43even in Florida
25:46but in 2017 that's exactly what happened here
25:50back in so-called sinkhole alley
25:52at Lando Lakes
25:54Pasco County
25:55just north of Tampa
25:58there's a sinkhole right next to our neighbor's house
26:01and it's literally eating the house
26:03when the 911 call came through
26:06Kevin Guthrie coordinated the emergency response
26:09to one of the biggest sinkholes this county had seen for decades
26:13on July the 14th at about 7.30 in the morning
26:16we received a 911 call saying that the ground was opening up
26:19at the residence there on Ocean Pine Stripe
26:21with the ground water level so high
26:24the hole quickly filled with water
26:27local resident Terence Dewan watched his neighbor's houses crumble into it
26:31it grew like this
26:33and then it started doing this
26:37the ground started dropping like piano keys
26:40within about an hour what started out as about a 10-foot sinkhole
26:44ended up opening up to almost 150 feet
26:47and it moved over to that side of the house
26:49you know at that point you knew that they were in danger
26:58the first home was completely engulfed into the sinkhole
27:01within a matter of about 25-30 minutes
27:03and then it moved this way
27:06and you knew that that house was going to be in danger
27:09the second home about 40% of it was engulfed in the same time frame
27:15eventually in engulfing probably 60 to 70% within two hours
27:20and then once it had moved side to side
27:23then it started moving forward towards us
27:25that's when my blood pressure started to rise
27:29on the other side of the sinkhole
27:31Ralph Hartwig's family home was getting closer and closer to the edge
27:36two police cars parked in my cul-de-sac
27:38they pounded on my door
27:39and told me that I had to leave
27:42I watched the second half of the second house
27:45fall into the sinkhole over the deputy's shoulder
27:48so they didn't have to ask me twice
27:50once our mailbox went
27:52then we knew that we were in a hot spot
27:55you know
27:56by the time it finally come to rest
27:58at about five o'clock in the afternoon
27:59it ended up being almost 250 feet wide
28:02by about 50 feet deep
28:09Ocean Pines Drive was now ground zero
28:12for Florida's latest sinkhole disaster
28:15and yet just a few hours earlier
28:17it had been a neighborhood that typified the Florida dream
28:22the same dream that brought British geologist David Wilshaw
28:25to live in the Sunshine State
28:27even though he knows more than most about the dangers of sinkholes
28:32as we come round the side of this property
28:34you'll see why they built this neighborhood the way they did
28:38you got your boat dock
28:39you can take your boat out
28:40you can canoe
28:41there are some bigger lakes round here
28:42you could water ski on
28:43that is the typical Florida lifestyle
28:45that everybody dreams of
28:46but it comes at a price
28:49for the residents here
28:50this dream had become a nightmare
28:53the sinkhole had swallowed two houses completely
28:56and nine more were left teetering on the edge
28:59condemned and earmarked for destruction with a red tag
29:04looks like a construction site
29:05which it has been for the last month or so
29:08the first thing they had to do was remove the material which was in the hole
29:12so there was parts of houses a couple of boats and there were septic tanks
29:19so to avoid polluting the local lake they've impounded the area where the sinkhole occurred
29:25basically they filled it in with crushed limestone
29:27and then built a dam around the edge of the sinkhole lake which is now formed
29:34for Terence Dewan the filling and work didn't save his home
29:38the property has been condemned as too dangerous to live in
29:41be careful
29:42you can see this is the concrete line where the hole was on the driveway
29:47because this was my driveway that went out you know 40 feet
29:50and that's in the hole
29:52I mean it stinks through no fault of your own
29:56you know your property is pretty much not livable
29:59and at the end of the day we're not going to be living here again
30:03back in Ripon it's nine months since the sinkhole that swallowed four gardens
30:08and local residents are now putting their lives back together
30:13Peter Osler and Julia Lister bought their house here as an investment
30:17to do up and sell and give them both a pension
30:21so a sudden sinkhole definitely wasn't part of the plan
30:25this was just a little cupboard here
30:28which we've then made into an en suite
30:32we've totally rewired it
30:34we've totally replumbed it
30:36we've re-insulated it all
30:39we haven't shirked on anything
30:43with so much time and money tied up inside the house
30:46they need to know that this part of Ripon is back on solid ground
30:52when the sinkhole swallowed the gardens here
30:55Harrogate Borough Council called in the British Geological Survey straight away
30:59their measurements of the size and depth of the sinkhole
31:02were crucial to working out how to fill the voids below
31:05and stabilize the land above
31:09now Dr Oliver Kouros and his team are back to take a form of geological x-ray of what lies
31:15beneath
31:16so what we're doing here today is we're running a microgravity survey
31:20and that involves using a gravimeter
31:23we're essentially taking images off the subsurface
31:26much like a medical doctor would take images of a patient's body to try and understand what's going on inside
31:34to ensure that a sinkhole doesn't strike twice
31:37it's vital to fill all the open spaces beneath
31:41in Sefner the hole that killed Geoff Bush was filled with gravel
31:45and all of it disappeared just two years later
31:49but filling holes is expensive
31:51so in Florida many are left to become lakes
31:54and in Ripon historic sinkholes have become landmarks
31:59especially the 1834 sinkhole that may have inspired one of the world's best loved children's books
32:08Alice in Wonderland is the story of a girl falling into a rabbit hole
32:11and entering a magical world underground
32:15the man who wrote it was Lewis Carroll
32:17a regular visitor to Ripon
32:19because his father was a clergyman at the cathedral
32:24when you combine the quirkiness of Ripon Cathedral with the drama of the city's sinkholes
32:28you have the makings of a fantastic story
32:32so did Alice fall down a rabbit hole or a sinkhole
32:37geologist Anthony Cooper claims the answer lies right here
32:40behind this clump of trees
32:43when you get a bit closer
32:44you find to your surprise
32:47that there is in fact
32:48a 20 meter drop
32:50down a hole
32:52with red sandstone exposed in the back of it there
32:56it's about 11 meters across
32:58it's about 20 meters deep
33:00this hole is close to the city's old railway station
33:03Sir Lewis Carroll would have passed it many times
33:06I think there's a strong connection between
33:09Alice going down down down
33:11not a rabbit hole but a sinkhole
33:13but you can't say in a children's book
33:15Alice went down a sinkhole
33:17and they probably didn't even have a name for it then
33:23Lewis Carroll isn't the only person to take inspiration from Ripon's sinkholes
33:28just across the river at Ripon Golf Club
33:31sinkholes are a feature of the course
33:33they call them bomb holes here
33:35and according to club member Anthony Blackburn
33:38the players love them because they're an ever-changing challenge
33:42the area that has got the sort of shrubbery in it
33:46that is one of the biggest sinkholes on the course that one
33:49it looks pretty flat here
33:50but then all of a sudden just over the brow of the hill
33:52you've got this huge bump hole which just appears
33:55you've really got to carry this with your drive
33:58if you're going to get a chance to either make birdie or par on this hole
34:02every one of the first nine holes here is peppered with sinkhole craters
34:06and land that seems to dip a little more with each passing season
34:10as we come further up the fourth fairway
34:14you can see quite a significant indentation here on the left-hand side
34:18this has gone from being a completely flat green
34:21to one that I suppose slopes quite severely from back to front
34:26it slopes so much that during the summer months in particular
34:30the green staff cannot put the pin anywhere near the middle or front of the green
34:34because it's so fast and downhill that the ball just keeps on rolling off the green
34:39and it's virtually impossible to stop it
34:40although on the plus side get your shot wrong
34:44and there's a good chance you'll get a sinkhole in one
34:47one of the things that really amazes me when I play with visitors
34:49is they come to places like this and they go
34:52wow look at that I didn't know that was there isn't that amazing
34:56and it's interesting that they love the quirkiness of this front nine holes of golf
35:00and often it is because of the features from the the gypsum sinkholes really
35:06the missing of that put had nothing to do with the gypsum
35:12perhaps it's no coincidence that Florida has more sinkholes and more golf courses
35:17than any other US state
35:21most of the water features and lakes here are sinkholes
35:25including the one in Lander Lakes Pasco County that struck so shockingly in 2017
35:33the property is condemned if you feel the ground shake I'd start running
35:39Rolf Hartwig his wife and baby's son
35:43as the hole swallowed the house
35:45usually it would be mowed
35:49so this was where you hoped your son would grow up and play and pick a ball
35:53yeah this would be where my son would play
35:56what do you think will happen to this house now?
35:58the county's probably going to knock it down and make a park out of it who knows
36:03all Rolf can do now is think about everything the sinkhole has taken from him
36:09how do you feel to be standing in the garden here looking at him?
36:13huh?
36:16you would have to censor that
36:23on the other side of the newly formed lake
36:27Terence Dewan is stepping back into his condemned home for one last look around
36:32all right
36:33so
36:34where we at right now obviously we're in the kitchen
36:37we've removed all of our things
36:39this was
36:40the nice granite and new counters and cabinets that we had put in
36:47we had all new appliances that we bought
36:49if you're not careful you'll trip over some of those right there
36:53normally that water would have drained off
36:56and instead you know it seems to be pitching inward
37:00and you can kind of see the water signs there
37:05we got a boat we live on a lake
37:07it was one of those things
37:08waited a couple years save up some money
37:10get the boat live on a lake have fun
37:12and then it's just kind of gone
37:16one of the cruelest things about a sinkhole
37:19is the speed at which you can take so much away
37:22all your hopes dreams and plans sunk in a matter of moments
37:27usually it happens on TV and it's somewhere else
37:31you know and you're watching other people deal with
37:34the tragedies and the things that you know that
37:38that go on when holes like this open up
37:41of course this hole is a little bit different
37:42you don't see holes like this opening up every day
37:45you don't see a big hole open up
37:47and basically swallow two homes
37:51back on the other side of Ocean Pines Drive
37:54Rolf may have lost his home
37:55but he's staying positive
37:58he believes despite everything
37:59he's a lucky man
38:00now when I tell you that I'm a fortunate individual
38:06that's why
38:08his wife Sule and son Henry got safely out of the house
38:13so you may be looking for a new home
38:16but you're both safe and your son is safe too
38:20yeah we're very lucky aren't we
38:27so can anything be done to prevent devastating sinkholes like this
38:32this is probably the most documented sinkhole in history
38:36and what lessons can sinkholes teach us
38:38buildings have to be designed to a higher level of safety
38:41to allow for a future sinkhole collapse
38:57I ask everybody out there please pray for the people in this community right now
39:00they're fearful
39:01and unfortunately we can't give clear answers because this is mother nature
39:05when the lander lake sinkhole made the news all over the world in 2017
39:10one expert realized it was happening very close to home
39:13because I grew up right near here
39:16I was very interested right away
39:18and understanding right away where they were talking about
39:22Dr. Laurie Collins is a geoscience professor from the nearby University of South Florida
39:28so this was a perfect opportunity to study a sinkhole from beginning to end
39:36using the same kind of technology that the British Geological Survey have been using in Ripon
39:40Dr. Collins and her team assembled a 3D picture of the surface here and what lies beneath
39:46this is probably the most documented sinkhole in history
39:50we're going to be making all of these data sets freely available
39:53so that we can really see understand and share the science related to this site
39:59their research shows that this entire area used to be a lake
40:03and that lake was an ancient sinkhole
40:07by sharing this information with experts like David Wilshaw
40:10Dr. Collins hopes that disasters like this can be avoided
40:14with a much better understanding of how and where to build houses in the future
40:20well this is great to have an actual kind of 3D image of a sinkhole
40:23that is something we rarely get
40:25what we have been able to show is that there's been dredging of the Lake Saxon area
40:30that essentially took all the dredge material and made new land
40:35so most of what we're seeing through here is that are actually houses sitting on new land
40:40or changed land surface
40:45the problem for Florida is that its population is growing all the time
40:50and properties are being built on new land all over the state
40:55that's why sinkhole reports are rising year on year
40:58because more and more people are living right on top of them
41:05Jeremy Bush and his family are still struggling to make sense of a sinkhole
41:08collapsing right under their house
41:12swallowing and killing Geoff Bush
41:16with their house destroyed
41:17Jeremy and Rachel now live in a mobile home
41:20their lives change forever by a sinkhole
41:26life's different
41:28going from living into a house living into a trailer
41:32I still have worries here because I got worried about the tree above my trailer now
41:35there's always something I suppose to worry about
41:37there's always something
41:38no one ever said life was easy
41:43back in Ripon
41:44the latest plan for the land where the 2014 sinkhole happened
41:48is to put caravans here instead of houses
41:52but Ross Nicholson is a geotechnical engineer
41:55who's been studying this land in detail
41:57and believes even caravans could be unsafe here
42:01if you can imagine a situation where perhaps in late January during the night
42:06in a heavy downpour or heavy snowfall
42:09one of the caravans subsides into a large hole of five meters depth
42:13with elderly people inside it
42:14how are they going to escape?
42:16and as for building new houses in Ripon
42:18Ross says lessons should be learned from the sinkholes here
42:22and in other sinkhole hotspots all over the world
42:25so even if there are no sinkhole features present now
42:29they could appear in 40 or 60 years
42:32and change the safety of a site completely
42:36so buildings that are built on gypsum prone areas of Ripon
42:40have to be designed to a higher level of safety
42:44if I was a family man with a young family living in Ripon
42:48I would like to know what's beneath my feet
42:51but I can also understand why people would prefer not to know
42:56Back in Magdalene's Road
42:58Peter Osler and Julia Lister
43:00know a lot more about what's beneath their feet
43:03than they did before the sinkhole in 2016
43:06The main worry was the unknown
43:09and as time has gone on
43:11the geological guys have come along
43:14and explained things to us
43:17so it's not frightening anymore
43:22The British Geological Survey will continue to monitor the land here
43:26to assess any remaining risk
43:28but there's no sign of imminent subsidence or cracking
43:32and the concrete plug that filled the hole
43:34appears to be doing exactly what it's designed to do
43:37on top of that
43:38most residents think the area looks better than it did before the sinkhole
43:42What you see today is absolutely fantastic
43:46it's brightened the whole area
43:48we've got a brand new road surface out of it as well
43:51we're the ones that are letting the side down at the moment
43:54because we're still renovating
43:56so sorry neighbours
44:00Doreen Ellis too is confident that her sinkhole misadventure is over
44:04and that her house and garden are now firmly on solid ground
44:09we're apparently 99% sure that you don't get two in the same place
44:13we know that other parts are ripping
44:15it could happen there
44:17but once you've had one you're not going to get another one
44:19so it's probably the safest place to live
44:21on top of a sinkhole
44:25and sinkholes returns with sucked under next Monday night at 8
44:30stay with us as Chris Tarrant gets to know Eastern Europe
44:33its people and culture on a moving extreme railway journey new next
44:37then if you've ever wondered why the tube is so ear-splittingly squeaky at bank
44:42we're going underground on the central line at 10
44:45next the latest five news headlines
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