- Whaley Bridge
but it is particularly interesting to read that a clay layer beneath the spillway has been eroded. I’d be surprised if this clay layer was the main waterstop for the structure,
I suspect “clay layer” may be a guess by a journalist. As you say there is normally a clay core with other material making up the bulk of the embankment on either face. Not that it matters much what it is if it gets washed away. The spillway failure looks very much like the Oroville Dam failure in the States where water found its way down between the concrete floor and the side retaining wall of the spillway washing out the foundation. I suppose all that can be done now is to continue getting the water level down as quickly as possible to reduce load on the embankment and avoid any further overspill.
Disclaimer – Ex Civil Engineer, designed water retaining structures but never an earth embankment dam.Posted 3 months agosingletrackmindMember
Its ok , the interent says there is a plug, its low down but there is a plug. Hope its got a long chain on it that reaches the top, I mean surely …
Loving the guy on the static line secured to the flimsy galvanised footbridge. Yes , when that dam gives way the static line will ensure your safety as the galvy footbridge is mounted onto the dam , which is on a soaking wet mud bank with some modelling clay whacked on the front,Posted 3 months ago
by Irish Navvies in 1820 . Always time for safety whilst placing sandbags on top of a busted dam wall to divert the overtopping to a more stable run off area.BunnyhopMember
Been watching the Chinook on the local news this morning. What skill those pilots have dropping the gravel bags down.
We’re 6 miles away from the dam. It’s been a weird night. For some reasons a lot of house alarms have been going off.
I have friends and customers in Whaley Bridge,its a properly worrying situation for them. Some have businesses that they’ve taken years to build up.Posted 3 months agowrightysonMember
Good update from the actual scene via the people who know. (Derbyshire constabulary)
A further update has been issued this morning regarding the ongoing incident at Toddbrook Reservoir in Whaley Bridge.
Officers have been assisted overnight by a wide number of partner agencies including the fire service who have sent firefighters from across the country, the Environment Agency, the ambulance service, local councils and emergency planning staff.
We were also assisted overnight by RAF crews who used a Chinook helicopter to move more than 50 tonnes of aggregate into the reservoir wall to reinforce it.
This work was done in conjunction with expert structural engineers, who have been advising the emergency response since yesterday afternoon.
Throughout the day, work will continue to further shore up the reservoir wall. The Chinook will also be dropping aggregate into other parts of the reservoir today, to stem the flow of water going into it.
There are also a total of 16 high volume water pumps which have been installed in the reservoir, in order to reduce the water levels. These have been provided by fire services from across the country and the Canal and River Trust.
Assistant Chief Constable Kem Mehmet, said: “Our message today remains the same as there is still a risk the dam will fail, please stay away from the area.
“If you are asked to leave, please heed emergency services and expert advice and do so. We understand that being asked to leave your home is an extremely difficult and worrying situation to find yourself in, however it is not a decision we have taken lightly and ultimately the safety of the public is our main concern.
“The evacuation point at Chapel High School, Long Lane, Chapel-en-le-Frith, High Peak, SK23 0TQ, will remain open today and residents will be accommodated if they are unable to make alternative arrangements.
“We have evacuated more than 1,000 people from the areas that would be immediately affected by floodwater should the wall fail.
“The majority have been able to find accommodation with family and friends. About 40 people have also been put up in a local hotel and they will be looked after today.
“We don’t know how long this operation will take to conclude but we and our colleagues in the emergency services, partner agencies, Environment Agency and military are doing everything humanly possible to save the reservoir wall and to protect the town.”Posted 3 months agoHounsMember
Blimey, was 2007. Interesting readPosted 3 months agonedrapierSubscriber
I find it amazing that they can lower the volume using pumps. There must be some serious volumes being shifted.
Yep. I guess you need a big pipe (or 16) and just enough oomph to prime the pipe to its high point and back down below the water level, then the siphon will do the restPosted 3 months agonbtMember
Aye, I rode over the Goyt at marple on the way home lasty night and again this morning on the way to work. last night I crossed at chadkirk where the river is already about 60 feet wide – it was up to about 80 feetwide, and a good two or three feet deeper than normal. there’s normally an exposed weir there, it was completely submerged.
this morning I crossed at Brabyn’s Park, river is much narrower there (it’s just above the point where the etherow joins) and it as about 2 feet up on normal, width up from 20 feet to 25. You could see though from the vegetation it has been a good three or four feet higher in the past dayPosted 3 months agoBunnyhopMember
A couple of years ago I’d ridden the Whaley Bridge mtbike loop. After the ride I walked into the local Co-op to gorge on munchies. I reached for the only almond tart left at the bakery section at exactly the same time as Edwina Curry. She grabbed it, I was just a second too slow. I wanted to shout – ‘Edwina you have absolutely no idea how hungry I am at this moment in time’. There won’t be a next time, I’ll wrestle her to the ground, wearing sheep poo smeared riding gear.
Fingers are crossed that there won’t be any more rain for the next few days. Although some is forecast for Sunday.Posted 3 months agotthewSubscriber
Apparently some residents are refusing to leave, prompting others to call them selfish because in the event it does go it puts emergency services at risk to rescue them.
Can’t see why the emergency services wouldn’t just leave them to make their own arrangements if the worst happened and they chose to stay.Posted 3 months agon0b0dy0ftheg0atMember
Trying to get my head around this one…
Couple go to Stockport for the day, but on return cannot go back home due to the dam. Later in evening, they are let through cordons to rescue their pets. They get their two dogs, but leave their rabbits behind without food.
How the heck does that happen?Posted 3 months agowhitestoneMember
Second picture down, beneath the “How Dangerous is it?” subtitle – https://www.bbc.co.uk/news/uk-england-derbyshire-49201467 shows earth to the outside of the spillway wall to have been washed away as well. Possibly due to spillway water eventually undercutting the wall – no way of telling for sure.Posted 3 months ago
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