lynmouth flood 1952 l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
LYNMOUTH FLOOD 1952 PowerPoint Presentation
Download Presentation
LYNMOUTH FLOOD 1952

Loading in 2 Seconds...

play fullscreen
1 / 7

LYNMOUTH FLOOD 1952 - PowerPoint PPT Presentation


  • 252 Views
  • Uploaded on

LYNMOUTH FLOOD 1952. …it’s going to be a very wet tale…. setting the scene I. …so where is this Lynmouth place?…. Lynmouth is situated on the North Coast of Devon. …oh, so that’s where all the action is going to take place!!…. setting the scene II:.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'LYNMOUTH FLOOD 1952' - Ava


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
lynmouth flood 1952

LYNMOUTH FLOOD 1952

…it’s going to be a very wet tale…

setting the scene i
setting the scene I

…so where is this Lynmouth place?…

Lynmouth is situated on the North Coast

of Devon

…oh, so that’s where all the action is going to take place!!…

setting the scene ii
setting the scene II:

…what were the CAUSES of the flood?…

August of 1952 was extremely wet

the ground had become saturated

on the evening of August 15th 230mm (23cm) of rain fell in a freak storm

lasting 14hours (over 3000million gallons of water)

Immediate surface run-off causing a flash flood

…I’m singing in the rain, I’m singing– hang on it’s getting very wet here! …

slide4

setting the scene III:

…yep – you guessed it, more CAUSES…

Impermeable (water can’t soak in) rocks mean increased run-off

Steep river gradient & small drainage basin & narrow river valley’s

The River Lyn had been narrowed and diverted - to build hotels & stuff!

…hmm – good idea? let me think …

slide6

the impacts

The narrow arch of the river became blocked & the river flowed down the main

street – following the easiest path

Over 100,000 tonnes of boulders left in the main street

– one boulder found in the basement of a hotel weighed

7.5 tonnes

Rocks of 10m3 moved by traction

34 people killed & 90 houses/hotels destroyed &

130 cars/19 boats destroyed

…this is all pretty serious stuff…

slide7

Lynmouth Today

  • River takes natural route (same as flood)
  • Floodplain left to take water
  • Larger & wider bridges
  • Where hotel was is now open
  • Channel has been straightened to allow

water to flow away more quickly

…phew! glad they did something…oh! one last thing!…