Level Impact on dyke Description
I Light Flooding, starting to affect dyke foot, causing moisture to the dyke body.
II Medium Starting to affect the dyke body (the pressure of water coming into the dyke), effervescence phenomenon
III Serious Many dyke problems such as: extrusion effervescent, infiltration, smuggling through dykes, dyke cracks, sliding dyke bodies; A broken dyke is unavoidable; Infrastructure damage is serious.