Why does York flood?

Floods on riverside path
I noticed some time ago that a common search query bringing people to my website is ‘Why does York flood?’

There’s very little useful/user-friendly information available online to someone asking that question. After trawling through a few websites aimed at school pupils, and Google books, I thought I’d provide a useful and hopefully accurate summary/answer, in an effort to fill that gap.

York in particular

  • Our main river – the Ouse – collects the waters from several rivers coming down from higher ground in Yorkshire – its tributaries. These are the Ure, Swale, and Nidd. (Other rivers also join the Ouse, beyond York.)
  • York is on the confluence of two rivers: the Foss, a smaller river, joins the Ouse just downstream of the city centre, past Skeldergate Bridge.
  • At times of heavy rain, it all runs off the higher ground north of York rapidly and hurtles down the tributaries towards us, aiming for escape into the North Sea, via the Humber.
  • It’s rather flat down here in the Vale of York (as the name suggests), which means the water spreads out a bit when it gets to us rather than rushing through.

So York has always had a tendency to flood. This most recent and particularly dramatic flood occurred after a record amount of rainfall in a short amount of time. But the spectacle of a rising river spilling out beyond its usual confines is very common in York.

In York and elsewhere

Of course, floods in general, in York and elsewhere, are thought to be getting worse/more frequent, and the general consensus seems to be that this is connected with:

  • More of the land is built on, so an increase in hard surfaces like concrete, tarmac etc means water runs off rather than being absorbed into earth as it would be in ‘olden times’ when it was all fields. (A small example of this is the ‘road stream’ spotted by Clifton Bridge recently.)
  • Changing weather patterns/climate change.

Also on this website

As mentioned above, the Ouse floods to some extent on a fairly regular basis, and this has been recorded on this website at various times over the years:
River view
Photo from 1978 floods, Ouse Bridge

Station Rise open to through traffic during floods (early 1980s, probably 1982)

Flooding in February 2004

Flooding in October 2004

Flooded ings, November 2006

Riverside walk, rising Ouse after summer rain, 2007

River is up, December 2011

Elsewhere on the web … not much

One useful web page, full of interesting information on the York flooding situation (sadly it looks rather dated and uses a weird font, but anyway): coolgeography.co.uk – floods, York

If you’ve found clear, well-presented, authoritative information on York’s flooding problems, please add any links via the comments form below.

Tag(s): floods, rivers, Ouse, Foss

Tagged: , , ,

  By Lisa @YorkStories 28 September 2012 , To link to this page's proper location please use the > permalink

About Lisa @YorkStories

Lisa @YorkStories is the creator, administrator, and writer of content on www.yorkstories.co.uk. She can be contacted on this link or via Twitter, @YorkStories

8 comments

  1. York has always flooded… just go an look on the wall in Tower Street Gardens and you will see a record of the flood levels that have occurred over the 19th & 20th Centuries.
    The frequenccy of flooding has increased due to the CAP (Common Agricultural Policy).
    Back in the 19?0’s the agro politicians in Brussels agreed to pay large financial subsidies to “upland” farmers to install land drainage. The objective of this was to “improve the quality” of the upland areas by speeding up the removal of surface water from the land. A drier and firmer grazing means that cattle, rather than sheep, can be grazed where it was not previously possible. So the farmers of Upland farms have more productive land and everyone is happy!
    Except for those who are down stream of the farms that are draining the water of at a higher rate.

    The level of the Ouse and the rivers that flow in to it (Nidd, Swale, Ure etc)and the “shape” of the land has evolved over many thousands of years.
    The “Vale of York” is, in essence, a massive flood plain – stand on the viewpoint outside Crayke castle and you will see how flat the land is.

    In York we benefit from the remains of the Ice age and the Morains that form Siwards Howe (University of York), Holgate and Tadcaster Road and Windmill rise… however I digress…. So with all of this additional Water arriving much sooner, due to the Upland drains, it is obvious what happens – the Water rises quicker as the “profile” of the river bank is unchanged.
    In an attempt to “catch” this faster rush of water from the upland (Yorkshire dales) a number of flood plains were constructed to the north of York, to reduce the flow and subsequently release when the water levels drop.

    As to why we are having so much rain, well that’s another story!

    Regards
    Mick
    http://www.tinyurl.com/vdn199

  2. Tom Calland

    I myself am a student and this helped massively. Thanks!

  3. felix orchard

    great help, thanks

  4. That was really helpful, THANKS!!!!!!!!!!!!!!!!!

  5. If you look at old photographs of York the river appears to have been tidal. This is before locks were added to make the River Ouse navigable at all states of the tide. These now act as Dams holding back the water and making it back up for many miles. Has anyone considered that this may cause problems upstream?

  6. this was extremely helpful and has helped me with my school project immensely, thank you!

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