Levee Permeability
Levee and Soil Characteristics
1. If the levee was constructed wider, how would that affect the amount of water that
must be pumped? Why? What is the relationship between flow and levee width? (4
minutes)
2. If the water elevation outside the levee increases, how would that affect the amount of
water that must be pumped? Why? What is the relationship between flow and
increasing water elevation? (4 minutes)
3. If the soil beneath the levee was clay, sand or gravel, how would that affect the amount
of water that must be pumped? Why? What is the relationship between flow and soil
type? (4 minutes)
In work groups, discuss your answers to the supporting questions. (15 minutes)
Environments For Fostering Effective Critical Thinking (http://sdii.ce.sc.edu/effects)
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