Causes Of River Flooding

Rain

If it rains way to much the ground cannot soak it all up and the river then floods.

The Relief the land

The shape of the land: the hilly land can force the rain into a certain area and flat land keeps it all in the same place

Blocked Drains/Rivers

When there is no way to drain water the water piles build up and this results in flooding this also happens when there are no barriers stopping the water.

Dams

Dams break and the water that was stored there takes over the land

Deforestation

the tree roots create a barrier that the water cannot pass through easily as well as soaking up water. If you take away the trees you take away the protection they give you.

Resurfacing

resurfacing with concrete and other impermeable surfaces as well as buildings cause water to flow to the rivers at fast rate. Making it flow and rise faster.