Place several craft sticks into the ground at various spots in your garden and mark the height of the soil with a marker. Check your garden each day, especially after rain, to see if the soil has receded from the previous line. If so, make a new mark where the soil level is.
Check for gulleys that may have formed where water has run through your garden, washing away precious soil your plants need to grow. These gulleys look similar to a dry riverbed and can be shallow or deep depending on the speed and size of the water flow.
Make note of any new stones or roots that appear in your garden or other areas of your yard. These stones often appear because the soil that once covered them has washed away.
Check for soil that has collected in a low-lying area where there previously was none. When soil erodes, it often travels from a higher level to the lower levels where it is left behind when the water absorbs into the ground.