A421 Flood Water Pumps now in place |
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- Опубліковано 1 жов 2024
- Bonus video for my subscribers, off piste and I did say I was not going to over this but it's just a quickie with this one but I popped along to the A421 flood today to see what is going on and are there any pumps been put in place to deal with the flood.
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The two pump arrangement is referred to as Duty and Standby. it allows for failure and maintenance and avoids overheating. They are obviously limiting the flow rate to avoid erosion. It also looks as though they have deliberately chosen a reed bed to discharge into. I am no expert but I suspect that it acts as a natural filter. To pump that volume of water into a sewer would be madness. It would swamp the sewage treatment plant.
I suspect the extra pumps are mainly to maintain head pressure over such a long reach.
I think you are right.
They ate Balance ponds. They are designed to take all excess water from the roads. So it's fine to pump into there
Thanks Steve, good to know.
Maybe they will have to look at the drainage systems around this junction to stop it happening again. The UK needs better storm drains.
Yes, it's a bad design.
@@ProjectUniversalUK There is a pumping station in the bottom of the dip next to the bridge, but main pump failed, and the back-up was overwhelmed, so design was OK but maintenance needs to be improved.
Drainage would not work because they take water to the lowest point, which is the junction. It needs a pump to push it out, but the pump failed.
@PeterOGB That's because we are now a 3rd world country and maintenance has suffered due to the "it is working so why fix it" mentality.
The two pumps are a good idea, main and standby. Both can come on when needed to increase the suction on the input lines. THE BIG QUESTION... Why did the underpass installed pumping fail. Power Outage? Poor attention to maintenance? Management cutting costs of same? I believe this by-pass is a PFI job? or some such fudge. I used to travel this way a lot, there was often flooding under that interchange. At best it is a design failure. The magic money tree will sort this out, if some important people have been inconvenienced. No -- "This is a one in a hundred year event", no need to do that, well not unless you pay for it. We built to your spec, Cough up please, or make an Insurance claim, we can the spread the costs all around the general travelling public without them noticing, our dividends are safe.
I'm sitting in America and I'm saturated with all the delicious sarcasm dripping from that spectacular comment. You hit multiple nails right atop the head mate.
if one pump fails you still have one pump running
I hope they drain this soon….its making the morning traffic through Wootton a nightmare. Struggling to get off the driveway sometimes
Sadly it will take time. Once the area is cleared of water, the road will be covered in debris which needs to be cleared. The road then needs to be inspected for damage.
They're not pumping it into the river. They're pumping it into a filter system. Those reeds are ment filter the water from the road surface. Before it goes into the rivers.That's where the road drainage is designed to go. They know what they're doing.
Thanks Wayne for the input, it's good to know the reeds act as a filter.
My husband has to travel this route everyday to and from work...takes him two hours to get home...absolutely ridiculous!
Me too, I go through the villages, still takes longer but takes the edge off a 2 hour trip.
@ProjectUniversalUK oh he's tried every route possible we live in Riseley the brook did come up once but passable...luckily it went back down because if that floods your blocked in the village because of the way the brook runs...the Joy's!
There is a big heavy duty pump at the side of the dual carriageway where it is flooded it was installed during construction.I wonder why it didn't do it's job
It's said it just got overwhelmed and failed.
Thanks for the update
No problem 👍
I don't think they have much choice but to dump it in the landscape, given that the flooding indicates the storm drains and sewers are already swamped.
It's being pumped into the balance ponds and those ones are connected to the flood water system that will eventually find its way to the river Ouse. I guess they have little other choices.
@@ProjectUniversalUK I wonder if the gulleys to the ponds are as full of building waste as the ones on a new housing development round my way (Olney)!
depends on the psi there pumping at them pipes can hold alot more water than you would think, can kinda compair it to fueling space x's starship that takes 80+ tankers worth or cyro to fill it they can push that through 2 10" pipes in around 55minutes.
The pumps are in tandem to increase suction rate and the increase discharge flow rate due to the distance. You are right in saying they are quite small for the job in hand.
I thought they might not be idea for the job but I suppose most pumps in the country are on hire at the moment so you get what you can in a situation like this.
@@ProjectUniversalUK yes many on hire at moment, however it’s becoming more commonplace to see smaller pumps nowadays due to the running cost as they are no longer allowed to run on red diesel ( which is around 1/2 the cost of white diesel) as classed as construction plant. Only agricultural vehicle now allowed to run on red diesel.
Probably double pumps for backup purposes too, so if one fails it can carry on with the other
2x pumps in my opinion are the same as the first comment from @max, the dual pumps is to counter the pressure of sucking that dirty water away, vacuum won’t be that same as it’s pressure to push it away and it’s take at guess at saying them 4” 6” hoses are only good for 10 bar pressure and I bet them pumps are running 14 up just to compensate for loss of vacuum, the set u would work better if they equaled the distance apart and equal out the pressure needed from each station
The banning of red diesel for construction was sh*tty move by the tories.
Look at rise of water. Fire pumps in London during war had to pump at 1/2 lb per foot lift from Thames to end of fire hose on top of ladder to quench building fires. Friction and bends also add to lift capacity. The director under whom I worked donkeys years ago was most interesting upon this subject.
There were still 25 tankers working in the opposite direction (towards M1) on Sunday afternoon.
I think that's an attenuation pond that they're pumping the water into - they're provided for natural filtration of surface water runoff.
I’ve also seen videos of them pumping simultaneously into six tankers.
There really wont be much in the way of any oil or any other contamination to worry about. Certainly not worth even thinking about pumping it into any sewers!
Crickey that’s not pumping very much at all….
Can’t pump more than limited water into a canal they are relatively stable in capacity as against rivers which have natural flow.
Your not supposed to run pumps 24/7 so they're likely doing 8 hour shifts
Someone's just driven through the road closure and into one of those pumps
Thanks for this, satisfies my curiosity as to what's going on along there. Those Pumps are quite small in the grand scheme of things, look like 6". Get a couple of 12" running and you'll move some water, but as others have said, they may be limited as to what the Reed Bed will comfortably handle, without being swamped. Setup is designed as due to the distance, the pumps are working in relay, to move the water along the required distance.
Not much point pumping it to the sewers, many are at capacity already with the weather, and the sewage treatment process isn't designed to remove oil/petrol/diesel. If pollution is a concern, then the water needs to go through an Interceptor to remove the contaminants first before dropping it into the watercourse.
The reason the issue occurred is likely due to to the location of the controls for the fixed pumps, in the basin next to the road. The pump station was overwhelmed, levels rose quickly, swamping the electrical kiosk and knocking the power out to the pumps. Once this happened, the rest was inevitable.
Hindsight is a wonderful thing, but why on earth the electrics weren't sited at the top of the bank, so they could be accessed in the event of pump failure I do not know. Whoever designed it didn't allow for total pump failure.
I know right, it's crazy why they didn't put all the kit up high and dry?
Why would universal build if every times rain no one can get there this country is a joke now everywhere floods same places nothing gets done
These problems can be engineered out.
What the drone doesn’t show is the hill they are pumping the water up!
Yep, good shout although the majority is mostly flat after the initial up.
What drone are you using? Very impressive picture.
Dji Air 2s. Old school drone now.
I understand your concern about the drone going to far and out of line of sight, but I wish you could have followed that pipe further to see where they are pumping the water to!! Perhaps another video starting from the A6/A421 junction and flying back towards the flood ?
Watch the whole video, I did exactly that.
Sorry, I should have watched to the end before jumping in with my comment!! Can't believe they are just pumping the water out onto the ground, is there some sort of a stream channel there ?
They will have a double pump for redundancy. Ether both will be running at half capacity or one will be running and the other idling to take over in the event of a pump failure
Thank you
Neither a pump expert or a sucker. think the difference of you using a straw as opposed to a hose to drink something. I'm guessing they're doubling them up because there probably are very few mobile pumps big enough to do it alone
Not really much of an update was it,stuff universal nobody wants it.Prity pointless video really.
92% of the people that went to the consultation want it.
I would be extremely interested to know/understand what exactly is your connection to Universal Studios (are you an employee or work for CBC?), therefore, being either of which, you have a vested interest. Your YT channel profile doesn't actually highlight/give those background details which is rather unusual! Look forward to receiving your response. TIA
I have no connection to Universal/Comcast whatsoever. I'm just a local resident taking a very keen interest in what is happening.
Are you a water pumping expert ?
Facebook qualified.
Clearly not
More than you are apparently
What a useless bit of information
You're welcome Hugh.
Rude
pumps are set up in pairs one running and one incase of breakdowns