Boscastle is in North Cornwall and sits in a narrow and steep sided river valley. This was the confluence of two rivers.
Physical factors that contributed to the flood;
- The topography of the land, steep upstream valleys act as funnels, more surface meant the water reaches the river quicker.
- The ground is made of shale, slate and clay soils, meaning the water will not infiltrate.
- The natural chamel had been walled and couldn't adjust to the increase in water.
The flood was a 'flash flood', there was a quick…