But surely you’d have an extra 1m3 in just one m2 that you dug. If the river level stayed the same there would be a massive extra capacity below the surface that maybe wouldn’t then breach the top?!?
Well this would work in a lake with nothing coming in and out, but on a lowland river you do your dredging and instantly the level comes back to where you were. And this is before any flooding starts. The normal course of a river is quite small in volume so you need additional capacity off line to accommodate flood water, so farmer's fields and dedicated wetlands fill up. Many farmers are compensated for this as it's part of the flood management scheme. I live about 200 metres from the River Ouse in York. It's just greenery from my house to the river except when it floods and then I live next to a lake. It's OK right now, but this is what I see now and then. It's meant to be like that. The river is just beyond the trees in the background, and the bottom of my garden is under 4 feet of water.
Maybe if the first four foot of house's where lead lined on the outside would help! Who want's some Its bad all this flooding because a lot of it could be prevented by dredging, its sad state of affairs.
I just can’t stand all the whingeing. Its someone’s fault and it’s up to the Government, police, Council, that dick bloke down the roads to sort out my house NOW. I feel sorry for anyone who’s house has been flooded but it happens and that’s what we pay house insurance for.
I'd add to this that the Environment Agency issues a map of UK showing flood risk. You can look it up. The planners allow new housing to be built only where it's predicted to flood no more frequently than once in 1000 years. Not much comfort to those in houses already built too low mind. My house stands above the 1000 year level, even though the garden floods.
...and then you get into probability and a 1 in a 1000 year event could happen tomorrow just as likely as it could happen in a 1000 years time.. Sent from my SM-G930F using Tapatalk
Agreed, though actually what they say is that it's got a 1 in a 1000 or less chance of flooding in any one year, so not bad odds, and they've built in a factor for climate change too.
Has anyone told @Baysearcher about the flooding ? He might get stuck on a train in the floods otherwise !!
Just watching the local news about the floods....interviewed folk in Bentley Doncaster, wheeling shopping trolleys through flooded streets to get provisions from a food bank and sleeping on buses. Over to Fishlake where they interviewed a lady who couldn't use her shower at home, so had popped out in her 4x4 to her hairdressers for a wash and dry. And we moan about the North/ South divide !
He’d come looking for his mate’s canoe which was stuck on the bushes on the right. The paddle had drifted onto the grass. Not quite a “I wouldn’t touch it with a barge pole” situation but close.
Last year a builder built a couple of new houses at the end of our lane where it always floods. Us locals were flabbergasted that anyone would build there but they did and the new owners (fresh from down south somewhere) all moved in much to our amusement. Guess what.............................