/
York floods November 2000 York floods November 2000

York floods November 2000 - PowerPoint Presentation

calandra-battersby
calandra-battersby . @calandra-battersby
Follow
373 views
Uploaded On 2017-06-11

York floods November 2000 - PPT Presentation

3540mm rain in 24 hours 3000 people evacuated Army called in to help Ouse 48m above normal levels 80000 sandbags used York race course flooded no races Average insurance payout 25000 per property ID: 558540

flood ouse foss river ouse flood river foss water york barrier levels flows 1982 amp pub beck constructed 000

Share:

Link:

Embed:

Download Presentation from below link

Download Presentation The PPT/PDF document "York floods November 2000" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.


Presentation Transcript

Slide1
Slide2
Slide3

York floods November 200035-40mm rain in 24 hours3000 people evacuated, Army called in to helpOuse 4.8m above normal levels80,000 sandbags used

York race course flooded – no racesAverage insurance payout - £25,000 per property£1.3m in costs for sandbags, fire, Army£10m in lost income – 200,000 fewer visitorsSlide4

York

R. Ouse is fed by Swale, Nidd & Ure.

Flooding can occur quickly.

R. Foss meets the Ouse in York.Slide5
Slide6
Slide7

A

B

When the river is in

flood a sluice gate is opened at Point A.

Water then flows into the Ings which is surrounded by a large embankment. It is stored here, like a reservoir, until the river level falls.

When the river level falls, water is let back into the river via a sluice gate at point B.Slide8

2.3m cubic metres – lowering flood levels by 150mm

Cost £1.25m in 1982

River OuseSlide9
Slide10

Floodbank constructed in front of houses & sewage system improved in 1980.

Floodbanks raised in 1982 after wind blew waves from Clifton Ings.Slide11

Built in 1982 .Concrete flood walls with strengthened steel centres have been constructed to protect against powerful flood water.

Natural looking embankments also constructed.Valves installed to isolate sewage during flood periods.

Lower Ebor StreetSlide12
Slide13

Holgate Beck diverted so discharge flows into the River Ouse downstream of York.Upstream of York where the Beck meets the Ouse, a two-pump station was built to control water levels.

Holgate BeckSlide14

Marygate Flood Walls

A wall of waterproof bricksSlide15

Lendal BridgeSlide16

Museum GardensSlide17

The Museum Gardens has an embankment in it. This increases the volume of the river channel and also acts as a barrier to flood water.

Any rabbits or vermin in the flood wall are killed by pest control. Slide18

The Kings Arms Pub

Many buildings have to adapt to the floods. The most famous building for flooding is the Kings

Arms

pub.Slide19

Beer is kept upstairs instead of in a

cellar – electrics are at roof height.The pub has stone floors.

There is a second entrance up the street.The bar can be taken down & moved upstairs in less than two hours.Slide20

River Ouse flows south, carrying more water than the Foss

The Foss often carries less water than the Ouse

The Ouse spills into the Foss, causing the Foss to floodSlide21

Why is there a Barrier?

What potential problems can you think of with this Barrier?Slide22

The Foss Barrier is lowered stopping the Ouse flowing into the Foss.

The Foss is then pumped into the Ouse by 8 pumps.

30tonnes per second

Made from natural materials (sandstone) to blend in.

Cost £3.34mSlide23